9 years agoalpha: remove unnecessary cast from void* in assignment.
matt mooney [Tue, 14 Sep 2010 09:27:39 +0000]
alpha: remove unnecessary cast from void* in assignment.

Acked-by: Jan-Benedict Glaw <jbglaw@lug-owl.de>
Signed-off-by: matt mooney <mfm@muteddisk.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>

9 years agoalpha: Use static const char * const where possible
Joe Perches [Tue, 14 Sep 2010 08:23:47 +0000]
alpha: Use static const char * const where possible

Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Fri, 17 Sep 2010 17:53:28 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: pcm - Fix race with proc files
  ALSA: pcm - Fix unbalanced pm_qos_request
  ALSA: HDA: Enable internal speaker on Dell M101z
  ALSA: patch_nvhdmi.c: Fix supported sample rate list.
  sound: Remove pr_<level> uses of KERN_<level>
  ALSA: hda - Add quirk for Toshiba C650D using a Conexant CX20585
  ALSA: hda_intel: ALSA HD Audio patch for Intel Patsburg DeviceIDs

9 years agoMerge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelv...
Linus Torvalds [Fri, 17 Sep 2010 17:25:47 +0000]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/jdelvare/staging

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: (lm95241) Replace rate sysfs attribute with update_interval
  hwmon: (adm1031) Replace update_rate sysfs attribute with update_interval
  hwmon: (w83627ehf) Use proper exit sequence
  hwmon: (emc1403) Remove unnecessary hwmon_device_unregister
  hwmon: (f75375s) Do not overwrite values read from registers
  hwmon: (f75375s) Shift control mode to the correct bit position
  hwmon: New subsystem maintainers
  hwmon: (lis3lv02d) Prevent NULL pointer dereference

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
Linus Torvalds [Fri, 17 Sep 2010 17:23:42 +0000]
Merge git://git./linux/kernel/git/steve/gfs2-2.6-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: gfs2_logd should be using interruptible waits

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394...
Linus Torvalds [Fri, 17 Sep 2010 17:23:08 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/ieee1394/linux1394-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
  firewire: nosy: fix build when CONFIG_FIREWIRE=N
  firewire: ohci: activate cycle timer register quirk on Ricoh chips

9 years agoMerge branch 'for-linus' of git://neil.brown.name/md
Linus Torvalds [Fri, 17 Sep 2010 17:22:48 +0000]
Merge branch 'for-linus' of git://neil.brown.name/md

* 'for-linus' of git://neil.brown.name/md:
  md: fix v1.x metadata update when a disk is missing.
  md: call md_update_sb even for 'external' metadata arrays.

9 years agoarm: fix really nasty sigreturn bug
Al Viro [Fri, 17 Sep 2010 13:34:39 +0000]
arm: fix really nasty sigreturn bug

If a signal hits us outside of a syscall and another gets delivered
when we are in sigreturn (e.g. because it had been in sa_mask for
the first one and got sent to us while we'd been in the first handler),
we have a chance of returning from the second handler to location one
insn prior to where we ought to return.  If r0 happens to contain -513
(-ERESTARTNOINTR), sigreturn will get confused into doing restart
syscall song and dance.

Incredible joy to debug, since it manifests as random, infrequent and
very hard to reproduce double execution of instructions in userland
code...

The fix is simple - mark it "don't bother with restarts" in wrapper,
i.e. set r8 to 0 in sys_sigreturn and sys_rt_sigreturn wrappers,
suppressing the syscall restart handling on return from these guys.
They can't legitimately return a restart-worthy error anyway.

Testcase:
#include <unistd.h>
#include <signal.h>
#include <stdlib.h>
#include <sys/time.h>
#include <errno.h>

void f(int n)
{
__asm__ __volatile__(
"ldr r0, [%0]\n"
"b 1f\n"
"b 2f\n"
"1:b .\n"
"2:\n" : : "r"(&n));
}

void handler1(int sig) { }
void handler2(int sig) { raise(1); }
void handler3(int sig) { exit(0); }

main()
{
struct sigaction s = {.sa_handler = handler2};
struct itimerval t1 = { .it_value = {1} };
struct itimerval t2 = { .it_value = {2} };

signal(1, handler1);

sigemptyset(&s.sa_mask);
sigaddset(&s.sa_mask, 1);
sigaction(SIGALRM, &s, NULL);

signal(SIGVTALRM, handler3);

setitimer(ITIMER_REAL, &t1, NULL);
setitimer(ITIMER_VIRTUAL, &t2, NULL);

f(-513); /* -ERESTARTNOINTR */

write(1, "buggered\n", 9);
return 1;
}

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

9 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Fri, 17 Sep 2010 15:44:20 +0000]
Merge branch 'fix/hda' into for-linus

9 years agohwmon: (lm95241) Replace rate sysfs attribute with update_interval
Guenter Roeck [Fri, 17 Sep 2010 15:24:15 +0000]
hwmon: (lm95241) Replace rate sysfs attribute with update_interval

update_interval is the matching attribute defined in the hwmon sysfs ABI.
Use it.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

9 years agohwmon: (adm1031) Replace update_rate sysfs attribute with update_interval
Guenter Roeck [Fri, 17 Sep 2010 15:24:14 +0000]
hwmon: (adm1031) Replace update_rate sysfs attribute with update_interval

The attribute reflects an interval, not a rate.

Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

9 years agohwmon: (w83627ehf) Use proper exit sequence
Jonas Jonsson [Fri, 17 Sep 2010 15:24:13 +0000]
hwmon: (w83627ehf) Use proper exit sequence

According to the datasheet for Winbond W83627DHG the proper way to exit
the Extended Function Mode is to write 0xaa to the EFER(0x2e or 0x4e).

Signed-off-by: Jonas Jonsson <jonas@ludd.ltu.se>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

9 years agohwmon: (emc1403) Remove unnecessary hwmon_device_unregister
Yong Wang [Fri, 17 Sep 2010 15:24:12 +0000]
hwmon: (emc1403) Remove unnecessary hwmon_device_unregister

It is unnecessary and wrong to call hwmon_device_unregister in error
handling before hwmon_device_register is called.

Signed-off-by: Yong Wang <yong.y.wang@intel.com>
Reviewed-by: Guenter Roeck <guenter.roeck@ericsson.com>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>

9 years agohwmon: (f75375s) Do not overwrite values read from registers
Guillem Jover [Fri, 17 Sep 2010 15:24:12 +0000]
hwmon: (f75375s) Do not overwrite values read from registers

All bits in the values read from registers to be used for the next
write were getting overwritten, avoid doing so to not mess with the
current configuration.

Signed-off-by: Guillem Jover <guillem@hadrons.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>

9 years agohwmon: (f75375s) Shift control mode to the correct bit position
Guillem Jover [Fri, 17 Sep 2010 15:24:11 +0000]
hwmon: (f75375s) Shift control mode to the correct bit position

The spec notes that fan0 and fan1 control mode bits are located in bits
7-6 and 5-4 respectively, but the FAN_CTRL_MODE macro was making the
bits shift by 5 instead of by 4.

