12 years agoat91: at91sam9g45 family: identify several chip versions
Nicolas Ferre [Mon, 21 Sep 2009 10:03:56 +0000 (12:03 +0200)]
at91: at91sam9g45 family: identify several chip versions

cpu_is_xxx() macros are identifying generic at91sam9g45 chip. This patch adds
the capacity to differentiate Engineering Samples and final lots through the
inclusion of  at91_cpu_fully_identify() and the related chip IDs with chip
version field preserved.

Signed-off-by: Nicolas Ferre <>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <>
Acked-by: Hans-Christian Egtvedt <>
12 years agoavr32: add two new at91 to cpu.h definition
Nicolas Ferre [Mon, 6 Jul 2009 10:15:12 +0000 (12:15 +0200)]
avr32: add two new at91 to cpu.h definition

Somme common drivers will need those at91 cpu_is_xxx() definitions. As
at91sam9g10 and at91sam9g45 are on the way to linus' tree, here is the patch
that adds those chips to cpu.h in AVR32 architecture.

Signed-off-by: Nicolas Ferre <>
Signed-off-by: Haavard Skinnemoen <>
12 years agoMerge branch 'pm-fixes' of git://
Linus Torvalds [Tue, 3 Nov 2009 15:52:57 +0000 (07:52 -0800)]
Merge branch 'pm-fixes' of git://git./linux/kernel/git/rafael/suspend-2.6

* 'pm-fixes' of git://
  PM: Remove some debug messages producing too much noise
  PM: Fix warning on suspend errors
  PM / Hibernate: Add newline to load_image() fail path
  PM / Hibernate: Fix error handling in save_image()
  PM / Hibernate: Fix blkdev refleaks
  PM / yenta: Split resume into early and late parts (rev. 4)

12 years agoCorrect nr_processes() when CPUs have been unplugged
Ian Campbell [Tue, 3 Nov 2009 10:11:14 +0000 (10:11 +0000)]
Correct nr_processes() when CPUs have been unplugged

nr_processes() returns the sum of the per cpu counter process_counts for
all online CPUs. This counter is incremented for the current CPU on
fork() and decremented for the current CPU on exit(). Since a process
does not necessarily fork and exit on the same CPU the process_count for
an individual CPU can be either positive or negative and effectively has
no meaning in isolation.

Therefore calculating the sum of process_counts over only the online
CPUs omits the processes which were started or stopped on any CPU which
has since been unplugged. Only the sum of process_counts across all
possible CPUs has meaning.

The only caller of nr_processes() is proc_root_getattr() which
calculates the number of links to /proc as
        stat->nlink = proc_root.nlink + nr_processes();

You don't have to be all that unlucky for the nr_processes() to return a
negative value leading to a negative number of links (or rather, an
apparently enormous number of links). If this happens then you can get
failures where things like "ls /proc" start to fail because they got an
-EOVERFLOW from some stat() call.

Example with some debugging inserted to show what goes on:
        # ps haux|wc -l
        nr_processes: CPU0:     90
        nr_processes: CPU1:     1030
        nr_processes: CPU2:     -900
        nr_processes: CPU3:     -136
        nr_processes: TOTAL:    84
        proc_root_getattr. nlink 12 + nr_processes() 84 = 96
        # echo 0 >/sys/devices/system/cpu/cpu1/online
        # ps haux|wc -l
        nr_processes: CPU0:     85
        nr_processes: CPU2:     -901
        nr_processes: CPU3:     -137
        nr_processes: TOTAL:    -953
        proc_root_getattr. nlink 12 + nr_processes() -953 = -941
        # stat /proc/
        nr_processes: CPU0:     84
        nr_processes: CPU2:     -901
        nr_processes: CPU3:     -137
        nr_processes: TOTAL:    -954
        proc_root_getattr. nlink 12 + nr_processes() -954 = -942
          File: `/proc/'
          Size: 0               Blocks: 0          IO Block: 1024   directory
        Device: 3h/3d   Inode: 1           Links: 4294966354
        Access: (0555/dr-xr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
        Access: 2009-11-03 09:06:55.000000000 +0000
        Modify: 2009-11-03 09:06:55.000000000 +0000
        Change: 2009-11-03 09:06:55.000000000 +0000

I'm not 100% convinced that the per_cpu regions remain valid for offline
CPUs, although my testing suggests that they do. If not then I think the
correct solution would be to aggregate the process_count for a given CPU
into a global base value in cpu_down().

This bug appears to pre-date the transition to git and it looks like it
may even have been present in linux-2.6.0-test7-bk3 since it looks like
the code Rusty patched in was already

Signed-off-by: Ian Campbell <>
Cc: Andrew Morton <>
Cc: Rusty Russell <>
Signed-off-by: Linus Torvalds <>
12 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Tue, 3 Nov 2009 15:46:17 +0000 (07:46 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://
  Input: gpio-keys - use IRQF_SHARED
  Input: winbond-cir - select LEDS_TRIGGERS
  Input: i8042 - try to get stable CTR value when initializing
  Input: atkbd - add a quirk for OQO 01+ multimedia keys

12 years agoMerge branch 'fixes-s3c-2632-rc5' of git://
Linus Torvalds [Tue, 3 Nov 2009 15:46:05 +0000 (07:46 -0800)]
Merge branch 'fixes-s3c-2632-rc5' of git://

* 'fixes-s3c-2632-rc5' of git://
  ARM: S3C2410: Fix sparse warnings in arch/arm/mach-s3c2410/gpio.c
  ARM: S3C2440: mini2440: Fix spare warnings
  ARM: S3C24XX: Fix warnings in arch/arm/plat-s3c24xx/gpio.c
  ARM: S3C2440: mini2440: Fix missing CONFIG_S3C_DEV_USB_HOST
  ARM: S3C24XX: arch/arm/plat-s3c24xx: Move dereference after NULL test
  ARM: S3C: Fix adc function exports
  ARM: S3C2410: Fix link if CONFIG_S3C2410_IOTIMING is not set
  ARM: S3C24XX: Introduce S3C2442B CPU
  ARM: S3C24XX: Define a macro to avoid compilation error
  ARM: S3C: Add info for supporting circular DMA buffers
  ARM: S3C64XX: Set rate of crystal mux
  ARM: S3C64XX: Fix S3C64XX_CLKDIV0_ARM_MASK value

12 years agoMerge branch 'i2c-fixes' of git://
Linus Torvalds [Tue, 3 Nov 2009 15:45:50 +0000 (07:45 -0800)]
Merge branch 'i2c-fixes' of git://

* 'i2c-fixes' of git://
  i2c-mpc: Do not generate STOP after read.
  i2c: imx: disable clock when it's possible to save power.
  i2c: imx: only imx1 needs disable delay
  i2c: imx: check busy bit when START/STOP

12 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Tue, 3 Nov 2009 15:45:22 +0000 (07:45 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ryusuke/nilfs2

* 'for-linus' of git://
  nilfs2: add zero-fill for new btree node buffers
  nilfs2: fix irregular checkpoint creation due to data flush
  nilfs2: fix dirty page accounting leak causing hang at write

12 years agoMerge git://
Linus Torvalds [Tue, 3 Nov 2009 15:44:01 +0000 (07:44 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git:// (21 commits)
  mac80211: check interface is down before type change
  cfg80211: fix NULL ptr deref
  libertas if_usb: Fix crash on 64-bit machines
  mac80211: fix reason code output endianness
  mac80211: fix addba timer
  ath9k: fix misplaced semicolon on rate control
  b43: Fix DMA TX bounce buffer copying
  mac80211: fix BSS leak
  rt73usb.c : more ids
  ipw2200: fix oops on missing firmware
  gre: Fix dev_addr clobbering for gretap
  sky2: set carrier off in probe
  net: fix sk_forward_alloc corruption
  pcnet_cs: add cis of PreMax PE-200 ethernet pcmcia card
  r8169: Fix card drop incoming VLAN tagged MTU byte large jumbo frames
  ibmtr: possible Read buffer overflow?
  net: Fix RPF to work with policy routing
  net: fix kmemcheck annotations
  e1000e: rework disable K1 at 1000Mbps for 82577/82578
  e1000e: config PHY via software after resets

12 years agoPM: Remove some debug messages producing too much noise
Pavel Machek [Wed, 28 Oct 2009 21:56:10 +0000 (22:56 +0100)]
PM: Remove some debug messages producing too much noise

pm_runtime_idle() is somewhat noisy. Remove debug prints.

Signed-off-by: Pavel Machek <>
Signed-off-by: Rafael J. Wysocki <>
12 years agoPM: Fix warning on suspend errors
Romit Dasgupta [Wed, 28 Oct 2009 21:56:02 +0000 (22:56 +0100)]
PM: Fix warning on suspend errors

Fixes the point where we need to complete the power transition when
device suspend fails, so that we don't print warnings about devices
added to the device hierarchy after a failing suspend.

