Pull ARM fixes from Russell King:
"Nothing too disasterous, the biggest thing being the removal of the
regulator support for vcore in the AMBA driver; only one SoC was using
this and it got broken during the last merge window, which then
started causing problems for other people. Mutual agreement was
reached for it to be removed."

* 'fixes' of git://git.linaro.org/people/rmk/linux-arm:
ARM: 7386/1: jump_label: fixup for rename to static_key
ARM: 7384/1: ThumbEE: Disable userspace TEEHBR access for !CONFIG_ARM_THUMBEE
ARM: 7382/1: mm: truncate memory banks to fit in 4GB space for classic MMU
ARM: 7359/2: smp_twd: Only wait for reprogramming on active cpus
ARM: 7383/1: nommu: populate vectors page from paging_init
ARM: 7381/1: nommu: fix typo in mm/Kconfig
ARM: 7380/1: DT: do not add a zero-sized memory property
ARM: 7379/1: DT: fix atags_to_fdt() second call site
ARM: 7366/3: amba: Remove AMBA level regulator support
ARM: 7377/1: vic: re-read status register before dispatching each IRQ handler
ARM: 7368/1: fault.c: correct how the tsk->[maj|min]_flt gets incremented

The 'max' range needs to be unsigned, since the size of the user address
space is bigger than 2GB.

We know that 'count' is positive in 'long' (that is checked in the
caller), so we will truncate 'max' down to something that fits in a
signed long, but before we actually do that, that comparison needs to be
done in unsigned.

Bug introduced in commit 92ae03f2ef99 ("x86: merge 32/64-bit versions of
'strncpy_from_user()' and speed it up"). On x86-64 you can't trigger
this, since the user address space is much smaller than 63 bits, and on
x86-32 it works in practice, since you would seldom hit the strncpy
limits anyway.

I had actually tested the corner-cases, I had only tested them on
x86-64. Besides, I had only worried about the case of a pointer *close*
to the end of the address space, rather than really far away from it ;)

This also changes the "we hit the user-specified maximum" to return
'res', for the trivial reason that gcc seems to generate better code
that way. 'res' and 'count' are the same in that case, so it really
doesn't matter which one we return.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

c5905afb0 ("static keys: Introduce 'struct static_key'...") renamed
struct jump_label_key to struct static_key. Fixup ARM for this to
eliminate these build warnings:

include/linux/jump_label.h:113:2:
warning: passing argument 1 of 'arch_static_branch' from incompatible pointer type
include/asm/jump_label.h:17:82:
note: expected 'struct jump_label_key *' but argument is of type 'struct static_key *'

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Commit 26f41062f28d ("PCI: check for pci bar restore completion and
retry") attempted to address problems with PCI BAR restoration on
systems where FLR had not been completed before pci_restore_state() was
called, but it did that in an utterly wrong way.

First off, instead of retrying the writes for the BAR registers only, it
did that for all of the PCI config space of the device, including the
status register (whose value after the write quite obviously need not be
the same as the written one). Second, it added arbitrary delay to
pci_restore_state() even for systems where the PCI config space
restoration was successful at first attempt. Finally, the mdelay(10) it
added to every iteration of the writing loop was way too much of a delay
for any reasonable device.

All of this actually caused resume failures for some devices on Mikko's
system.

To fix the regression, make pci_restore_state() only retry the writes
for BAR registers and only wait if the first read from the register
doesn't return the written value. Additionaly, make it wait for 1 ms,
instead of 10 ms, after every failing attempt to write into config
space.

Reported-by: Mikko Vinni <mmvinni@yahoo.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Currently when ThumbEE is not enabled (!CONFIG_ARM_THUMBEE) the ThumbEE
register states are not saved/restored at context switch. The default state
of the ThumbEE Ctrl register (TEECR) allows userspace accesses to the
ThumbEE Base Handler register (TEEHBR). This can cause unexpected behaviour
when people use ThumbEE on !CONFIG_ARM_THUMBEE kernels, as well as allowing
covert communication - eg between userspace tasks running inside chroot
jails.

This patch sets up TEECR in order to prevent user-space access to TEEHBR
when !CONFIG_ARM_THUMBEE. In this case, tasks are sent SIGILL if they try to
access TEEHBR.