Signed-off-by: Guillem Jover <guillem@hadrons.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>

9 years agohwmon: New subsystem maintainers
Jean Delvare [Fri, 17 Sep 2010 15:24:11 +0000]
hwmon: New subsystem maintainers

Guenter Roeck volunteered to adopt the hwmon subsystem as long as he
wasn't the only maintainer. As this was also my own condition, we can
add the two of us as co-maintainers of the hwmon subsystem.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Guenter Roeck <guenter.roeck@ericsson.com>

9 years agohwmon: (lis3lv02d) Prevent NULL pointer dereference
Kuninori Morimoto [Fri, 17 Sep 2010 15:24:10 +0000]
hwmon: (lis3lv02d) Prevent NULL pointer dereference

If CONFIG_PM was selected and lis3lv02d_platform_data was NULL,
the kernel will be panic when halt command run.

Reported-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Sigend-off-by: Jean Delvare <khali@linux-fr.org>

9 years agoGFS2: gfs2_logd should be using interruptible waits
Steven Whitehouse [Thu, 9 Sep 2010 13:45:00 +0000]
GFS2: gfs2_logd should be using interruptible waits

Looks like this crept in, in a recent update.

Reported-by:  Krzysztof Urbaniak <urban@bash.org.pl>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

9 years agomd: fix v1.x metadata update when a disk is missing.
NeilBrown [Wed, 8 Sep 2010 06:48:17 +0000]
md: fix v1.x metadata update when a disk is missing.

If an array with 1.x metadata is assembled with the last disk missing,
md doesn't properly record the fact that the disk was missing.

This is unlikely to cause a real problem as the event count will be
different to the count on the missing disk so it won't be included in
the array.  However it could still cause confusion.

So make sure we clear all the relevant slots, not just the early ones.

Signed-off-by: NeilBrown <neilb@suse.de>

9 years agomd: call md_update_sb even for 'external' metadata arrays.
NeilBrown [Tue, 7 Sep 2010 07:02:47 +0000]
md: call md_update_sb even for 'external' metadata arrays.

Now that we depend on md_update_sb to clear variable bits in
mddev->flags (rather than trying not to set them) it is important to
always call md_update_sb when appropriate.

md_check_recovery has this job but explicitly avoids it for ->external
metadata arrays.  This is not longer appropraite, or needed.

However we do want to avoid taking the mddev lock if only
MD_CHANGE_PENDING is set as that is not cleared by md_update_sb for
external-metadata arrays.

Reported-by:  "Kwolek, Adam" <adam.kwolek@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>

9 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 17 Sep 2010 02:38:08 +0000]
Merge branch 'x86-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: hpet: Work around hardware stupidity
  x86, build: Disable -fPIE when compiling with CONFIG_CC_STACKPROTECTOR=y
  x86, cpufeature: Suppress compiler warning with gcc 3.x
  x86, UV: Fix initialization of max_pnode

9 years agofirewire: nosy: fix build when CONFIG_FIREWIRE=N
Stefan Richter [Wed, 15 Sep 2010 11:02:44 +0000]
firewire: nosy: fix build when CONFIG_FIREWIRE=N

drivers/firewire/nosy* is a stand-alone driver that does not depend on
CONFIG_FIREWIRE.  Hence let make descend into drivers/firewire/ also
if that option is off.

The stand-alone driver drivers/ieee1394/init_ohci1394_dma*  will soon be
moved into drivers/firewire/ too and will require the same makefile fix.

Side effect:
As mentioned in https://bugzilla.novell.com/show_bug.cgi?id=586172#c24
this influences the order in which either firewire-ohci or ohci1394 is
going to be bound to an OHCI-1394 controller in case of a modular build
of both drivers if no modprobe blacklist entries are configured.
However, a user of such a setup cannot expect deterministic behavior
anyway.  The Kconfig help and the migration guide at
ieee1394.wiki.kernel.org recommend blacklist entries when a dual
IEEE 1394 stack build is being used.  (The coexistence period of the two
stacks is planned to end soon.)

Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

9 years agoALSA: pcm - Fix race with proc files
Takashi Iwai [Thu, 16 Sep 2010 21:06:50 +0000]
ALSA: pcm - Fix race with proc files

The PCM proc files may open a race against substream close, which can
end up with an Oops.  Use the open_mutex to protect for it.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

9 years agoALSA: pcm - Fix unbalanced pm_qos_request
Takashi Iwai [Thu, 16 Sep 2010 20:52:32 +0000]
ALSA: pcm - Fix unbalanced pm_qos_request

The pm_qos_request isn't freed properly when OSS PCM emulation is used
because it skips snd_pcm_hw_free() call but directly releases the
stream.  This resulted in Oops later.

Tested-by: Simon Kirby <sim@hostway.ca>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:59:11 +0000]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: fix potential double put of TCP session reference

9 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:58:44 +0000]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] Optimize ticket spinlocks in fsys_rt_sigprocmask

9 years agoMerge branch '2.6.36-fixes' of git://github.com/schandinat/linux-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:56:48 +0000]
Merge branch '2.6.36-fixes' of git://github.com/schandinat/linux-2.6

* '2.6.36-fixes' of git://github.com/schandinat/linux-2.6:
  drivers/video/via/ioctl.c: prevent reading uninitialized stack memory

9 years agoMerge branch 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:56:12 +0000]
Merge branch 'urgent' of git://git./linux/kernel/git/brodo/pcmcia-2.6

* 'urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
  pcmcia pcnet_cs: try setting io_lines to 16 if card setup fails
  pcmcia: per-device, not per-socket debug messages
  pcmcia serial_cs.c: fix multifunction card handling

9 years agoMerge git://git.infradead.org/users/cbou/battery-2.6.36
Linus Torvalds [Thu, 16 Sep 2010 19:55:44 +0000]
Merge git://git.infradead.org/users/cbou/battery-2.6.36

* git://git.infradead.org/users/cbou/battery-2.6.36:
  apm_power: Add missing break statement
  intel_pmic_battery: Fix battery charging status on mrst

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog
Linus Torvalds [Thu, 16 Sep 2010 19:55:16 +0000]
Merge git://git./linux/kernel/git/wim/linux-2.6-watchdog

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  watchdog: Enable NXP LPC32XX support in Kconfig (resend)
  watchdog: ts72xx_wdt: disable watchdog at probe
  watchdog: sb_wdog: release irq and reboot notifier in error path and module_exit()

9 years agoMerge branch 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux...
Linus Torvalds [Thu, 16 Sep 2010 19:54:54 +0000]
Merge branch 'stable' of git://git./linux/kernel/git/cmetcalf/linux-tile

* 'stable' of git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile:
  arch/tile: fix formatting bug in register dumps
  arch/tile: fix memcpy_fromio()/memcpy_toio() signatures
  arch/tile: Save and restore extra user state for tilegx
  arch/tile: Change struct sigcontext to be more useful
  arch/tile: finish const-ifying sys_execve()

