openwrt/staging/blogic.git
12 years agommc: use really long write timeout to deal with crappy cards
Paul Walmsley [Mon, 12 Mar 2012 10:58:00 +0000 (04:58 -0600)]
mmc: use really long write timeout to deal with crappy cards

Several people have noticed that crappy SD cards take much longer to
complete multiple block writes than the 300ms that Linux specifies.
Try to work around this by using a three second write timeout instead.

This is a generalized version of a patch from Chase Maupin
<Chase.Maupin@ti.com>, whose patch description said:

* With certain SD cards timeouts like the following have been seen
  due to an improper calculation of the dto value:
    mmcblk0: error -110 transferring data, sector 4126233, nr 8,
    card status 0xc00
* By removing the dto calculation and setting the timeout value
  to the maximum specified by the SD card specification part A2
  section 2.2.15 these timeouts can be avoided.
* This change has been used by beagleboard users as well as the
  Texas Instruments SDK without a negative impact.
* There are multiple discussion threads about this but the most
  relevant ones are:
    * http://talk.maemo.org/showthread.php?p=1000707#post1000707
    * http://www.mail-archive.com/linux-omap@vger.kernel.org/msg42213.html
* Original proposal for this fix was done by Sukumar Ghoral of
  Texas Instruments
* Tested using a Texas Instruments AM335x EVM

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhci-dove: Fix compile error by including module.h
Alf Høgemark [Wed, 4 Apr 2012 16:27:09 +0000 (12:27 -0400)]
mmc: sdhci-dove: Fix compile error by including module.h

This patch fixes a compile error in drivers/mmc/host/sdhci-dove.c
by including the linux/module.h file.

Signed-off-by: Alf Høgemark <alf@i100.no>
Cc: <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: Prevent 1.8V switch for SD hosts that don't support UHS modes.
Al Cooper [Fri, 16 Mar 2012 19:54:17 +0000 (15:54 -0400)]
mmc: Prevent 1.8V switch for SD hosts that don't support UHS modes.

The driver should not try to switch to 1.8V when the SD 3.0 host
controller does not have any UHS capabilities bits set (SDR50, DDR50
or SDR104). See page 72 of "SD Specifications Part A2 SD Host
Controller Simplified Specification Version 3.00" under
"1.8V Signaling Enable". Instead of setting SDR12 and SDR25 in the host
capabilities data structure for all V3.0 host controllers, only set them
if SDR104, SDR50 or DDR50 is set in the host capabilities register. This
will prevent the switch to 1.8V later.

Signed-off-by: Al Cooper <acooper@gmail.com>
Acked-by: Arindam Nath <arindam.nath@amd.com>
Acked-by: Philip Rakity <prakity@marvell.com>
Acked-by: Girish K S <girish.shivananjappa@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agoRevert "mmc: sdhci-pci: Add MSI support"
Chris Ball [Tue, 3 Apr 2012 20:48:32 +0000 (16:48 -0400)]
Revert "mmc: sdhci-pci: Add MSI support"

This reverts commit e6039832bed9a9b967796d7021f17f25b625b616.
There are reports of MSI breaking SDHCI on multiple chipsets (JMicron
and O2Micro, at least), so this should be reverted until we come up
with a whitelist or something.

Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agoRevert "mmc: sdhci-pci: add quirks for broken MSI on O2Micro controllers"
Chris Ball [Tue, 3 Apr 2012 20:47:55 +0000 (16:47 -0400)]
Revert "mmc: sdhci-pci: add quirks for broken MSI on O2Micro controllers"

This reverts commit c16e981b2fd9455af670a69a84f4c8cf07e12658, because
it's no longer useful once MSI support is reverted.

Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: core: fix power class selection
Subhash Jadavani [Tue, 3 Apr 2012 06:55:58 +0000 (12:25 +0530)]
mmc: core: fix power class selection

mmc_select_powerclass() function returns error if eMMC
VDD level supported by host is between 2.7v to 3.2v.

According to eMMC specification, valid voltage for high
voltage cards is 2.7v to 3.6v. This patch ensures that
2.7v to 3.6v VDD range is treated as valid range.

Also, failure to set the power class shouldn't be treated
as fatal error because even if setting the power class
fails, card can still work in default power class.
If mmc_select_powerclass() returns error, just print
the warning message and go ahead with rest of the card
initialization.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Acked-by: Girish K S <girish.shivananjappa@linaro.org>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: omap_hsmmc: fix module re-insertion
Balaji T K [Mon, 2 Apr 2012 06:56:47 +0000 (12:26 +0530)]
mmc: omap_hsmmc: fix module re-insertion

OMAP4 and OMAP3 HSMMC IP registers differ by 0x100 offset.
Adding the offset to platform_device resource structure
increments the start address for every insmod operation.
MMC command fails on re-insertion as module due to incorrect register
base.  Fix this by updating the ioremap base address only.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: omap_hsmmc: convert to module_platform_driver
Felipe Balbi [Wed, 14 Mar 2012 09:18:32 +0000 (11:18 +0200)]
mmc: omap_hsmmc: convert to module_platform_driver

This will delete some boilerplate code, no functional changes.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: omap_hsmmc: make it behave well as a module
Felipe Balbi [Wed, 14 Mar 2012 09:18:28 +0000 (11:18 +0200)]
mmc: omap_hsmmc: make it behave well as a module

If we put probe() on __init section, that will never work for multiple
module insertions/removals.

In order to make it work properly, move probe to __devinit section and
use platform_driver_register() instead of platform_driver_probe().

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: omap_hsmmc: trivial cleanups
Felipe Balbi [Wed, 14 Mar 2012 09:18:27 +0000 (11:18 +0200)]
mmc: omap_hsmmc: trivial cleanups

A bunch of non-functional cleanups to the omap_hsmmc driver.

It basically decreases indentation level, drop unneded dereferences
and drop unneded accesses to the platform_device structure.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: omap_hsmmc: context save after enabling runtime pm
Balaji T K [Fri, 24 Feb 2012 15:44:34 +0000 (21:14 +0530)]
mmc: omap_hsmmc: context save after enabling runtime pm

Call context save api after enabling runtime pm to make sure that
register access in context save api happens with clk enabled.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: omap_hsmmc: use runtime put sync in probe error patch
Balaji T K [Fri, 24 Feb 2012 15:44:33 +0000 (21:14 +0530)]
mmc: omap_hsmmc: use runtime put sync in probe error patch

pm_runtime_put_sync instead of autosuspend pm runtime API
because iounmap(host->base) follows immediately.

Reported-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Venkatraman S <svenkatr@ti.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdio: Use empty system suspend/resume callbacks at the bus level
Rafael J. Wysocki [Sun, 1 Apr 2012 04:34:58 +0000 (00:34 -0400)]
mmc: sdio: Use empty system suspend/resume callbacks at the bus level

Neil Brown reports that commit 35cd133c

   PM: Run the driver callback directly if the subsystem one is not there

breaks suspend for his libertas wifi, because SDIO has a protocol
where the suspend method can return -ENOSYS and this means "There is
no point in suspending, just turn me off".  Moreover, the suspend
methods provided by SDIO drivers are not supposed to be called by
the PM core or bus-level suspend routines (which aren't presend for
SDIO).  Instead, when the SDIO core gets to suspend the device's
ancestor, it calls the device driver's suspend function, catches the
ENOSYS, and turns the device off.

The commit above breaks the SDIO core's assumption that the device
drivers' callbacks won't be executed if it doesn't provide any
bus-level callbacks.  If fact, however, this assumption has never
been really satisfied, because device class or device type suspend
might very well use the driver's callback even without that commit.