[rjw: Modified changelog.]

Signed-off-by: Romit Dasgupta <>
Signed-off-by: Rafael J. Wysocki <>
12 years agoPM / Hibernate: Add newline to load_image() fail path
Jiri Slaby [Wed, 28 Oct 2009 21:55:42 +0000 (22:55 +0100)]
PM / Hibernate: Add newline to load_image() fail path

Finish a line by \n when load_image fails in the middle of loading.

Signed-off-by: Jiri Slaby <>
Acked-by: Pavel Machek <>
Signed-off-by: Rafael J. Wysocki <>
12 years agoPM / Hibernate: Fix error handling in save_image()
Jiri Slaby [Wed, 28 Oct 2009 21:55:33 +0000 (22:55 +0100)]
PM / Hibernate: Fix error handling in save_image()

There are too many retval variables in save_image(). Thus error return
value from snapshot_read_next() may be ignored and only part of the
snapshot (successfully) written.

Remove 'error' variable, invert the condition in the do-while loop
and convert the loop to use only 'ret' variable.

Switch the rest of the function to consider only 'ret'.

Also make sure we end printed line by \n if an error occurs.

Signed-off-by: Jiri Slaby <>
Acked-by: Pavel Machek <>
Signed-off-by: Rafael J. Wysocki <>
12 years agoPM / Hibernate: Fix blkdev refleaks
Jiri Slaby [Wed, 7 Oct 2009 20:37:35 +0000 (22:37 +0200)]
PM / Hibernate: Fix blkdev refleaks

While cruising through the swsusp code I found few blkdev reference
leaks of resume_bdev.

swsusp_read: remove blkdev_put altogether. Some fail paths do
             not do that.
swsusp_check: make sure we always put a reference on fail paths
software_resume: all fail paths between swsusp_check and swsusp_read
                 omit swsusp_close. Add it in those cases. And since
                 swsusp_read doesn't drop the reference anymore, do
                 it here unconditionally.

[rjw: Fixed a small coding style issue.]

Signed-off-by: Jiri Slaby <>
Signed-off-by: Rafael J. Wysocki <>
12 years agoPM / yenta: Split resume into early and late parts (rev. 4)
Rafael J. Wysocki [Tue, 3 Nov 2009 09:54:58 +0000 (10:54 +0100)]
PM / yenta: Split resume into early and late parts (rev. 4)

Commit 0c570cdeb8fdfcb354a3e9cd81bfc6a09c19de0c
(PM / yenta: Fix cardbus suspend/resume regression) caused resume to
fail on systems with two CardBus bridges.  While the exact nature
of the failure is not known at the moment, it can be worked around by
splitting the yenta resume into an early part, executed during the
early phase of resume, that will only resume the socket and power it
up if there was a card in it during suspend, and a late part,
executed during "regular" resume, that will carry out all of the
remaining yenta resume operations.

Fixes, which is a
listed regression from 2.6.31.

Signed-off-by: Rafael J. Wysocki <>
Acked-by: Dominik Brodowski <>
Reported-by: Stephen J. Gowdy <>
Tested-by: Jose Marino <>
12 years agoInput: gpio-keys - use IRQF_SHARED
Dmitry Eremin-Solenikov [Tue, 3 Nov 2009 06:04:18 +0000 (22:04 -0800)]
Input: gpio-keys - use IRQF_SHARED

There is nothing that disallows gpio-keys to share it's IRQ line
w/ other drivers. Make it use IRQF_SHARED in request_irq().

An example of other driver with which I'd like to share IRQ line
for GPIO buttons is ledtrig-gpio.

Signed-off-by: Dmitry Eremin-Solenikov <>
Signed-off-by: Dmitry Torokhov <>
12 years agoInput: winbond-cir - select LEDS_TRIGGERS
David Härdeman [Tue, 3 Nov 2009 05:57:41 +0000 (21:57 -0800)]
Input: winbond-cir - select LEDS_TRIGGERS

drivers/input/misc/winbond-cir.c depends on LEDS_TRIGGERS so
add an appropriate select to drivers/input/misc/Kconfig

Signed-off-by: David Härdeman <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Dmitry Torokhov <>
12 years agoInput: i8042 - try to get stable CTR value when initializing
Dmitry Torokhov [Tue, 3 Nov 2009 05:57:40 +0000 (21:57 -0800)]
Input: i8042 - try to get stable CTR value when initializing

If user presses keys while i8042 is being initialized there is a chance
that keyboard data will be mistaken for results of Read Control Register
command causing futher troubles. Work around this issue by reading CTR
several times and stop when we get matching results.

Reported-and-tested-by: Dave Young <>
Signed-off-by: Dmitry Torokhov <>
12 years agoMerge commit 'v2.6.32-rc5' into for-linus
Dmitry Torokhov [Tue, 3 Nov 2009 06:10:07 +0000 (22:10 -0800)]
Merge commit 'v2.6.32-rc5' into for-linus

12 years agonilfs2: add zero-fill for new btree node buffers
Ryusuke Konishi [Sun, 13 Sep 2009 16:20:35 +0000 (01:20 +0900)]
nilfs2: add zero-fill for new btree node buffers

Adds missing initialization of newly allocated b-tree node buffers.
This avoids garbage data to be mixed in b-tree node blocks.

Signed-off-by: Ryusuke Konishi <>
12 years agonilfs2: fix irregular checkpoint creation due to data flush
Ryusuke Konishi [Mon, 2 Nov 2009 06:08:13 +0000 (15:08 +0900)]
nilfs2: fix irregular checkpoint creation due to data flush

When nilfs flushes out dirty data to reduce memory pressure, creation
of checkpoints is wrongly postponed.  This bug causes irregular
checkpoint creation especially in small footprint systems.

To correct this issue, a timer for the checkpoint creation has to be
continued if a log writer does not create a checkpoint.

This will do the correction.

Signed-off-by: Ryusuke Konishi <>
12 years agonilfs2: fix dirty page accounting leak causing hang at write
Ryusuke Konishi [Mon, 2 Nov 2009 15:25:53 +0000 (00:25 +0900)]
nilfs2: fix dirty page accounting leak causing hang at write

Bruno Prémont and Dunphy, Bill noticed me that NILFS will certainly
hang on ARM-based targets.

I found this was caused by an underflow of dirty pages counter.  A
b-tree cache routine was marking page dirty without adjusting page
account information.

This fixes the dirty page accounting leak and resolves the hang on
arm-based targets.

Reported-by: Bruno Prémont <>
Reported-by: Dunphy, Bill <>
Signed-off-by: Ryusuke Konishi <>
Tested-by: Bruno Prémont <>
Cc: stable <>
12 years agoMerge branch 'master' of git://
David S. Miller [Tue, 3 Nov 2009 03:18:50 +0000 (19:18 -0800)]
Merge branch 'master' of git://git./linux/kernel/git/linville/wireless-2.6

12 years agoi2c-mpc: Do not generate STOP after read.
Joakim Tjernlund [Tue, 13 Oct 2009 08:12:03 +0000 (10:12 +0200)]
i2c-mpc: Do not generate STOP after read.

The driver always ends a read with a STOP condition which
breaks subsequent I2C reads/writes in the same transaction as
these expect to do a repeated START(ReSTART).

This will also help I2C multimaster as the bus will not be released
after the first read, but when the whole transaction ends.

Signed-off-by: Joakim Tjernlund <>
Signed-off-by: Ben Dooks <>
12 years agoi2c: imx: disable clock when it's possible to save power.
Richard Zhao [Sat, 17 Oct 2009 09:46:24 +0000 (17:46 +0800)]
i2c: imx: disable clock when it's possible to save power.

Enable clock before START, disable it after STOP.

Signed-off-by: Richard Zhao <>
Signed-off-by: Ben Dooks <>
12 years agoi2c: imx: only imx1 needs disable delay
Richard Zhao [Sat, 17 Oct 2009 09:46:23 +0000 (17:46 +0800)]
i2c: imx: only imx1 needs disable delay

check cpu_is_mx1() when disable delay.

Signed-off-by: Richard Zhao <>
Signed-off-by: Ben Dooks <>
12 years agoi2c: imx: check busy bit when START/STOP
Richard Zhao [Sat, 17 Oct 2009 09:46:22 +0000 (17:46 +0800)]
i2c: imx: check busy bit when START/STOP

The controller can't do anything else before it actually generates START/STOP.
So we check busy bit to make sure START/STOP is successfully finished.

If we don't check busy bit, START/STOP may fail on some fast CPUs.