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
Linus Torvalds [Thu, 16 Sep 2010 19:54:39 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6:
  regulator: wm8350-regulator - fix the logic of checking REGULATOR_MODE_STANDBY mode
  regulator: wm831x-ldo - fix the logic to set REGULATOR_MODE_IDLE and REGULATOR_MODE_STANDBY modes
  regulator: ab8500 - fix off-by-one value range checking for selector
  regulator: 88pm8607 - fix value range checking for accessing info->vol_table
  regulator: isl6271a-regulator - fix regulator_desc parameter for regulator_register()
  regulator: ad5398 - fix a memory leak
  regulator: Update e-mail address for Liam Girdwood
  regulator: set max8998->dev to &pdev->dev.
  regulator: tps6586x-regulator - fix bit_mask parameter for tps6586x_set_bits()
  regulator: tps6586x-regulator - fix value range checking for val
  regulator: max8998 - set max8998->num_regulators
  regulator: max8998 - fix memory allocation size for max8998->rdev
  regulator: tps6507x - remove incorrect comments
  regulator: max1586 - improve the logic of choosing selector
  regulator: ab8500 - fix the logic to remove already registered regulators in error path
  regulator: ab3100 - fix the logic to remove already registered regulators in error path
  regulator/ab8500: move dereference below the check for NULL

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Linus Torvalds [Thu, 16 Sep 2010 19:50:31 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/tj/wq

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  workqueue: add documentation

9 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Thu, 16 Sep 2010 19:48:58 +0000]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: only warn on mipmap size checks in r600 cs checker (v2)
  drm/radeon/kms: force legacy pll algo for RV620 LVDS
  drm: fix race between driver loading and userspace open.
  drm: Use a nondestructive mode for output detect when polling (v2)
  drm/radeon/kms: fix the colorbuffer CS checker for r300-r500
  drm/radeon/kms: increase lockup detection interval to 10 sec for r100-r500
  drm/radeon/kms/evergreen: fix backend setup
  drm: Use a nondestructive mode for output detect when polling
  drm/radeon: add some missing copyright headers
  drm: Only decouple the old_fb from the crtc is we call mode_set*
  drm/radeon/kms: don't enable underscan with interlaced modes
  drm/radeon/kms: add connector table for Mac x800
  drm/radeon/kms: fix regression in RMX code (v2)
  drm: Fix regression in disable polling e58f637

9 years agoALSA: HDA: Enable internal speaker on Dell M101z
David Henningsson [Thu, 16 Sep 2010 08:07:53 +0000]
ALSA: HDA: Enable internal speaker on Dell M101z

BugLink: http://launchpad.net/bugs/640254

In some cases a magic processing coefficient is needed to enable
the internal speaker on Dell M101z. According to Realtek, this
processing coefficient is only present on ALC269vb.

Cc: stable@kernel.org
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

9 years agodrivers/video/via/ioctl.c: prevent reading uninitialized stack memory
Dan Rosenberg [Wed, 15 Sep 2010 23:08:24 +0000]
drivers/video/via/ioctl.c: prevent reading uninitialized stack memory

The VIAFB_GET_INFO device ioctl allows unprivileged users to read 246
bytes of uninitialized stack memory, because the "reserved" member of
the viafb_ioctl_info struct declared on the stack is not altered or
zeroed before being copied back to the user.  This patch takes care of
it.

Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

9 years ago[IA64] Optimize ticket spinlocks in fsys_rt_sigprocmask
Petr Tesarik [Wed, 15 Sep 2010 22:35:48 +0000]
[IA64] Optimize ticket spinlocks in fsys_rt_sigprocmask

Tony's fix (f574c843191728d9407b766a027f779dcd27b272) has a small bug,
it incorrectly uses "r3" as a scratch register in the first of the two
unlock paths ... it is also inefficient.  Optimize the fast path again.

Signed-off-by: Petr Tesarik <ptesarik@suse.cz>
Signed-off-by: Tony Luck <tony.luck@intel.com>

9 years agowatchdog: Enable NXP LPC32XX support in Kconfig (resend)
Kevin Wells [Wed, 18 Aug 2010 00:45:28 +0000]
watchdog: Enable NXP LPC32XX support in Kconfig (resend)

The NXP LPC32XX processor use the same watchdog as the Philips
PNX4008 processor.

Signed-off-by: Kevin Wells <wellsk40@gmail.com>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

9 years agowatchdog: ts72xx_wdt: disable watchdog at probe
Mika Westerberg [Sun, 29 Aug 2010 10:53:14 +0000]
watchdog: ts72xx_wdt: disable watchdog at probe

Since it may be already enabled by bootloader or some other utility. This patch
makes sure that the watchdog is disabled before any userspace daemon opens the
device. It is also required by the watchdog API.

Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

9 years agowatchdog: sb_wdog: release irq and reboot notifier in error path and module_exit()
Akinobu Mita [Sat, 21 Aug 2010 09:27:50 +0000]
watchdog: sb_wdog: release irq and reboot notifier in error path and module_exit()

irq and reboot notifier are acquired in module_init() but never released.
They should be released correctly, otherwise reloading the module or error
during module_init() will cause a problem.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Andrew Sharp <andy.sharp@lsi.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

9 years agopcmcia pcnet_cs: try setting io_lines to 16 if card setup fails
Dominik Brodowski [Mon, 13 Sep 2010 18:23:12 +0000]
pcmcia pcnet_cs: try setting io_lines to 16 if card setup fails

Some pcnet_cs compatible cards require an exact 16-lines match
of the ioport areas specified in CIS, but set the "iolines"
value in the CIS incorrectly. We can easily work around this
issue -- same as we do in serial_cs -- by first trying setting
iolines to the CIS-specified value, and then trying a 16-line
match.

Reported-and-tested-by: Wolfram Sang <w.sang@pengutronix.de>
Hardware-supplied-by: Jochen Frieling <j.frieling@pengutronix.de>
CC: netdev@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

9 years agopcmcia: per-device, not per-socket debug messages
Dominik Brodowski [Mon, 13 Sep 2010 14:51:36 +0000]
pcmcia: per-device, not per-socket debug messages

As the iomem / ioport setup differs per device, it is much better
to print out the device instead of the socket.

Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

9 years agopcmcia serial_cs.c: fix multifunction card handling
Dominik Brodowski [Mon, 30 Aug 2010 06:18:54 +0000]
pcmcia serial_cs.c: fix multifunction card handling

We shouldn't overwrite pre-set values, and we should also
set the port address to the beginning, and not the end of
the 8-port range.