The simplest way to address this problem is to make the SDIO core
tell the PM core to ignore driver callbacks, for example by providing
no-operation suspend/resume callbacks at the bus level for it,
which is implemented by this change.

Reported-and-tested-by: Neil Brown <neilb@suse.de>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
[stable: please apply to 3.3-stable only]
Cc: <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: bus: print bus speed mode of UHS-I card
Subhash Jadavani [Fri, 30 Mar 2012 06:40:18 +0000 (12:10 +0530)]
mmc: bus: print bus speed mode of UHS-I card

When UHS-I card is detected also print the bus speed mode in which
UHS-I card will be running.

Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Aaron Lu <aaron.lu@amd.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhci-pci: add quirks for broken MSI on O2Micro controllers
Manuel Lauss [Thu, 29 Mar 2012 17:05:04 +0000 (19:05 +0200)]
mmc: sdhci-pci: add quirks for broken MSI on O2Micro controllers

MSI on my O2Micro OZ600 SD card reader is broken.  This patch adds a quirk
to disable MSI on these controllers.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sh_mmcif: Simplify calculation of mmc->f_min
Simon Horman [Wed, 28 Mar 2012 09:01:11 +0000 (18:01 +0900)]
mmc: sh_mmcif: Simplify calculation of mmc->f_min

There is no need to tune mmc->f_min to a value near 400kHz as the MMC core
begins testing frequencies at 400kHz regardless of the value of mmc->f_min.

As suggested by Guennadi Liakhovetski.

Cc: Magnus Damm <magnus.damm@gmail.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Tested-by: Cao Minh Hiep <hiepcm@gmail.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sh_mmcif: mmc->f_max should be half of the bus clock
Simon Horman [Wed, 28 Mar 2012 09:01:10 +0000 (18:01 +0900)]
mmc: sh_mmcif: mmc->f_max should be half of the bus clock

mmc->f_max should be half of the bus clock.
And now that mmc->f_max is not equal to the bus clock the
latter should be used directly to calculate mmc->f_min.

Cc: Magnus Damm <magnus.damm@gmail.com>
Tested-by: Cao Minh Hiep <hiepcm@gmail.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sh_mmcif: double clock speed
Simon Horman [Wed, 28 Mar 2012 09:01:09 +0000 (18:01 +0900)]
mmc: sh_mmcif: double clock speed

Correct an off-by one error when calculating the clock divisor in cases
where the host clock is a power of two of the target clock.  Previously the
divisor was one greater than the correct value in these cases leading to
the clock being set at half the desired speed.

Thanks to Guennadi Liakhovetski for working with me on the logic for this
change.

Tested-by: Cao Minh Hiep <hiepcm@gmail.com>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: block: Remove use of mmc_blk_set_blksize
Ulf Hansson [Thu, 22 Mar 2012 10:47:26 +0000 (11:47 +0100)]
mmc: block: Remove use of mmc_blk_set_blksize

According to the specifications for SD and (e)MMC default
blocksize (named BLOCKLEN in Spec.) must always be 512
bytes. Since we hardcoded to always use 512 bytes, we do
not explicitly have to set it. Future improvements should
potentially make it possible to use a greater blocksize
than 512 bytes, but until then let's skip this.

Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Reviewed-by: Subhash Jadavani <subhashj@codeauora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: atmel-mci: add support for odd clock dividers
Ludovic Desroches [Wed, 21 Mar 2012 15:41:23 +0000 (16:41 +0100)]
mmc: atmel-mci: add support for odd clock dividers

Add an odd clock divider capability available from v5xx. It also involves
changing the clock divider calculation, and changing the switch-case
statement to use top-down fallthrough.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: atmel-mci: r/w proof capability only available since v2xx
Ludovic Desroches [Wed, 21 Mar 2012 15:41:22 +0000 (16:41 +0100)]
mmc: atmel-mci: r/w proof capability only available since v2xx

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: atmel-mci: correct data timeout computation
Ludovic Desroches [Wed, 28 Mar 2012 10:28:33 +0000 (12:28 +0200)]
mmc: atmel-mci: correct data timeout computation

The HSMCI operates at a rate of up to Master Clock divided by two.
Moreover previous calculation can cause overflows and so wrong
timeouts.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhci-s3c: Enable runtime power management
Mark Brown [Sun, 1 Apr 2012 03:31:55 +0000 (23:31 -0400)]
mmc: sdhci-s3c: Enable runtime power management

Since most of the work is already done by the core we just need to add
runtime suspend methods and tell the PM core that runtime PM is enabled
for this device.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhci-s3c: Use CONFIG_PM_SLEEP to ifdef system suspend
Mark Brown [Sat, 3 Mar 2012 00:46:41 +0000 (00:46 +0000)]
mmc: sdhci-s3c: Use CONFIG_PM_SLEEP to ifdef system suspend

This matches current best practice as one can have runtime PM enabled
without system sleep and CONFIG_PM is defined for both.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhci-s3c: use devm_ functions
Julia Lawall [Fri, 9 Mar 2012 04:24:53 +0000 (23:24 -0500)]
mmc: sdhci-s3c: use devm_ functions

The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

By using devm_ioremap, it also removes a potential memory leak, because
there was no call to iounmap in the probe function.

The call to platform_get_resource was moved just to make it closer to the
place where its result it used.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhci-s3c: Keep a copy of platform data and use it
Thomas Abraham [Thu, 16 Feb 2012 13:23:59 +0000 (22:23 +0900)]
mmc: sdhci-s3c: Keep a copy of platform data and use it

The platform data is copied into driver's private data and the copy is
used for all access to the platform data. This simpifies the addition
of device tree support for the sdhci-s3c driver.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhci-s3c: derive transfer width host cap from max_width in platdata
Thomas Abraham [Sun, 1 Apr 2012 03:29:45 +0000 (23:29 -0400)]
mmc: sdhci-s3c: derive transfer width host cap from max_width in platdata

max_width member in platform data can be used to derive the mmc bus transfer
width that can be supported by the controller.

Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhci-s3c: Remove usage of clk_type member in platform data
Thomas Abraham [Thu, 16 Feb 2012 13:23:58 +0000 (22:23 +0900)]
mmc: sdhci-s3c: Remove usage of clk_type member in platform data

SDHCI controllers on Exynos4 do not include the sdclk divider as per the
sdhci controller specification. This case can be represented using the
sdhci quirk SDHCI_QUIRK_NONSTANDARD_CLOCK instead of using an additional
enum type definition 'clk_types'.

Hence, usage of clk_type member in platform data is removed and the sdhci
quirk is used. In addition to that, since this qurik is SoC specific,
driver data is introduced to represent controllers on SoC's that require
this quirk.

Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Jeongbae Seo <jeongbae.seo@samsung.com>
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agoLinux 3.4-rc1
Linus Torvalds [Sat, 31 Mar 2012 23:24:09 +0000 (16:24 -0700)]
Linux 3.4-rc1

12 years agoMerge branch 's3-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/amit/virti...
Linus Torvalds [Sat, 31 Mar 2012 22:11:39 +0000 (15:11 -0700)]
Merge branch 's3-for-3.4' of git://git./linux/kernel/git/amit/virtio-console

Pull virtio S3 support patches from Amit Shah:
 "Turns out S3 is not different from S4 for virtio devices: the device
  is assumed to be reset, so the host and guest state are to be assumed
  to be out of sync upon resume.  We handle the S4 case with exactly the
  same scenario, so just point the suspend/resume routines to the
  freeze/restore ones.