Signed-off-by: Richard Zhao <>
Signed-off-by: Ben Dooks <>
12 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Mon, 2 Nov 2009 20:23:21 +0000 (12:23 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs

* 'for-linus' of git://
  9p: fix readdir corner cases
  9p: fix readlink
  9p: fix a small bug in readdir for long directories

12 years agomac80211: check interface is down before type change
Johannes Berg [Sun, 1 Nov 2009 18:25:40 +0000 (19:25 +0100)]
mac80211: check interface is down before type change

For some strange reason the netif_running() check
ended up after the actual type change instead of
before, potentially causing all kinds of problems
if the interface is up while changing the type;
one of the problems manifests itself as a warning:

WARNING: at net/mac80211/iface.c:651 ieee80211_teardown_sdata+0xda/0x1a0 [mac80211]()
Hardware name: Aspire one
Pid: 2596, comm: wpa_supplicant Tainted: G        W  2.6.31-10-generic #32-Ubuntu
Call Trace:
 [] warn_slowpath_common+0x6d/0xa0
 [] warn_slowpath_null+0x15/0x20
 [] ieee80211_teardown_sdata+0xda/0x1a0 [mac80211]
 [] ieee80211_if_change_type+0x4a/0xc0 [mac80211]
 [] ieee80211_change_iface+0x61/0xa0 [mac80211]
 [] cfg80211_wext_siwmode+0xc7/0x120 [cfg80211]
 [] ioctl_standard_call+0x58/0xf0


Cc: Arjan van de Ven <>
Signed-off-by: Johannes Berg <>
Signed-off-by: John W. Linville <>
12 years agocfg80211: fix NULL ptr deref
Johannes Berg [Sat, 31 Oct 2009 06:40:37 +0000 (07:40 +0100)]
cfg80211: fix NULL ptr deref

commit 211a4d12abf86fe0df4cd68fc6327cbb58f56f81
  Author: Johannes Berg <>
  Date:   Tue Oct 20 15:08:53 2009 +0900

      cfg80211: sme: deauthenticate on assoc failure

introduced a potential NULL pointer dereference that
some people have been hitting for some reason -- the
params.bssid pointer is not guaranteed to be non-NULL
for what seems to be a race between various ways of
reaching the same thing.

While I'm trying to analyse the problem more let's
first fix the crash. I think the real fix may be to
avoid doing _anything_ if it ended up being NULL, but
right now I'm not sure yet.

I think
might also be this issue.

Reported-by: Parag Warudkar <>
Tested-by: Parag Warudkar <>
Signed-off-by: Johannes Berg <>
Signed-off-by: John W. Linville <>
12 years agoMerge branch 'release' of git://
Linus Torvalds [Mon, 2 Nov 2009 18:22:25 +0000 (10:22 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6

* 'release' of git://
  Revert "[IA64] fix percpu warnings"
  [IA64] fix percpu warnings
  [IA64] SMT friendly version of spin_unlock_wait()
  [IA64] use printk_once() unaligned.c/io_common.c
  [IA64] Require SAL 3.2 in order to do extended config space ops
  [IA64] unsigned cannot be less than 0 in sn_hwperf_ioctl()
  [IA64] Restore registers in the stack on INIT
  [IA64] Re-implement spinaphores using ticket lock concepts
  [IA64] Squeeze ticket locks back into 4 bytes.

12 years agoRevert "ext4: Remove journal_checksum mount option and enable it by default"
Linus Torvalds [Mon, 2 Nov 2009 18:15:27 +0000 (10:15 -0800)]
Revert "ext4: Remove journal_checksum mount option and enable it by default"

This reverts commit d0646f7b636d067d715fab52a2ba9c6f0f46b0d7, as
requested by Eric Sandeen.

It can basically cause an ext4 filesystem to miss recovery (and thus get
mounted with errors) if the journal checksum does not match.

Quoth Eric:

   "My hand-wavy hunch about what is happening is that we're finding a
    bad checksum on the last partially-written transaction, which is
    not surprising, but if we have a wrapped log and we're doing the
    initial scan for head/tail, and we abort scanning on that bad
    checksum, then we are essentially running an unrecovered filesystem.

    But that's hand-wavy and I need to go look at the code.

    We lived without journal checksums on by default until now, and at
    this point they're doing more harm than good, so we should revert
    the default-changing commit until we can fix it and do some good
    power-fail testing with the fixes in place."


for all the gory details.

Requested-by: Eric Sandeen <>
Cc: Theodore Tso <>
Cc: Alexey Fisher <>
Cc: Maxim Levitsky <>
Cc: Aneesh Kumar K.V <>
Cc: Mathias Burén <>
Signed-off-by: Linus Torvalds <>
12 years agoMerge branch 'for-linus' of
Linus Torvalds [Mon, 2 Nov 2009 17:53:19 +0000 (09:53 -0800)]
Merge branch 'for-linus' of /home/rmk/linux-2.6-arm

* 'for-linus' of
  ARM: ensure initial page tables are setup for SMP systems
  ARM: 5776/1: Check compiler version and EABI support when adding ARM unwind support.
  ARM: 5774/1: Fix Realview ARM1176PB board reboot
  ARM: Fix errata 411920 workarounds
  ARM: Fix sparsemem with SPARSEMEM_EXTREME enabled
  ARM: Use GFP_DMA only for masks _less_ than 32-bit
  ARM: integrator: allow Integrator to be built with highmem
  ARM: Fix signal restart issues with NX and OABI compat

12 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Mon, 2 Nov 2009 17:50:22 +0000 (09:50 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://
  ALSA: hda - Don't check invalid HP pin
  ALSA: dummy - Fix descriptions of pcm_substreams parameter
  ALSA: pcmcia: use dynamic debug infrastructure, deprecate CS_CHECK (sound)
  ALSA: hda: Use quirk mask for Dell Inspiron Mini9/Vostro A90 using ALC268
  sound: via82xx: deactivate DXS controls of inactive streams
  ALSA: snd-usb-caiaq: Bump version number to 1.3.20
  ALSA: snd-usb-caiaq: Lock on stream start/unpause
  ALSA: snd-usb-caiaq: Missing lock around use of buffer positions
  ALSA: sound/parisc: Move dereference after NULL test
  ALSA: sound: Move dereference after NULL test and drop unnecessary NULL tests
  ALSA: hda_intel: Add the Linux device ID for NVIDIA HDA controller
  ALSA: pcsp - Fix nforce workaround
  ALSA: SND_CS5535AUDIO: Remove the X86 platform dependency
  ASoC: Amstrad Delta: add info about the line discipline requirement to Kconfig help text
  ASoC: Fix possible codec_dai->ops NULL pointer problems
  ALSA: hda - Fix capture source checks for ALC662/663 codecs
  ASoC: Serialize access to dapm_power_widgets()

12 years agoMerge branch 'core-fixes-for-linus' of git://
Linus Torvalds [Mon, 2 Nov 2009 17:46:33 +0000 (09:46 -0800)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://
  futex: Fix spurious wakeup for requeue_pi really

12 years agoMerge branch 'perf-fixes-for-linus' of git://
Linus Torvalds [Mon, 2 Nov 2009 17:46:06 +0000 (09:46 -0800)]
Merge branch 'perf-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus' of git://
  perf tools: Remove -Wcast-align
  perf tools: Fix compatibility with libelf 0.8 and autodetect
  perf events: Don't generate events for the idle task when exclude_idle is set
  perf events: Fix swevent hrtimer sampling by keeping track of remaining time when enabling/disabling swevent hrtimers

12 years agoMerge branch 'tracing-fixes-for-linus' of git://
Linus Torvalds [Mon, 2 Nov 2009 17:45:44 +0000 (09:45 -0800)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://
  tracing: Remove cpu arg from the rb_time_stamp() function
  tracing: Fix comment typo and documentation example
  tracing: Fix trace_seq_printf() return value
  tracing: Update *ppos instead of filp->f_pos

12 years agoMerge branch 'x86-fixes-for-linus' of git://
Linus Torvalds [Mon, 2 Nov 2009 17:45:17 +0000 (09:45 -0800)]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://
  x86: Make EFI RTC function depend on 32bit again
  x86-64: Fix register leak in 32-bit syscall audting
  x86: crash_dump: Fix non-pae kdump kernel memory accesses
  x86: Side-step lguest problem by only building cmpxchg8b_emu for pre-Pentium

12 years agomm: remove incorrect swap_count() from try_to_unuse()
Bo Liu [Mon, 2 Nov 2009 16:50:33 +0000 (16:50 +0000)]
mm: remove incorrect swap_count() from try_to_unuse()

In try_to_unuse(), swcount is a local copy of *swap_map, including the
SWAP_HAS_CACHE bit; but a wrong comparison against swap_count(*swap_map),
which masks off the SWAP_HAS_CACHE bit, succeeded where it should fail.

