GitHub/MotorolaMobilityLLC/kernel-slsi.git
12 years agoHID: i2c-hid: add mutex protecting open/close race
Benjamin Tissoires [Wed, 12 Dec 2012 17:00:02 +0000 (18:00 +0100)]
HID: i2c-hid: add mutex protecting open/close race

We should not enter close function while someone else is in open.
This mutex prevents this race.

There is also no need to override the ret value with -EIO in case of
a failure of i2c_hid_set_power.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: fix ret_count check
Jiri Kosina [Thu, 6 Dec 2012 09:59:28 +0000 (10:59 +0100)]
HID: i2c-hid: fix ret_count check

ret_count has to be at least 3, as we have to count the 2 bytes that are used
for the size of the reply. Without this, memcpy() might be called with zero or
negative count.

Reported-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: fix i2c_hid_get_raw_report count mismatches
Benjamin Tissoires [Wed, 5 Dec 2012 14:02:56 +0000 (15:02 +0100)]
HID: i2c-hid: fix i2c_hid_get_raw_report count mismatches

The previous memcpy implementation relied on the size advertized by the
device. There were no guarantees that buf was big enough.

Some gymnastic is also required with the +2/-2 to take into account
the first 2 bytes of the returned buffer where the total returned
length is supplied by the device.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: remove extra .irq field in struct i2c_hid
Benjamin Tissoires [Wed, 5 Dec 2012 14:02:55 +0000 (15:02 +0100)]
HID: i2c-hid: remove extra .irq field in struct i2c_hid

There is no point in keeping the irq in i2c_hid as it's already
there in client.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: reorder allocation/free of buffers
Benjamin Tissoires [Wed, 5 Dec 2012 14:02:54 +0000 (15:02 +0100)]
HID: i2c-hid: reorder allocation/free of buffers

Simplifies i2c_hid_alloc_buffers tests, and makes this function
responsible of the assignment of ihid->bufsize.
The condition for the reallocation in i2c_hid_start is then simpler.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: fix memory corruption due to missing hid declaration
Benjamin Tissoires [Wed, 5 Dec 2012 14:02:53 +0000 (15:02 +0100)]
HID: i2c-hid: fix memory corruption due to missing hid declaration

HID descriptors contains 4 bytes of reserved field.
The previous implementation was overriding the next fields in struct i2c_hid.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: remove superfluous include
Jiri Kosina [Wed, 5 Dec 2012 10:29:08 +0000 (11:29 +0100)]
HID: i2c-hid: remove superfluous include

The pointless WARN_ON() has been removed from i2c_hid_remove(),
so we don't need bug.h any more.

Reported-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: remove unneeded test in i2c_hid_remove
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:52 +0000 (16:27 +0100)]
HID: i2c-hid: remove unneeded test in i2c_hid_remove

ihid can not be null, so there are no reasons to test it.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: i2c_hid_get_report may fail
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:50 +0000 (16:27 +0100)]
HID: i2c-hid: i2c_hid_get_report may fail

If i2c_hid_get_report fails, exit i2c_hid_init_report.
The printk log is already called by i2c_hid_get_report, so no need
to add some more printks.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: also call i2c_hid_free_buffers in i2c_hid_remove
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:54 +0000 (16:27 +0100)]
HID: i2c-hid: also call i2c_hid_free_buffers in i2c_hid_remove

In the case where the hid driver in charge of handling the hid part
of the device (hid-generic for instance) fails at probe, neither
i2c_hid_start nor i2c_hid_stop are called.
Thus, the buffers allocated in i2c_hid_probe are never freed.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: fix error messages
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:49 +0000 (16:27 +0100)]
HID: i2c-hid: fix error messages

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: fix return paths
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:48 +0000 (16:27 +0100)]
HID: i2c-hid: fix return paths

Forwards appropriate return values.
As noone use the error returned by i2c_hid_get_input, let's make it
returning void.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: remove unused static declarations
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:47 +0000 (16:27 +0100)]
HID: i2c-hid: remove unused static declarations

These definitions are not used here, but are defined by the specification.
Keeping some of them for documentation purposes.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: fix i2c_hid_dbg macro
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:46 +0000 (16:27 +0100)]
HID: i2c-hid: fix i2c_hid_dbg macro

This avoids the problematic case:

if (condition)
i2c_hid_dbg(ihid, "Blah blah %d\n", i);
else
do_something_very_important();

Which looks correct, however with the previous macro definition,
this expands to the unexpected:

if (condition) {
if (debug) \
dev_printk(KERN_DEBUG, &ihid->client->dev,
"Blah blah %d\n", i);
else
do_something_very_important();
}

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: fix checkpatch.pl warning
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:45 +0000 (16:27 +0100)]
HID: i2c-hid: fix checkpatch.pl warning

We should not initialize to 0 static declarations.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: enhance Kconfig
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:44 +0000 (16:27 +0100)]
HID: i2c-hid: enhance Kconfig

The "comment" part can never be displayed, so we can remove it.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: change I2C name
Benjamin Tissoires [Tue, 4 Dec 2012 15:27:42 +0000 (16:27 +0100)]
HID: i2c-hid: change I2C name

no I2C driver has "i2c" in its name. It makes more sense to call this
i2c driver "hid".

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: fix memory leak during probe
Jiri Kosina [Tue, 20 Nov 2012 16:09:40 +0000 (17:09 +0100)]
HID: i2c-hid: fix memory leak during probe

In case we are returning from i2c_hid_probe() through the 'err' or
'err_mem_free' labels, there is noone freeing the buffers allocated by
i2c_hid_alloc_buffers().

Reviewed-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoHID: i2c-hid: introduce HID over i2c specification implementation
Benjamin Tissoires [Mon, 12 Nov 2012 14:42:59 +0000 (15:42 +0100)]
HID: i2c-hid: introduce HID over i2c specification implementation

Microsoft published the protocol specification of HID over i2c:
http://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx

This patch introduces an implementation of this protocol.

This implementation does not includes the ACPI part of the specification.
This will come when ACPI 5.0 devices enumeration will be available.

Once the ACPI part is done, OEM will not have to declare HID over I2C
devices in their platform specific driver.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Fri, 16 Nov 2012 15:58:20 +0000 (07:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

Pull HID fix from Jiri Kosina:
 "This has a build fix for architectures where memcmp() is macro, from
  Jiri Slaby"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: microsoft: do not use compound literal - fix build

12 years agoMerge tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Fri, 16 Nov 2012 15:47:18 +0000 (07:47 -0800)]
Merge tag 'usb-3.7-rc5' of git://git./linux/kernel/git/gregkh/usb

Pull USB fixes from Greg Kroah-Hartman:
 "Here are some USB fixes for the 3.7 tree.

  Nothing huge here, just a number of tiny bugfixes resolving issues
  that have been found, and two reverts of patches that were found to
  have caused problems.

  All of these have been in linux-next already.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'usb-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  Revert "USB/host: Cleanup unneccessary irq disable code"
  USB: option: add Alcatel X220/X500D USB IDs
  USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs
  USB: keyspan: fix typo causing GPF on open
  USB: fix build with XEN and EARLY_PRINTK_DBGP enabled but USB_SUPPORT disabled
  USB: usb_wwan: fix bulk-urb allocation
  usb: otg: Fix build errors if USB_MUSB_OMAP2PLUS is selected as module
  usb: musb: ux500: fix 'musbid' undeclared error in ux500_remove()
  Revert "usb: musb: use DMA mode 1 whenever possible"

12 years agoMerge tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Fri, 16 Nov 2012 15:46:38 +0000 (07:46 -0800)]
Merge tag 'tty-3.7-rc5' of git://git./linux/kernel/git/gregkh/tty

Pull TTY fixes from Greg Kroah-Hartman:
 "Here are two TTY driver fixes for 3.7-rc5.

  They resolve a bug in the hvc driver that has been reported, and fix a
  problem with the list of device ids in the max310x serial driver.