  Once that is done, we also use the PM API's macro to initialise the
  sleep functions.

  A couple of cleanups are included: there's no need for special thaw
  processing in the balloon driver, so that's addressed in patches 1 and
  2.

  Testing: both S3 and S4 support have been tested using these patches
  using a similar method used earlier during S4 patch development: a
  guest is started with virtio-blk as the only disk, a virtio network
  card, a virtio-serial port and a virtio balloon device.  Ping from
  guest to host, dd /dev/zero to a file on the disk, and IO from the
  host on the virtio-serial port, all at once, while exercising S4 and
  S3 (separately) were tested.  They all continue to work fine after
  resume.  virtio balloon values too were tested by inflating and
  deflating the balloon."

Pulling from Amit, since Rusty is off getting married (and presumably
shaving people).

* 's3-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/amit/virtio-console:
  virtio-pci: switch to PM ops macro to initialise PM functions
  virtio-pci: S3 support
  virtio-pci: drop restore_common()
  virtio: drop thaw PM operation
  virtio: balloon: Allow stats update after restore from S4

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sat, 31 Mar 2012 20:42:57 +0000 (13:42 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs

Pull second try at vfs part d#2 from Al Viro:
 "Miklos' first series (with do_lookup() rewrite split into edible
  chunks) + assorted bits and pieces.

  The 'untangling of do_lookup()' series is is a splitup of what used to
  be a monolithic patch from Miklos, so this series is basically "how do
  I convince myself that his patch is correct (or find a hole in it)".
  No holes found and I like the resulting cleanup, so in it went..."

Changes from try 1: Fix a boot problem with selinux, and commit messages
prettied up a bit.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (24 commits)
  vfs: fix out-of-date dentry_unhash() comment
  vfs: split __lookup_hash
  untangling do_lookup() - take __lookup_hash()-calling case out of line.
  untangling do_lookup() - switch to calling __lookup_hash()
  untangling do_lookup() - merge d_alloc_and_lookup() callers
  untangling do_lookup() - merge failure exits in !dentry case
  untangling do_lookup() - massage !dentry case towards __lookup_hash()
  untangling do_lookup() - get rid of need_reval in !dentry case
  untangling do_lookup() - eliminate a loop.
  untangling do_lookup() - expand the area under ->i_mutex
  untangling do_lookup() - isolate !dentry stuff from the rest of it.
  vfs: move MAY_EXEC check from __lookup_hash()
  vfs: don't revalidate just looked up dentry
  vfs: fix d_need_lookup/d_revalidate order in do_lookup
  ext3: move headers to fs/ext3/
  migrate ext2_fs.h guts to fs/ext2/ext2.h
  new helper: ext2_image_size()
  get rid of pointless includes of ext2_fs.h
  ext2: No longer export ext2_fs.h to user space
  mtdchar: kill persistently held vfsmount
  ...

12 years agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 31 Mar 2012 20:35:31 +0000 (13:35 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar.

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq()
  sched: Fix __schedule_bug() output when called from an interrupt
  sched/arch: Introduce the finish_arch_post_lock_switch() scheduler callback

12 years agoMerge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 31 Mar 2012 20:34:04 +0000 (13:34 -0700)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull perf updates and fixes from Ingo Molnar:
 "It's mostly fixes, but there's also two late items:

   - preliminary GTK GUI support for perf report
   - PMU raw event format descriptors in sysfs, to be parsed by tooling

  The raw event format in sysfs is a new ABI.  For example for the 'CPU'
  PMU we have:

    aldebaran:~> ll /sys/bus/event_source/devices/cpu/format/*
    -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/any
    -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/cmask
    -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/edge
    -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/event
    -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/inv
    -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/offcore_rsp
    -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/pc
    -r--r--r--. 1 root root 4096 Mar 31 10:29 /sys/bus/event_source/devices/cpu/format/umask

  those lists of fields contain a specific format:

    aldebaran:~> cat /sys/bus/event_source/devices/cpu/format/offcore_rsp
    config1:0-63

  So, those who wish to specify raw events can now use the following
  event format:

    -e cpu/cmask=1,event=2,umask=3

  Most people will not want to specify any events (let alone raw
  events), they'll just use whatever default event the tools use.

  But for more obscure PMU events that have no cross-architecture
  generic events the above syntax is more usable and a bit more
  structured than specifying hex numbers."

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
  perf tools: Remove auto-generated bison/flex files
  perf annotate: Fix off by one symbol hist size allocation and hit accounting
  perf tools: Add missing ref-cycles event back to event parser
  perf annotate: addr2line wants addresses in same format as objdump
  perf probe: Finder fails to resolve function name to address
  tracing: Fix ent_size in trace output
  perf symbols: Handle NULL dso in dso__name_len
  perf symbols: Do not include libgen.h
  perf tools: Fix bug in raw sample parsing
  perf tools: Fix display of first level of callchains
  perf tools: Switch module.h into export.h
  perf: Move mmap page data_head offset assertion out of header
  perf: Fix mmap_page capabilities and docs
  perf diff: Fix to work with new hists design
  perf tools: Fix modifier to be applied on correct events
  perf tools: Fix various casting issues for 32 bits
  perf tools: Simplify event_read_id exit path
  tracing: Fix ftrace stack trace entries
  tracing: Move the tracing_on/off() declarations into CONFIG_TRACING
  perf report: Add a simple GTK2-based 'perf report' browser
  ...

12 years agoMerge tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6
Linus Torvalds [Sat, 31 Mar 2012 20:32:30 +0000 (13:32 -0700)]
Merge tag 'parisc-misc' of git://git./linux/kernel/git/jejb/parisc-2.6

Pull PARISC misc updates from James Bottomley:
 "This is a couple of minor updates (fixing lws futex locking and
  removing some obsolete cpu_*_map calls)."

* tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
  [PARISC] remove references to cpu_*_map.
  [PARISC] futex: Use same lock set as lws calls

12 years agoMerge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi...
Linus Torvalds [Sat, 31 Mar 2012 20:31:23 +0000 (13:31 -0700)]
Merge tag 'scsi-misc' of git://git./linux/kernel/git/jejb/scsi-misc-2.6

Pull SCSI updates from James Bottomley:
 "This is primarily another round of driver updates (lpfc, bfa, fcoe,
  ipr) plus a new ufshcd driver.  There shouldn't be anything
  controversial in here (The final deletion of scsi proc_ops which
  caused some build breakage has been held over until the next merge
  window to give us more time to stabilise it).

  I'm afraid, with me moving continents at exactly the wrong time,
  anything submitted after the merge window opened has been held over to
  the next merge window."

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (63 commits)
  [SCSI] ipr: Driver version 2.5.3
  [SCSI] ipr: Increase alignment boundary of command blocks
  [SCSI] ipr: Increase max concurrent oustanding commands
  [SCSI] ipr: Remove unnecessary memory barriers
  [SCSI] ipr: Remove unnecessary interrupt clearing on new adapters
  [SCSI] ipr: Fix target id allocation re-use problem
  [SCSI] atp870u, mpt2sas, qla4xxx use pci_dev->revision
  [SCSI] fcoe: Drop the rtnl_mutex before calling fcoe_ctlr_link_up
  [SCSI] bfa: Update the driver version to 3.0.23.0
  [SCSI] bfa: BSG and User interface fixes.
  [SCSI] bfa: Fix to avoid vport delete hang on request queue full scenario.
  [SCSI] bfa: Move service parameter programming logic into firmware.
  [SCSI] bfa: Revised Fabric Assigned Address(FAA) feature implementation.
  [SCSI] bfa: Flash controller IOC pll init fixes.
  [SCSI] bfa: Serialize the IOC hw semaphore unlock logic.
  [SCSI] bfa: Modify ISR to process pending completions
  [SCSI] bfa: Add fc host issue lip support
  [SCSI] mpt2sas: remove extraneous sas_log_info messages
  [SCSI] libfc: fcoe_transport_create fails in single-CPU environment
  [SCSI] fcoe: reduce contention for fcoe_rx_list lock [v2]
  ...