That had the effect of resetting the mm from which to start searching
for the next swap page, to an irrelevant mm instead of to an mm in which
this swap page had been found: which may increase search time by ~20%.
But we're used to swapoff being slow, so never noticed the slowdown.

Remove that one spurious use of swap_count(): Bo Liu thought it merely
redundant, Hugh rewrote the description since it was measurably wrong.

Signed-off-by: Bo Liu <>
Signed-off-by: Hugh Dickins <>
Reviewed-by: KAMEZAWA Hiroyuki <>
Signed-off-by: Linus Torvalds <>
12 years agoi915: fix intel graphics suspend breakage due to resume/lid event confusion
Linus Torvalds [Mon, 2 Nov 2009 17:29:55 +0000 (09:29 -0800)]
i915: fix intel graphics suspend breakage due to resume/lid event confusion

In commit c1c7af60892070e4b82ad63bbfb95ae745056de0 ("drm/i915: force
mode set at lid open time") the intel graphics driver was taught to
restore the LVDS mode on lid open.

That caused problems with interaction with the suspend/resume code,
which commonly runs at the same time (suspend is often caused by the lid
close event, while lid open is commonly a resume event), which was
worked around with in commit 06891e27a9b5dba5268bb80e41a283f51335afe7
("drm/i915: fix suspend/resume breakage in lid notifier").

However, in the meantime the lid event code had also grown a user event
notifier (commit 06324194eee97a51b5f172270df49ec39192d6cc: "drm/i915:
generate a KMS uevent at lid open/close time"), and now _that_ causes
problems with suspend/resume and some versions of Xorg reacting to those
uevents by setting the mode.

So this effectively reverts that commit 06324194ee, and makes the lid
open protection logic against suspend/resume more explicit.  This fixes
at least one laptop. See

for more details.

Acked-by: Jesse Barnes <>
Cc: Riccardo Magliocchetti <>
Cc: Eric Anholt <>
Signed-off-by: Linus Torvalds <>
12 years agoRevert "[IA64] fix percpu warnings"
Tony Luck [Mon, 2 Nov 2009 17:23:08 +0000 (09:23 -0800)]
Revert "[IA64] fix percpu warnings"

This reverts commit b94b08081fcecf83fa690d6c5664f6316fe72208.

genksyms currently cannot handle complicated types for exported
percpu variables.  Drop this patch for now as it prevents a
module from being loaded on sn2 systems:

 xpc: no symbol version for per_cpu____sn_cnodeid_to_nasid
 xpc: Unknown symbol per_cpu____sn_cnodeid_to_nasid

Signed-off-by: Tony Luck <>
12 years agoARM: ensure initial page tables are setup for SMP systems
Russell King [Sun, 1 Nov 2009 17:44:24 +0000 (17:44 +0000)]
ARM: ensure initial page tables are setup for SMP systems

Mapping the same memory using two different attributes (memory
type, shareability, cacheability) is unpredictable.  During boot,
we encounter a situation when we're updating the kernel's page
tables which can lead to dirty cache lines existing in the cache
which are subsequently missed.  This causes stack corruption,
and therefore a crash.

Therefore, ensure that the shared and cacheability settings
matches the configuration that will be used later; this together
with the restriction in early_cachepolicy() ensures that we won't
create a mismatch during boot.

Acked-by: Catalin Marinas <>
Signed-off-by: Russell King <>
12 years agoARM: 5776/1: Check compiler version and EABI support when adding ARM unwind support.
Claudio Scordino [Fri, 30 Oct 2009 11:06:05 +0000 (12:06 +0100)]
ARM: 5776/1: Check compiler version and EABI support when adding ARM unwind support.

ARM unwind is known to compile only with EABI and not-buggy compilers.
The problem is not the unwinding information but the -fno-frame-pointer
option added as a result of !CONFIG_FRAME_POINTER.  Now we check the
compiler and raise a #warning in case of wrong compiler.

Signed-off-by: Claudio Scordino <>
Signed-off-by: Russell King <>
12 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Mon, 2 Nov 2009 15:18:33 +0000 (16:18 +0100)]
Merge branch 'fix/hda' into for-linus

12 years agoMerge branch 'fix/asoc' into for-linus
Takashi Iwai [Mon, 2 Nov 2009 15:18:29 +0000 (16:18 +0100)]
Merge branch 'fix/asoc' into for-linus

12 years ago9p: fix readdir corner cases
Eric Van Hensbergen [Mon, 2 Nov 2009 14:39:28 +0000 (08:39 -0600)]
9p: fix readdir corner cases

The patch below also addresses a couple of other corner cases in readdir
seen with a large (e.g. 64k) msize.  I'm not sure what people think of
my co-opting of fid->aux here.  I'd be happy to rework if there's a better

When the size of the user supplied buffer passed to readdir is smaller
than the data returned in one go by the 9P read request, v9fs_dir_readdir()
currently discards extra data so that, on the next call, a 9P read
request will be issued with offset < previous offset + bytes returned,
which voilates the constraint described in paragraph 3 of read(5) description.
This patch preseves the leftover data in fid->aux for use in the next call.

Signed-off-by: Jim Garlick <>
Signed-off-by: Eric Van Hensbergen <>
12 years ago9p: fix readlink
Martin Stava [Mon, 2 Nov 2009 14:39:34 +0000 (08:39 -0600)]
9p: fix readlink

I do not know if you've looked on the patch, but unfortunately it is
incorrect. A suggested better version is in this email (the old
version didn't work in case the user provided buffer was not long
enough - it incorrectly appended null byte on a position of last char,
and thus broke the contract of the readlink method). However, I'm
still not sure this is 100% correct thing to do, I think readlink is
supposed to return buffer without last null byte in all cases, but we
do return last null byte (even the old version).. on the other hand it
is likely unspecified what is in the remaining part of the buffer, so
null character may be fine there ;):

Signed-off-by: Martin Stava <>
Signed-off-by: Eric Van Hensbergen <>
12 years ago9p: fix a small bug in readdir for long directories
Martin Stava [Mon, 2 Nov 2009 14:39:35 +0000 (08:39 -0600)]
9p: fix a small bug in readdir for long directories

Here is a proposed patch for bug in readdir. Listing of dirs with
many files fails without this patch.

Signed-off-by: Martin Stava <>
Signed-off-by: Eric Van Hensbergen <>
12 years agoALSA: hda - Don't check invalid HP pin
Takashi Iwai [Mon, 2 Nov 2009 13:23:15 +0000 (14:23 +0100)]
ALSA: hda - Don't check invalid HP pin

alc_automute_pin() might be called even if any HP pin is defined, and
it will result in verbs with NID=0.

This patch adds a check for the validity of HP widget before issuing
any verbs.

Signed-off-by: Takashi Iwai <>
12 years agoALSA: dummy - Fix descriptions of pcm_substreams parameter
Takashi Iwai [Mon, 2 Nov 2009 13:10:59 +0000 (14:10 +0100)]
ALSA: dummy - Fix descriptions of pcm_substreams parameter

Now up to 128 substreams are supported.

Reported-by: Adrian Bridgett <>
Signed-off-by: Takashi Iwai <>
12 years agoALSA: pcmcia: use dynamic debug infrastructure, deprecate CS_CHECK (sound)
Dominik Brodowski [Sat, 24 Oct 2009 19:43:03 +0000 (21:43 +0200)]
ALSA: pcmcia: use dynamic debug infrastructure, deprecate CS_CHECK (sound)

Convert PCMCIA drivers to use the dynamic debug infrastructure, instead of
requiring manual settings of PCMCIA_DEBUG.

Also, remove all usages of the CS_CHECK macro and replace them with proper
Linux style calling and return value checking. The extra error reporting may
be dropped, as the PCMCIA core already complains about any (non-driver-author)

Signed-off-by: Dominik Brodowski <>
Signed-off-by: Takashi Iwai <>
12 years agoALSA: hda: Use quirk mask for Dell Inspiron Mini9/Vostro A90 using ALC268
Daniel T Chen [Sun, 1 Nov 2009 23:32:29 +0000 (18:32 -0500)]
ALSA: hda: Use quirk mask for Dell Inspiron Mini9/Vostro A90 using ALC268

We should use a quirk mask for these Dell Inspiron Mini9s and Vostro
A90s, as the model=dell quirk appears to enable audio on them.

Signed-off-by: Daniel T Chen <>
Signed-off-by: Takashi Iwai <>
12 years agoARM: 5774/1: Fix Realview ARM1176PB board reboot
Philby John [Wed, 28 Oct 2009 18:09:12 +0000 (19:09 +0100)]
ARM: 5774/1: Fix Realview ARM1176PB board reboot

This is the fix for proper reboot of Realview ARM1176PB board
when issuing the reboot command. Setting the eighth bit of
control register SYS_RESETCTL to 1 to force a soft reset.
arch_reset() is modified for realview machines to call machine
specific reset function pointers.

