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2012-03-14Merge tag 'v3.3-rc7' into x86/mceIngo Molnar
Merge reason: Update from an ancient -rc1 base to an almost-final stable kernel. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2012-03-13iscsi-target: Fix reservation conflict -EBUSY response handling bugNicholas Bellinger
This patch addresses a iscsi-target specific bug related to reservation conflict handling in iscsit_handle_scsi_cmd() that has been causing reservation conflicts to complete and not fail as expected due to incorrect errno checking. The problem occured with the change to return -EBUSY from transport_generic_cmd_sequencer() -> transport_generic_allocate_tasks() failures, that broke iscsit_handle_scsi_cmd() checking for -EINVAL in order to invoke a non GOOD status response. This was manifesting itself as data corruption with legacy SPC-2 reservations, but also effects iscsi-target LUNs with SPC-3 persistent reservations. This bug was originally introduced in lio-core commit: commit 03e98c9eb916f3f0868c1dc344dde2a60287ff72 Author: Nicholas Bellinger <nab@linux-iscsi.org> Date: Fri Nov 4 02:36:16 2011 -0700 target: Address legacy PYX_TRANSPORT_* return code breakage Reported-by: Martin Svec <martin.svec@zoner.cz> Cc: Martin Svec <martin.svec@zoner.cz> Cc: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-03-13target: Fix compatible reservation handling (CRH=1) with legacy RESERVE/RELEASENicholas Bellinger
This patch addresses a bug with target_check_scsi2_reservation_conflict() return checking in target_scsi2_reservation_[reserve,release]() that was preventing CRH=1 operation from silently succeeding in the two special cases defined by SPC-3, and not failing with reservation conflict status when dealing with legacy RESERVE/RELEASE + active SPC-3 PR logic. Also explictly set cmd->scsi_status = SAM_STAT_RESERVATION_CONFLICT during the early non reservation holder failure from pr_ops->t10_seq_non_holder() check in transport_generic_cmd_sequencer() for fabrics that already expect it to be set. This bug was originally introduced in mainline commit: commit eacac00ce5bfde8086cd0615fb53c986f7f970fe Author: Christoph Hellwig <hch@infradead.org> Date: Thu Nov 3 17:50:40 2011 -0400 target: split core_scsi2_emulate_crh Reported-by: Martin Svec <martin.svec@zoner.cz> Cc: Martin Svec <martin.svec@zoner.cz> Cc: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2012-03-13Input: tegra-kbc - revise device tree supportOlof Johansson
This is an incremental patch updating to the revised bindings for matrix keyboards. This includes an optional "linux,fn-keymap" binding that is not yet implemented, that will be used to specify the Fn-key modifier layout if needed. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Grant Likely <grant.likely@secretlab.ca> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-03-13Input: of_keymap - add device tree bindings for simple key matricesOlof Johansson
This adds a simple device tree binding for simple key matrix data and a helper to fill in the platform data. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2012-03-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking changes from David Miller: "The most important bit here is the TCP syncookies issue, which seems to have been busted for some time. That fix has been verified in production by the reporter. 1) Persistent TUN devices erroneously hold on to the network namespace in such a way that it cannot be shutdown. Fix from Stanislav Kinsbursky with help from Eric Dumazet. 2) TCP SYN cookies have been broken for a while due to how the route lookup flow key is managed, connections can be delayed by as much as 20 seconds due to this bug. Fix from Eric Dumazet. 3) Missing jiffies.h include in lib/dynamic_queue_limits.c can break the build, from Tom Herbert. 4) Add USB device ID for Sitecom LN-031, from Joerg Neikes. 5) Fix OOPS in delayed workqueue in iwlegacy, from Stanislaw Gruszka. 6) rt2x00 TX queue can be disabled forever due to races, fix by synchronizing pause/unpause with a lock. Also from Stanislaw Gruszka. 7) Statistics and endian fix in bnx2x driver from Yuval Mintz, Eilon Greenstein, and Ariel Elior." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: tun: don't hold network namespace by tun sockets bnx2x: FCoE statistics id fixed bnx2x: dcb bit indices flags used as bits bnx2x: added cpu_to_le16 when preparing ramrod's data bnx2x: pfc statistics counts pfc events twice rt2x00: fix random stalls iwl3945: fix possible il->txq NULL pointer dereference in delayed works dql: Fix undefined jiffies tcp: fix syncookie regression usb: asix: Patch for Sitecom LN-031