12 years agovfs: fix out-of-date dentry_unhash() comment
J. Bruce Fields [Wed, 15 Feb 2012 16:48:40 +0000 (11:48 -0500)]
vfs: fix out-of-date dentry_unhash() comment

64252c75a2196a0cf1e0d3777143ecfe0e3ae650 "vfs: remove dget() from
dentry_unhash()" changed the implementation but not the comment.

Cc: Sage Weil <sage@newdream.net>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: split __lookup_hash
Miklos Szeredi [Mon, 26 Mar 2012 10:54:24 +0000 (12:54 +0200)]
vfs: split __lookup_hash

Split __lookup_hash into two component functions:

 lookup_dcache - tries cached lookup, returns whether real lookup is needed
 lookup_real - calls i_op->lookup

This eliminates code duplication between d_alloc_and_lookup() and
d_inode_lookup().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - take __lookup_hash()-calling case out of line.
Al Viro [Fri, 30 Mar 2012 18:48:04 +0000 (14:48 -0400)]
untangling do_lookup() - take __lookup_hash()-calling case out of line.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - switch to calling __lookup_hash()
Al Viro [Fri, 30 Mar 2012 18:41:51 +0000 (14:41 -0400)]
untangling do_lookup() - switch to calling __lookup_hash()

now we have __lookup_hash() open-coded if !dentry case;
just call the damn thing instead...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - merge d_alloc_and_lookup() callers
Al Viro [Fri, 30 Mar 2012 18:39:15 +0000 (14:39 -0400)]
untangling do_lookup() - merge d_alloc_and_lookup() callers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - merge failure exits in !dentry case
Al Viro [Fri, 30 Mar 2012 18:37:42 +0000 (14:37 -0400)]
untangling do_lookup() - merge failure exits in !dentry case

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - massage !dentry case towards __lookup_hash()
Al Viro [Fri, 30 Mar 2012 18:34:00 +0000 (14:34 -0400)]
untangling do_lookup() - massage !dentry case towards __lookup_hash()

Reorder if-else cases for starters...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - get rid of need_reval in !dentry case
Al Viro [Fri, 30 Mar 2012 18:18:50 +0000 (14:18 -0400)]
untangling do_lookup() - get rid of need_reval in !dentry case

Everything arriving into if (!dentry) will have need_reval = 1.
Indeed, the only way to get there with need_reval reset to 0 would
be via
if (unlikely(d_need_lookup(dentry)))
goto unlazy;
if (unlikely(dentry->d_flags & DCACHE_OP_REVALIDATE)) {
status = d_revalidate(dentry, nd);
if (unlikely(status <= 0)) {
if (status != -ECHILD)
need_reval = 0;
goto unlazy;
...
unlazy:
/* no assignments to dentry */
if (dentry && unlikely(d_need_lookup(dentry))) {
dput(dentry);
dentry = NULL;
}
and if d_need_lookup() had already been false the first time around, it
will remain false on the second call as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - eliminate a loop.
Al Viro [Fri, 30 Mar 2012 18:13:15 +0000 (14:13 -0400)]
untangling do_lookup() - eliminate a loop.

d_lookup() *will* fail after successful d_invalidate(), if we are
holding i_mutex all along.  IOW, we don't need to jump back to
l: - we know what path will be taken there and can do that (i.e.
d_alloc_and_lookup()) directly.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - expand the area under ->i_mutex
Al Viro [Fri, 30 Mar 2012 18:08:28 +0000 (14:08 -0400)]
untangling do_lookup() - expand the area under ->i_mutex

keep holding ->i_mutex over revalidation parts

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agountangling do_lookup() - isolate !dentry stuff from the rest of it.
Al Viro [Fri, 30 Mar 2012 18:04:16 +0000 (14:04 -0400)]
untangling do_lookup() - isolate !dentry stuff from the rest of it.

Duplicate the revalidation-related parts into if (!dentry) branch.
Next step will be to pull them under i_mutex.

This and the next 8 commits are more or less a splitup of patch
by Miklos; folks, when you are working with something that convoluted,
carve your patches up into easily reviewed steps, especially when
a lot of codepaths involved are rarely hit...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: move MAY_EXEC check from __lookup_hash()
Miklos Szeredi [Mon, 26 Mar 2012 10:54:21 +0000 (12:54 +0200)]
vfs: move MAY_EXEC check from __lookup_hash()

The only caller of __lookup_hash() that needs the exec permission check on
parent is lookup_one_len().

All lookup_hash() callers already checked permission in LOOKUP_PARENT walk.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: don't revalidate just looked up dentry
Miklos Szeredi [Mon, 26 Mar 2012 10:54:20 +0000 (12:54 +0200)]
vfs: don't revalidate just looked up dentry

__lookup_hash() calls ->lookup() if the dentry needs lookup and on success
revalidates the dentry (all under dir->i_mutex).

While this is harmless it doesn't make a lot of sense.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agovfs: fix d_need_lookup/d_revalidate order in do_lookup
Miklos Szeredi [Mon, 26 Mar 2012 10:54:19 +0000 (12:54 +0200)]
vfs: fix d_need_lookup/d_revalidate order in do_lookup

Doing revalidate on a dentry which has not yet been looked up makes no sense.

Move the d_need_lookup() check before d_revalidate().

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoext3: move headers to fs/ext3/
Al Viro [Fri, 30 Mar 2012 02:30:07 +0000 (22:30 -0400)]
ext3: move headers to fs/ext3/

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agomigrate ext2_fs.h guts to fs/ext2/ext2.h
Al Viro [Fri, 23 Mar 2012 20:45:51 +0000 (16:45 -0400)]
migrate ext2_fs.h guts to fs/ext2/ext2.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agonew helper: ext2_image_size()
Al Viro [Fri, 23 Mar 2012 20:36:45 +0000 (16:36 -0400)]
new helper: ext2_image_size()

... implemented that way since the next commit will leave it
almost alone in ext2_fs.h - most of the file (including
struct ext2_super_block) is going to move to fs/ext2/ext2.h.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoget rid of pointless includes of ext2_fs.h
Al Viro [Fri, 23 Mar 2012 20:04:05 +0000 (16:04 -0400)]
get rid of pointless includes of ext2_fs.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoext2: No longer export ext2_fs.h to user space
Thierry Reding [Fri, 23 Mar 2012 09:27:36 +0000 (10:27 +0100)]
ext2: No longer export ext2_fs.h to user space

Since the on-disk format has been stable for quite some time, users
should either use the headers provided by libext2fs or keep a private
copy of this header. For the full discussion, see this thread:

https://lkml.org/lkml/2012/3/21/516

While at it, this commit removes all __KERNEL__ guards, which are now
unnecessary.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jan Kara <jack@suse.cz>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: Andreas Dilger <aedilger@gmail.com>
Cc: linux-ext4@vger.kernel.org
12 years agomtdchar: kill persistently held vfsmount
Al Viro [Fri, 23 Mar 2012 17:47:52 +0000 (13:47 -0400)]
mtdchar: kill persistently held vfsmount