CC: linux-serial@vger.kernel.org
Reported-by: Komuro <komurojun-mbn@nifty.com>
Hardware-supplied-by: Jochen Frieling <j.frieling@pengutronix.de>
Tested-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>

9 years agoarch/tile: fix formatting bug in register dumps
Chris Metcalf [Wed, 15 Sep 2010 15:17:05 +0000]
arch/tile: fix formatting bug in register dumps

This cut-and-paste bug was caused by rewriting the register dump
code to use only a single printk per line of output.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

9 years agoarch/tile: fix memcpy_fromio()/memcpy_toio() signatures
Chris Metcalf [Wed, 15 Sep 2010 15:17:04 +0000]
arch/tile: fix memcpy_fromio()/memcpy_toio() signatures

This tripped up a driver (not yet committed to git).  Fix it now.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

9 years agoarch/tile: Save and restore extra user state for tilegx
Chris Metcalf [Wed, 15 Sep 2010 15:16:10 +0000]
arch/tile: Save and restore extra user state for tilegx

During context switch, save and restore a couple of additional bits of
tilegx user state that can be persistently modified by userspace.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

9 years agoarch/tile: Change struct sigcontext to be more useful
Chris Metcalf [Wed, 15 Sep 2010 15:16:08 +0000]
arch/tile: Change struct sigcontext to be more useful

Rather than just using pt_regs, it now contains the actual saved
state explicitly, similar to pt_regs.  By doing it this way, we
provide a cleaner API for userspace (or equivalently, we avoid the
need for libc to provide its own definition of sigcontext).

While we're at it, move PT_FLAGS_xxx to where they are not visible
from userspace.  And always pass siginfo and mcontext to signal
handlers, even if they claim they don't need it, since sometimes
they actually try to use it anyway in practice.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

9 years agoarch/tile: finish const-ifying sys_execve()
Chris Metcalf [Wed, 15 Sep 2010 15:16:05 +0000]
arch/tile: finish const-ifying sys_execve()

The sys_execve() implementation was properly const-ified but not
the declaration, the syscall wrappers, or the compat version.
This change completes the constification process.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>

9 years agodrm/radeon/kms: only warn on mipmap size checks in r600 cs checker (v2)
Alex Deucher [Tue, 14 Sep 2010 14:10:47 +0000]
drm/radeon/kms: only warn on mipmap size checks in r600 cs checker (v2)

The texture base address registers are in units of 256 bytes.
The original CS checker treated these offsets as bytes, so the
original check was wrong.  I fixed the units in a patch during
the 2.6.36 cycle, but this ended up breaking some existing
userspace (probably due to a bug in either userspace texture allocation
or the drm texture mipmap checker).  So for now, until we come
up with a better fix, just warn if the mipmap size it too large.
This will keep existing userspace working and it should be just
as safe as before when we were checking the wrong units.  These
are GPU MC addresses, so if they fall outside of the VRAM or
GART apertures, they end up at the GPU default page, so this should
be safe from a security perspective.

v2: Just disable the warning.  It just spams the log and there's
nothing the user can do about it.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: Jerome Glisse <glisse@freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agoMerge ssh://master.kernel.org/home/hpa/tree/sec
Linus Torvalds [Wed, 15 Sep 2010 00:07:51 +0000]
Merge ssh://master.kernel.org/home/hpa/tree/sec

* ssh://master.kernel.org/home/hpa/tree/sec:
  x86-64, compat: Retruncate rax after ia32 syscall entry tracing
  x86-64, compat: Test %rax for the syscall number, not %eax
  compat: Make compat_alloc_user_space() incorporate the access_ok()

9 years agoMN10300: Fix up the IRQ names for the on-chip serial ports
David Howells [Tue, 14 Sep 2010 16:59:15 +0000]
MN10300: Fix up the IRQ names for the on-chip serial ports

Fix up the IRQ names for the MN10300 on-chip serial ports in the driver as
request_interrupt() no longer allows names containing slashes, giving a warning
like the following if one is encountered:

------------[ cut here ]------------
WARNING: at fs/proc/generic.c:323 __xlate_proc_name+0x62/0x7c()
name 'ttySM0/Rx'

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

9 years agoMerge git://git.infradead.org/mtd-2.6
Linus Torvalds [Wed, 15 Sep 2010 00:05:39 +0000]
Merge git://git.infradead.org/mtd-2.6

* git://git.infradead.org/mtd-2.6:
  mtd: pxa3xx: fix build error when CONFIG_MTD_PARTITIONS is not defined
  mtd: mxc_nand: configure pages per block for v2 controller
  mtd: OneNAND: Fix loop hang when DMA error at Samsung SoCs
  mtd: OneNAND: Fix 2KiB pagesize handling at Samsung SoCs
  mtd: Blackfin NFC: fix invalid free in remove()
  mtd: Blackfin NFC: fix build error after nand_scan_ident() change
  mxc_nand: Do not do byte accesses to the NFC buffer.

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Wed, 15 Sep 2010 00:05:09 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: fix hiddev's use of usb_find_interface
  HID: fixup blacklist entry for Asus T91MT
  HID: add device ID for new Asus Multitouch Controller
  HID: add no-get quirk for eGalax touch controller
  HID: Add quirk for eGalax touch controler.
  HID: add support for another BTC Emprex remote control
  HID: Set Report ID properly for Output reports on the Control endpoint.
  HID: Kanvus Note A5 tablet needs HID_QUIRK_MULTI_INPUT
  HID: Add support for chicony multitouch screens.

9 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Wed, 15 Sep 2010 00:04:48 +0000]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  SUNRPC: Fix the NFSv4 and RPCSEC_GSS Kconfig dependencies
  statfs() gives ESTALE error
  NFS: Fix a typo in nfs_sockaddr_match_ipaddr6
  sunrpc: increase MAX_HASHTABLE_BITS to 14
  gss:spkm3 miss returning error to caller when import security context
  gss:krb5 miss returning error to caller when import security context
  Remove incorrect do_vfs_lock message
  SUNRPC: cleanup state-machine ordering
  SUNRPC: Fix a race in rpc_info_open
  SUNRPC: Fix race corrupting rpc upcall
  Fix null dereference in call_allocate

9 years agoaio: check for multiplication overflow in do_io_submit
Jeff Moyer [Fri, 10 Sep 2010 21:16:00 +0000]
aio: check for multiplication overflow in do_io_submit

Tavis Ormandy pointed out that do_io_submit does not do proper bounds
checking on the passed-in iocb array:

       if (unlikely(nr < 0))
               return -EINVAL;

       if (unlikely(!access_ok(VERIFY_READ, iocbpp, (nr*sizeof(iocbpp)))))
               return -EFAULT;                      ^^^^^^^^^^^^^^^^^^

The attached patch checks for overflow, and if it is detected, the
number of iocbs submitted is scaled down to a number that will fit in
the long.  This is an ok thing to do, as sys_io_submit is documented as
returning the number of iocbs submitted, so callers should handle a
return value of less than the 'nr' argument passed in.