  Both have been in linux-next for a while.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'tty-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: serial: max310x: Add terminating entry for spi_device_id table
  TTY: hvc_console, fix port reference count going to zero prematurely

12 years agoMerge tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Fri, 16 Nov 2012 15:46:04 +0000 (07:46 -0800)]
Merge tag 'staging-3.7-rc5' of git://git./linux/kernel/git/gregkh/staging

Pull staging tree fix from Greg Kroah-Hartman:
 "Here is a single patch, a revert of an android driver patch, that
  resolves a bug that has been reported in the Android alarm driver.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'staging-3.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  Revert "Staging: Android alarm: IOCTL command encoding fix"

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Fri, 16 Nov 2012 15:39:30 +0000 (07:39 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/s390/linux

Pull s390 patches from Martin Schwidefsky:
 "Some more bug fixes and a config change.

  The signal bug is nasty, if the clock_gettime vdso function is
  interrupted by a signal while in access-register-mode we end up with
  an endless signal loop until the signal stack is full.  The config
  change is for aligned struct pages, gives us 8% improvement with
  hackbench."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/3215: fix tty close handling
  s390/mm: have 16 byte aligned struct pages
  s390/gup: fix access_ok() usage in __get_user_pages_fast()
  s390/gup: add missing TASK_SIZE check to get_user_pages_fast()
  s390/topology: fix core id vs physical package id mix-up
  s390/signal: set correct address space control

12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 16 Nov 2012 15:32:32 +0000 (07:32 -0800)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes from Dave Airlie:
 "All pretty normal: one TTM oops fix, one radeon, a few intel and a
  vmwgfx fix."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/ttm: remove unneeded preempt_disable/enable
  ttm: Clear the ttm page allocated from high memory zone correctly
  vmwgfx: return an -EFAULT if copy_to_user() fails
  drm/radeon: fix logic error in atombios_encoders.c
  drm/i915: do not ignore eDP bpc settings from vbt
  drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
  drm/i915/crt: fix DPMS standby and suspend mode handling

12 years agoMerge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux
Linus Torvalds [Fri, 16 Nov 2012 15:19:45 +0000 (07:19 -0800)]
Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux

Pull another clk layer fix from Michael Turquette:
 "GCC 4.7 users get compilation errors from unnecessary use of inline in
  clk-provider.h.  This pull request fixes the regression by removing
  inline usage from those function declarations."

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
  clk: remove inline usage from clk-provider.h

12 years agoMerge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel...
Dave Airlie [Fri, 16 Nov 2012 00:00:43 +0000 (10:00 +1000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-fixes

Daniel writes:
Just a few small things to fix regressions, somehow all patches from Jani:
- Fix dpms confusion about which platforms support intermediate modes on
  vga.
- Revert the "ignore vbt for eDP bpc" patch, it breaks machines. This will
  annoy mbp retina owners again, but windows machines seem to _really_
  depend upon this. We can try to quirk the mbp retinas again in 3.8 and
  backport the patch.
- Fix connector leaks when the sdvo setup failed, resulted in an OOPS
  later on when trying to probe that connector (with it's encoder kfree'd
  already).

* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel:
  drm/i915: do not ignore eDP bpc settings from vbt
  drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
  drm/i915/crt: fix DPMS standby and suspend mode handling

12 years agoMerge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm...
Dave Airlie [Fri, 16 Nov 2012 00:00:24 +0000 (10:00 +1000)]
Merge branch 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

Just a single radeon fix from Alex.

* 'drm-fixes-3.7' of git://people.freedesktop.org/~agd5f/linux:
  drm/radeon: fix logic error in atombios_encoders.c

12 years agodrm/ttm: remove unneeded preempt_disable/enable
Akinobu Mita [Fri, 9 Nov 2012 12:10:43 +0000 (12:10 +0000)]
drm/ttm: remove unneeded preempt_disable/enable

It is unnecessary to disable preemption explicitly while calling
copy_highpage().  Because copy_highpage() will do it again through
kmap_atomic/kunmap_atomic.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agottm: Clear the ttm page allocated from high memory zone correctly
Zhao Yakui [Tue, 13 Nov 2012 18:31:55 +0000 (18:31 +0000)]
ttm: Clear the ttm page allocated from high memory zone correctly

The TTM page can be allocated from high memory. In such case it is
wrong to use the page_address(page) as the virtual address for the high memory
page.

bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=50241

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Cc: stable@vger.kernel.org
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agovmwgfx: return an -EFAULT if copy_to_user() fails
Dan Carpenter [Mon, 12 Nov 2012 11:07:24 +0000 (11:07 +0000)]
vmwgfx: return an -EFAULT if copy_to_user() fails

copy_to_user() returns the number of bytes remaining to be copied, but
we want to return a negative error code here.  I fixed a couple of these
last year, but I missed this one.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
12 years agoclk: remove inline usage from clk-provider.h
Igor Mazanov [Thu, 15 Nov 2012 17:07:00 +0000 (21:07 +0400)]
clk: remove inline usage from clk-provider.h

Users of GCC 4.7 have reported compiler errors due to having inline
applied to function declarations in clk-provider.h.  The definitions
exist in drivers/clk/clk.c.  An example error:

In file included from arch/arm/mach-omap2/clockdomain.c:25:0:
arch/arm/mach-omap2/clockdomain.c: In function â€˜clkdm_clk_disable’:
include/linux/clk-provider.h:338:12: error: inlining failed in call to always_inline â€˜__clk_get_enable_count’: function body not available
arch/arm/mach-omap2/clockdomain.c:1001:28: error: called from here
make[1]: *** [arch/arm/mach-omap2/clockdomain.o] Error 1
make: *** [arch/arm/mach-omap2] Error 2

This patch removes the use of inline from include/linux/clk-provider.h
but keeps the function definitions in drivers/clk/clk.c as inlined since
they are one-liners.

Signed-off-by: Igor Mazanov <i.mazanov@gmail.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
[mturquette@linaro.org: improved subject, added changelog]

12 years agoMerge tag 'for-linus' of git://github.com/gxt/linux
Linus Torvalds [Thu, 15 Nov 2012 19:34:45 +0000 (11:34 -0800)]
Merge tag 'for-linus' of git://github.com/gxt/linux

Pull unicore32 update from Guan Xuetao.

* tag 'for-linus' of git://github.com/gxt/linux:
  arch/unicore32: remove CONFIG_EXPERIMENTAL
  unicore32: switch to generic sys_execve()
  unicore32: switch to generic kernel_thread()/kernel_execve()
  unicore32: Use Kbuild infrastructure for kvm_para.h
  UAPI: (Scripted) Disintegrate arch/unicore32/include/asm
  UniCore32-bugfix: Remove definitions in asm/bug.h to solve difference between native and cross compiler
  UniCore32-bugfix: fix mismatch return value of __xchg_bad_pointer
  UniCore32 bugfix: add missed CONFIG_ZONE_DMA
  unicore32/mm/fault.c: Port OOM changes to do_pf

12 years agoMerge tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs
Linus Torvalds [Thu, 15 Nov 2012 19:28:43 +0000 (11:28 -0800)]
Merge tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs

Pull UBIFS fixes from Artem Bityutskiy:
 "Two patches which fix a problem reported by several people in the
  past, but only fixed now because no one gave enough material for
  debugging.

  Anyway, these fix the problem that sometimes after a power cut the
  file-system is not mountable with the following symptom:

grab_empty_leb: could not find an empty LEB

  The fixes make the file-system mountable again."

* tag 'upstream-3.7-rc6' of git://git.infradead.org/linux-ubifs:
  UBIFS: fix mounting problems after power cuts
  UBIFS: introduce categorized lprops counter

12 years agoMerge tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore
Linus Torvalds [Thu, 15 Nov 2012 19:27:53 +0000 (11:27 -0800)]
Merge tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore

Pull pstore fix from Anton Vorontsov:
 "A small fixup for the persistent storage subsystem.  The bug can
  prevent kernel booting on a APEI-enabled machines w/ PSTORE_CONSOLE=y
  (this is N by default, though)."