... and mtdchar_notifier along with it; just have ->drop_inode() that
will unconditionally get evict them instead of dances on mtd device
removal and use simple_pin_fs() instead of kern_mount()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agopstore: trim pstore_get_inode()
Al Viro [Thu, 22 Mar 2012 16:26:35 +0000 (12:26 -0400)]
pstore: trim pstore_get_inode()

move mode-dependent parts to callers, kill unused arguments

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoaio: take final put_ioctx() into callers of io_destroy()
Al Viro [Tue, 20 Mar 2012 20:27:57 +0000 (16:27 -0400)]
aio: take final put_ioctx() into callers of io_destroy()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoaio: merge aio_cancel_all() with wait_for_all_aios()
Al Viro [Tue, 20 Mar 2012 20:26:24 +0000 (16:26 -0400)]
aio: merge aio_cancel_all() with wait_for_all_aios()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoselinuxfs: merge dentry allocation into sel_make_dir()
Al Viro [Mon, 19 Mar 2012 00:36:59 +0000 (20:36 -0400)]
selinuxfs: merge dentry allocation into sel_make_dir()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agoASPM: Fix pcie devices with non-pcie children
Matthew Garrett [Tue, 27 Mar 2012 14:17:41 +0000 (10:17 -0400)]
ASPM: Fix pcie devices with non-pcie children

Since 3.2.12 and 3.3, some systems are failing to boot with a BUG_ON.
Some other systems using the pata_jmicron driver fail to boot because no
disks are detected.  Passing pcie_aspm=force on the kernel command line
works around it.

The cause: commit 4949be16822e ("PCI: ignore pre-1.1 ASPM quirking when
ASPM is disabled") changed the behaviour of pcie_aspm_sanity_check() to
always return 0 if aspm is disabled, in order to avoid cases where we
changed ASPM state on pre-PCIe 1.1 devices.

This skipped the secondary function of pcie_aspm_sanity_check which was
to avoid us enabling ASPM on devices that had non-PCIe children, causing
trouble later on.  Move the aspm_disabled check so we continue to honour
that scenario.

Addresses https://bugzilla.kernel.org/show_bug.cgi?id=42979 and
          http://bugs.debian.org/665420

Reported-by: Romain Francoise <romain@orebokech.com> # kernel panic
Reported-by: Chris Holland <bandidoirlandes@gmail.com> # disk detection trouble
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: stable@vger.kernel.org
Tested-by: Hatem Masmoudi <hatem.masmoudi@gmail.com> # Dell Latitude E5520
Tested-by: janek <jan0x6c@gmail.com> # pata_jmicron with JMB362/JMB363
[jn: with more symptoms in log message]
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoselinux: inline avc_audit() and avc_has_perm_noaudit() into caller
Linus Torvalds [Sat, 31 Mar 2012 18:12:57 +0000 (11:12 -0700)]
selinux: inline avc_audit() and avc_has_perm_noaudit() into caller

Now that all the slow-path code is gone from these functions, we can
inline them into the main caller - avc_has_perm_flags().

Now the compiler can see that 'avc' is allocated on the stack for this
case, which helps register pressure a bit.  It also actually shrinks the
total stack frame, because the stack frame that avc_has_perm_flags()
always needed (for that 'avc' allocation) is now sufficient for the
inlined functions too.

Inlining isn't bad - but mindless inlining of cold code (see the
previous commit) is.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoselinux: don't inline slow-path code into avc_has_perm_noaudit()
Linus Torvalds [Sat, 31 Mar 2012 17:58:08 +0000 (10:58 -0700)]
selinux: don't inline slow-path code into avc_has_perm_noaudit()

The selinux AVC paths remain some of the hottest (and deepest) codepaths
at filename lookup time, and we make it worse by having the slow path
cases take up I$ and stack space even when they don't trigger.  Gcc
tends to always want to inline functions that are just called once -
never mind that this might make for slower and worse code in the caller.

So this tries to improve on it a bit by making the slow-path cases
explicitly separate functions that are marked noinline, causing gcc to
at least no longer allocate stack space for them unless they are
actually called.  It also seems to help register allocation a tiny bit,
since gcc now doesn't take the slow case code into account.

Uninlining the slow path may also allow us to inline the remaining hot
path into the one caller that actually matters: avc_has_perm_flags().
I'll have to look at that separately, but both avc_audit() and
avc_has_perm_noaudit() are now small and lean enough that inlining them
may make sense.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agosched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq()
Srivatsa S. Bhat [Fri, 30 Mar 2012 14:10:28 +0000 (19:40 +0530)]
sched: Fix incorrect usage of for_each_cpu_mask() in select_fallback_rq()

The function for_each_cpu_mask() expects a *pointer* to struct
cpumask as its second argument, whereas select_fallback_rq()
passes the value itself.

And moreover, for_each_cpu_mask() has been marked as obselete
in include/linux/cpumask.h. So move to the more appropriate
for_each_cpu() variant.

Reported-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Dave Jones <davej@redhat.com>
Cc: Liu Chuansheng <chuansheng.liu@intel.com>
Cc: vapier@gentoo.org
Cc: rusty@rustcorp.com.au
Link: http://lkml.kernel.org/r/4F75BED4.9050005@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
12 years agoMerge branch 'perf/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/acme...
Ingo Molnar [Sat, 31 Mar 2012 07:27:41 +0000 (09:27 +0200)]
Merge branch 'perf/urgent' of git://git./linux/kernel/git/acme/linux into perf/urgent

12 years agovirtio-pci: switch to PM ops macro to initialise PM functions
Amit Shah [Thu, 29 Mar 2012 07:28:05 +0000 (12:58 +0530)]
virtio-pci: switch to PM ops macro to initialise PM functions

Use the SET_SYSTEM_SLEEP_PM_OPS macro to initialise the suspend/resume
functions in the new PM API.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
12 years agovirtio-pci: S3 support
Amit Shah [Thu, 29 Mar 2012 07:21:41 +0000 (12:51 +0530)]
virtio-pci: S3 support

There's no difference in supporting S3 and S4 for virtio devices: the
vqs have to be re-created as the device has to be assumed to be reset at
restore-time.  Since S4 already handles this situation, we can directly
use the same code and callbacks for S3 support.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
12 years agovirtio-pci: drop restore_common()
Amit Shah [Thu, 29 Mar 2012 07:24:43 +0000 (12:54 +0530)]
virtio-pci: drop restore_common()

restore_common() was shared between restore and thaw callbacks.  With
thaw gone, we don't need restore_common() anymore.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
12 years agovirtio: drop thaw PM operation
Amit Shah [Thu, 29 Mar 2012 07:20:20 +0000 (12:50 +0530)]
virtio: drop thaw PM operation

The thaw operation was used by the balloon driver, but after the last
commit there's no reason to have separate thaw and restore callbacks.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
12 years agovirtio: balloon: Allow stats update after restore from S4
Amit Shah [Thu, 29 Mar 2012 07:18:19 +0000 (12:48 +0530)]
virtio: balloon: Allow stats update after restore from S4

There's no reason stats update after restore can't work.  If a host
requested for stats, and before servicing the request, the guest entered
S4, upon restore, the stats request can still be processed and sent off
to the host.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Sat, 31 Mar 2012 01:40:33 +0000 (18:40 -0700)]
Merge git://git./linux/kernel/git/davem/sparc

Pull Sam Ravnborg's sparc32 build fixes from David Miller.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc32: fix fallout from system.h removal

