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authorLinus Torvalds <torvalds@linux-foundation.org>2020-03-30 11:43:51 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-03-30 11:43:51 -0700
commit1592614838cb52f4313ceff64894e2ca78591498 (patch)
treecdb83d2edd58f274b458fc74ec2903436bc6963a /arch/arm
parent10f36b1e80a9f7afdaefe6f0b06dcdf89715eed7 (diff)
parent766c3297d7e1584394d4af0cc8368e838124b023 (diff)
Merge tag 'for-5.7/drivers-2020-03-29' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe: - floppy driver cleanup series from Willy - NVMe updates and fixes (Various) - null_blk trace improvements (Chaitanya) - bcache fixes (Coly) - md fixes (via Song) - loop block size change optimizations (Martijn) - scnprintf() use (Takashi) * tag 'for-5.7/drivers-2020-03-29' of git://git.kernel.dk/linux-block: (81 commits) null_blk: add trace in null_blk_zoned.c null_blk: add tracepoint helpers for zoned mode block: add a zone condition debug helper nvme: cleanup namespace identifier reporting in nvme_init_ns_head nvme: rename __nvme_find_ns_head to nvme_find_ns_head nvme: refactor nvme_identify_ns_descs error handling nvme-tcp: Add warning on state change failure at nvme_tcp_setup_ctrl nvme-rdma: Add warning on state change failure at nvme_rdma_setup_ctrl nvme: Fix controller creation races with teardown flow nvme: Make nvme_uninit_ctrl symmetric to nvme_init_ctrl nvme: Fix ctrl use-after-free during sysfs deletion nvme-pci: Re-order nvme_pci_free_ctrl nvme: Remove unused return code from nvme_delete_ctrl_sync nvme: Use nvme_state_terminal helper nvme: release ida resources nvme: Add compat_ioctl handler for NVME_IOCTL_SUBMIT_IO nvmet-tcp: optimize tcp stack TX when data digest is used nvme-fabrics: Use scnprintf() for avoiding potential buffer overflow nvme-multipath: do not reset on unknown status nvmet-rdma: allocate RW ctxs according to mdts ...
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/include/asm/floppy.h88
1 files changed, 13 insertions, 75 deletions
diff --git a/arch/arm/include/asm/floppy.h b/arch/arm/include/asm/floppy.h
index f4fe4d02cef2..79fa327238e8 100644
--- a/arch/arm/include/asm/floppy.h
+++ b/arch/arm/include/asm/floppy.h
@@ -8,16 +8,18 @@
*/
#ifndef __ASM_ARM_FLOPPY_H
#define __ASM_ARM_FLOPPY_H
-#if 0
-#include <mach/floppy.h>
-#endif
-#define fd_outb(val,port) \
- do { \
- if ((port) == (u32)FD_DOR) \
- fd_setdor((val)); \
- else \
- outb((val),(port)); \
+#define fd_outb(val,port) \
+ do { \
+ int new_val = (val); \
+ if (((port) & 7) == FD_DOR) { \
+ if (new_val & 0xf0) \
+ new_val = (new_val & 0x0c) | \
+ floppy_selects[new_val & 3]; \
+ else \
+ new_val &= 0x0c; \
+ } \
+ outb(new_val, (port)); \
} while(0)
#define fd_inb(port) inb((port))
@@ -53,69 +55,7 @@ static inline int fd_dma_setup(void *data, unsigned int length,
* to a non-zero track, and then restoring it to track 0. If an error occurs,
* then there is no floppy drive present. [to be put back in again]
*/
-static unsigned char floppy_selects[2][4] =
-{
- { 0x10, 0x21, 0x23, 0x33 },
- { 0x10, 0x21, 0x23, 0x33 }
-};
-
-#define fd_setdor(dor) \
-do { \
- int new_dor = (dor); \
- if (new_dor & 0xf0) \
- new_dor = (new_dor & 0x0c) | floppy_selects[fdc][new_dor & 3]; \
- else \
- new_dor &= 0x0c; \
- outb(new_dor, FD_DOR); \
-} while (0)
-
-/*
- * Someday, we'll automatically detect which drives are present...
- */
-static inline void fd_scandrives (void)
-{
-#if 0
- int floppy, drive_count;
-
- fd_disable_irq();
- raw_cmd = &default_raw_cmd;
- raw_cmd->flags = FD_RAW_SPIN | FD_RAW_NEED_SEEK;
- raw_cmd->track = 0;
- raw_cmd->rate = ?;
- drive_count = 0;
- for (floppy = 0; floppy < 4; floppy ++) {
- current_drive = drive_count;
- /*
- * Turn on floppy motor
- */
- if (start_motor(redo_fd_request))
- continue;
- /*
- * Set up FDC
- */
- fdc_specify();
- /*
- * Tell FDC to recalibrate
- */
- output_byte(FD_RECALIBRATE);
- LAST_OUT(UNIT(floppy));
- /* wait for command to complete */
- if (!successful) {
- int i;
- for (i = drive_count; i < 3; i--)
- floppy_selects[fdc][i] = floppy_selects[fdc][i + 1];
- floppy_selects[fdc][3] = 0;
- floppy -= 1;
- } else
- drive_count++;
- }
-#else
- floppy_selects[0][0] = 0x10;
- floppy_selects[0][1] = 0x21;
- floppy_selects[0][2] = 0x23;
- floppy_selects[0][3] = 0x33;
-#endif
-}
+static unsigned char floppy_selects[4] = { 0x10, 0x21, 0x23, 0x33 };
#define FDC1 (0x3f0)
@@ -135,9 +75,7 @@ static inline void fd_scandrives (void)
*/
static void driveswap(int *ints, int dummy, int dummy2)
{
- floppy_selects[0][0] ^= floppy_selects[0][1];
- floppy_selects[0][1] ^= floppy_selects[0][0];
- floppy_selects[0][0] ^= floppy_selects[0][1];
+ swap(floppy_selects[0], floppy_selects[1]);
}
#define EXTRA_FLOPPY_PARAMS ,{ "driveswap", &driveswap, NULL, 0, 0 }