* tag 'for-v3.7-fixes' of git://git.infradead.org/users/cbou/linux-pstore:
  pstore: Fix NULL pointer dereference in console writes

12 years agoMerge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvar...
Linus Torvalds [Thu, 15 Nov 2012 19:25:39 +0000 (11:25 -0800)]
Merge branch 'i2c-for-linus' of git://git./linux/kernel/git/jdelvare/staging

Pill i2c fixes from Jean Delvare.

Well, "fixes"..  The biggest patch here is actually Jan marking Wolfram
Sang as the main i2c subsystem maintainer, with Jan staying on as the PC
controller maintainer.

* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c-mux-pinctrl: Fix probe error path
  MAINTAINERS: i2c: 7 years, this is it

12 years agoMerge tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...
Linus Torvalds [Thu, 15 Nov 2012 19:22:03 +0000 (11:22 -0800)]
Merge tag 'regulator-3.7' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fixes from Mark Brown:
 "A few fixes for teardown issues that will be rarely seen, plus a fix
  for a silly bug in regulator_is_supported_voltage() which shows how
  often the answer to the question should be false.

  The supported voltage commit is very new as I just edited to add a Cc
  to stable, the code itself has been in -next."

* tag 'regulator-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: fix voltage check in regulator_is_supported_voltage()
  regulator: core: Avoid deadlock when regulator_register fails
  Regulator: core: Unregister when gpio request fails.

12 years agoMerge tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Linus Torvalds [Thu, 15 Nov 2012 19:21:28 +0000 (11:21 -0800)]
Merge tag 'sound-3.7' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "The only large LOC is seen in WM5102 driver, just writing a bunch of
  register updates, but the actual code change is small.  Other than
  that, all small fixes suitable for rc6."

* tag 'sound-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Fix mutex deadlock at disconnection
  ALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins()
  ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins()
  ALSA: hda - Add a missing quirk entry for iMac 9,1
  ASoC: core: Double control update err for snd_soc_put_volsw_sx
  ASoC: dapm: Use card_list during DAPM shutdown
  ASoC: cs42l52: fix the return value of cs42l52_set_fmt()
  ASoC: bells: Correct type in sub speaker DAI name for WM5102
  ASoC: wm8978: pll incorrectly configured when codec is master
  ASoC: mxs-saif: Fix channel swap for 24-bit format
  ASoC: bells: Select WM1250-EV1 Springbank audio I/O module
  ASoC: bells: Add missing select of WM0010
  ASoC: mxs-saif: Add MODULE_ALIAS
  ASoC: wm5102: Write register value corrections after SYSCLK is enabled

12 years agos390/3215: fix tty close handling
Heiko Carstens [Thu, 15 Nov 2012 08:22:40 +0000 (09:22 +0100)]
s390/3215: fix tty close handling

The 3215 console always has the RAW3215_FIXED flag set, which causes
raw3215_shutdown() not to wait for outstanding I/O requests if an attached
tty gets closed.
The flag however can be simply removed, so we can guarantee that all requests
belonging to the tty have been processed when the tty is closed.

However the tasklet that belongs to the 3215 device may be scheduled even if
there is no tty attached anymore, since we have a race between console and tty
processing.
Thefore unconditional tty_wakekup() in raw3215_wakeup() can cause the following
NULL pointer dereference:

3.465368 Unable to handle kernel pointer dereference at virtual kernel address (null)
3.465448 Oops: 0004 #1 SMP
3.465454 Modules linked in:
3.465459 CPU: 1 Not tainted 3.6.0 #1
3.465462 Process swapper/1 (pid: 0, task: 000000003ffa4428, ksp: 000000003ffb7ce0)
3.465466 Krnl PSW : 0404100180000000 0000000000162f86 (__wake_up+0x46/0xb8)
3.465480            R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3
         Krnl GPRS: fffffffffffffffe 0000000000000000 0000000000000160 0000000000000001
3.465492            0000000000000001 0000000000000004 0000000000000004 000000000096b490
3.465499            0000000000000001 0000000000000100 0000000000000001 0000000000000001
3.465506            070000003fc87d60 0000000000000160 000000003fc87d68 000000003fc87d00
3.465526 Krnl Code: 0000000000162f76e3c0f0a80004      lg      %r12,168(%r15)
                    0000000000162f7c58000370          l       %r0,880
                   #0000000000162f80c007ffffffff00    xilf    %r0,4294967295
                   >0000000000162f86ba102000          cs      %r1,%r0,0(%r2)
                    0000000000162f8a: 1211              ltr     %r1,%r1
                    0000000000162f8ca774002f          brc     7,162fea
                    0000000000162f90b904002d          lgr     %r2,%r13
                    0000000000162f94b904003a          lgr     %r3,%r10
3.465597 Call Trace:
3.465599 (<0400000000000000> 0x400000000000000)
3.465602  <000000000048c77e> raw3215_wakeup+0x2e/0x40
3.465607  <0000000000134d66> tasklet_action+0x96/0x168
3.465612  <000000000013423c> __do_softirq+0xd8/0x21c
3.465615  <0000000000134678> irq_exit+0xa8/0xac
3.465617  <000000000046c232> do_IRQ+0x182/0x248
3.465621  <00000000005c8296> io_return+0x0/0x8
3.465625  <00000000005c7cac> vtime_stop_cpu+0x4c/0xb8
3.465629 (<0000000000194e06> tick_nohz_idle_enter+0x4e/0x74)
3.465633  <0000000000104760> cpu_idle+0x170/0x184
3.465636  <00000000005b5182> smp_start_secondary+0xd6/0xe0
3.465641  <00000000005c86be> restart_int_handler+0x56/0x6c
3.465643  <0000000000000000> 0x0
3.465645 Last Breaking-Event-Address:
3.465647  <0000000000403136> tty_wakeup+0x46/0x98
3.465652
3.465654 Kernel panic - not syncing: Fatal exception in interrupt
01: HCPGIR450W CP entered; disabled wait PSW 00020001 80000000 00000000 0010F63C

The easiest solution is simply to check if tty is NULL in the tasklet.
If it is NULL nothing is to do (no tty attached), otherwise tty_wakeup()
can be called, since we hold a reference to the tty.
This is not nice... but it is a small patch and it works.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agodrm/radeon: fix logic error in atombios_encoders.c
Alex Deucher [Wed, 14 Nov 2012 14:10:39 +0000 (09:10 -0500)]
drm/radeon: fix logic error in atombios_encoders.c

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=50431

Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
12 years agopstore: Fix NULL pointer dereference in console writes
Colin Ian King [Wed, 14 Nov 2012 11:49:53 +0000 (11:49 +0000)]
pstore: Fix NULL pointer dereference in console writes

Passing a NULL id causes a NULL pointer deference in writers such as
erst_writer and efi_pstore_write because they expect to update this id.
Pass a dummy id instead.

This avoids a cascade of oopses caused when the initial
pstore_console_write passes a null which in turn causes writes to the
console causing further oopses in subsequent pstore_console_write calls.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org>
12 years agoMerge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulat...
Mark Brown [Thu, 15 Nov 2012 02:16:02 +0000 (11:16 +0900)]
Merge remote-tracking branches 'regulator/fix/gpio', 'regulator/fix/put' and 'regulator/fix/supp-volt' into tmp

12 years agoregulator: fix voltage check in regulator_is_supported_voltage()
Marek Szyprowski [Tue, 13 Nov 2012 08:48:51 +0000 (09:48 +0100)]
regulator: fix voltage check in regulator_is_supported_voltage()

regulator_is_supported_voltage() should return true only if the voltage
of fixed/constant regulator is between min_uV and max_uV.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
12 years agotty: serial: max310x: Add terminating entry for spi_device_id table
Axel Lin [Sun, 4 Nov 2012 15:34:18 +0000 (23:34 +0800)]
tty: serial: max310x: Add terminating entry for spi_device_id table

The spi_device_id table is supposed to be zero-terminated.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Linus Torvalds [Wed, 14 Nov 2012 21:46:40 +0000 (13:46 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux

Pull power tools fixes from Len Brown:
 "A pair of power tools patches -- a 3.7 regression fix plus a bug fix."