Reported-by: Tavis Ormandy <taviso@cmpxchg8b.com>
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

9 years agocifs: fix potential double put of TCP session reference
Jeff Layton [Tue, 14 Sep 2010 15:38:24 +0000]
cifs: fix potential double put of TCP session reference

cifs_get_smb_ses must be called on a server pointer on which it holds an
active reference. It first does a search for an existing SMB session. If
it finds one, it'll put the server reference and then try to ensure that
the negprot is done, etc.

If it encounters an error at that point then it'll return an error.
There's a potential problem here though. When cifs_get_smb_ses returns
an error, the caller will also put the TCP server reference leading to a
double-put.

Fix this by having cifs_get_smb_ses only put the server reference if
it found an existing session that it could use and isn't returning an
error.

Cc: stable@kernel.org
Reviewed-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

9 years agox86-64, compat: Retruncate rax after ia32 syscall entry tracing
Roland McGrath [Tue, 14 Sep 2010 19:22:58 +0000]
x86-64, compat: Retruncate rax after ia32 syscall entry tracing

In commit d4d6715, we reopened an old hole for a 64-bit ptracer touching a
32-bit tracee in system call entry.  A %rax value set via ptrace at the
entry tracing stop gets used whole as a 32-bit syscall number, while we
only check the low 32 bits for validity.

Fix it by truncating %rax back to 32 bits after syscall_trace_enter,
in addition to testing the full 64 bits as has already been added.

Reported-by: Ben Hawkes <hawkes@sota.gen.nz>
Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

9 years agox86-64, compat: Test %rax for the syscall number, not %eax
H. Peter Anvin [Tue, 14 Sep 2010 19:42:41 +0000]
x86-64, compat: Test %rax for the syscall number, not %eax

On 64 bits, we always, by necessity, jump through the system call
table via %rax.  For 32-bit system calls, in theory the system call
number is stored in %eax, and the code was testing %eax for a valid
system call number.  At one point we loaded the stored value back from
the stack to enforce zero-extension, but that was removed in checkin
d4d67150165df8bf1cc05e532f6efca96f907cab.  An actual 32-bit process
will not be able to introduce a non-zero-extended number, but it can
happen via ptrace.

Instead of re-introducing the zero-extension, test what we are
actually going to use, i.e. %rax.  This only adds a handful of REX
prefixes to the code.

Reported-by: Ben Hawkes <hawkes@sota.gen.nz>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@kernel.org>
Cc: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>

9 years agocompat: Make compat_alloc_user_space() incorporate the access_ok()
H. Peter Anvin [Tue, 7 Sep 2010 23:16:18 +0000]
compat: Make compat_alloc_user_space() incorporate the access_ok()

compat_alloc_user_space() expects the caller to independently call
access_ok() to verify the returned area.  A missing call could
introduce problems on some architectures.

This patch incorporates the access_ok() check into
compat_alloc_user_space() and also adds a sanity check on the length.
The existing compat_alloc_user_space() implementations are renamed
arch_compat_alloc_user_space() and are used as part of the
implementation of the new global function.

This patch assumes NULL will cause __get_user()/__put_user() to either
fail or access userspace on all architectures.  This should be
followed by checking the return value of compat_access_user_space()
for NULL in the callers, at which time the access_ok() in the callers
can also be removed.

Reported-by: Ben Hawkes <hawkes@sota.gen.nz>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: James Bottomley <jejb@parisc-linux.org>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: <stable@kernel.org>

9 years agox86: hpet: Work around hardware stupidity
Thomas Gleixner [Tue, 14 Sep 2010 20:10:21 +0000]
x86: hpet: Work around hardware stupidity

This more or less reverts commits 08be979 (x86: Force HPET
readback_cmp for all ATI chipsets) and 30a564be (x86, hpet: Restrict
read back to affected ATI chipsets) to the status of commit 8da854c
(x86, hpet: Erratum workaround for read after write of HPET
comparator).

The delta to commit 8da854c is mostly comments and the change from
WARN_ONCE to printk_once as we know the call path of this function
already.

This needs really in depth explanation:

First of all the HPET design is a complete failure. Having a counter
compare register which generates an interrupt on matching values
forces the software to do at least one superfluous readback of the
counter register.

While it is nice in theory to program "absolute" time events it is
practically useless because the timer runs at some absurd frequency
which can never be matched to real world units. So we are forced to
calculate a relative delta and this forces a readout of the actual
counter value, adding the delta and programming the compare
register. When the delta is small enough we run into the danger that
we program a compare value which is already in the past. Due to the
compare for equal nature of HPET we need to read back the counter
value after writing the compare rehgister (btw. this is necessary for
absolute timeouts as well) to make sure that we did not miss the timer
event. We try to work around that by setting the minimum delta to a
value which is larger than the theoretical time which elapses between
the counter readout and the compare register write, but that's only
true in theory. A NMI or SMI which hits between the readout and the
write can easily push us beyond that limit. This would result in
waiting for the next HPET timer interrupt until the 32bit wraparound
of the counter happens which takes about 306 seconds.

So we designed the next event function to look like:

   match = read_cnt() + delta;
   write_compare_ref(match);
   return read_cnt() < match ? 0 : -ETIME;

At some point we got into trouble with certain ATI chipsets. Even the
above "safe" procedure failed. The reason was that the write to the
compare register was delayed probably for performance reasons. The
theory was that they wanted to avoid the synchronization of the write
with the HPET clock, which is understandable. So the write does not
hit the compare register directly instead it goes to some intermediate
register which is copied to the real compare register in sync with the
HPET clock. That opens another window for hitting the dreaded "wait
for a wraparound" problem.

To work around that "optimization" we added a read back of the compare
register which either enforced the update of the just written value or
just delayed the readout of the counter enough to avoid the issue. We
unfortunately never got any affirmative info from ATI/AMD about this.

One thing is sure, that we nuked the performance "optimization" that
way completely and I'm pretty sure that the result is worse than
before some HW folks came up with those.

Just for paranoia reasons I added a check whether the read back
compare register value was the same as the value we wrote right
before. That paranoia check triggered a couple of years after it was
added on an Intel ICH9 chipset. Venki added a workaround (commit
8da854c) which was reading the compare register twice when the first
check failed. We considered this to be a penalty in general and
restricted the readback (thus the wasted CPU cycles) to the known to
be affected ATI chipsets.

This turned out to be a utterly wrong decision. 2.6.35 testers
experienced massive problems and finally one of them bisected it down
to commit 30a564be which spured some further investigation.

Finally we got confirmation that the write to the compare register can
be delayed by up to two HPET clock cycles which explains the problems
nicely. All we can do about this is to go back to Venki's initial
workaround in a slightly modified version.

Just for the record I need to say, that all of this could have been
avoided if hardware designers and of course the HPET committee would
have thought about the consequences for a split second. It's out of my
comprehension why designing a working timer is so hard. There are two
ways to achieve it:

 1) Use a counter wrap around aware compare_reg <= counter_reg
    implementation instead of the easy compare_reg == counter_reg

    Downsides:

- It needs more silicon.