Cc: stable@vger.kernel.org
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Pull "ARM: a few more SoC fixes for 3.4-rc" from Olof Johansson:
- A handful of warning and build fixes for Qualcomm MSM
- Build/warning and bug fixes for Samsung Exynos
- A fix from Rob Herring that removes misplaced interrupt-parent
properties from a few device trees
- A fix to OMAP dealing with cpufreq build errors, removing some of the
offending code since it was redundant anyway

* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: OMAP: clock: cleanup CPUfreq leftovers, fix build errors
ARM: dts: remove blank interrupt-parent properties
ARM: EXYNOS: Fix Kconfig dependencies for device tree enabled machine files
ARM: EXYNOS: Remove broken config values for touchscren for NURI board
ARM: EXYNOS: set fix xusbxti clock for NURI and Universal210 boards
ARM: EXYNOS: fix regulator name for NURI board
ARM: SAMSUNG: make SAMSUNG_PM_DEBUG select DEBUG_LL
ARM: msm: Fix section mismatches in proc_comm.c
video: msm: Fix section mismatches in mddi.c
arm: msm: trout: fix compile failure
arm: msm: halibut: remove unneeded fixup
ARM: EXYNOS: Add PDMA and MDMA physical base address defines
ARM: S5PV210: Fix compiler warning in dma.c file
ARM: EXYNOS: Fix compile error in exynos5250-cpufreq.c
ARM: EXYNOS: Add missing definition for IRQ_I2S0
ARM: S5PV210: fix unused LDO supply field from wm8994_pdata

If a bank of memory spanning the 4GB boundary is added on a !CONFIG_LPAE
kernel then we will hang early during boot since the memory bank will
have wrapped around to zero.

This patch truncates memory banks for !LPAE configurations when the end
address is not representable in 32 bits.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Pull another round of sound fixes from Takashi Iwai:
"A few regression fixes for Realtek HD-audio codecs, mainly specific to
some laptop models."

* tag 'sound-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek - Fix mem leak (and rid us of trailing whitespace).
ALSA: hda/realtek - Add quirk for Mac Pro 5,1 machines
ALSA: hda/realtek - Add a fixup entry for Acer Aspire 8940G
ALSA: hda/realtek - Fix GPIO1 setup for Acer Aspire 4930 & co
ALSA: hda/realtek - Add a few ALC882 model strings back

* 'v3.4-samsung-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Fix Kconfig dependencies for device tree enabled machine files
ARM: EXYNOS: Remove broken config values for touchscren for NURI board
ARM: EXYNOS: set fix xusbxti clock for NURI and Universal210 boards
ARM: EXYNOS: fix regulator name for NURI board
ARM: SAMSUNG: make SAMSUNG_PM_DEBUG select DEBUG_LL
ARM: EXYNOS: Add PDMA and MDMA physical base address defines
ARM: S5PV210: Fix compiler warning in dma.c file
ARM: EXYNOS: Fix compile error in exynos5250-cpufreq.c
ARM: EXYNOS: Add missing definition for IRQ_I2S0
ARM: S5PV210: fix unused LDO supply field from wm8994_pdata

During booting of cpu1, there is a short window where cpu1
is online, but not active where cpu1 is occupied by waiting
to become active. If cpu0 then decides to schedule something
on cpu1 and wait for it to complete, before cpu0 has set
cpu1 active, we have a deadlock.

Typically it's this CPU frequency transition that happens at
this time, so let's just not wait for it to happen, it will
happen whenever the CPU eventually comes online instead.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@kernel.org
Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Reviewed-by: Rickard Andersson <rickard.andersson@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Commit 18a4d0a22ed6 ("[SCSI] Handle disk devices which can not process
medium access commands") introduced a bug in which we would attempt to
dereference the scsi driver even when the device had no ULD attached.

Ensure that a driver is registered and make the driver accessor function
more resilient to errors during device discovery.

Reported-by: Elric Fu <elricfu1@gmail.com>
Reported-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

In sound/pci/hda/patch_realtek.c::alc_auto_fill_dac_nids(), in the
'for (;;)' loop, if the 'badness' value returned from
fill_and_eval_dacs() is negative, then we'll return from the function
without freeing the memory we allocated for 'best_cfg', thus leaking.
Fix the leak by kfree()'ing the memory when badness is negative.