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: graceful fail on garbage input
  tools/power turbostat: Repair Segmentation fault when using -i option

12 years agoMerge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Linus Torvalds [Wed, 14 Nov 2012 21:45:23 +0000 (13:45 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/ralf/upstream-linus

Pull MIPS update from Ralf Baechle:
 "To avoid unnecessary risk and work the preemption fixes are combined
  with some preparatory work that isn't strictly required.  So it's
  really just 3 fixes:

   - Get is_compat_task() to do the right thing while simplifying it.
     The unnecessary complexity hid a rarely striking bug which could be
     triggered by ext3/ext4 under certain circumstances.
   - Resolve a preemption issue in the irqflags.h functions for kernels
     built to support pre-MIPS32 / pre-MIPS64 Release 2 processors.
   - Fix the interrupt number of the MIPS Malta's CBUS UART."

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: Malta: Fix interupt number of CBUS UART.
  MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus
  MIPS: Remove irqflags.h dependency from bitops.h
  MIPS: bitops.h: Change use of 'unsigned short' to 'int'
  MIPS: compat: Delete now unused TIF_32BIT.
  MIPS: compat: Implement is_compat_task() by testing for 32-bit address space.
  MIPS: compat: Fix use of TIF_32BIT_ADDR vs _TIF_32BIT_ADDR

12 years agoMerge branch 'for-3.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj...
Linus Torvalds [Wed, 14 Nov 2012 21:44:04 +0000 (13:44 -0800)]
Merge branch 'for-3.7-fixes' of git://git./linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:
 "This contains two fix patches for device_cgroup.  One fixes a
  regression introduced earlier in 3.7 cycle where device_cgroup could
  try to dereference the NULL parent of the root cgroup.  The other one
  is RCU usage fix."

* 'for-3.7-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  device_cgroup: fix RCU usage
  device_cgroup: fix unchecked cgroup parent usage

12 years agoTTY: hvc_console, fix port reference count going to zero prematurely
Paul Mackerras [Wed, 14 Nov 2012 08:15:47 +0000 (19:15 +1100)]
TTY: hvc_console, fix port reference count going to zero prematurely

Commit bdb498c20040 "TTY: hvc_console, add tty install" took the port
refcounting out of hvc_open()/hvc_close(), but failed to remove the
kref_put() and tty_kref_put() calls in hvc_hangup() that were there to
remove the extra references that hvc_open() had taken.

The result was that doing a vhangup() when the current terminal was
a hvc_console, then closing the current terminal, would end up calling
destroy_hvc_struct() and making the port disappear entirely.  This
meant that Fedora 17 systems would boot up but then not display the
login prompt on the console, and attempts to open /dev/hvc0 would
give a "No such device" error.

This fixes it by removing the extra kref_put() and tty_kref_put() calls.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoALSA: usb-audio: Fix mutex deadlock at disconnection
Takashi Iwai [Tue, 13 Nov 2012 10:22:48 +0000 (11:22 +0100)]
ALSA: usb-audio: Fix mutex deadlock at disconnection

The recent change for USB-audio disconnection race fixes introduced a
mutex deadlock again.  There is a circular dependency between
chip->shutdown_rwsem and pcm->open_mutex, depicted like below, when a
device is opened during the disconnection operation:

A. snd_usb_audio_disconnect() ->
     card.c::register_mutex ->
       chip->shutdown_rwsem (write) ->
         snd_card_disconnect() ->
           pcm.c::register_mutex ->
             pcm->open_mutex

B. snd_pcm_open() ->
     pcm->open_mutex ->
       snd_usb_pcm_open() ->
         chip->shutdown_rwsem (read)

Since the chip->shutdown_rwsem protection in the case A is required
only for turning on the chip->shutdown flag and it doesn't have to be
taken for the whole operation, we can reduce its window in
snd_usb_audio_disconnect().

Reported-by: Jiri Slaby <jslaby@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoregulator: core: Avoid deadlock when regulator_register fails
Charles Keepax [Wed, 14 Nov 2012 09:39:31 +0000 (09:39 +0000)]
regulator: core: Avoid deadlock when regulator_register fails

When regulator_register fails and exits through the scrub path the
regulator_put function was called whilst holding the
regulator_list_mutex, causing deadlock.

This patch adds a private version of the regulator_put function which
can be safely called whilst holding the mutex, replacing the
aforementioned call.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
12 years agoALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins()
Dan Carpenter [Wed, 14 Nov 2012 08:23:54 +0000 (11:23 +0300)]
ALSA: fm801: precedence bug in snd_fm801_tea575x_get_pins()

There is a precedence bug because | has higher precedence than ?:.  This
code was cut and pasted and I fixed a similar bug a few days ago.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoi2c-mux-pinctrl: Fix probe error path
Guenter Roeck [Tue, 13 Nov 2012 21:27:19 +0000 (22:27 +0100)]
i2c-mux-pinctrl: Fix probe error path

When allocating the memory for i2c busses, the code checked the wrong
variable and thus never detected if there was a memory error.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
12 years agoMAINTAINERS: i2c: 7 years, this is it
Jean Delvare [Tue, 13 Nov 2012 21:27:19 +0000 (22:27 +0100)]
MAINTAINERS: i2c: 7 years, this is it

I have been maintaining the i2c subsystem for 7 years now, it's about
time to let someone else take over. Just before I leave, I would like
to thank several individuals who made this possible at all:

* Greg Kroah-Hartman, for his faith in my potential subsystem
  maintainer skills. Greg, I hope I met your expectations.
* Late David Brownell, for helping me convert the i2c subsystem to the
  standard device driver model. Rest in peace David, we're missing you.
* Ben Dooks, for stepping in when I asked for someone to take care of
  the huge flow of new i2c adapter drivers for embedded systems.
* Wolfram Sang, for joining the crew when it became clear that there
  was more review work than Ben and myself could deal with.

I hope I did not forget anyone, please forgive me if I did.

Another big thank is due to Wolfram again, who quickly proposed to
take over as the main i2c subsystem maintainer. This will allow for a
smooth and fast transition.

Note that I will keep maintaining all I2C/SMBus controller drivers for
PC systems as well as a few others. I am hereby updating MAINTAINERS
accordingly. I'll also keep maintaining user-space i2c-tools.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
12 years agoRevert "Staging: Android alarm: IOCTL command encoding fix"
Colin Cross [Thu, 8 Nov 2012 02:21:51 +0000 (18:21 -0800)]
Revert "Staging: Android alarm: IOCTL command encoding fix"

Commit 6bd4a5d96c08dc2380f8053b1bd4f879f55cd3c9 changed the
ANDROID_ALARM_GET_TIME ioctls from IOW to IOR.  While technically
correct, the _IOC_DIR bits are ignored by alarm_ioctl, so the
commit breaks a userspace ABI used by all existing Android devices
for a purely cosmetic reason.  Revert it.

Cc: stable <stable@vger.kernel.org>
Cc: Dae S. Kim <dae@velatum.com>
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoRevert "USB/host: Cleanup unneccessary irq disable code"
Greg Kroah-Hartman [Tue, 13 Nov 2012 18:52:52 +0000 (10:52 -0800)]
Revert "USB/host: Cleanup unneccessary irq disable code"

This reverts commit 73d4066055e0e2830533041f4b91df8e6e5976ff.