- It needs a readout of the counter to apply a relative
  timeout. This is necessary as the counter does not run in
  any useful (and adjustable) frequency and there is no
  guarantee that the counter which is used for timer events is
  the same which is used for reading the actual time (and
  therefor for calculating the delta)

    Upsides:

- None

  2) Use a simple down counter for relative timer events

    Downsides:

- Absolute timeouts are not possible, which is not a problem
  at all in the context of an OS and the expected
  max. latencies/jitter (also see Downsides of #1)

   Upsides:

- It needs less or equal silicon.

- It works ALWAYS

- It is way faster than a compare register based solution (One
  write versus one write plus at least one and up to four
  reads)

I would not be so grumpy about all of this, if I would not have been
ignored for many years when pointing out these flaws to various
hardware folks. I really hate timers (at least those which seem to be
designed by janitors).

Though finally we got a reasonable explanation plus a solution and I
want to thank all the folks involved in chasing it down and providing
valuable input to this.

Bisected-by: Nix <nix@esperi.org.uk>
Reported-by: Artur Skawina <art.08.09@gmail.com>
Reported-by: Damien Wyart <damien.wyart@free.fr>
Reported-by: John Drescher <drescherjm@gmail.com>
Cc: Venkatesh Pallipadi <venki@google.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Cc: stable@kernel.org
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

9 years agoALSA: patch_nvhdmi.c: Fix supported sample rate list.
Stephen Warren [Tue, 14 Sep 2010 16:48:59 +0000]
ALSA: patch_nvhdmi.c: Fix supported sample rate list.

22050 isn't a valid HDMI sample rate. 32000 is.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-By: Wei Ni <wni@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

9 years agodrm/radeon/kms: force legacy pll algo for RV620 LVDS
Alex Deucher [Tue, 7 Sep 2010 15:42:45 +0000]
drm/radeon/kms: force legacy pll algo for RV620 LVDS

There has been periodic evidence that LVDS, on at least some
panels, prefers the dividers selected by the legacy pll algo.
This patch forces the use of the legacy pll algo on RV620
LVDS panels.  The old behavior (new pll algo) can be selected
by setting the new_pll module parameter to 1.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=30029

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm: fix race between driver loading and userspace open.
Dave Airlie [Tue, 14 Sep 2010 10:14:38 +0000]
drm: fix race between driver loading and userspace open.

Not 100% sure this is due to BKL removal, its most likely a combination
of that + userspace timing changes in udev/plymouth. The drm adds the sysfs
device before the driver has completed internal loading, this causes udev
to make the node and plymouth to open it before we've completed loading.

The proper solution is to delay the sysfs manipulation until later in loading
however this causes knock on issues with sysfs connector nodes, so we can use
the global mutex to serialise loading and userspace opens.

Reported-by: Toni Spets (hifi on #radeon)
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm: Use a nondestructive mode for output detect when polling (v2)
Chris Wilson [Tue, 14 Sep 2010 10:07:23 +0000]
drm: Use a nondestructive mode for output detect when polling (v2)

v2: Julien Cristau pointed out that @nondestructive results in
double-negatives and confusion when trying to interpret the parameter,
so use @force instead. Much easier to type as well. ;-)

And fix the miscompilation of vmgfx reported by Sedat Dilek.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agoHID: fix hiddev's use of usb_find_interface
Guillaume Chazarain [Sun, 12 Sep 2010 19:32:35 +0000]
HID: fix hiddev's use of usb_find_interface

My macbook infrared remote control was broken by commit
bd25f4dd6972755579d0ea50d1a5ace2e9b00d1a ("HID: hiddev: use
usb_find_interface, get rid of BKL").

This device appears in dmesg as:
apple 0003:05AC:8242.0001: hiddev0,hidraw0: USB HID v1.11 Device
[Apple Computer, Inc. IR Receiver] on usb-0000:00:1d.2-1/input0

It stopped working as lircd was getting ENODEV when opening /dev/usb/hiddev0.

AFAICS hiddev_driver is a dummy driver so usb_find_interface(&hiddev_driver)
does not find anything.

The device is associated with the usbhid driver, so let's do
usb_find_interface(&hid_driver) instead.

$ ls -l /sys/devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/usb/hiddev0/device/driver
lrwxrwxrwx 1 root root 0 2010-09-12 16:28 /sys/devices/pci0000:00/0000:00:1d.2/usb7/7-1/7-1:1.0/usb/hiddev0/device/driver -> ../../../../../../bus/usb/drivers/usbhid

Signed-off-by: Guillaume Chazarain <guichaz@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

9 years agox86, build: Disable -fPIE when compiling with CONFIG_CC_STACKPROTECTOR=y
basile@opensource.dyc.edu [Mon, 13 Sep 2010 10:13:19 +0000]
x86, build: Disable -fPIE when compiling with CONFIG_CC_STACKPROTECTOR=y

The arch/x86/Makefile uses scripts/gcc-x86_$(BITS)-has-stack-protector.sh
to check if cc1 supports -fstack-protector.  When -fPIE is passed to cc1,
these scripts fail causing stack protection to be disabled even when it
is available.

This fix is similar to commit c47efe5548abbf53c2f66e06dcb46183b11d6b22

Reported-by: Kai Dietrich <mail@cleeus.de>
Signed-off-by: Magnus Granberg <zorry@gentoo.org>
LKML-Reference: <20100913101319.748A1148E216@opensource.dyc.edu>
Signed-off-by: Anthony G. Basile <basile@opensource.dyc.edu>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

9 years agox86, cpufeature: Suppress compiler warning with gcc 3.x
Tetsuo Handa [Mon, 30 Aug 2010 00:45:40 +0000]
x86, cpufeature: Suppress compiler warning with gcc 3.x

Gcc 3.x generates a warning

  arch/x86/include/asm/cpufeature.h: In function `__static_cpu_has':
  arch/x86/include/asm/cpufeature.h:326: warning: asm operand 1 probably doesn't match constraints

on each file.
But static_cpu_has() for gcc 3.x does not need __static_cpu_has().