Signed-off-by: Philby John <>
Acked-by: Catalin Marinas <>
Signed-off-by: Russell King <>
12 years agoMerge git://
Linus Torvalds [Sat, 31 Oct 2009 19:16:20 +0000 (12:16 -0700)]
Merge git://git./linux/kernel/git/gregkh/staging-2.6

* git://
  Staging: fix wireless drivers depends
  Staging: wireless drivers Kconfig change
  Staging: android: mark subsystem as broken
  Staging: remove stlc45xx driver
  Staging: rtl8187se/rtl8192e/rtl8192su: allow module unload
  Staging: vt6656: fix the memory free bug in vntwusb_disconnect()
  Staging: Panel: prevent driver from calling misc_deregister twice on same ressource
  Staging: hv: fix oops in vmbus - missing #include
  Staging: hv: fix oops in vmbus - netvsc list_head
  Staging: hv: fix oops in vmbus - udev events
  Staging: hv: Fix vmbus load hang caused by faulty data packing
  Staging: hv: Fix null pointer error after vmbus loading
  Staging: hv TODO patches

12 years agoMerge git://
Linus Torvalds [Sat, 31 Oct 2009 19:16:09 +0000 (12:16 -0700)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6

* git://
  USB: fsl_udc_core: Fix kernel oops on module removal
  USB: option: TLAYTECH TUE800 support
  USB: r8a66597-hcd: fix cannot detect a device when uses_new_polling is set
  USB: serial: sierra driver autopm fixes
  USB: serial: sierra driver send_setup() autopm fix
  USB: rndis_host: debug info clobbered before it is logged

12 years agoMerge git://
Linus Torvalds [Sat, 31 Oct 2009 19:15:58 +0000 (12:15 -0700)]
Merge git://git./linux/kernel/git/gregkh/tty-2.6

* git://
  tty: Mark generic_serial users as BROKEN

12 years agoMerge git://
Linus Torvalds [Sat, 31 Oct 2009 19:15:28 +0000 (12:15 -0700)]
Merge git://git./linux/kernel/git/gregkh/driver-core-2.6

* git://
  Documentation: ABI: /sys/devices/system/cpu/cpu#/node
  Documentation: ABI: /sys/devices/system/cpu/cpuidle/
  Documentation: ABI: /sys/devices/system/cpu/sched_[mc|smt]_power_savings
  Documentation: ABI: /sys/devices/system/cpu/cpu#/ topology files
  Documentation: ABI: /sys/devices/system/cpu/ topology files
  Documentation: ABI: document /sys/devices/system/cpu/
  Documentation: ABI: rename sysfs-devices-cache_disable properly
  Driver core: allow certain drivers prohibit bind/unbind via sysfs
  Driver core: fix driver_register() return value

12 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Sat, 31 Oct 2009 19:14:56 +0000 (12:14 -0700)]
Merge branch 'for-linus' of git://

* 'for-linus' of git://
  [S390] smp: fix sigp sense handling
  [S390] smp: fix sigp stop handling
  [S390] cputime: fix overflow on 31 bit systems
  [S390] call home: fix string length handling
  [S390] call home: fix error handling in init function
  [S390] smp: fix prefix handling of offlined cpus
  [S390] s/r: cmm resume fix
  [S390] call home: fix local buffer usage in proc handler

12 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Sat, 31 Oct 2009 19:12:49 +0000 (12:12 -0700)]
Merge branch 'for-linus' of git://git./fs/xfs/xfs

* 'for-linus' of git://
  xfs: fix xfs_quota remove error
  xfs: free temporary cursor in xfs_dialloc

12 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Sat, 31 Oct 2009 19:12:19 +0000 (12:12 -0700)]
Merge branch 'for-linus' of git://

* 'for-linus' of git://
  async_tx: fix asynchronous raid6 recovery for ddf layouts
  async_pq: rename scribble page
  async_pq: kill a stray dma_map() call and other cleanups
  md/raid6: kill a gcc-4.0.1 'uninitialized variable' warning
  raid6/async_tx: handle holes in block list in async_syndrome_val
  md/async: don't pass a memory pointer as a page pointer.
  md: Fix handling of raid5 array which is being reshaped to fewer devices.
  md: fix problems with RAID6 calculations for DDF.
  md/raid456: downlevel multicore operations to raid_run_ops
  md: drivers/md/ replaced with awk analog
  md: remove clumsy usage of do_sync_mapping_range from bitmap code
  md: raid1/raid10: handle allocation errors during array setup.
  md/raid5: initialize conf->device_lock earlier
  md/raid1/raid10: add a cond_resched
  Revert "md: do not progress the resync process if the stripe was blocked"

12 years agodpt_i2o: Fix typo of EINVAL
OGAWA Hirofumi [Fri, 30 Oct 2009 08:02:31 +0000 (17:02 +0900)]
dpt_i2o: Fix typo of EINVAL

Commit ef7562b7f28319e6dd1f85dc1af87df2a7a84832 ("dpt_i2o: Fix up
copy*user") had a silly typo: EINVAL should be -EINVAL.

Signed-off-by: OGAWA Hirofumi <>
Cc: Alan Cox <>
Signed-off-by: Linus Torvalds <>
12 years agoNOMMU: Don't pass NULL pointers to fput() in do_mmap_pgoff()
David Howells [Fri, 30 Oct 2009 13:13:26 +0000 (13:13 +0000)]
NOMMU: Don't pass NULL pointers to fput() in do_mmap_pgoff()

Don't pass NULL pointers to fput() in the error handling paths of the NOMMU
do_mmap_pgoff() as it can't handle it.

The following can be used as a test program:

int main() { static long long a[1024 * 1024 * 20] = { 0 }; return a;}

Without the patch, the code oopses in atomic_long_dec_and_test() as called by
fput() after the kernel complains that it can't allocate that big a chunk of
memory.  With the patch, the kernel just complains about the allocation size
and then the program segfaults during execve() as execve() can't complete the
allocation of all the new ELF program segments.

Reported-by: Robin Getz <>
Signed-off-by: David Howells <>
Acked-by: Robin Getz <>
Signed-off-by: Linus Torvalds <>
12 years agoDocumentation: ABI: /sys/devices/system/cpu/cpu#/node
Alex Chiang [Thu, 22 Oct 2009 04:15:30 +0000 (22:15 -0600)]
Documentation: ABI: /sys/devices/system/cpu/cpu#/node

Describe NUMA node symlink created for CPUs when CONFIG_NUMA is set.

Cc: Randy Dunlap <>
Signed-off-by: Alex Chiang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoDocumentation: ABI: /sys/devices/system/cpu/cpuidle/
Alex Chiang [Thu, 22 Oct 2009 03:45:41 +0000 (21:45 -0600)]
Documentation: ABI: /sys/devices/system/cpu/cpuidle/

Document cpuidle sysfs attributes by reading code, Documentation/cpuidle/,
and git logs.

Cc: Venki Pallipadi <>
Cc: Len Brown <>
Signed-off-by: Alex Chiang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoDocumentation: ABI: /sys/devices/system/cpu/sched_[mc|smt]_power_savings
Alex Chiang [Thu, 22 Oct 2009 03:45:36 +0000 (21:45 -0600)]
Documentation: ABI: /sys/devices/system/cpu/sched_[mc|smt]_power_savings

Document sched_[mc|smt]_power_savings by reading existing code and
git logs.

Cc: Suresh Siddha <>
Cc: Ingo Molnar <>
Signed-off-by: Alex Chiang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoDocumentation: ABI: /sys/devices/system/cpu/cpu#/ topology files
Alex Chiang [Thu, 22 Oct 2009 03:45:31 +0000 (21:45 -0600)]
Documentation: ABI: /sys/devices/system/cpu/cpu#/ topology files

Add brief descriptions for the following sysfs files:


The descriptions in Documentation/cputopology.txt weren't very
informative, so I attempted a better description based on code
reading and hopeful guessing.

Updated Documentation/cputopology.txt with the better descriptions and
fixed some style issues.

Cc: Mike Travis <>
Cc: Rusty Russell <>
Signed-off-by: Alex Chiang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoDocumentation: ABI: /sys/devices/system/cpu/ topology files
Alex Chiang [Thu, 22 Oct 2009 03:45:25 +0000 (21:45 -0600)]
Documentation: ABI: /sys/devices/system/cpu/ topology files

Add brief descriptions for the following sysfs files:


Excerpted the relevant information from Documentation/cputopology.txt
and pointed back to cputopology.txt as the authoritative source of

Cc: Mike Travis <>
Cc: Rusty Russell <>
Signed-off-by: Alex Chiang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoDocumentation: ABI: document /sys/devices/system/cpu/
Alex Chiang [Thu, 22 Oct 2009 03:45:20 +0000 (21:45 -0600)]
Documentation: ABI: document /sys/devices/system/cpu/

This interface has been around for a long time, but hasn't been
officially documented.