12 years agosparc32: fix fallout from system.h removal
Sam Ravnborg [Fri, 30 Mar 2012 13:53:50 +0000 (15:53 +0200)]
sparc32: fix fallout from system.h removal

Build failures for the typical configs I use

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Sat, 31 Mar 2012 01:15:43 +0000 (18:15 -0700)]
Merge branch 'kbuild' of git://git./linux/kernel/git/mmarek/kbuild

Pull kbuild changes from Michal Marek:
 - Unification of cmd_uimage among archs that use it
 - make headers_check tries harder before reporting a missing
   <linux/types.h> include
 - kbuild portability fix for shells that do not support echo -e
 - make clean descends into samples/
 - setlocalversion grep fix
 - modpost typo fix
 - dtc warnings fix

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  setlocalversion: Use "grep -q" instead of piping output to "read dummy"
  modpost: fix ALL_INIT_DATA_SECTIONS
  Kbuild: centralize MKIMAGE and cmd_uimage definitions
  headers_check: recursively search for linux/types.h inclusion
  scripts/Kbuild.include: Fix portability problem of "echo -e"
  scripts: dtc: fix compile warnings
  kbuild: clean up samples directory
  kbuild: disable -Wmissing-field-initializers for W=1

12 years agoMerge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Sat, 31 Mar 2012 01:14:05 +0000 (18:14 -0700)]
Merge branch 'misc' of git://git./linux/kernel/git/mmarek/kbuild

Pull non-critical part of kbuild from Michal Marek:
 - New semantic patches, make coccicheck M= fix
 - make gtags speedup
 - make tags/TAGS always removes struct forward declarations
 - make deb-pkg fixes (some patches are still pending, I know)
 - scripts/patch-kernel fix from the last user of this script ;)

* 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts/patch-kernel: digest kernel.org hosted .xz patches
  scripts/coccinelle/api/ptr_ret.cocci: semantic patch for ptr_err
  scripts: refactor remove structure forward declarations
  kbuild: incremental tags update for GNU Global
  coccinelle: semantic patch for bool issues
  coccinelle: semantic patch to check for PTR_ERR after reassignment
  coccinelle: semantic patch converting 0 test to null test
  coccinelle: semantic patch for missing iounmap
  coccinelle: semantic patch for missing clk_put
  kbuild: Fix out-of-tree build for 'make deb-pkg'
  kbuild: Only build linux-image package for UML
  kbuild: Fix link to headers in 'make deb-pkg'
  coccicheck: change handling of C={1,2} when M= is set

12 years agoMerge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Sat, 31 Mar 2012 01:13:17 +0000 (18:13 -0700)]
Merge branch 'kconfig' of git://git./linux/kernel/git/mmarek/kbuild

Pull kconfig bits from Michal Marek:
 "There is one fix for make oldconfig by Arnaud and updates to the
  merge_config.sh tool."

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  merge_config.sh: Add option to display redundant configs
  merge_config.sh: Set execute bit
  merge_config.sh: Use the first file as the initial config
  kconfig: fix new choices being skipped upon config update

12 years agoMerge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 31 Mar 2012 01:08:05 +0000 (18:08 -0700)]
Merge branch 'irq-core-for-linus' of git://git./linux/kernel/git/tip/tip

Pull genirq updates from Thomas Gleixner.

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq: Adjust irq thread affinity on IRQ_SET_MASK_OK_NOCOPY return value
  genirq: Respect NUMA node affinity in setup_irq_irq affinity()
  genirq: Get rid of unneeded force parameter in irq_finalize_oneshot()
  genirq: Minor readablity improvement in irq_wake_thread()

12 years agoMerge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 31 Mar 2012 01:07:13 +0000 (18:07 -0700)]
Merge branch 'core-locking-for-linus' of git://git./linux/kernel/git/tip/tip

Pull core locking updates from Thomas Gleixner.

* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Mark get_robust_list as deprecated
  futex: Do not leak robust list to unprivileged process

12 years agoMerge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6
Linus Torvalds [Sat, 31 Mar 2012 00:31:56 +0000 (17:31 -0700)]
Merge tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6

Pull MTD changes from David Woodhouse:
 - Artem's cleanup of the MTD API continues apace.
 - Fixes and improvements for ST FSMC and SuperH FLCTL NAND, amongst
   others.
 - More work on DiskOnChip G3, new driver for DiskOnChip G4.
 - Clean up debug/warning printks in JFFS2 to use pr_<level>.

Fix up various trivial conflicts, largely due to changes in calling
conventions for things like dmaengine_prep_slave_sg() (new inline
wrapper to hide new parameter, clashing with rewrite of previously last
parameter that used to be an 'append' flag, and is now a bitmap of
'unsigned long flags').

(Also some header file fallout - like so many merges this merge window -
and silly conflicts with sparse fixes)

* tag 'for-linus-3.4' of git://git.infradead.org/mtd-2.6: (120 commits)
  mtd: docg3 add protection against concurrency
  mtd: docg3 refactor cascade floors structure
  mtd: docg3 increase write/erase timeout
  mtd: docg3 fix inbound calculations
  mtd: nand: gpmi: fix function annotations
  mtd: phram: fix section mismatch for phram_setup
  mtd: unify initialization of erase_info->fail_addr
  mtd: support ONFI multi lun NAND
  mtd: sm_ftl: fix typo in major number.
  mtd: add device-tree support to spear_smi
  mtd: spear_smi: Remove default partition information from driver
  mtd: Add device-tree support to fsmc_nand
  mtd: fix section mismatch for doc_probe_device
  mtd: nand/fsmc: Remove sparse warnings and errors
  mtd: nand/fsmc: Add DMA support
  mtd: nand/fsmc: Access the NAND device word by word whenever possible
  mtd: nand/fsmc: Use dev_err to report error scenario
  mtd: nand/fsmc: Use devm routines
  mtd: nand/fsmc: Modify fsmc driver to accept nand timing parameters via platform
  mtd: fsmc_nand: add pm callbacks to support hibernation
  ...

12 years agoMerge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
Linus Torvalds [Sat, 31 Mar 2012 00:00:34 +0000 (17:00 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc

Pull a few more ARM platform fixes from Olof Johansson:
 "Apologies for back-to-back fixes pull requests, but one of the patches
  below are the kind we'll see posted over and over if we don't send it
  in.  I hadn't done the full sanity-check of defconfig builds by the
  time I sent up the other fixes yesterday or I would have included it
  then.

  Two patches, one dealing with the system.h fallout, the other is a
  missing linux/bug.h in a place where ARRAY_SIZE() is used."