2012-03-14ep93xx: Configure GPIO ports in core codeRyan Mallon
Move the pinmux setting of the EP93xx GPIOs to the core code. This removes the need for the GPIO driver to have access to the system controller registers. Signed-off-by: Ryan Mallon <rmallon@gmail.com> Cc: Grant Likely <grant.likely@secretlab.ca> Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi> Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>
2012-03-14ep93xx: Convert the watchdog driver into a platform device.H Hartley Sweeten
Convert the ep93xx watchdog driver into a platform device and remove it's dependency on <mach/hardware.h>. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Ryan Mallon <rmallon@gmail.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Reviewed-by: Mika Westerberg <mika.westerberg@iki.fi> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-03-14ep93xx: Use ioremap for backlight driverRyan Mallon
The ep93xx backlight driver uses a single register within the framebuffer's register space. Currently the backlight driver uses a static IO mapping for the register since the memory cannot be requested by both drivers. Convert the static mapping to use ioremap so that we can remove the dependency on mach/hardware.h. To do so, we need remove the request_mem_region from both the backlight and framebuffer drivers, since whichever driver is loaded second will fail with -EBUSY otherwise. A proper fix is still required, and a FIXME comment has been added to both drivers. Signed-off-by: Ryan Mallon <rmallon@gmail.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> Cc: Mika Westerberg <mika.westerberg@iki.fi> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
2012-03-13Merge branch 'next/devel-samsung-pd' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers * 'next/devel-samsung-pd' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Hook up JPEG PD to generic PD infrastructure ARM: EXYNOS: Hook up G2D PD to generic PD infrastructure (plus two dependent branches from linux-pm)
2012-03-13xen/xenbus: ignore console/0Stefano Stabellini
Unfortunately xend creates a bogus console/0 frotend/backend entry pair on xenstore that console backends cannot properly cope with. Any guest behavior that is not completely ignoring console/0 is going to either cause problems with xenconsoled or qemu. Returning 0 or -ENODEV from xencons_probe is not enough because it is going to cause the frontend state to become 4 or 6 respectively. The best possible thing we can do here is just ignore the entry from xenbus_probe_frontend. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-03-13hvc_xen: introduce HVC_XEN_FRONTENDStefano Stabellini
Introduce a new config option HVC_XEN_FRONTEND to enable/disable the xenbus based pv console frontend. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-03-13hvc_xen: implement multiconsole supportStefano Stabellini
This patch implements support for multiple consoles: consoles other than the first one are setup using the traditional xenbus and grant-table based mechanism. We use a list to keep track of the allocated consoles, we don't expect too many of them anyway. Changes in v3: - call hvc_remove before removing the console from xenconsoles; - do not lock xencons_lock twice in the destruction path; - use the DEFINE_XENBUS_DRIVER macro. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-03-13hvc_xen: support PV on HVM consolesStefano Stabellini
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2012-03-13regulator: tps65910: Provide settling time for enabling railsLaxman Dewangan
There is settling time for each rails when it is switched to ON. Implementing enable time for returning proper settling time of regulator rails when it is enabled. Filling the on-time for each rail as per tps65910/tps65911 datasheets. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13Merge branch 'next/devel-samsung-dma' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers * 'next/devel-samsung-dma' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: add support DMA for EXYNOS4X12 SoC ARM: EXYNOS: Add apb_pclk clkdev entry for mdma1 ARM: EXYNOS: Enable MDMA driver (includes dependent base of samsung/cleanup-exynos-clock)