Martin Steigerwald reported that this change caused a hard lockup when
using USB if threadirqs are enabled.  Thomas pointed out that this patch
is incorrect, and can cause problems.  So revert it to get the
previously working functionality back.

Reported-by: Martin Steigerwald <Martin@lichtvoll.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Chuansheng Liu <chuansheng.liu@intel.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoUSB: option: add Alcatel X220/X500D USB IDs
Dan Williams [Thu, 8 Nov 2012 17:56:53 +0000 (11:56 -0600)]
USB: option: add Alcatel X220/X500D USB IDs

Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoUSB: option: add Novatel E362 and Dell Wireless 5800 USB IDs
Dan Williams [Thu, 8 Nov 2012 17:56:42 +0000 (11:56 -0600)]
USB: option: add Novatel E362 and Dell Wireless 5800 USB IDs

The Dell 5800 appears to be a simple rebrand of the Novatel E362.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoUSB: keyspan: fix typo causing GPF on open
Bjørn Mork [Sat, 10 Nov 2012 09:13:42 +0000 (10:13 +0100)]
USB: keyspan: fix typo causing GPF on open

Commit f79b2d0f (USB: keyspan: fix NULL-pointer dereferences and
memory leaks) had a small typo which made the driver use wrong
offsets when mapping serial port private data.  This results in
in a GPF when the port is opened.

Reported-by: Richard <richjunk@pacbell.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Acked-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
12 years agoMIPS: Malta: Fix interupt number of CBUS UART.
Ralf Baechle [Tue, 13 Nov 2012 09:41:50 +0000 (10:41 +0100)]
MIPS: Malta: Fix interupt number of CBUS UART.

The CBUS UART's interrupt number was wrong conflicting with the interrupt
being tied to the Intel PIIX4.  Since the PIIX4's interrupt is registered
before the CBUS UART which is not being used on most systems this would
not be noticed.

Attempts to open the ttyS2 CBUS UART would result in:

genirq: Flags mismatch irq 18. 00000000 (serial) vs. 00010000 (XT-PIC cascade)
serial_link_irq_chain: request failed: -16 for irq: 18

Qemu was written to match the kernel so will need to be fixed also.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
12 years agodrm/i915: do not ignore eDP bpc settings from vbt
Jani Nikula [Mon, 12 Nov 2012 12:33:44 +0000 (14:33 +0200)]
drm/i915: do not ignore eDP bpc settings from vbt

There are laptops out there that need the eDP bpc from VBT. This is
effectively a revert of

commit 4344b813f105a19f793f1fd93ad775b784648b95
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Aug 10 11:10:20 2012 +0200

    drm/i915: ignore eDP bpc settings from vbt

but putting the VBT check after the EDID check to see them both in dmesg if
this clamps more than the EDID. We have enough history with bpc clamping to
warrant the extra debug info.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=47641
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=56401
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agos390/mm: have 16 byte aligned struct pages
Heiko Carstens [Thu, 8 Nov 2012 13:18:47 +0000 (14:18 +0100)]
s390/mm: have 16 byte aligned struct pages

Select HAVE_ALIGNED_STRUCT_PAGE on s390, so that the slub allocator can make
use of compare and swap double for lockless updates. This increases the size
of struct page to 64 bytes (instead of 56 bytes), however the performance gain
justifies the increased size:

- now excactly four struct pages fit into a single cache line; the
  case that accessing a struct page causes two cache line loads
  does not exist anymore.
- calculating the offset of a struct page within the memmap array
  is only a simple shift instead of a more expensive multiplication.

A "hackbench 200 process 200" run on a 32 cpu system did show an 8% runtime
improvement.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agos390/gup: fix access_ok() usage in __get_user_pages_fast()
Heiko Carstens [Mon, 22 Oct 2012 13:58:26 +0000 (15:58 +0200)]
s390/gup: fix access_ok() usage in __get_user_pages_fast()

access_ok() returns always "true" on s390. Therefore all access_ok()
invocations are rather pointless.
However when walking page tables we need to make sure that everything
is within bounds of the ASCE limit of the task's address space.
So remove the access_ok() call and add the same check we have in
get_user_pages_fast().

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agos390/gup: add missing TASK_SIZE check to get_user_pages_fast()
Heiko Carstens [Mon, 22 Oct 2012 13:49:02 +0000 (15:49 +0200)]
s390/gup: add missing TASK_SIZE check to get_user_pages_fast()

When walking page tables we need to make sure that everything
is within bounds of the ASCE limit of the task's address space.
Otherwise we might calculate e.g. a pud pointer which is not
within a pud and dereference it.
So check against TASK_SIZE (which is the ASCE limit) before
walking page tables.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agoALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins()
Dan Carpenter [Tue, 13 Nov 2012 07:44:54 +0000 (10:44 +0300)]
ALSA: es1968: precedence bug in snd_es1968_tea575x_get_pins()

I don't think this works as intended.  '|' higher precedence than ?: so
the bitwize OR "0 | (val & STR_MOST)" is a no-op.

I have re-written it to be more clear.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoMerge tag 'asoc-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound...
Takashi Iwai [Tue, 13 Nov 2012 06:48:07 +0000 (07:48 +0100)]
Merge tag 'asoc-3.7' of git://git./linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.7

A few small fixes plus a large but simple change for WM5102 which writes
out a bunch of register updates to the device when we enable the clock
as recommended following chip evaluation.

12 years agoMerge branches 'fix/arizona', 'fix/core', 'fix/cs42l52', 'fix/mxs', 'fix/samsung...
Mark Brown [Tue, 13 Nov 2012 06:13:29 +0000 (15:13 +0900)]
Merge branches 'fix/arizona', 'fix/core', 'fix/cs42l52', 'fix/mxs', 'fix/samsung' and 'fix/wm8978' of git://git./linux/kernel/git/broonie/sound into tmp

12 years agoMerge git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Tue, 13 Nov 2012 01:37:53 +0000 (17:37 -0800)]
Merge git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fix from Marcelo Tosatti:
 "A correction for user triggerable oops"

* git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: invalid opcode oops on SET_SREGS with OSXSAVE bit set (CVE-2012-4461)

12 years agoMerge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux
Linus Torvalds [Tue, 13 Nov 2012 01:05:53 +0000 (17:05 -0800)]
Merge tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux

Pull ux500 clk fixes from Mike Turquette:
 "Missing clkdev entries are causing regressions on the U8500 platform.
  This pull request contains those missing clkdev entries which are
  needed to boot that platform."

* tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mturquette/linux:
  clk: ux500: Register slimbus clock lookups for u8500
  clk: ux500: Update rtc clock lookup for u8500
  clk: ux500: Register msp clock lookups for u8500
  clk: ux500: Register ssp clock lookups for u8500
  clk: ux500: Register i2c clock lookups for u8500

12 years agoMerge branch 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Linus Torvalds [Tue, 13 Nov 2012 01:04:57 +0000 (17:04 -0800)]
Merge branch 'rc-fixes' of git://git./linux/kernel/git/mmarek/kbuild

Pull menuconfig portability fix from Michal Marek:
 "Here is a fix for v3.7 that makes menuconfig compile again on systems
  whose C library is lacking CIRCLEQ_* macros.  I thought I sent it
  earlier, but apparently I did not."

* 'rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  menuconfig: Replace CIRCLEQ by list_head-style lists.

12 years agoMerge branch 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/coolone...
Linus Torvalds [Tue, 13 Nov 2012 01:03:28 +0000 (17:03 -0800)]
Merge branch 'fixes-for-3.7' of git://git./linux/kernel/git/cooloney/linux-leds

Pull LED fix from Bryan Wu.

* 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds:
  ledtrig-cpu: kill useless mutex to fix sleep in atomic context

12 years agoMerge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Tue, 13 Nov 2012 01:02:21 +0000 (17:02 -0800)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull futex fix from Thomas Gleixner:
 "Single fix for a long standing futex race when taking over a futex
  whose owner died.  You can end up with two owners, which violates
  quite some rules."

* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Handle futex_pi OWNER_DIED take over correctly

12 years agoKVM: x86: invalid opcode oops on SET_SREGS with OSXSAVE bit set (CVE-2012-4461)
Petr Matousek [Tue, 6 Nov 2012 18:24:07 +0000 (19:24 +0100)]
KVM: x86: invalid opcode oops on SET_SREGS with OSXSAVE bit set (CVE-2012-4461)

On hosts without the XSAVE support unprivileged local user can trigger
oops similar to the one below by setting X86_CR4_OSXSAVE bit in guest
cr4 register using KVM_SET_SREGS ioctl and later issuing KVM_RUN
ioctl.

invalid opcode: 0000 [#2] SMP
Modules linked in: tun ip6table_filter ip6_tables ebtable_nat ebtables
...
Pid: 24935, comm: zoog_kvm_monito Tainted: G      D      3.2.0-3-686-pae
EIP: 0060:[<f8b9550c>] EFLAGS: 00210246 CPU: 0
EIP is at kvm_arch_vcpu_ioctl_run+0x92a/0xd13 [kvm]
EAX: 00000001 EBX: 000f387e ECX: 00000000 EDX: 00000000
ESI: 00000000 EDI: 00000000 EBP: ef5a0060 ESP: d7c63e70
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Process zoog_kvm_monito (pid: 24935, ti=d7c62000 task=ed84a0c0
task.ti=d7c62000)
Stack:
 00000001 f70a1200 f8b940a9 ef5a0060 00000000 00200202 f8769009 00000000
 ef5a0060 000f387e eda5c020 8722f9c8 00015bae 00000000 ed84a0c0 ed84a0c0
 c12bf02d 0000ae80 ef7f8740 fffffffb f359b740 ef5a0060 f8b85dc1 0000ae80
Call Trace:
 [<f8b940a9>] ? kvm_arch_vcpu_ioctl_set_sregs+0x2fe/0x308 [kvm]
...
 [<c12bfb44>] ? syscall_call+0x7/0xb
Code: 89 e8 e8 14 ee ff ff ba 00 00 04 00 89 e8 e8 98 48 ff ff 85 c0 74
1e 83 7d 48 00 75 18 8b 85 08 07 00 00 31 c9 8b 95 0c 07 00 00 <0f> 01
d1 c7 45 48 01 00 00 00 c7 45 1c 01 00 00 00 0f ae f0 89
EIP: [<f8b9550c>] kvm_arch_vcpu_ioctl_run+0x92a/0xd13 [kvm] SS:ESP
0068:d7c63e70

QEMU first retrieves the supported features via KVM_GET_SUPPORTED_CPUID
and then sets them later. So guest's X86_FEATURE_XSAVE should be masked
out on hosts without X86_FEATURE_XSAVE, making kvm_set_cr4 with
X86_CR4_OSXSAVE fail. Userspaces that allow specifying guest cpuid with
X86_FEATURE_XSAVE even on hosts that do not support it, might be
susceptible to this attack from inside the guest as well.

Allow setting X86_CR4_OSXSAVE bit only if host has XSAVE support.

Signed-off-by: Petr Matousek <pmatouse@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
12 years agodrm/i915/sdvo: clean up connectors on intel_sdvo_init() failures
Jani Nikula [Mon, 12 Nov 2012 16:31:35 +0000 (18:31 +0200)]
drm/i915/sdvo: clean up connectors on intel_sdvo_init() failures

Any failures in intel_sdvo_init() after the intel_sdvo_setup_output() call
left behind ghost connectors, attached (with a dangling pointer) to the
sdvo that has been cleaned up and freed. Properly destroy any connectors
attached to the encoder.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=46381
CC: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Cc: stable@vger.kernel.org
Tested-by: bjo@nord-west.org
[danvet: added a comment to explain why we need to clean up connectors
even when sdvo_output_setup fails.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
12 years agoclk: ux500: Register slimbus clock lookups for u8500
Ulf Hansson [Mon, 22 Oct 2012 13:58:01 +0000 (15:58 +0200)]
clk: ux500: Register slimbus clock lookups for u8500

At the same time the prcc bit for the kclk is corrected to
bit 8 instead of 3.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: ux500: Update rtc clock lookup for u8500
Ulf Hansson [Mon, 22 Oct 2012 13:58:00 +0000 (15:58 +0200)]
clk: ux500: Update rtc clock lookup for u8500

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: ux500: Register msp clock lookups for u8500
Ulf Hansson [Mon, 22 Oct 2012 13:57:59 +0000 (15:57 +0200)]
clk: ux500: Register msp clock lookups for u8500

Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: ux500: Register ssp clock lookups for u8500
Ulf Hansson [Mon, 22 Oct 2012 13:57:58 +0000 (15:57 +0200)]
clk: ux500: Register ssp clock lookups for u8500

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agoclk: ux500: Register i2c clock lookups for u8500
Ulf Hansson [Mon, 22 Oct 2012 13:57:57 +0000 (15:57 +0200)]
clk: ux500: Register i2c clock lookups for u8500

Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
12 years agos390/topology: fix core id vs physical package id mix-up
Heiko Carstens [Sat, 10 Nov 2012 10:04:27 +0000 (11:04 +0100)]
s390/topology: fix core id vs physical package id mix-up

The current topology code confuses core id vs physical package id.

In other words /sys/devices/system/cpu/cpuX/topology/core_id
displays the physical_package_id (aka socket id) instead of the
core id.
The physical_package_id sysfs attribute always displays "-1"
instead of the socket id.

Fix this mix-up with a small patch which defines and initializes
topology_physical_package_id correctly and fixes the broken
core id handling.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agos390/signal: set correct address space control
Martin Schwidefsky [Wed, 7 Nov 2012 09:44:08 +0000 (10:44 +0100)]
s390/signal: set correct address space control

If user space is running in primary mode it can switch to secondary
or access register mode, this is used e.g. in the clock_gettime code
of the vdso. If a signal is delivered to the user space process while
it has been running in access register mode the signal handler is
executed in access register mode as well which will result in a crash
most of the time.

Set the address space control bits in the PSW to the default for the
execution of the signal handler and make sure that the previous
address space control is restored on signal return. Take care
that user space can not switch to the kernel address space by
modifying the registers in the signal frame.

Cc: stable@vger.kernel.org
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
12 years agoHID: microsoft: do not use compound literal - fix build
Jiri Slaby [Mon, 12 Nov 2012 09:16:09 +0000 (10:16 +0100)]
HID: microsoft: do not use compound literal - fix build

In patch "HID: microsoft: fix invalid rdesc for 3k kbd" I fixed
support for MS 3k keyboards. However the added check using memcmp and
a compound statement breaks build on architectures where memcmp is a
macro with parameters.

hid-microsoft.c:51:18: error: macro "memcmp" passed 6 arguments, but takes just 3

On x86_64, memcmp is a function, so I did not see the error.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
12 years agoALSA: hda - Add a missing quirk entry for iMac 9,1
Takashi Iwai [Mon, 12 Nov 2012 09:07:36 +0000 (10:07 +0100)]
ALSA: hda - Add a missing quirk entry for iMac 9,1

This is another variant of iMac 9,1 with a different codec SSID.

Reported-and-tested-by: Everaldo Canuto <everaldo.canuto@gmail.com>
Cc: <stable@vger.kernel.org> [v3.3+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
12 years agoledtrig-cpu: kill useless mutex to fix sleep in atomic context
Nathan Lynch [Mon, 5 Nov 2012 14:20:31 +0000 (06:20 -0800)]
ledtrig-cpu: kill useless mutex to fix sleep in atomic context

Seeing the following every time the CPU enters or leaves idle on a
Beagleboard:

BUG: sleeping function called from invalid context at kernel/mutex.c:269
in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/0
no locks held by swapper/0/0.
[<c001659c>] (unwind_backtrace+0x0/0xf8) from [<c05aaa7c>] (mutex_lock_nested+0x24/0x380)
[<c05aaa7c>] (mutex_lock_nested+0x24/0x380) from [<c043bd1c>] (ledtrig_cpu+0x38/0x88)
[<c043bd1c>] (ledtrig_cpu+0x38/0x88) from [<c000f4b0>] (cpu_idle+0xf4/0x120)
[<c000f4b0>] (cpu_idle+0xf4/0x120) from [<c07e47c8>] (start_kernel+0x2bc/0x30c)

Miles Lane has reported seeing similar splats during system suspend.