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
LKML-Reference: <201008300127.o7U1RC6Z044051@www262.sakura.ne.jp>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

9 years agosound: Remove pr_<level> uses of KERN_<level>
Joe Perches [Sun, 12 Sep 2010 05:10:59 +0000]
sound: Remove pr_<level> uses of KERN_<level>

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

9 years agoMerge branch 'sched/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip...
Linus Torvalds [Mon, 13 Sep 2010 21:34:27 +0000]
Merge branch 'sched/urgent' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Improve latencies under load by decreasing minimum scheduling granularity

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux...
Linus Torvalds [Mon, 13 Sep 2010 19:51:22 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/geert/linux-m68k

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k,m68knommu: Wire up fanotify_init, fanotify_mark, and prlimit64

9 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
Linus Torvalds [Mon, 13 Sep 2010 19:49:55 +0000]
Merge branch 'release' of git://git./linux/kernel/git/aegl/linux-2.6

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] fix siglock

Quoth Tony:

 "I committed the fix for this last week prior to your -rc4 announcement
  reminding us to give proper "Reported-by:" credit.  This one should have
  had:

  Reported-by: Tony Ernst <tee@sgi.com>

  and also

  Much-useful-investigation-and-tracing-by: Hedi Berriche <hedi@sgi.com>
  Much-useful-investigation-and-tracing-by: Petr Tesarik <ptesarik@novell.com>"

9 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Mon, 13 Sep 2010 19:47:08 +0000]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: prevent possible memory corruption in cifs_demultiplex_thread
  cifs: eliminate some more premature cifsd exits
  cifs: prevent cifsd from exiting prematurely
  [CIFS] ntlmv2/ntlmssp remove-unused-function CalcNTLMv2_partial_mac_key
  cifs: eliminate redundant xdev check in cifs_rename
  Revert "[CIFS] Fix ntlmv2 auth with ntlmssp"
  Revert "missing changes during ntlmv2/ntlmssp auth and sign"
  Revert "Eliminate sparse warning - bad constant expression"
  Revert "[CIFS] Eliminate unused variable warning"

9 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh...
Linus Torvalds [Mon, 13 Sep 2010 19:46:35 +0000]
Merge branch 'for-linus' of git://git./linux/kernel/git/ericvh/v9fs

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs:
  fs/9p: Don't use dotl version of mknod for dotu inode operations
  fs/9p: Use the correct dentry operations
  9p: Check for NULL fid in v9fs_dir_release()
  fs/9p: Fix error handling in v9fs_get_sb
  fs/9p, net/9p: memory leak fixes

9 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux...
Linus Torvalds [Mon, 13 Sep 2010 19:46:09 +0000]
Merge branch 'for_linus' of git://git./linux/kernel/git/jack/linux-fs-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  dquot: do full inode dirty in allocating space

9 years agoMerge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6
Linus Torvalds [Mon, 13 Sep 2010 19:45:50 +0000]
Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6

* 'next-spi' of git://git.secretlab.ca/git/linux-2.6:
  spi/pl022: move probe call to subsys_initcall()
  powerpc/5200: mpc52xx_uart.c: Add of_node_put to avoid memory leak
  spi/pl022: fix APB pclk power regression on U300
  spi/spi_s3c64xx: Warn if PIO transfers time out
  spi/s3c64xx: Fix incorrect reuse of 'val' local variable.
  spi/s3c64xx: Fix compilation warning
  spi/dw_spi: clean the cs_control code
  spi/dw_spi: Allow interrupt sharing
  spi/spi_s3c64xx: Increase dead reckoning time in wait_for_xfer()
  spi/spi_s3c64xx: Move to subsys_initcall()
  spi: free children in spi_unregister_master, not siblings
  gpiolib: Add 'struct gpio_chip' forward declaration for !GPIOLIB case
  of: Fix missing includes - ll_temac
  spi/spi_s3c64xx: Staticise non-exported functions
  spi/spi_s3c64xx: Make probe more robust against missing board config

9 years agom68k,m68knommu: Wire up fanotify_init, fanotify_mark, and prlimit64
Geert Uytterhoeven [Mon, 16 Aug 2010 12:05:20 +0000]
m68k,m68knommu: Wire up fanotify_init, fanotify_mark, and prlimit64

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer <gerg@uclinux.org>

9 years agosched: Improve latencies under load by decreasing minimum scheduling granularity
Ingo Molnar [Sun, 12 Sep 2010 06:14:52 +0000]
sched: Improve latencies under load by decreasing minimum scheduling granularity

Mathieu reported bad latencies with make -j10 kind of kbuild
workloads - which is mostly caused by us scheduling with a
too coarse granularity.

Reduce the minimum granularity some more, to make sure we
can meet the latency target.

I got the following results (make -j10 kbuild load, average of 3
runs):

 vanilla:

  maximum latency: 38278.9 µs
  average latency:  7730.1 µs

 patched:

  maximum latency: 22702.1 µs
  average latency:  6684.8 µs

Mathieu also measured it:

|
| * wakeup-latency.c (SIGEV_THREAD) with make -j10
|
| - Mainline 2.6.35.2 kernel
|
| maximum latency: 45762.1 µs
| average latency: 7348.6 µs
|
| - With only Peter's smaller min_gran (shown below):
|
| maximum latency: 29100.6 µs
| average latency: 6684.1 µs
|

Reported-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <AANLkTi=8m4g01wZPacySoF7U0PevTNVgJoZZrHiUD-pN@mail.gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

9 years agofs/9p: Don't use dotl version of mknod for dotu inode operations
Aneesh Kumar K.V [Mon, 30 Aug 2010 17:43:07 +0000]
fs/9p: Don't use dotl version of mknod for dotu inode operations

We should not use dotlversion for the dotu inode operations

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

9 years agofs/9p: Use the correct dentry operations
Aneesh Kumar K.V [Mon, 30 Aug 2010 16:04:35 +0000]
fs/9p: Use the correct dentry operations

We should use the cached dentry operation only if caching mode is enabled

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

9 years ago9p: Check for NULL fid in v9fs_dir_release()
jvrao [Wed, 25 Aug 2010 16:26:21 +0000]
9p: Check for NULL fid in v9fs_dir_release()

NULL fid should be handled in cases where we endup calling v9fs_dir_release()
before even we instantiate the fid in filp.

Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

9 years agofs/9p: Fix error handling in v9fs_get_sb
Aneesh Kumar K.V [Tue, 24 Aug 2010 10:30:49 +0000]
fs/9p: Fix error handling in v9fs_get_sb

This was introduced by 7cadb63d58a932041afa3f957d5cbb6ce69dcee5

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

9 years agofs/9p, net/9p: memory leak fixes
Latchesar Ionkov [Tue, 24 Aug 2010 18:13:59 +0000]
fs/9p, net/9p: memory leak fixes

Four memory leak fixes in the 9P code.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

9 years agoALSA: hda - Add quirk for Toshiba C650D using a Conexant CX20585
Anisse Astier [Fri, 10 Sep 2010 13:47:55 +0000]
ALSA: hda - Add quirk for Toshiba C650D using a Conexant CX20585

Add a quirk for laptop Toshiba Satellite C650D to have proper external HP and
external Mic support.

Signed-off-by: Anisse Astier <anisse@astier.eu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

9 years agodrm/radeon/kms: fix the colorbuffer CS checker for r300-r500
Marek Olšák [Sun, 12 Sep 2010 03:09:13 +0000]
drm/radeon/kms: fix the colorbuffer CS checker for r300-r500

This commit fixes bogus CS rejection if it contains a sequence
of the following operations:

- Set the color buffer 0. track->cb[i].robj becomes non-NULL.
- Render.
- Set a larger zbuffer than the previously-set color buffer.
- Set a larger scissor area as well.
- Set the color channel mask to 0 to do depth-only rendering.
- Render. --> rejected, because track->cb[i].robj remained non-NULL,
  therefore the conditional checking for the color channel mask and
  friends is not performed, and the larger scissor area causes
  the rejection.