Document the top level sysfs directory for CPU attributes.

Signed-off-by: Alex Chiang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoDocumentation: ABI: rename sysfs-devices-cache_disable properly
Alex Chiang [Thu, 22 Oct 2009 03:45:15 +0000 (21:45 -0600)]
Documentation: ABI: rename sysfs-devices-cache_disable properly

Rename sysfs-devices-cache_disable to sysfs-devices-system-cpu, in
order to keep a stricter correlation between a sysfs directory and
its documentation.

Reported-by: David Rientjes <>
Signed-off-by: Alex Chiang <>
Acked-by: David Rientjes <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoDriver core: allow certain drivers prohibit bind/unbind via sysfs
Dmitry Torokhov [Tue, 13 Oct 2009 03:17:41 +0000 (20:17 -0700)]
Driver core: allow certain drivers prohibit bind/unbind via sysfs

Platform drivers registered via platform_driver_probe() can be bound
to devices only once, upon registration, because discard their probe()
routines to save memory. Unbinding the driver through sysfs 'unbind'
leaves the device stranded and confuses users so let's not create
bind and unbind attributes for such drivers.

Signed-off-by: Dmitry Torokhov <>
Cc: Éric Piel <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoDriver core: fix driver_register() return value
Stas Sergeev [Sat, 17 Oct 2009 20:31:38 +0000 (00:31 +0400)]
Driver core: fix driver_register() return value

In this patch:;a=commitdiff;h=16dc42e018c2868211b4928f20a957c0c216126c
the check was added for another driver to already claim the same device
on the same bus. But the returned error code was wrong: to modprobe, the
-EEXIST means that _this_ driver is already installed. It therefore
doesn't produce the needed error message when _another_ driver is trying
to register for the same device.  Returning -EBUSY fixes the problem.

Signed-off-by: Stas Sergeev <>
Cc: stable <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoUSB: fsl_udc_core: Fix kernel oops on module removal
Anton Vorontsov [Thu, 29 Oct 2009 16:50:43 +0000 (19:50 +0300)]
USB: fsl_udc_core: Fix kernel oops on module removal

fsl_udc_release() calls dma_free_coherent() with an inappropriate
device passed to it, and since the device has no dma_ops, the following
oops pops up:

  Kernel BUG at d103ce9c [verbose debug info unavailable]
  Oops: Exception in kernel mode, sig: 5 [#1]
  NIP [d103ce9c] fsl_udc_release+0x50/0x80 [fsl_usb2_udc]
  LR [d103ce74] fsl_udc_release+0x28/0x80 [fsl_usb2_udc]
  Call Trace:
  [cfbc7dc0] [d103ce74] fsl_udc_release+0x28/0x80 [fsl_usb2_udc]
  [cfbc7dd0] [c01a35c4] device_release+0x2c/0x90
  [cfbc7de0] [c016b480] kobject_cleanup+0x58/0x98
  [cfbc7e00] [c016c52c] kref_put+0x54/0x6c
  [cfbc7e10] [c016b360] kobject_put+0x34/0x64
  [cfbc7e20] [c01a1d0c] put_device+0x1c/0x2c
  [cfbc7e30] [d103dbfc] fsl_udc_remove+0xc0/0x1e4 [fsl_usb2_udc]

This patch fixes the issue by passing dev->parent, which points to
a correct device.

Signed-off-by: Anton Vorontsov <>
Cc: Li Yang <>
Cc: David Brownell <>
Cc: Guennadi Liakhovetski <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoUSB: option: TLAYTECH TUE800 support
Bryan Wu [Thu, 22 Oct 2009 07:00:36 +0000 (15:00 +0800)]
USB: option: TLAYTECH TUE800 support

Add ID for Tlaytech TUE800 CDMA modem to the option driver.

Signed-off-by: Bryan Wu <>
Acked-By: Matthias Urlichs <>
Cc: stable <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoUSB: r8a66597-hcd: fix cannot detect a device when uses_new_polling is set
Yoshihiro Shimoda [Wed, 21 Oct 2009 11:33:39 +0000 (20:33 +0900)]
USB: r8a66597-hcd: fix cannot detect a device when uses_new_polling is set

Signed-off-by: Yoshihiro Shimoda <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoUSB: serial: sierra driver autopm fixes
Elina Pasheva [Tue, 27 Oct 2009 20:49:59 +0000 (13:49 -0700)]
USB: serial: sierra driver autopm fixes

This patch presents fixes for the autosuspend feature implementation in
sierra usb serial driver in  functions sierra_open(), sierra_close() and

The patch "sierra_close() must resume the device before it notifies it
of a closure" submitted by Oliver Neukum on Wed, October 14 has been
merged as fix in sierra_close() function.

The bug fix  in sierra_open() function restores the autopm interface
state on error condition.

The bug fix in in stop_read_write_urbs() function assures that both
receive and interrupt urbs are recycled.

Signed-off-by: Elina Pasheva <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoUSB: serial: sierra driver send_setup() autopm fix
Elina Pasheva [Fri, 16 Oct 2009 19:04:54 +0000 (12:04 -0700)]
USB: serial: sierra driver send_setup() autopm fix

This patch presents a fix for the autosuspend feature implementation in
sierra usb serial driver for function sierra_send_setup().  Because it
is possible to call sierra_send_setup() before sierra_open() or after
sierra_close() we added a get/put interface activity to assure that the
usb control can happen even when the device is autosuspended.

Signed-off-by: Elina Pasheva <>
Tested-by: Matthew Safar <>
Cc: stable <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoUSB: rndis_host: debug info clobbered before it is logged
George Nassar [Wed, 14 Oct 2009 23:27:41 +0000 (18:27 -0500)]
USB: rndis_host: debug info clobbered before it is logged

The MTU throttle-down if a RNDIS device doesn't support a particular
packet size is being incorrectly logged.  The attempted packet size is
being clobbered before it gets logged.

First patch; please inform if I'm doing this incorrectly.  Diff'd
against latest official source as per the FAQ; forward port to current
git version is straightforward.

Signed-off-by: George Nassar <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: fix wireless drivers depends
Randy Dunlap [Thu, 29 Oct 2009 16:52:02 +0000 (09:52 -0700)]
Staging: fix wireless drivers depends

These drivers can (erroneously) be enabled even when
Stop this.

Signed-off-by: Randy Dunlap <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: wireless drivers Kconfig change
Greg Kroah-Hartman [Tue, 27 Oct 2009 22:46:18 +0000 (15:46 -0700)]
Staging: wireless drivers Kconfig change

Change the wireless drivers to depend on CONFIG_WLAN instead of
CONFIG_WLAN_80211 which is going away soon.

Cc: John W. Linville <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: android: mark subsystem as broken
Greg Kroah-Hartman [Mon, 26 Oct 2009 23:03:51 +0000 (16:03 -0700)]
Staging: android: mark subsystem as broken

It's causing lots of build errors, so just mark it as broken.  It is
scheduled to be removed in 2.6.33 anyway.

Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: remove stlc45xx driver
Greg Kroah-Hartman [Mon, 26 Oct 2009 23:35:32 +0000 (16:35 -0700)]
Staging: remove stlc45xx driver

It's no longer needed as the p54spi driver is the same thing,
under a different name and in the correct portion of the kernel tree.

Cc: Javier Martinez Canillas <>
Cc: Christian Lamparter <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: rtl8187se/rtl8192e/rtl8192su: allow module unload
Herton Ronaldo Krzesinski [Fri, 2 Oct 2009 14:03:38 +0000 (11:03 -0300)]
Staging: rtl8187se/rtl8192e/rtl8192su: allow module unload

On rtl81* additions, they had its wireless stack made builtin instead of
separated modules. But try_module_get/module_put in stack were kept,
they are uneeded with the stack builtin and makes rtl81* modules
impossible to remove on a system with an rtl81* card. request_module
calls are also uneeded with stack builtin, so remove them too.