The mutex in struct led_trigger_cpu appears to have no function: it
resides in a per-cpu data structure which never changes after the
trigger is registered.  So just remove it.

Reported-by: Miles Lane <miles.lane@gmail.com>
Signed-off-by: Nathan Lynch <ntl@pobox.com>
Signed-off-by: Bryan Wu <roc@roc-samos.(none)>
12 years agoLinux 3.7-rc5
Linus Torvalds [Sun, 11 Nov 2012 12:44:33 +0000 (13:44 +0100)]
Linux 3.7-rc5

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Linus Torvalds [Sat, 10 Nov 2012 21:03:49 +0000 (22:03 +0100)]
Merge git://git./linux/kernel/git/davem/net

Pull networking fixes from David Miller:
 "Bug fixes galore, mostly in drivers as is often the case:

  1) USB gadget and cdc_eem drivers need adjustments to their frame size
     lengths in order to handle VLANs correctly.  From Ian Coolidge.

  2) TIPC and several network drivers erroneously call tasklet_disable
     before tasklet_kill, fix from Xiaotian Feng.

  3) r8169 driver needs to apply the WOL suspend quirk to more chipsets,
     fix from Cyril Brulebois.

  4) Fix multicast filters on RTL_GIGA_MAC_VER_35 r8169 chips, from
     Nathan Walp.

  5) FDB netlink dumps should use RTM_NEWNEIGH as the message type, not
     zero.  From John Fastabend.

  6) Fix smsc95xx tx checksum offload on big-endian, from Steve
     Glendinning.

  7) __inet_diag_dump() needs to repsect and report the error value
     returned from inet_diag_lock_handler() rather than ignore it.
     Otherwise if an inet diag handler is not available for a particular
     protocol, we essentially report success instead of giving an error
     indication.  Fix from Cyrill Gorcunov.

  8) When the QFQ packet scheduler sees TSO/GSO packets it does not
     handle things properly, and in fact ends up corrupting it's
     datastructures as well as mis-schedule packets.  Fix from Paolo
     Valente.

  9) Fix oopser in skb_loop_sk(), from Eric Leblond.

  10) CXGB4 passes partially uninitialized datastructures in to FW
      commands, fix from Vipul Pandya.

  11) When we send unsolicited ipv6 neighbour advertisements, we should
      send them to the link-local allnodes multicast address, as per
      RFC4861.  Fix from Hannes Frederic Sowa.

  12) There is some kind of bug in the usbnet's kevent deferral
      mechanism, but more immediately when it triggers an uncontrolled
      stream of kernel messages spam the log.  Rate limit the error log
      message triggered when this problem occurs, as sending thousands
      of error messages into the kernel log doesn't help matters at all,
      and in fact makes further diagnosis more difficult.

      From Steve Glendinning.

  13) Fix gianfar restore from hibernation, from Wang Dongsheng.

  14) The netlink message attribute sizes are wrong in the ipv6 GRE
      driver, it was using the size of ipv4 addresses instead of ipv6
      ones :-) Fix from Nicolas Dichtel."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
  gre6: fix rtnl dump messages
  gianfar: ethernet vanishes after restoring from hibernation
  usbnet: ratelimit kevent may have been dropped warnings
  ipv6: send unsolicited neighbour advertisements to all-nodes
  net: usb: cdc_eem: Fix rx skb allocation for 802.1Q VLANs
  usb: gadget: g_ether: fix frame size check for 802.1Q
  cxgb4: Fix initialization of SGE_CONTROL register
  isdn: Make CONFIG_ISDN depend on CONFIG_NETDEVICES
  cxgb4: Initialize data structures before using.
  af-packet: fix oops when socket is not present
  pkt_sched: enable QFQ to support TSO/GSO
  net: inet_diag -- Return error code if protocol handler is missed
  net: bnx2x: Fix typo in bnx2x driver
  smsc95xx: fix tx checksum offload for big endian
  rtnetlink: Use nlmsg type RTM_NEWNEIGH from dflt fdb dump
  ptp: update adjfreq callback description
  r8169: allow multicast packets on sub-8168f chipset.
  r8169: Fix WoL on RTL8168d/8111d.
  drivers/net: use tasklet_kill in device remove/close process
  tipc: do not use tasklet_disable before tasklet_kill

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
Linus Torvalds [Sat, 10 Nov 2012 20:58:34 +0000 (21:58 +0100)]
Merge git://git./linux/kernel/git/davem/sparc

Pull sparc fixes from David Miller:
 "Several build/bug fixes for sparc, including:

  1) Configuring a mix of static vs.  modular sparc64 crypto modules
     didn't work, remove an ill-conceived attempt to only have to build
     the device match table for these drivers once to fix the problem.

     Reported by Meelis Roos.

  2) Make the montgomery multiple/square and mpmul instructions actually
     usable in 32-bit tasks.  Essentially this involves providing 32-bit
     userspace with a way to use a 64-bit stack when it needs to.

  3) Our sparc64 atomic backoffs don't yield cpu strands properly on
     Niagara chips.  Use pause instruction when available to achieve
     this, otherwise use a benign instruction we know blocks the strand
     for some time.

  4) Wire up kcmp

  5) Fix the build of various drivers by removing the unnecessary
     blocking of OF_GPIO when SPARC.

  6) Fix unintended regression wherein of_address_to_resource stopped
     being provided.  Fix from Andreas Larsson.

  7) Fix NULL dereference in leon_handle_ext_irq(), also from Andreas
     Larsson."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Fix build with mix of modular vs. non-modular crypto drivers.
  sparc: Support atomic64_dec_if_positive properly.
  of/address: sparc: Declare of_address_to_resource() as an extern function for sparc again
  sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq
  sparc: Add sparc support for platform_get_irq()
  sparc: Allow OF_GPIO on sparc.
  qlogicpti: Fix build warning.
  sparc: Wire up sys_kcmp.
  sparc64: Improvde documentation and readability of atomic backoff code.
  sparc64: Use pause instruction when available.
  sparc64: Fix cpu strand yielding.
  sparc64: Make montmul/montsqr/mpmul usable in 32-bit threads.

12 years agoMerge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 10 Nov 2012 05:59:35 +0000 (06:59 +0100)]
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs fixes from Jeff Layton.

* 'for-linus' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Do not lookup hashed negative dentry in cifs_atomic_open
  cifs: fix potential buffer overrun in cifs.idmap handling code

12 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas...
Linus Torvalds [Sat, 10 Nov 2012 05:58:20 +0000 (06:58 +0100)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/cmarinas/linux-aarch64

Pull arm64 fixes from Catalin Marinas:
 - correct argument type (pgprot_t) when calling __ioremap()
 - PCI_IOBASE virtual address change
 - use architected event for CPU cycle counter
 - fix ELF core dumping
 - select CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
 - missing completion for secondary CPU boot
 - booting on systems with all memory beyond 4GB

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64:
  arm64: mm: fix booting on systems with no memory below 4GB
  arm64: smp: add missing completion for secondary boot
  arm64: compat: select CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
  arm64: elf: fix core dumping definitions for GP and FP registers
  arm64: perf: use architected event for CPU cycle counter
  arm64: Move PCI_IOBASE closer to MODULES_VADDR
  arm64: Use pgprot_t as the last argument when invoking __ioremap()

12 years agoMerge tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 10 Nov 2012 05:56:21 +0000 (06:56 +0100)]
Merge tag 'stable/for-linus-3.7-rc5-tag' of git://git./linux/kernel/git/konrad/xen

Pull Xen fixes from Konrad Rzeszutek Wilk:
 "There are three ARM compile fixes (we forgot to export certain
  functions and if the drivers are built as an module - we go belly-up).