While I was there I also noticed some trailing whitespace in the
function that I removed (along with all other trailing whitespace in
the file) - it didn't seem worth-while to do that as two patches, so I
hope it's OK that I just did it all as one patch.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Now that we have OPP layer, and OMAP CPUfreq driver is using it, we no
longer need/use the clock framework code for filling up CPUfreq
tables. Remove it.

Removing this code also eliminates build errors when CPU_FREQ_TABLE
support is not enabled.

Thanks to Russell King for pointing out the parts I missed under
plat-omap in the original version and also pointing out the build
errors when CPUFREQ_TABLE support was not enabled.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kevin Hilman <khilman@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

Add config dependency for Exynos4 and Exynos5 device tree enabled machine
files on config options ARCH_EXYNOS4 and ARCH_EXYNOS5 respectively.
Enabling machine support without proper ARCH support enabled is incorrect.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Commit 94e5a85b ("ARM: earlier initialization of vectors page") made it
the responsibility of paging_init to initialise the vectors page.

This patch adds a call to early_trap_init for the !CONFIG_MMU case,
placing the vectors at CONFIG_VECTORS_BASE.

Cc: Jonathan Austin <jonathan.austin@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Pull perf tool fixes from Ingo Molnar.

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf kvm: Finding struct machine fails for PERF_RECORD_MMAP
perf annotate: Validate addr in symbol__inc_addr_samples
perf hists browser: Fix NULL deref in hists browsing code
perf hists: Catch and handle out-of-date hist entry maps.
perf annotate: Fix hist decay
perf top: Add intel_idle to the skip list

A user reported that setting model=imac24 used to allow sound to work on their
Mac Pro 5,1 machine. Commit 5671087ffa "Move ALC885 macpro and imac24 models
to auto-parser" removed this model option. All Mac machines are now explicitly
handled with a quirk and the auto-parser. This adds a quirk for the device
found on the Mac Pro 5,1 machines.

This (partially) fixes https://bugzilla.redhat.com/show_bug.cgi?id=808559

[sorted the new entry in the ID number order by tiwai]

Reported-by: Gabriel Somlo <somlo@cmu.edu>
Signed-off-by: Josh Boyer <jwboyer@redhat.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

These were incorrectly introduced and can cause problems for of_irq_init.

The correct way to define a root controller is no interrupt-parent set at
all or the interrupt-parent is set to the root controller itself when
inherited from a parent node.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

The atmel_mxt_ts driver has been extended to support more 'configuration
objects' in commit 81c88a711 ("Input: atmel_mxt_ts - update object list"),
what broke the configuration values for NURI board. These values are
optional anyway, so remove them to get the driver working correctly.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

The description for the CPU_HIGH_VECTOR Kconfig option for nommu builds
doesn't make any sense.

This patch fixes up the trivial grammatical error.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

GCC's NULL is actually __null, which allows detecting some questionable
NULL usage and warn about it. Moreover each platform/compiler should
have its own stddef.h anyway (which is different from linux/stddef.h).

So there's no good reason to leak kernel's NULL to userspace and
override what the compiler provides.

Signed-off-by: Luboš Luňák <l.lunak@suse.cz>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Pull various perf tooling fixes from Arnaldo Carvalho de Melo.

It's compatible with 8930G.
Using the same fixup gives the proper 5.1 sound back.

Reported-and-tested-by: Dany Martineau <dany.luc.martineau@gmail.com>
Cc: <stable@kernel.org> [v3.3+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>

From David Brown:
"Here are some fixes for msm that fix problems caused by the latest
ARM code. The ones from Daniel remove unneeded fixups that now
cause compilation failures. Mine fix section mismatches, that were
incompletely fixed earlier."

* 'msm-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
ARM: msm: Fix section mismatches in proc_comm.c
video: msm: Fix section mismatches in mddi.c
arm: msm: trout: fix compile failure
arm: msm: halibut: remove unneeded fixup

On some versions of NURI and UniversalC210 boards, camera clocks are
routed directly to xusbxti clock source. This patch sets the correct
value for this clock to let usb and camera sensors to work correctly and
avoid division by zero on driver's probe.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

Some bootloaders are broken enough to expose an ATAG_MEM with
a null size. Converting such tag to a memory node leads to
an unbootable system.

Skip over zero sized ATAG_MEM to avoid this situation.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Pull system.h fixups for less common arch's from Paul Gortmaker:
"Here is what is hopefully the last of the system.h related fixups.