Signed-off-by: Herton Ronaldo Krzesinski <>
Cc: Bartlomiej Zolnierkiewicz <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: vt6656: fix the memory free bug in vntwusb_disconnect()
miaofng [Tue, 29 Sep 2009 07:02:53 +0000 (15:02 +0800)]
Staging: vt6656: fix the memory free bug in vntwusb_disconnect()

This patch is used to solve the memory bug when people plug out the wusb card then plug in.
Error logs are following:

root@smdk2440:~# ifdown eth1
AP deauthed me, reason=2.
Config_FileOperation file Not exist
WPA: Terminating
root@smdk2440:~#  ----> !!!!!!!!!!!!!!here plug out the wusbcard
usb 1-1: USB disconnect, address 4
----> !!!!!!!!!!!!!!!!!!!here plug in the wusb card
usb 1-1: new full speed USB device using s3c2410-ohci and address 5
usb 1-1: New USB device found, idVendor=160a, idProduct=3184
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-1: Product: VNT USB-802.11 Wireless LAN Adapter
usb 1-1: Manufacturer: VIA Networking Technologies, Inc.
usb 1-1: configuration #1 chosen from 1 choice
VIA Networking Wireless LAN USB Driver Ver. 1.19_12
Copyright (c) 2004 VIA Networking Technologies, Inc.
kernel BUG at mm/slab.c:2974!
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 817 [#1] PREEMPT
Modules linked in: vt6656_stage
CPU: 0    Not tainted  (2.6.32-rc2 #14)
PC is at __bug+0x1c/0x28
LR is at __bug+0x18/0x28
pc : [<c002fb10>]    lr : [<c002fb0c>]    psr: 40000093
sp : c3867c68  ip : c3867bd0  fp : c3866000
r10: c3800600  r9 : c3802430  r8 : 00000004
r7 : c3802428  r6 : c3802660  r5 : c3802420  r4 : a0000013
r3 : 00000000  r2 : c3866000  r1 : 00000003  r0 : 00000024
Flags: nZcv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 0000717f  Table: 330a8000  DAC: 00000017
Process khubd (pid: 152, stack limit = 0xc3866270)
Stack: (0xc3867c68 to 0xc3868000)
7c60:                   c0093fdc c0094088 000000d0 000000d0 00000000 000080d0
7c80: 00000000 a0000013 c39ebec0 c3800600 000080d0 00000001 c03f13cc 00000006
7ca0: c02b36f0 c0094574 c0043428 0001c9de c39ebec0 c39ebea0 c3000c00 c02a6a84
7cc0: 89705f41 c3000c00 c39ebec0 c39ebea0 c3000c00 bf036f24 c39ebec8 00000006
7ce0: 00000000 c3000c00 c39ebec0 c39ebea0 c3000c00 bf036f24 c39ebec8 00000006
7d00: 00000000 bf003398 c00aa514 c3867d20 0000a1ff c00e1448 c39d9f84 c39aabe8
7d20: c3867d50 c00e1888 c39aabe8 c39ebea0 c39ebec0 bf036ebc c3000c00 bf036f24
7d40: 0000bec8 01000000 00000000 c39ebea0 c39ebec0 bf036ebc c3000c00 bf036f24
7d60: c39ebec8 00000000 00000000 c0223798 c39ebec0 c01daa14 bf036eec c3867da0
7d80: c045a4f8 c01da6e4 c39ebec0 00000000 c01daa14 c39ebec0 c3867da0 c01d9870
7da0: c38331a8 c39fcb94 c005b3b4 c39ebec0 c39ebec0 c39ebef4 00000000 c01da890
7dc0: c39ebec0 c39ebec0 c3000c00 c01d97f4 00000000 c01d8470 c39ebea0 c3000c68
7de0: 00000000 c3000c68 c3218a00 c3abcd20 00000001 c39ebec0 c39ebea0 c3000c00
7e00: 00000000 c3000c68 c3218a00 c3abcd20 00000001 c0221ee8 00000001 00000000
7e20: 00000000 00000000 00001388 00000000 c3000c04 c3000c68 c3bc29c0 00000001
7e40: c3bc29c4 00000001 c03f4af8 00000000 c39fe780 c3000c00 00000001 c045ab04
7e60: c3867eb8 c045a3bc c3000c70 00000000 00000000 c0229238 c3000c68 c0223210
7e80: c3000c00 c045aaf0 c045ab04 c0223230 c3000c68 c01daa14 c045ab04 c01da6e4
7ea0: c3000c68 00000000 c01daa14 c3000c68 c3867eb8 c01d9870 c38331a8 c3862f54
7ec0: c005b3b4 c3000c68 c3000c68 c3000c9c 00000002 c01da890 c3867ef9 c3000c68
7ee0: c3829f60 c01d97f4 00000000 c01d8470 c38918e0 c3aaf468 39383102 c300343a
7f00: 00000001 c0219660 c03f1768 c3000c00 00000000 c3000c68 00000002 c3aaf814
7f20: 00000001 00000101 c38918e0 c021b6e0 00000002 00000000 00000000 c3000c00
7f40: c38917c0 c021c418 00000064 00000064 00000101 c3867f60 c005b920 c3867f94
7f60: c3891830 c3aaf400 c3866000 c3aaf400 c3aaf800 00000000 c38918e0 c3aaf400
7f80: 00000012 00000000 00000000 c3837920 c00574a0 c3867f94 c3867f94 00000101
7fa0: 01010001 c3867fd4 c381bf48 c3867fd4 c381bf48 00000000 c021ba3c 00000000
7fc0: 00000000 00000000 00000000 c00573dc 00000000 00000000 c3867fd8 c3867fd8
7fe0: 00000000 00000000 00000000 00000000 00000000 c002ce88 00000000 ffff0000
[<c002fb10>] (__bug+0x1c/0x28) from [<c0094088>] (cache_alloc_refill+0x13c/0x594)
[<c0094088>] (cache_alloc_refill+0x13c/0x594) from [<c0094574>] (__kmalloc+0x94/0xd0)
[<c0094574>] (__kmalloc+0x94/0xd0) from [<c02a6a84>] (alloc_netdev_mq+0x48/0x1b0)
[<c02a6a84>] (alloc_netdev_mq+0x48/0x1b0) from [<bf003398>] (vntwusb_found1+0x58/0x53c [vt6656_stage])
[<bf003398>] (vntwusb_found1+0x58/0x53c [vt6656_stage]) from [<c0223798>] (usb_probe_interface+0x130/0x180)
[<c0223798>] (usb_probe_interface+0x130/0x180) from [<c01da6e4>] (driver_probe_device+0xac/0x164)
[<c01da6e4>] (driver_probe_device+0xac/0x164) from [<c01d9870>] (bus_for_each_drv+0x50/0x90)
[<c01d9870>] (bus_for_each_drv+0x50/0x90) from [<c01da890>] (device_attach+0x50/0x68)
[<c01da890>] (device_attach+0x50/0x68) from [<c01d97f4>] (bus_probe_device+0x28/0x54)
[<c01d97f4>] (bus_probe_device+0x28/0x54) from [<c01d8470>] (device_add+0x3b4/0x4f0)
[<c01d8470>] (device_add+0x3b4/0x4f0) from [<c0221ee8>] (usb_set_configuration+0x524/0x5b8)
[<c0221ee8>] (usb_set_configuration+0x524/0x5b8) from [<c0229238>] (generic_probe+0x5c/0xa0)
[<c0229238>] (generic_probe+0x5c/0xa0) from [<c0223230>] (usb_probe_device+0x48/0x54)
[<c0223230>] (usb_probe_device+0x48/0x54) from [<c01da6e4>] (driver_probe_device+0xac/0x164)
[<c01da6e4>] (driver_probe_device+0xac/0x164) from [<c01d9870>] (bus_for_each_drv+0x50/0x90)
[<c01d9870>] (bus_for_each_drv+0x50/0x90) from [<c01da890>] (device_attach+0x50/0x68)
[<c01da890>] (device_attach+0x50/0x68) from [<c01d97f4>] (bus_probe_device+0x28/0x54)
[<c01d97f4>] (bus_probe_device+0x28/0x54) from [<c01d8470>] (device_add+0x3b4/0x4f0)
[<c01d8470>] (device_add+0x3b4/0x4f0) from [<c021b6e0>] (usb_new_device+0x100/0x174)
[<c021b6e0>] (usb_new_device+0x100/0x174) from [<c021c418>] (hub_thread+0x9dc/0xeec)
[<c021c418>] (hub_thread+0x9dc/0xeec) from [<c00573dc>] (kthread+0x78/0x80)
[<c00573dc>] (kthread+0x78/0x80) from [<c002ce88>] (kernel_thread_exit+0x0/0x8)
Code: e1a01000 e59f000c eb005014 e3a03000 (e5833000)
---[ end trace 2a51e0dbab9e4fbe ]---
note: khubd[152] exited with preempt_count 1

Signed-off-by: miaofng <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: Panel: prevent driver from calling misc_deregister twice on same ressource
Peter Huewe [Mon, 28 Sep 2009 23:22:40 +0000 (01:22 +0200)]
Staging: Panel: prevent driver from calling misc_deregister twice on same ressource

This patch prevents the driver from calling misc_deregister twice on the same
ressouce when unloading the driver.
Unloading the driver without this patch results in a Kernel BUG like this:
Panel driver version 0.9.5 registered on parport0 (io=0x378).
BUG: unable to handle kernel paging request at 0000000000100108
IP: [<ffffffff803c02ee>] misc_deregister+0x2d/0x90
PGD 6caff067 PUD 762b7067 PMD 0
Oops: 0002 [#1] PREEMPT SMP
last sysfs file: /sys/devices/platform/w83627hf.656/in8_input

This patch fixes this issue, although maybe not in the best way possible :)

linux version v2.6.32-rc1 - linus git tree, Di 29. Sep 01:10:18 CEST 2009

Signed-off-by: Peter Huewe <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: hv: fix oops in vmbus - missing #include
Milan Dadok [Wed, 28 Oct 2009 22:23:50 +0000 (23:23 +0100)]
Staging: hv: fix oops in vmbus - missing #include

Add missing #includes to make hv module compile successfull.