  There is also an mismatch of irq_enter() / exit_idle() calls sequence
  which were fixed some time ago in other piece of codes, but failed to
  appear in the Xen code.

  Lastly a fix for to help in the field with troubleshooting in case we
  cannot get the appropriate parameter and also fallback code when
  working with very old hypervisors."

Bug-fixes:
 - Fix compile issues on ARM.
 - Fix hypercall fallback code for old hypervisors.
 - Print out which HVM parameter failed if it fails.
 - Fix idle notifier call after irq_enter.

* tag 'stable/for-linus-3.7-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
  xen/arm: Fix compile errors when drivers are compiled as modules (export more).
  xen/arm: Fix compile errors when drivers are compiled as modules.
  xen/generic: Disable fallback build on ARM.
  xen/events: fix RCU warning, or Call idle notifier after irq_enter()
  xen/hvm: If we fail to fetch an HVM parameter print out which flag it is.
  xen/hypercall: fix hypercall fallback code for very old hypervisors

12 years agosparc64: Fix build with mix of modular vs. non-modular crypto drivers.
David S. Miller [Sat, 10 Nov 2012 04:53:32 +0000 (20:53 -0800)]
sparc64: Fix build with mix of modular vs. non-modular crypto drivers.

We tried linking in a single built object to hold the device table,
but only works if all of the sparc64 crypto modules get built the same
way (modular vs. non-modular).

Just include the device ID stub into each driver source file so that
the table gets compiled into the correct result in all cases.

Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosparc: Support atomic64_dec_if_positive properly.
David S. Miller [Sat, 10 Nov 2012 03:37:59 +0000 (19:37 -0800)]
sparc: Support atomic64_dec_if_positive properly.

Sparc32 already supported it, as a consequence of using the
generic atomic64 implementation.  And the sparc64 implementation
is rather trivial.

This allows us to set ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE for all
of sparc, and avoid the annoying warning from lib/atomic64_test.c

Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoof/address: sparc: Declare of_address_to_resource() as an extern function for sparc...
Andreas Larsson [Tue, 6 Nov 2012 00:12:03 +0000 (00:12 +0000)]
of/address: sparc: Declare of_address_to_resource() as an extern function for sparc again

This bug-fix makes sure that of_address_to_resource is defined extern for sparc
so that the sparc-specific implementation of of_address_to_resource() is once
again used when including include/linux/of_address.h in a sparc context. A
number of drivers in mainline relies on this function working for sparc.

The bug was introduced in a850a7554442f08d3e910c6eeb4ee216868dda1e, "of/address:
add empty static inlines for !CONFIG_OF". Contrary to that commit title, the
static inlines are added for !CONFIG_OF_ADDRESS, and CONFIG_OF_ADDRESS is never
defined for sparc. This is good behavior for the other functions in
include/linux/of_address.h, as the extern functions defined in
drivers/of/address.c only gets linked when OF_ADDRESS is configured. However,
for of_address_to_resource there exists a sparc-specific implementation in
arch/sparc/arch/sparc/kernel/of_device_common.c

Solution suggested by: Sam Ravnborg <sam@ravnborg.org>

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq
Andreas Larsson [Tue, 30 Oct 2012 00:09:46 +0000 (00:09 +0000)]
sparc32, leon: Check for existent irq_map entry in leon_handle_ext_irq

If an irq is being unlinked concurrently with leon_handle_ext_irq,
irq_map[eirq] might be null in leon_handle_ext_irq. Make sure that
this is not dereferenced.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agosparc: Add sparc support for platform_get_irq()
Andreas Larsson [Mon, 29 Oct 2012 23:26:56 +0000 (23:26 +0000)]
sparc: Add sparc support for platform_get_irq()

This adds sparc support for platform_get_irq that in the normal case use
platform_get_resource() to get an irq. This standard approach fails for sparc as
there are no resources of type IORESOURCE_IRQ for irqs for sparc.

Cross platform drivers can then use this standard platform function and work on
sparc instead of having to have a special case for sparc.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agogre6: fix rtnl dump messages
Nicolas Dichtel [Fri, 9 Nov 2012 05:34:56 +0000 (05:34 +0000)]
gre6: fix rtnl dump messages

Spotted after a code review.
Introduced by c12b395a46646bab69089ce7016ac78177f6001f (gre: Support GRE over
IPv6).

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agogianfar: ethernet vanishes after restoring from hibernation
Wang Dongsheng [Fri, 9 Nov 2012 04:43:51 +0000 (04:43 +0000)]
gianfar: ethernet vanishes after restoring from hibernation

If a gianfar ethernet device is down prior to hibernating a
system, it will no longer be present upon system restore.

For example:

~# ifconfig eth0 down
~# echo disk > /sys/power/state

  <trigger a restore from hibernation>

~# ifconfig eth0 up
SIOCSIFFLAGS: No such device

This happens because the restore function bails out early upon
finding devices that were not up at hibernation.  In doing so,
it never gets to the netif_device_attach call at the end of
the restore function.  Adding the netif_device_attach as done
here also makes the gfar_restore code consistent with what is
done in the gfar_resume code.

Cc: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agousbnet: ratelimit kevent may have been dropped warnings
Steve Glendinning [Thu, 8 Nov 2012 06:26:21 +0000 (06:26 +0000)]
usbnet: ratelimit kevent may have been dropped warnings

when something goes wrong, a flood of these messages can be
generated by usbnet (thousands per second).  This doesn't
generally *help* the condition so this patch ratelimits the
rate of their generation.

There's an underlying problem in usbnet's kevent deferral
mechanism which needs fixing, specifically that events *can*
get dropped and not handled.  This patch doesn't address this,
but just mitigates fallout caused by the current implemention.

Signed-off-by: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoipv6: send unsolicited neighbour advertisements to all-nodes
Hannes Frederic Sowa [Tue, 6 Nov 2012 16:18:41 +0000 (16:18 +0000)]
ipv6: send unsolicited neighbour advertisements to all-nodes

As documented in RFC4861 (Neighbor Discovery for IP version 6) 7.2.6.,
unsolicited neighbour advertisements should be sent to the all-nodes
multicast address.

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
12 years agoMerge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Linus Torvalds [Fri, 9 Nov 2012 20:35:51 +0000 (21:35 +0100)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux

Pull drm fixes (again) from Dave Airlie:
 "dropped the ball on a vmware patch, so two more fixes for vmwgfx are
  here, one for hibernate issue, one for a BUG trigger."

* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
  drm/vmwgfx: Fix a case where the code would BUG when trying to pin GMR memory
  drm/vmwgfx: Fix hibernation device reset

12 years agoMerge tag '3.7-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Linus Torvalds [Fri, 9 Nov 2012 20:33:53 +0000 (21:33 +0100)]
Merge tag '3.7-pci-fixes' of git://git./linux/kernel/git/helgaas/pci

Pull PCI fixes from Bjorn Helgaas:
 "Power management:
    - PCI/PM: Fix proc config reg access for D3cold and bridge
      suspending
    - PCI/PM: Resume device before shutdown
    - PCI/PM: Fix deadlock when unbinding device if parent in D3cold
  Hotplug:
    -  PCI/portdrv: Don't create hotplug slots unless port supports
       hotplug"

* tag '3.7-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI/portdrv: Don't create hotplug slots unless port supports hotplug
  PCI/PM: Fix proc config reg access for D3cold and bridge suspending
  PCI/PM: Resume device before shutdown
  PCI/PM: Fix deadlock when unbinding device if parent in D3cold