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: clps711x: fix missing include file
  ARM: fix builds due to missing <asm/system_misc.h> includes

12 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Linus Torvalds [Fri, 30 Mar 2012 23:45:38 +0000 (16:45 -0700)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux

Pull ACPI & Power Management changes from Len Brown:
 - ACPI 5.0 after-ripples, ACPICA/Linux divergence cleanup
 - cpuidle evolving, more ARM use
 - thermal sub-system evolving, ditto
 - assorted other PM bits

Fix up conflicts in various cpuidle implementations due to ARM cpuidle
cleanups (ARM at91 self-refresh and cpu idle code rewritten into
"standby" in asm conflicting with the consolidation of cpuidle time
keeping), trivial SH include file context conflict and RCU tracing fixes
in generic code.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (77 commits)
  ACPI throttling: fix endian bug in acpi_read_throttling_status()
  Disable MCP limit exceeded messages from Intel IPS driver
  ACPI video: Don't start video device until its associated input device has been allocated
  ACPI video: Harden video bus adding.
  ACPI: Add support for exposing BGRT data
  ACPI: export acpi_kobj
  ACPI: Fix logic for removing mappings in 'acpi_unmap'
  CPER failed to handle generic error records with multiple sections
  ACPI: Clean redundant codes in scan.c
  ACPI: Fix unprotected smp_processor_id() in acpi_processor_cst_has_changed()
  ACPI: consistently use should_use_kmap()
  PNPACPI: Fix device ref leaking in acpi_pnp_match
  ACPI: Fix use-after-free in acpi_map_lsapic
  ACPI: processor_driver: add missing kfree
  ACPI, APEI: Fix incorrect APEI register bit width check and usage
  Update documentation for parameter *notrigger* in einj.txt
  ACPI, APEI, EINJ, new parameter to control trigger action
  ACPI, APEI, EINJ, limit the range of einj_param
  ACPI, APEI, Fix ERST header length check
  cpuidle: power_usage should be declared signed integer
  ...

12 years agoMerge git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 30 Mar 2012 23:24:38 +0000 (16:24 -0700)]
Merge git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Steve French.

* git://git.samba.org/sfrench/cifs-2.6:
  [CIFS] Update CIFS version number to 1.77
  CIFS: Add missed forcemand mount option
  [CIFS] Fix trivial sparse warning with asyn i/o patch
  cifs: handle "sloppy" option appropriately
  cifs: use standard token parser for mount options
  cifs: remove /proc/fs/cifs/OplockEnabled
  cifs: convert cifs_iovec_write to use async writes
  cifs: call cifs_update_eof with i_lock held
  cifs: abstract out function to marshal up the iovec array for async writes
  cifs: fix up get_numpages
  cifs: make cifsFileInfo_get return the cifsFileInfo pointer
  cifs: fix allocation in cifs_write_allocate_pages
  cifs: allow caller to specify completion op when allocating writedata
  cifs: add pid field to cifs_writedata
  cifs: add new cifsiod_wq workqueue
  CIFS: Change mid_q_entry structure fields
  CIFS: Expand CurrentMid field
  CIFS: Separate protocol-specific code from cifs_readv_receive code
  CIFS: Separate protocol-specific code from demultiplex code
  CIFS: Separate protocol-specific code from transport routines

12 years agoMerge tag 'for-v3.4-rc1' of git://git.infradead.org/battery-2.6
Linus Torvalds [Fri, 30 Mar 2012 23:09:02 +0000 (16:09 -0700)]
Merge tag 'for-v3.4-rc1' of git://git.infradead.org/battery-2.6

Pull battery updates from Anton Vorontsov:
 "Various small bugfixes and enhancements, plus two new drivers:
   - A quite complex ab8500 charger driver, submitted by Arun Murthy @
     ST-Ericsson;
   - Summit Microelectronics SMB347 Battery Charger, submitted by Bruce
     E Robertson and Alan Cox @ Intel.

  And that's all."

* tag 'for-v3.4-rc1' of git://git.infradead.org/battery-2.6: (36 commits)
  max17042_battery: Clean up interrupt handling
  Revert "max8998_charger: Include linux/module.h just once"
  ab8500_fg: Fix some build warnings on x86_64
  max17042_battery: Fix CHARGE_FULL representation.
  max8998_charger: Include linux/module.h just once
  power_supply: Convert i2c drivers to module_i2c_driver
  lp8727_charger: Add MODULE_DEVICE_TABLE
  charger-manager: Simplify charger_get_property(), get rid of a warning
  charger-manager: Clean up for better readability
  da9052-battery: Convert to use module_platform_driver
  da9052-battery: Fix a memory leak when unload the module
  da9052-battery: Add missing platform_set_drvdata
  ab8500: Turn unneeded global symbols into local ones
  ab8500_fg: Fix copy-paste error
  ab8500_fg: Get rid of 'struct battery_type'
  ab8500_fg: Get rid of 'struct v_to_cap'
  ab8500_btemp: Get rid of 'enum adc_therm'
  ab8500_charger: Convert to the new USB OTG calls
  ab8500-btemp: AB8500 battery temperature driver
  ab8500-fg: A8500 fuel gauge driver
  ...

12 years agoMerge branch 'dunlap' (Randy's Documentation patches)
Linus Torvalds [Fri, 30 Mar 2012 23:03:55 +0000 (16:03 -0700)]
Merge branch 'dunlap' (Randy's Documentation patches)

Merge Documentation fixes from Randy Dunlap.

Fixed up several small annoyances (bad changelogs and corrupted utf8
names), I need to try to convince people to do things right.

* emailed from Randy Dunlap <rdunlap@xenotime.net>:
  Documentation: fix typo in ABI/stable/sysfs-driver-usb-usbtmc
  Documentation: replace install commands with softdeps
  Documentation: remove references to /etc/modprobe.conf
  Documentation: input.txt: clarify mousedev 'cat' command syntax
  Documentation: CodingStyle: add inline assembly guidelines
  Documentation: sysrq: Crutcher Dunnavant is unavailable
  Documentation: mention scripts/diffconfig tool
  Documentation: remove 'mach' from dontdiff file

12 years agoDocumentation: fix typo in ABI/stable/sysfs-driver-usb-usbtmc
Rafal Kapela [Fri, 30 Mar 2012 20:37:26 +0000 (13:37 -0700)]
Documentation: fix typo in ABI/stable/sysfs-driver-usb-usbtmc

Fix "the the" in ABI/stable/sysfs-driver-usb-usbtmc

Signed-off-by: Rafal Kapela <raf.kapela@gmail.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoDocumentation: replace install commands with softdeps
Lucas De Marchi [Fri, 30 Mar 2012 20:37:20 +0000 (13:37 -0700)]
Documentation: replace install commands with softdeps

Install commands should not be used to specify soft dependencies among
modules. When loading modules it's much better to have a softdep that
modprobe knows what's being done than having to fork/exec another
instance of modprobe to load the other module.

By using a softdep user has also an option to remove the dependencies
when removing the module (and if its refcount dropped to 0)

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoDocumentation: remove references to /etc/modprobe.conf
Lucas De Marchi [Fri, 30 Mar 2012 20:37:16 +0000 (13:37 -0700)]
Documentation: remove references to /etc/modprobe.conf

Usage of /etc/modprobe.conf file was deprecated by module-init-tools and
is no longer parsed by new kmod tool. References to this file are
replaced in Documentation, comments and Kconfig according to the
context.

There are also some references to the old /etc/modules.conf from 2.4
kernels that are being removed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoDocumentation: input.txt: clarify mousedev 'cat' command syntax
Randy Dunlap [Fri, 30 Mar 2012 20:37:13 +0000 (13:37 -0700)]
Documentation: input.txt: clarify mousedev 'cat' command syntax

Clarify that the 'cat' command does not include the (c, 13, 32)
after it.

Reported-by: Dan Jidanni Jacobson <jidanni@jidanni.org>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoDocumentation: CodingStyle: add inline assembly guidelines
Josh Triplett [Fri, 30 Mar 2012 20:37:10 +0000 (13:37 -0700)]
Documentation: CodingStyle: add inline assembly guidelines

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoDocumentation: sysrq: Crutcher Dunnavant is unavailable
Randy Dunlap [Fri, 30 Mar 2012 20:37:06 +0000 (13:37 -0700)]
Documentation: sysrq: Crutcher Dunnavant is unavailable

Reported-by: Křištof Želechovski <giecrilj@stegny.2a.pl>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoDocumentation: mention scripts/diffconfig tool
Javi Merino [Fri, 30 Mar 2012 20:37:02 +0000 (13:37 -0700)]
Documentation: mention scripts/diffconfig tool

The kconfig documentation suggests using plain 'diff' to compare config
files and then adds "Yes, we need something better here".  Commit
a717417e7f96 ("kconfig: add diffconfig utility") added what that comment
was looking for.