This fixes bugs:
- https://bugs.freedesktop.org/show_bug.cgi?id=29762
- https://bugs.freedesktop.org/show_bug.cgi?id=28869
And maybe some others which seem to look the same.

If possible, this commit should go to stable as well.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: increase lockup detection interval to 10 sec for r100-r500
Marek Olšák [Sun, 12 Sep 2010 03:09:12 +0000]
drm/radeon/kms: increase lockup detection interval to 10 sec for r100-r500

One subtest of mesa/demos/gltestperf takes 9 seconds to complete,
so to prevent an unnecessary gpu reset followed by a hardlock, I am
increasing the interval to 10 seconds after which a GPU is considered
in a locked-up state. This is on RV530. However, with a little slower GPU,
we would surpass the interval easily, so this is not a good fix
for gltestperf.

Nevertheless, this commit also fixes hardlocks in the applications which
render at speed of less than 1 frame per second, where the whole frame
consists of only one command stream. The game Tiny & Big is an example.
This bar is now lowered to 0.1 fps.

Now the question comes down to whether we should (often unsuccessfully)
reset the GPU at all? Once we have stable enough drivers, we won't have to.
Has the time come already?

If possible, this commit should go to stable as well.

Signed-off-by: Marek Olšák <maraeo@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms/evergreen: fix backend setup
Alex Deucher [Thu, 9 Sep 2010 23:15:23 +0000]
drm/radeon/kms/evergreen: fix backend setup

This patch fixes rendering errors on some evergreen boards.
Hardcoding the backend map is not an optimal solution, but
a better fix is being worked on.

Similar to the fix for rv740
(6271901d828b34b27607314026deaf417f9f9b75).

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=29986

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm: Use a nondestructive mode for output detect when polling
Chris Wilson [Thu, 9 Sep 2010 22:51:02 +0000]
drm: Use a nondestructive mode for output detect when polling

Destructive load-detection is very expensive and due to failings
elsewhere can trigger system wide stalls of up to 600ms. A simple
first step to correcting this is not to invoke such an expensive
and destructive load-detection operation automatically.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29536
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16265
Reported-by: Bruno Prémont <bonbons@linux-vserver.org>
Tested-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon: add some missing copyright headers
Alex Deucher [Thu, 9 Sep 2010 15:31:13 +0000]
drm/radeon: add some missing copyright headers

Noticed while adding evergreen blit support.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm: Only decouple the old_fb from the crtc is we call mode_set*
Chris Wilson [Thu, 9 Sep 2010 08:41:32 +0000]
drm: Only decouple the old_fb from the crtc is we call mode_set*

Otherwise when disabling the output we switch to the new fb (which is
likely NULL) and skip the call to mode_set -- leaking driver private
state on the old_fb.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=29857
Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: don't enable underscan with interlaced modes
Alex Deucher [Fri, 10 Sep 2010 07:19:05 +0000]
drm/radeon/kms: don't enable underscan with interlaced modes

They aren't compatible.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: add connector table for Mac x800
Alex Deucher [Tue, 7 Sep 2010 18:41:30 +0000]
drm/radeon/kms: add connector table for Mac x800

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=28671

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm/radeon/kms: fix regression in RMX code (v2)
Alex Deucher [Tue, 7 Sep 2010 17:26:39 +0000]
drm/radeon/kms: fix regression in RMX code (v2)

caused by d65d65b175a29bd7ea2bb69c046419329c4a5db7

need to update the radeon crtc priv native mode before using it.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=30049

v2: integrate v/h copy paste typo

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agodrm: Fix regression in disable polling e58f637
Chris Wilson [Mon, 6 Sep 2010 22:53:47 +0000]
drm: Fix regression in disable polling e58f637

I broke out my trusty i845 and found a new boot failure, which upon
inspection turned out to be a recursion within:

drm_helper_probe_single_connector_modes() -> drm_helper_hpd_irq_event()
-> intel_crt_detect() -> drm_helper_probe_single_connector_modes()

Calling drm_kms_helper_poll_enable() instead performs the desired
re-initialisation of the polling should the user have toggled the
parameter, without the recursive side-effect.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

9 years agoworkqueue: add documentation
Tejun Heo [Fri, 10 Sep 2010 14:51:36 +0000]
workqueue: add documentation

Update copyright notice and add Documentation/workqueue.txt.

Randy Dunlap, Dave Chinner: misc fixes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-By: Florian Mickler <florian@mickler.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Dave Chinner <david@fromorbit.com>

9 years agomtd: pxa3xx: fix build error when CONFIG_MTD_PARTITIONS is not defined
Mark F. Brown [Thu, 26 Aug 2010 08:56:51 +0000]
mtd: pxa3xx: fix build error when CONFIG_MTD_PARTITIONS is not defined

Signed-off-by: Mark F. Brown <mark.brown314@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

9 years agomtd: mxc_nand: configure pages per block for v2 controller
Sascha Hauer [Mon, 9 Aug 2010 13:04:19 +0000]
mtd: mxc_nand: configure pages per block for v2 controller

This patch initializes the pages per block field in CONFIG1 for
v2 controllers. It also sets the FP_INT field. This is the last
field not correctly initialized, so we can switch from
read/modify/write the CONFIG1 reg to just write the correct
value.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: John Ogness <john.ogness@linutronix.de>
Tested-by: John Ogness <john.ogness@linutronix.de>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

9 years agomtd: OneNAND: Fix loop hang when DMA error at Samsung SoCs
Kyungmin Park [Fri, 27 Aug 2010 02:55:37 +0000]
mtd: OneNAND: Fix loop hang when DMA error at Samsung SoCs

When DMA error occurs. it's loop hang since it can't exit the loop.
and it's the right DMA handling code as Spec.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

9 years agomtd: OneNAND: Fix 2KiB pagesize handling at Samsung SoCs
Kyungmin Park [Fri, 27 Aug 2010 02:55:44 +0000]
mtd: OneNAND: Fix 2KiB pagesize handling at Samsung SoCs

Wrong assumption bufferram can be switched between BufferRAM0 and BufferRAM1

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

9 years agomtd: Blackfin NFC: fix invalid free in remove()
Mike Frysinger [Sat, 28 Aug 2010 20:42:04 +0000]
mtd: Blackfin NFC: fix invalid free in remove()

Since info->mtd isn't dynamically allocated, we shouldn't attempt to
kfree() it.  Otherwise we get random fun corruption when unloading
the driver built as a module.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

9 years agomtd: Blackfin NFC: fix build error after nand_scan_ident() change
Mike Frysinger [Sat, 28 Aug 2010 05:45:00 +0000]
mtd: Blackfin NFC: fix build error after nand_scan_ident() change

Seems some patches got out sync when being merged.  The Blackfin NFC
driver was updated to use nand_scan_ident(), but it missed the change
where nand_scan_ident() now takes 3 arguments.  So update this driver
to fix build failures.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>