Signed-off-by: Milan Dadok <>
Cc: Hank Janssen <>
Cc: Haiyang Zhang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: hv: fix oops in vmbus - netvsc list_head
Milan Dadok [Wed, 28 Oct 2009 22:23:37 +0000 (23:23 +0100)]
Staging: hv: fix oops in vmbus - netvsc list_head

Remove incorrect list_head usage. Variable of type list_head was used in
some function's arguments as list item.

Signed-off-by: Milan Dadok <>
Cc: Hank Janssen <>
Cc: Haiyang Zhang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: hv: fix oops in vmbus - udev events
Milan Dadok [Wed, 28 Oct 2009 22:23:27 +0000 (23:23 +0100)]
Staging: hv: fix oops in vmbus - udev events

Fix typos in udev event send and guid variables copy

Signed-off-by: Milan Dadok <>
Cc: Hank Janssen <>
Cc: Haiyang Zhang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: hv: Fix vmbus load hang caused by faulty data packing
Hank Janssen [Fri, 16 Oct 2009 20:11:36 +0000 (20:11 +0000)]
Staging: hv: Fix vmbus load hang caused by faulty data packing

Fix vmbus load hang caused by wrong data packing.

Signed-off-by: Hank Janssen<>
Signed-off-by: Haiyang Zhang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: hv: Fix null pointer error after vmbus loading
Haiyang Zhang [Fri, 23 Oct 2009 18:14:24 +0000 (18:14 +0000)]
Staging: hv: Fix null pointer error after vmbus loading

Fix null pointer error after vmbus loading. Remove code that checks for
dev_name, the affected structure is kzalloc-ed prior to this routine, so
it is always null at this stage.

Signed-off-by: Hank Janssen <>
Signed-off-by: Haiyang Zhang <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agoStaging: hv TODO patches
Stephen Hemminger [Fri, 9 Oct 2009 22:47:50 +0000 (15:47 -0700)]
Staging: hv TODO patches

Update for more items

Signed-off-by: Stephen Hemminger <>
Cc: Hank Janssen <>
Cc: Haiyang Zhang <>.
Signed-off-by: Greg Kroah-Hartman <>
12 years agotty: Mark generic_serial users as BROKEN
Alan Cox [Thu, 29 Oct 2009 12:16:22 +0000 (12:16 +0000)]
tty: Mark generic_serial users as BROKEN

There isn't much else I can do with these. I can find no hardware for any
of them and no users. The code is broken.

Signed-off-by: Alan Cox <>
Cc: stable <>
Signed-off-by: Greg Kroah-Hartman <>
12 years agolibertas if_usb: Fix crash on 64-bit machines
David Woodhouse [Fri, 30 Oct 2009 17:45:14 +0000 (17:45 +0000)]
libertas if_usb: Fix crash on 64-bit machines

On a 64-bit kernel, skb->tail is an offset, not a pointer. The libertas
usb driver passes it to usb_fill_bulk_urb() anyway, causing interesting
crashes. Fix that by using skb->data instead.

This highlights a problem with usb_fill_bulk_urb(). It doesn't notice
when dma_map_single() fails and return the error to its caller as it
should. In fact it _can't_ currently return the error, since it returns

So this problem was showing up only at unmap time, after we'd already
suffered memory corruption by doing DMA to a bogus address.

Signed-off-by: David Woodhouse <>
Acked-by: David S. Miller <>
Signed-off-by: John W. Linville <>
12 years agomac80211: fix reason code output endianness
Johannes Berg [Thu, 29 Oct 2009 09:09:28 +0000 (10:09 +0100)]
mac80211: fix reason code output endianness

When HT debugging is enabled and we receive a DelBA
frame we print out the reason code in the wrong byte
order. Fix that so we don't get weird values printed.

Signed-off-by: Johannes Berg <>
Signed-off-by: John W. Linville <>
12 years agomac80211: fix addba timer
Johannes Berg [Thu, 29 Oct 2009 07:34:00 +0000 (08:34 +0100)]
mac80211: fix addba timer

The addba timer function acquires the sta spinlock,
but at the same time we try to del_timer_sync() it
under the spinlock which can produce deadlocks.

To fix this, always del_timer_sync() the timer in
ieee80211_process_addba_resp() and add it again
after checking the conditions, if necessary.

Signed-off-by: Johannes Berg <>
Signed-off-by: John W. Linville <>
12 years agoath9k: fix misplaced semicolon on rate control
Luis R. Rodriguez [Thu, 29 Oct 2009 00:19:06 +0000 (20:19 -0400)]
ath9k: fix misplaced semicolon on rate control

The patch e43419f9:

ath9k: downgrade assert in rc.c for invalid rate

downgraded an ASSERT to a WARN_ON() but also misplaced a
semicolon at the end of the second check. What this did
was force the rate control code to always return the rate
even if we should have warned about it. Since this should
not have happened anymore anyway this fix isn't critical
as the proper rate would have been returned anyway.

Reported-by: Jiri Slaby <>
Signed-off-by: Luis R. Rodriguez <>
Signed-off-by: John W. Linville <>
12 years agob43: Fix DMA TX bounce buffer copying
Michael Buesch [Wed, 28 Oct 2009 21:08:13 +0000 (22:08 +0100)]
b43: Fix DMA TX bounce buffer copying

b43 allocates a bouncebuffer, if the supplied TX skb is in an invalid
memory range for DMA.
However, this is broken in that it fails to copy over some metadata to the
new skb.

This patch fixes three problems:
* Failure to adjust the ieee80211_tx_info pointer to the new buffer.
  This results in a kmemcheck warning.
* Failure to copy the skb cb, which contains ieee80211_tx_info, to the new skb.
  This results in breakage of various TX-status postprocessing (Rate control).
* Failure to transfer the queue mapping.
  This results in the wrong queue being stopped on saturation and can result in queue overflow.

Signed-off-by: Michael Buesch <>
Tested-by: Christian Casteyde <>
Signed-off-by: John W. Linville <>
12 years agomac80211: fix BSS leak
Johannes Berg [Wed, 28 Oct 2009 14:12:32 +0000 (15:12 +0100)]
mac80211: fix BSS leak

The IBSS code leaks a BSS struct after telling
cfg80211 about a given BSS by passing a frame.

Signed-off-by: Johannes Berg <>
Signed-off-by: John W. Linville <>
12 years agort73usb.c : more ids
Xose Vazquez Perez [Mon, 19 Oct 2009 09:51:11 +0000 (11:51 +0200)]
rt73usb.c : more ids

stolen from windows inf file(07/17/2009,
Ovislink 0x1b75, 0x7318
MSI 0x0db0, 0x4600
WideTell 0x7167, 0x3840

Signed-off-by: Xose Vazquez Perez <>
Signed-off-by: John W. Linville <>
12 years agoipw2200: fix oops on missing firmware
Zhu Yi [Thu, 15 Oct 2009 06:50:28 +0000 (14:50 +0800)]
ipw2200: fix oops on missing firmware

For non-monitor interfaces, the syntax for alloc_ieee80211/free_80211
is wrong. Because alloc_ieee80211 only creates (wiphy_new) a wiphy, but
free_80211() does wiphy_unregister() also. This is only correct when
the later wiphy_register() is called successfully, which apparently
is not the case for your fw doesn't exist one.

Signed-off-by: Zhu Yi <>
Signed-off-by: John W. Linville <>
12 years agogre: Fix dev_addr clobbering for gretap
Herbert Xu [Fri, 30 Oct 2009 05:51:48 +0000 (05:51 +0000)]
gre: Fix dev_addr clobbering for gretap

Nathan Neulinger noticed that gretap devices get their MAC address
from the local IP address, which results in invalid MAC addresses
half of the time.

This is because gretap is still using the tunnel netdev ops rather
than the correct tap netdev ops struct.

This patch also fixes changelink to not clobber the MAC address
for the gretap case.

Signed-off-by: Herbert Xu <>
Acked-by: Stephen Hemminger <>
Tested-by: Nathan Neulinger <>
Signed-off-by: David S. Miller <>