Signed-off-by: Javi Merino <javi.merino@arm.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoDocumentation: remove 'mach' from dontdiff file
H Hartley Sweeten [Fri, 30 Mar 2012 20:36:58 +0000 (13:36 -0700)]
Documentation: remove 'mach' from dontdiff file

The mach entry in the dontdiff file causes all the
arch/arm/mach-*/include/mach directories to be skipped.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoARM: clps711x: fix missing include file
Olof Johansson [Fri, 30 Mar 2012 06:34:29 +0000 (23:34 -0700)]
ARM: clps711x: fix missing include file

linux/bug.h is needed due to an ARRAY_SIZE being used:

arch/arm/mach-clps711x/edb7211-mm.c: In function 'edb7211_map_io':
arch/arm/mach-clps711x/edb7211-mm.c:79:9: error: implicit declaration of function 'BUILD_BUG_ON_ZERO'

Signed-off-by: Olof Johansson <olof@lixom.net>
12 years agoARM: fix builds due to missing <asm/system_misc.h> includes
Olof Johansson [Fri, 30 Mar 2012 06:22:44 +0000 (23:22 -0700)]
ARM: fix builds due to missing <asm/system_misc.h> includes

This does a sweeping change fixing up all the missing system_misc.h and
system_info.h includes from the system.h split-up change. These were the
ones I came across when building all defconfigs in arch/arm/configs, there
might be more but they lack adequate build coverage to be easily caught.

I'm expecting to get a lot of these piecemeal by each maintainer, so we
might just as well do one sweeping change to get them all at once.

Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sascha Hauer <kernel@pengutronix.de>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
12 years agogenirq: Adjust irq thread affinity on IRQ_SET_MASK_OK_NOCOPY return value
Jiang Liu [Fri, 30 Mar 2012 15:11:33 +0000 (23:11 +0800)]
genirq: Adjust irq thread affinity on IRQ_SET_MASK_OK_NOCOPY return value

irq_move_masked_irq() checks the return code of
chip->irq_set_affinity() only for 0, but IRQ_SET_MASK_OK_NOCOPY is
also a valid return code, which is there to avoid a redundant copy of
the cpumask. But in case of IRQ_SET_MASK_OK_NOCOPY we not only avoid
the redundant copy, we also fail to adjust the thread affinity of an
eventually threaded interrupt handler.

Handle IRQ_SET_MASK_OK (==0) and IRQ_SET_MASK_OK_NOCOPY(==1) return
values correctly by checking the valid return values seperately.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: Keping Chen <chenkeping@huawei.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1333120296-13563-2-git-send-email-jiang.liu@huawei.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
12 years agoMerge branch 'tboot' into release
Len Brown [Fri, 30 Mar 2012 20:35:53 +0000 (16:35 -0400)]
Merge branch 'tboot' into release

Conflicts:
drivers/acpi/acpica/hwsleep.c

Text conflict between:

2feec47d4c5f80b05f1650f5a24865718978eea4
(ACPICA: ACPI 5: Support for new FADT SleepStatus, SleepControl registers)

which removed #include "actables.h"

and

09f98a825a821f7a3f1b162f9ed023f37213a63b
(x86, acpi, tboot: Have a ACPI os prepare sleep instead of calling tboot_sleep.)

which removed #include <linux/tboot.h>

The resolution is to remove them both.

Signed-off-by: Len Brown <len.brown@intel.com>
12 years agoMerge branch 'd3' into release
Len Brown [Fri, 30 Mar 2012 20:21:26 +0000 (16:21 -0400)]
Merge branch 'd3' into release

Conflicts:
drivers/acpi/sleep.c

This was a text conflict between
a2ef5c4fd44ce3922435139393b89f2cce47f576
(ACPI: Move module parameter gts and bfs to sleep.c)

which added #include <linux/module.h>

and

b24e5098853653554baf6ec975b9e855f3d6e5c0
(ACPI, PCI: Move acpi_dev_run_wake() to ACPI core)

which added #include <linux/pm_runtime.h>

The resolution was to take them both.

Signed-off-by: Len Brown <len.brown@intel.com>
12 years agoMerge branch 'apei' into release
Len Brown [Fri, 30 Mar 2012 20:12:23 +0000 (16:12 -0400)]
Merge branch 'apei' into release

Conflicts:
drivers/acpi/apei/apei-base.c

This was a conflict between

15afae604651d4e17652d2ffb56f5e36f991cfef
(CPI, APEI: Fix incorrect APEI register bit width check and usage)

and

653f4b538f66d37db560e0f56af08117136d29b7
(ACPICA: Expand OSL memory read/write interfaces to 64 bits)

The former changed a parameter in the call to acpi_os_read_memory64()
and the later replaced all calls to acpi_os_read_memory64()
with calls to acpi_os_read_memory().

Signed-off-by: Len Brown <len.brown@intel.com>
12 years agoMerge branches 'acpica', 'bgrt', 'bz-11533', 'cpuidle', 'ec', 'hotplug', 'misc',...
Len Brown [Fri, 30 Mar 2012 20:10:37 +0000 (16:10 -0400)]
Merge branches 'acpica', 'bgrt', 'bz-11533', 'cpuidle', 'ec', 'hotplug', 'misc', 'red-hat-bz-727865', 'thermal', 'throttling', 'turbostat' and 'video' into release

Signed-off-by: Len Brown <len.brown@intel.com>
12 years agoACPI throttling: fix endian bug in acpi_read_throttling_status()
Dan Carpenter [Wed, 7 Mar 2012 11:57:36 +0000 (14:57 +0300)]
ACPI throttling: fix endian bug in acpi_read_throttling_status()

Using a u64 here creates an endian bug.  We store a u32 number in the
top byte which is a larger number than intended on big endian systems.
There is no reason to use a 64 bit data type here, I guess it was just
an oversight.

I removed the initialization to zero as well.  It's needed with a u64
but with a u32, the variable gets initialized properly inside the call
to acpi_os_read_port().

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
12 years agoDisable MCP limit exceeded messages from Intel IPS driver
Andi Kleen [Mon, 6 Feb 2012 16:17:12 +0000 (08:17 -0800)]
Disable MCP limit exceeded messages from Intel IPS driver

On a system on the thermal limit these are quite noisy and flood the logs.
Better would be a counter anyways. But given that we don't even have
anything for normal throttling this doesn't seem to be urgent either.

Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
12 years agoACPI video: Don't start video device until its associated input device has been allocated
Igor Murzov [Fri, 30 Mar 2012 17:32:09 +0000 (21:32 +0400)]
ACPI video: Don't start video device until its associated input device has been allocated

Quoth Dmitry Torokhov:
In addition to bus notifier we do install device notifier explicitly
so it might fire up early. The easiest fox would be to move
acpi_video_bus_start_devices() after input_allocate_device() but
before input_register_device() - unregistered input devices can handle
input_event() calls just fine.

May fix crashes reported in:
https://bugzilla.kernel.org/show_bug.cgi?id=40672

Signed-off-by: Igor Murzov <e-mail@date.by>
Signed-off-by: Len Brown <len.brown@intel.com>