The fixes for Alpha and ia64 are code relocations consistent with what
was done for the more mainstream architectures. Note that the
diffstat lines removed vs lines added are not the same since I've
fixed some of the whitespace issues in the relocated code blocks.
However they are functionally the same. Compile tested locally, plus
these two have been in linux-next for a while.

There is also a trivial one line system.h related fix for the Tilera
arch from Chris Metcalf to fix an implict include.."

* 'systemh-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
irq_work: fix compile failure on tile from missing include
ia64: populate the cmpxchg header with appropriate code
alpha: fix build failures from system.h dismemberment

Pull infiniband fix from Roland Dreier:
"Add a fix for a bug hit by Alexey Shvetsov in ib_srtp that hits on
non-mlx4 hardware."

* tag 'srpt-srq-type' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/srpt: Set srq_type to IB_SRQT_BASIC

Running 'perf kvm --host --guest --guestmount /tmp/guestmount record -a -g -- sleep 2'

Was resulting in a segfault. For event type PERF_RECORD_MMAP,
event->ip.pid is being used in perf_session__find_machine_for_cpumode,
which is not correct.

The event->ip.pid field happens to be 0 in this case and results in
returning a NULL machine object. Finally, access to self->pid in
machine__mmap_name, results in a segfault later.

For PERF_RECORD_MMAP type, pass event->mmap.pid.

Signed-off-by: Nikunj A. Dadhania <nikunj@linux.vnet.ibm.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Nikunj A. Dadhania <nikunj@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/20120409081835.10576.22018.stgit@abhimanyu.in.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Add GPIO1 setup explicitly for Acer Aspire 493x & co.
This could be set by alc_auto_init_amp(), but it's safer to set it
more explicitly in the fixup table.

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

The change
commit 4416e9eb0b4859b3d28016c5fd0a609bdcbc8a2a
Author: Gregory Bean <gbean@codeaurora.org>
Date: Wed Jul 28 10:22:12 2010 -0700

arm: msm: Fix section mismatch in smd.c.

fixes a section mismatch between the board file and the smd driver's
probe function, however, it misses the additional mismatches between
the probe function and some routines it calls. Fix these up as well.

Signed-off-by: David Brown <davidb@codeaurora.org>

Regulator names should not contain slash to avoid issues with debugfs.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

atags_to_fdt() returns 1 when it fails to find a valid FDT signature.
The CONFIG_ARM_ATAG_DTB_COMPAT code is supposed to retry with another
location, but only does so when the initial call doesn't fail.

Fix this by using the correct condition in the assembly code.

Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Pull fbdev fixes from Florian Tobias Schandinat:
- a compile fix for au1*fb
- a fix to make kyrofb usable on x86_64
- a fix for uvesafb to prevent an oops due to NX-protection

"The fix for kyrofb is a bit large but it's just replacing "unsigned
long" by "u32" for 64 bit compatibility."

* tag 'fbdev-fixes-for-3.4-1' of git://github.com/schandinat/linux-2.6:
video:uvesafb: Fix oops that uvesafb try to execute NX-protected page
fbdev: fix au1*fb builds
kyrofb: fix on x86_64

Building with IRQ_WORK configured results in

kernel/irq_work.c: In function ‘irq_work_run’:
kernel/irq_work.c:110: error: implicit declaration of function ‘irqs_disabled’

The appropriate header just needs to be included.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

We've now fixed IS_ENABLED() and friends to not require any special
"__enabled_" prefixed versions of the normal Kconfig options, so delete
the last traces of them being generated.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Since commit 96104eda0169 ("RDMA/core: Add SRQ type field"), kernel
users of SRQs need to specify srq_type = IB_SRQT_BASIC in struct
ib_srq_init_attr, or else most low-level drivers will fail in
when srpt_add_one() calls ib_create_srq() and gets -ENOSYS.

(mlx4_ib works OK nearly all of the time, because it just needs
srq_type != IB_SRQT_XRC. And apparently nearly everyone using
ib_srpt is using mlx4 hardware)

Reported-by: Alexey Shvetsov <alexxy@gentoo.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>

This routine was checking only if the provided address was after
sym->end, not if it was before sym->start.

Fix that by checking for both and return in both cases -ERANGE, so that
tools can communicate this to the user properly, or if they chose so, to
abort.

This problem was reported previously but the fixes involved either doing
what was being done for the > end case, i.e. silently drop the sample,
returning 0, or aborting at this function, which is in a lib (or better,
is slated to be at some point) and shouldn't abort.