2012-03-13Merge branch 'next/devel-samsung-mmc' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/drivers * 'next/devel-samsung-mmc' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: SAMSUNG: change the name from s3c-sdhci to exynos4-sdhci mmc: sdhci-s3c: add platform data for the second capability ARM: SAMSUNG: support the second capability for samsung-soc
2012-03-13Merge branch 'viafb-next' of git://github.com/schandinat/linux-2.6 into ↵Florian Tobias Schandinat
fbdev-next
2012-03-13regulator: max8925: Use DIV_ROUND_UP macroAxel Lin
Use DIV_ROUND_UP macro for better readability. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13regulator: tps65912: Use simple equations to get register addressAxel Lin
The address of ctrl and sel registers can be calculated by simple equations. This patch simplifies the implementation in tps65912_get_ctrl_register and implements tps65912_get_sel_register to replace tps65912_get_dcdc_sel_register and tps65912_get_ldo_sel_register. Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13usb: Don't make USB_ARCH_HAS_{XHCI,OHCI,EHCI} depend on USB_SUPPORT.David Daney
The fact that an architecture/board has XHCI, OHCI or EHCI does not depend on the fact that the kernel is configured with USB_SUPPORT. Make the Kconfig reflect this fact thus avoiding ugly messages like: warning: (MIPS_ALCHEMY && CAVIUM_OCTEON_REFERENCE_BOARD && SOC_AR71XX && SOC_AR724X && SOC_AR913X && SOC_AR933X) selects USB_ARCH_HAS_EHCI which has unmet direct dependencies (USB_SUPPORT) Signed-off-by: David Daney <david.daney@cavium.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13regulator: Fix the logic of tps65910_get_modeAxel Lin
We actually clear LDO_ST_ON_BIT for standby mode in tps65910_set_mode. Fix the logic in tps65910_get_mode. Supply state (EEPROM bits): ST[1:0] = 00 : Off ST[1:0] = 01 : On high power (ACTIVE) ST[1:0] = 10 : Off ST[1:0] = 11 : On low power (SLEEP) Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2012-03-13Merge branch 'for-next' of git://linuxtv.org/pinchartl/fbdev into fbdev-nextFlorian Tobias Schandinat
2012-03-13drivers/video/pvr2fb.c: ensure arguments to request_irq and free_irq are ↵Julia Lawall
compatible Convert calls to free_irq so that the second argument is the same as the last argument of the corresponding call to request_irq. Without this property, free_irq does nothing. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
2012-03-13Merge branch 'next/cleanup-exynos-clock' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup * 'next/cleanup-exynos-clock' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver ARM: EXYNOS: add clock registers for exynos4x12-cpufreq PM / devfreq: update the name of EXYNOS clock registers that were omitted PM / devfreq: update the name of EXYNOS clock register ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock ARM: EXYNOS: use static declaration on regarding clock ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs (includes an update to v3.3-rc6)
2012-03-13drivers:staging:mei Fix some typos in staging/meiJustin P. Mattock
The below patch fixes some typos in drivers/staging/mei/* that I have found while doing a little bit of reading. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13staging: drm/omap: use current time for page-flip eventRob Clark
Because we don't have vblank hooked up via drm_irq (which is a bit awkward due to separation between omapdss (which knows the irq #) and omapdrm, for now use gettimeofday to have a semi-sane timestamp in the page-flip event. Otherwise apps like weston drm compositor, which use the timestamp in it's animations, get highly confused. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13staging: drm/omap: send page-flip event after endwinRob Clark
The endwin irq indicates that DSS has finished scanning out a buffer. Use this to trigger page-flip event to userspace, so this happens only *after* the previous buffer is finished. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13staging: drm/omap: avoid multiple planes having same z-orderRob Clark
Multiple video pipes on same output with same z-order is an undefined behavior. Set a unique z-order value based on overlay number/id. Signed-off-by: Rob Clark <rob@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13sh_mmcif / PM: Use PM QoS latency constraintRafael J. Wysocki
Make sh_mmcif call dev_pm_qos_expose_latency_limit() to expose the PM QoS latency limit to user space and specify the initial value of it as 100 microseconds. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-13tmio_mmc / PM: Use PM QoS latency constraintRafael J. Wysocki
Make tmio_mmc call dev_pm_qos_expose_latency_limit() to expose the PM QoS latency limit to user space and specify the initial value of it as 100 microseconds. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-03-13PM / QoS: Make it possible to expose PM QoS latency constraintsRafael J. Wysocki
A runtime suspend of a device (e.g. an MMC controller) belonging to a power domain or, in a more complicated scenario, a runtime suspend of another device in the same power domain, may cause power to be removed from the entire domain. In that case, the amount of time necessary to runtime-resume the given device (e.g. the MMC controller) is often substantially greater than the time needed to run its driver's runtime resume callback. That may hurt performance in some situations, because user data may need to wait for the device to become operational, so we should make it possible to prevent that from happening. For this reason, introduce a new sysfs attribute for devices, power/pm_qos_resume_latency_us, allowing user space to specify the upper bound of the time necessary to bring the (runtime-suspended) device up after the resume of it has been requested. However, make that attribute appear only for the devices whose drivers declare support for it by calling the (new) dev_pm_qos_expose_latency_limit() helper function with the appropriate initial value of the attribute. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Reviewed-by: Kevin Hilman <khilman@ti.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2012-03-13Drivers: hv: Add new message types to enhance KVPK. Y. Srinivasan
Add additional KVP (Key Value Pair) protocol messages to enhance KVP functionality for Linux guests on Hyper-V. As part of this, patch define an explicit version negoitiation message. Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13serial: bfin-uart: Don't access tty circular buffer in TX DMA interrupt ↵Sonic Zhang
after it is reset. When kernel reboot, tty circular buffer is reset before last TX DMA interrupt is called, while the buffer tail is updated in TX DMA interrupt handler. So, don't update the buffer tail if it is reset. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13usb gadget: fix a section mismatch when compiling g_ffs with ↵Lothar Waßmann
CONFIG_USB_FUNCTIONFS_ETH commit 28824b18ac4705e876a282a15ea0de8fc957551f: |Author: Michal Nazarewicz <m.nazarewicz@samsung.com> |Date: Wed May 5 12:53:13 2010 +0200 | | USB: gadget: __init and __exit tags removed | | __init, __initdata and __exit tags have have been removed from | various files to make it possible for gadgets that do not use | the __init/__exit tags to use those. obviously missed (at least) this case leading to a section mismatch in g_ffs.c when compiling with CONFIG_USB_FUNCTIONFS_ETH enabled. Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de> Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13USB: ohci-nxp: Remove i2c_write(), use smbusRoland Stigge
This patch removes the re-coded i2c_write function from the ohci-nxp driver in favour of using just smbus functions. Signed-off-by: Roland Stigge <stigge@antcom.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13USB: ohci-nxp: Support for LPC32xxRoland Stigge
This patch adds support for the LPC32xx to ohci-nxp Signed-off-by: Roland Stigge <stigge@antcom.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13USB: ohci-nxp: Rename symbols from pnx4008 to nxpRoland Stigge
Since this driver is compatible with several NXP devices, the driver was renamed accordingly. This patch also changes the respective symbol names. Signed-off-by: Roland Stigge <stigge@antcom.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13USB: OHCI-HCD: Rename ohci-pnx4008 to ohci-nxpRoland Stigge
Since this driver is compatible with several NXP devices, the driver is renamed accordingly. Please combine with the following patch which also changes the respective symbol names. Signed-off-by: Roland Stigge <stigge@antcom.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13usb: gadget: Kconfig: fix typo for 'different'Fabio Baltieri
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com> Reviewed-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13usb: dwc3: pci: fix another failure path in dwc3_pci_probe()Felipe Balbi