The 'report' tool already checks this value and uses pr_debug to warn
the user.

This patch makes the 'top' tool check it too and warn once per map where
such range problem takes place.

Reported-by: David Miller <davem@davemloft.net>
Reported-by: Sorin Dumitru <dumitru.sorin87@gmail.com>
Reported-by: Stephane Eranian <eranian@google.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-lw8gs7p9i9nhldilo82tzpne@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Since there are still many Acer models that might not be covered by
the current fixup table, let's add back a few typical model names so
that user can test the fixup without recompiling.

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

Pull two more small regmap fixes from Mark Brown:
- Now we have users for it that aren't running Android it turns out
that regcache_sync_region() is much more useful to drivers if it's
exported for use by modules. Who knew?
- Make sure we don't divide by zero when doing debugfs dumps of
rbtrees, not visible up until now because everything was providing at
least some cache on startup.

* tag 'regmap-3.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: prevent division by zero in rbtree_show
regmap: Export regcache_sync_region()

The change
commit 461cbe77d0a4f887c33a3a95ea68a7daf23b4302
Author: Gregory Bean <gbean@codeaurora.org>
Date: Wed Jul 28 10:22:13 2010 -0700

video: msm: Fix section mismatch in mddi.c.

fixes a section mismatch between the board file and the driver's probe
function, however, it misses the additional mismatches between the
probe function and some routines it calls. Fix these up as well.

Signed-off-by: David Brown <davidb@codeaurora.org>

When selecting SAMSUNG_PM_DEBUG, it complains about a missing printascii()
function if you do not select DEBUG_LL, so make the former select the latter.

Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

The AMBA bus regulator support is being used to model on/off switches
for power domains which isn't terribly idiomatic for modern kernels with
the generic power domain code and creates integration problems on platforms
which don't use regulators for their power domains as it's hard to tell
the difference between a regulator that is needed but failed to be provided
and one that isn't supposed to be there (though DT does make that easier).

Platforms that wish to use the regulator API to manage their power domains
can indirect via the power domain interface.

This feature is only used with the vape supply of the db8500 PRCMU
driver which supplies the UARTs and MMC controllers, none of which have
support for managing vcore at runtime in mainline (only pl022 SPI
controller does). Update that supply to have an always_on constraint
until the power domain support for the system is updated so that it is
enabled for these users, this is likely to have no impact on practical
systems as probably at least one of these devices will be active and
cause AMBA to hold the supply on anyway.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Pull the minimal btrfs branch from Chris Mason:
"We have a use-after-free in there, along with errors when mount -o
discard is enabled, and a BUG_ON(we should compile with UP more
often)."

* 'for-linus-min' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: use commit root when loading free space cache
Btrfs: fix use-after-free in __btrfs_end_transaction
Btrfs: check return value of bio_alloc() properly
Btrfs: remove lock assert from get_restripe_target()
Btrfs: fix eof while discarding extents
Btrfs: fix uninit variable in repair_eb_io_failure
Revert "Btrfs: increase the global block reserve estimates"