When applying commit 7d26b58 (fix failure path in dwc3_pci_probe()), I mistakenly left out one of the possible failures where we would return success even on the error case. This patch fixes that mistake. Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13USB: dynamically allocate usb_device children pointers instead of using a ↵Huajun Li
fix array Non-hub device has no child, and even a real USB hub has ports far less than USB_MAXCHILDREN, so there is no need using a fix array for child devices, just allocate it dynamically according real port number. Signed-off-by: Huajun Li <huajun.li.lee@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-03-13pata_cmd64x: implement sff_irq_check() methodSergei Shtylyov
Implement sff_irq_check() method for both old and new chips. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-03-13pata_cmd64x: implement sff_irq_clear() methodSergei Shtylyov
Convert the driver's two bmdma_stop() methods into sff_irq_clear() methods -- they shouldn't have been bothering with clearing interrupts from the very start; the driver will now use the standard bmdma_stop() method implementation (where appropriate). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-03-13pata_cmd64x: use interrupt status from MRDMODE registerSergei Shtylyov
Start using faster version of the bmdma_stop() method for the PCI0646U and newer chips that have the duplicate interrupt status bits in the I/O mapped MRDMODE register. Use the old, slow bmdma_stop() method on the older chips, taking into account that the interrupt bits are not coupled to DMA and that's enough to read the register to clear the interrupt (on the older chips). Determine what method to use at the driver load time. Fix kernel-doc of the bmdma_stop() methods, while at it. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-03-13pata_cmd64x: turn string of *if* statements into *switch*Sergei Shtylyov
Convert string of the *if* statements all checking 'pdev->revision' into more natural *switch* statement. While at it, somewhat clarify the comments there... Increment the driver version, accounting for the patches that neglected to do this in the past. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-03-13drivers/ata/pata_mpc52xx.c: clean up error handling codeJulia Lawall
This patch makes a number of changes with respect to the error-handling code: * Remove cleanup calls for the devm functions in both the error handling code and the remove function. This cleanup is done automatically. * The previous change simplifies the cleanup code at the end of the function such that there is nothing to do on the failure of the call to devm_ioremap. So it is changed to just return directly. * There is no need for the ifs in the cleanup code at the end of the function, because in each case the cleanup needed is statically known. Drop the ifs, add new err labels, and drop the initializations of the tested variables to NULL. * Change the call to request_irq to a call to devm_request_irq, so that it is cleaned up on exit. * Cause the return value of devm_request_irq to go into the returned variable rv rather than the unused variable ret. Drop ret. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-03-13ahci_platform: add STRICT_AHCI platform typeBrian Norris
Some platforms need to make use of the AHCI_HFLAG_DELAY_ENGINE flag. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Cc: stable@kernel.org
2012-03-13ahci: move AHCI_HFLAGS() macro to ahci.hBrian Norris
We will need this macro in both ahci.c and ahci_platform.c, so just move it to the header. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Cc: stable@kernel.org
2012-03-13ahci: add AHCI_HFLAG_DELAY_ENGINE host flagBrian Norris
The following commit was intended to fix problems with specific AHCI controller(s) that would become bricks if the AHCI specification was not followed strictly (that is, if ahci_start_engine() was called while the controller was in the wrong state): commit 7faa33da9b7add01db9f1ad92c6a5d9145e940a7 ahci: start engine only during soft/hard resets However, some devices currently have issues with that fix, so we must implement a flag that delays the ahci_start_engine() call only for specific controllers. This commit simply introduces the flag, without enabling it in any driver. Note that even when AHCI_HFLAG_DELAY_ENGINE is not enabled, this patch does not constitue a full revert to commit 7faa33da; there is still a change in behavior to the ahci_port_suspend() failure path. Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Cc: stable@kernel.org
generated by cgit (git 2.34.1) at 2025-09-22 08:36:14 +0000