This patch fix the oops below that catched in my machine

[ 81.560602] uvesafb: NVIDIA Corporation, GT216 Board - 0696a290, Chip Rev , OEM: NVIDIA, VBE v3.0
[ 81.609384] uvesafb: protected mode interface info at c000:d350
[ 81.609388] uvesafb: pmi: set display start = c00cd3b3, set palette = c00cd40e
[ 81.609390] uvesafb: pmi: ports = 3b4 3b5 3ba 3c0 3c1 3c4 3c5 3c6 3c7 3c8 3c9 3cc 3ce 3cf 3d0 3d1 3d2 3d3 3d4 3d5 3da
[ 81.614558] uvesafb: VBIOS/hardware doesn't support DDC transfers
[ 81.614562] uvesafb: no monitor limits have been set, default refresh rate will be used
[ 81.614994] uvesafb: scrolling: ypan using protected mode interface, yres_virtual=4915
[ 81.744147] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
[ 81.744153] BUG: unable to handle kernel paging request at c00cd3b3
[ 81.744159] IP: [<c00cd3b3>] 0xc00cd3b2
[ 81.744167] *pdpt = 00000000016d6001 *pde = 0000000001c7b067 *pte = 80000000000cd163
[ 81.744171] Oops: 0011 [#1] SMP
[ 81.744174] Modules linked in: uvesafb(+) cfbcopyarea cfbimgblt cfbfillrect
[ 81.744178]
[ 81.744181] Pid: 3497, comm: modprobe Not tainted 3.3.0-rc4NX+ #71 Acer Aspire 4741 /Aspire 4741
[ 81.744185] EIP: 0060:[<c00cd3b3>] EFLAGS: 00010246 CPU: 0
[ 81.744187] EIP is at 0xc00cd3b3
[ 81.744189] EAX: 00004f07 EBX: 00000000 ECX: 00000000 EDX: 00000000
[ 81.744191] ESI: f763f000 EDI: f763f6e8 EBP: f57f3a0c ESP: f57f3a00
[ 81.744192] DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068
[ 81.744195] Process modprobe (pid: 3497, ti=f57f2000 task=f748c600 task.ti=f57f2000)
[ 81.744196] Stack:
[ 81.744197] f82512c5 f759341c 00000000 f57f3a30 c124a9bc 00000001 00000001 000001e0
[ 81.744202] f8251280 f763f000 f7593400 00000000 f57f3a40 c12598dd f5c0c000 00000000
[ 81.744206] f57f3b10 c1255efe c125a21a 00000006 f763f09c 00000000 c1c6cb60 f7593400
[ 81.744210] Call Trace:
[ 81.744215] [<f82512c5>] ? uvesafb_pan_display+0x45/0x60 [uvesafb]
[ 81.744222] [<c124a9bc>] fb_pan_display+0x10c/0x160
[ 81.744226] [<f8251280>] ? uvesafb_vbe_find_mode+0x180/0x180 [uvesafb]
[ 81.744230] [<c12598dd>] bit_update_start+0x1d/0x50
[ 81.744232] [<c1255efe>] fbcon_switch+0x39e/0x550
[ 81.744235] [<c125a21a>] ? bit_cursor+0x4ea/0x560
[ 81.744240] [<c129b6cb>] redraw_screen+0x12b/0x220
[ 81.744245] [<c128843b>] ? tty_do_resize+0x3b/0xc0
[ 81.744247] [<c129ef42>] vc_do_resize+0x3d2/0x3e0
[ 81.744250] [<c129efb4>] vc_resize+0x14/0x20
[ 81.744253] [<c12586bd>] fbcon_init+0x29d/0x500
[ 81.744255] [<c12984c4>] ? set_inverse_trans_unicode+0xe4/0x110
[ 81.744258] [<c129b378>] visual_init+0xb8/0x150
[ 81.744261] [<c129c16c>] bind_con_driver+0x16c/0x360
[ 81.744264] [<c129b47e>] ? register_con_driver+0x6e/0x190
[ 81.744267] [<c129c3a1>] take_over_console+0x41/0x50
[ 81.744269] [<c1257b7a>] fbcon_takeover+0x6a/0xd0
[ 81.744272] [<c12594b8>] fbcon_event_notify+0x758/0x790
[ 81.744277] [<c10929e2>] notifier_call_chain+0x42/0xb0
[ 81.744280] [<c1092d30>] __blocking_notifier_call_chain+0x60/0x90
[ 81.744283] [<c1092d7a>] blocking_notifier_call_chain+0x1a/0x20
[ 81.744285] [<c124a5a1>] fb_notifier_call_chain+0x11/0x20
[ 81.744288] [<c124b759>] register_framebuffer+0x1d9/0x2b0
[ 81.744293] [<c1061c73>] ? ioremap_wc+0x33/0x40
[ 81.744298] [<f82537c6>] uvesafb_probe+0xaba/0xc40 [uvesafb]
[ 81.744302] [<c12bb81f>] platform_drv_probe+0xf/0x20
[ 81.744306] [<c12ba558>] driver_probe_device+0x68/0x170
[ 81.744309] [<c12ba731>] __device_attach+0x41/0x50
[ 81.744313] [<c12b9088>] bus_for_each_drv+0x48/0x70
[ 81.744316] [<c12ba7f3>] device_attach+0x83/0xa0
[ 81.744319] [<c12ba6f0>] ? __driver_attach+0x90/0x90
[ 81.744321] [<c12b991f>] bus_probe_device+0x6f/0x90
[ 81.744324] [<c12b8a45>] device_add+0x5e5/0x680
[ 81.744329] [<c122a1a3>] ? kvasprintf+0x43/0x60
[ 81.744332] [<c121e6e4>] ? kobject_set_name_vargs+0x64/0x70
[ 81.744335] [<c121e6e4>] ? kobject_set_name_vargs+0x64/0x70
[ 81.744339] [<c12bbe9f>] platform_device_add+0xff/0x1b0
[ 81.744343] [<f8252906>] uvesafb_init+0x50/0x9b [uvesafb]
[ 81.744346] [<c100111f>] do_one_initcall+0x2f/0x170
[ 81.744350] [<f82528b6>] ? uvesafb_is_valid_mode+0x66/0x66 [uvesafb]
[ 81.744355] [<c10c6994>] sys_init_module+0xf4/0x1410
[ 81.744359] [<c1157fc0>] ? vfsmount_lock_local_unlock_cpu+0x30/0x30
[ 81.744363] [<c144cb10>] sysenter_do_call+0x12/0x36
[ 81.744365] Code: f5 00 00 00 32 f6 66 8b da 66 d1 e3 66 ba d4 03 8a e3 b0 1c 66 ef b0 1e 66 ef 8a e7 b0 1d 66 ef b0 1f 66 ef e8 fa 00 00 00 61 c3 <60> e8 c8 00 00 00 66 8b f3 66 8b da 66 ba d4 03 b0 0c 8a e5 66
[ 81.744388] EIP: [<c00cd3b3>] 0xc00cd3b3 SS:ESP 0068:f57f3a00
[ 81.744391] CR2: 00000000c00cd3b3
[ 81.744393] ---[ end trace 18b2c87c925b54d6 ]---

Signed-off-by: Wang YanQing <udknight@gmail.com>
Cc: Michal Januszewski <spock@gentoo.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: stable@vger.kernel.org

commit 93f378883cecb9dcb2cf5b51d9d24175906659da

"Fix ia64 build errors (fallout from system.h disintegration)"

introduced arch/ia64/include/asm/cmpxchg.h as a temporary
build fix and stated:

"... leave the migration of xchg() and cmpxchg() to this new
header file for a future patch."

Migrate the appropriate chunks from asm/intrinsics.h and fix
the whitespace issues in the migrated chunk.

Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>

This reverts commit 953742c8fe8ac45be453fee959d7be40cd89f920.

Dumping two lines into autoconf.h for all existing Kconfig options
results in a giant file (~16k lines) we have to process each time we
compile something. We've weaned IS_ENABLED() and similar off of
requiring the __enabled_ definitions so now we can revert the change
which caused all the extra lines.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

If there's an event with no samples in data file, the perf report
command can segfault after entering the event details menu.

Following steps reproduce the issue:

# ./perf record -e syscalls:sys_enter_kexec_load,syscalls:sys_enter_mmap ls
# ./perf report
# enter '0 syscalls:sys_enter_kexec_load' menu
# pres ENTER twice

Above steps are valid assuming ls wont run kexec.. ;)

The check for sellection to be NULL is missing. The fix makes sure it's
being check. Above steps now endup with menu being displayed allowing
'Exit' as the only option.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1333570898-10505-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Also remove two warnings when CONFIG_SND_DEBUG is not set:

sound/pci/hda/patch_hdmi.c: In function ‘hdmi_intrinsic_event’:
sound/pci/hda/patch_hdmi.c:761:6: warning: unused variable ‘eldv’ [-Wunused-variable]
sound/pci/hda/patch_hdmi.c:760:6: warning: unused variable ‘pd’ [-Wunused-variable]

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Pull a few KVM fixes from Avi Kivity:
"A bunch of powerpc KVM fixes, a guest and a host RCU fix (unrelated),
and a small build fix."

* 'kvm-updates/3.4' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Resolve RCU vs. async page fault problem
KVM: VMX: vmx_set_cr0 expects kvm->srcu locked
KVM: PMU: Fix integer constant is too large warning in kvm_pmu_set_msr()
KVM: PPC: Book3S: PR: Fix preemption
KVM: PPC: Save/Restore CR over vcpu_run
KVM: PPC: Book3S HV: Save and restore CR in __kvmppc_vcore_entry
KVM: PPC: Book3S HV: Fix kvm_alloc_linear in case where no linears exist
KVM: PPC: Book3S: Compile fix for ppc32 in HIOR access code

If there are no nodes in the cache, nodes will be 0, so calculating
"registers / nodes" will cause division by zero.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org

Fixes the following warnings,

arch/arm/mach-msm/board-trout.c: In function 'trout_init':
arch/arm/mach-msm/board-trout.c:71: error: 'system_rev' undeclared (first use in this function)
arch/arm/mach-msm/board-trout.c:71: error: (Each undeclared identifier is reported only once
arch/arm/mach-msm/board-trout.c:71: error: for each function it appears in.)

and

arch/arm/mach-msm/board-trout-panel.c: In function 'trout_init_panel':
arch/arm/mach-msm/board-trout-panel.c:267: error: 'system_rev' undeclared (first use in this function)
arch/arm/mach-msm/board-trout-panel.c:267: error: (Each undeclared identifier is reported only once
arch/arm/mach-msm/board-trout-panel.c:267: error: for each function it appears in.)

This came in with the following commit 9f97da78bf018206fb623cd351d454af2f105fe0
which removes asm/system.h

Signed-off-by: Daniel Walker <dwalker@fifo99.com>
cc: David Howells <dhowells@redhat.com>
cc: Bryan Huntsman <bryanh@codeaurora.org>
cc: linux-arm-msm@vger.kernel.org
cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: David Brown <davidb@codeaurora.org>

Add PDMA and MDMA physical base address macros which is
require for EXYNOS5 of_dev_auxdata setup.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
[kgene.kim@samsung.com: changed dma channel fo mdma1]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

handle_IRQ may briefly cause interrupts to be re-enabled during soft IRQ
processing on the exit path, leading to nested handling of VIC interrupts.

Since the current code does not re-read the VIC_IRQ_STATUS register, this
can lead to multiple invocations of the same interrupt handler and
spurious interrupts to be reported.

This patch changes the VIC interrupt dispatching code to re-read the
status register each time, avoiding duplicate invocations of the same
handler.

Acked-and-Tested-by: H Hartley Sweeten <hsweeten@visionengravers.com>

Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Pull block driver bits from Jens Axboe:

- A series of fixes for mtip32xx. Most from Asai at Micron, but also
one from Greg, getting rid of the dependency on PCIE_HOTPLUG.

- A few bug fixes for xen-blkfront, and blkback.

- A virtio-blk fix for Vivek, making resize actually work.

- Two fixes from Stephen, making larger transfers possible on cciss.
This is needed for tape drive support.

* 'for-3.4/drivers' of git://git.kernel.dk/linux-block:
block: mtip32xx: remove HOTPLUG_PCI_PCIE dependancy
mtip32xx: dump tagmap on failure
mtip32xx: fix handling of commands in various scenarios
mtip32xx: Shorten macro names
mtip32xx: misc changes
mtip32xx: Add new sysfs entry 'status'
mtip32xx: make setting comp_time as common
mtip32xx: Add new bitwise flag 'dd_flag'
mtip32xx: fix error handling in mtip_init()
virtio-blk: Call revalidate_disk() upon online disk resize
xen/blkback: Make optional features be really optional.
xen/blkback: Squash the discard support for 'file' and 'phy' type.
mtip32xx: fix incorrect value set for drv_cleanup_done, and re-initialize and start port in mtip_restart_port()
cciss: Fix scsi tape io with more than 255 scatter gather elements
cciss: Initialize scsi host max_sectors for tape drive support
xen-blkfront: make blkif_io_lock spinlock per-device
xen/blkfront: don't put bdev right after getting it
xen-blkfront: use bitmap_set() and bitmap_clear()
xen/blkback: Enable blkback on HVM guests
xen/blkback: use grant-table.c hypercall wrappers

A user reported that booting his box up with btrfs root on 3.4 was way
slower than on 3.3 because I removed the ideal caching code. It turns out
that we don't load the free space cache if we're in a commit for deadlock
reasons, but since we're reading the cache and it hasn't changed yet we are
safe reading the inode and free space item from the commit root, so do that
and remove all of the deadlock checks so we don't unnecessarily skip loading
the free space cache. The user reported this fixed the slowness. Thanks,

Tested-by: Calvin Walton <calvin.walton@kepstin.ca>
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>

Commit 1c16697bf9d5b206cb0d2b905a54de5e077296be
("drivers/video/au*fb.c: use devm_ functions) introduced 2 build failures
in the au1100fb and au1200fb drivers, fix them.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>