Merge tag 'pwm/for-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fix from Thierry Reding:
 "A single one-line fix to turn the regmap cache from an RB-tree to a
  flat cache to avoid lockdep and abort issues"

* tag 'pwm/for-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: fsl-ftm: Use flat regmap cache

Pull sound fixes from Takashi Iwai:
 "We've had a very calm development cycle, so far.  Here are the few
  fixes for HD-audio and USB-audio, all of which are small and easy"

* tag 'sound-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix inconsistent monitor_present state until repoll
  ALSA: hda - Fix regression of monitor_present flag in eld proc file
  ALSA: usb-audio: Skip volume controls triggers hangup on Dell USB Dock
  ALSA: hda/realtek - Enable the ALC292 dock fixup on the Thinkpad T460s
  ALSA: sscape: Use correct format identifier for size_t
  ALSA: usb-audio: Add a quirk for Plantronics BT300
  ALSA: usb-audio: Add a sample rate quirk for Phoenix Audio TMX320
  ALSA: hda - Bind with i915 only when Intel graphics is present

Pull mailbox fixes from Jussi Brar:
 "Misc fixes:

  mailbox-test driver:
   - prevent memory leak and another cosmetic change

  mailbox:
   - change the returned error code

  Xgene driver:
   - return -ENOMEM instead of PTR_ERR for failed devm_kzalloc"

* 'mailbox-devel' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
  mailbox: Stop using ENOSYS for anything other than unimplemented syscalls
  mailbox: mailbox-test: Prevent memory leak
  mailbox: mailbox-test: Use more consistent format for calling copy_from_user()
  mailbox: xgene-slimpro: Fix wrong test for devm_kzalloc

Pull f2fs/fscrypto fixes from Jaegeuk Kim:
 "In addition to f2fs/fscrypto fixes, I've added one patch which
  prevents RCU mode lookup in d_revalidate, as Al mentioned.

  These patches fix f2fs and fscrypto based on -rc3 bug fixes in ext4
  crypto, which have not yet been fully propagated as follows.

   - use of dget_parent and file_dentry to avoid crashes
   - disallow RCU-mode lookup in d_invalidate
   - disallow -ENOMEM in the core data encryption path"

* tag 'for-linus-4.6-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  ext4/fscrypto: avoid RCU lookup in d_revalidate
  fscrypto: don't let data integrity writebacks fail with ENOMEM
  f2fs: use dget_parent and file_dentry in f2fs_file_open
  fscrypto: use dget_parent() in fscrypt_d_revalidate()

Pull crypto fixes from Herbert Xu:
 "This fixes an NFS regression caused by the skcipher/hash conversion in
  sunrpc.  It also fixes a build problem in certain configurations with
  bcm63xx"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  hwrng: bcm63xx - fix device tree compilation
  sunrpc: Fix skcipher/shash conversion

Pull keys bugfixes from James Morris:
 "Two bugfixes for Keys related code"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
  ASN.1: fix open failure check on headername
  assoc_array: don't call compare_object() on a node

In commit c4004b02 ("x86: remove the kernel code/data/bss resources
from /proc/iomem") I was hoping to remove the phyiscal kernel address
data from /proc/iomem entirely, but that had to be reverted because some
system programs actually use it.

This limits all the detailed resource information to properly
credentialed users instead.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

The PCI config access checked the file capabilities correctly, but used
the itnernal security capability check rather than the helper function
that is actually meant for that.

The security_capable() has unusual return values and is not meant to be
used elsewhere (the only other use is in the capability checking
functions that we actually intend people to use, and this odd PCI usage
really stood out when looking around the capability code.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

A lot of seqfile users seem to be using things like %pK that uses the
credentials of the current process, but that is actually completely
wrong for filesystem interfaces.

The unix semantics for permission checking files is to check permissions
at _open_ time, not at read or write time, and that is not just a small
detail: passing off stdin/stdout/stderr to a suid application and making
the actual IO happen in privileged context is a classic exploit
technique.

So if we want to be able to look at permissions at read time, we need to
use the file open credentials, not the current ones.  Normal file
accesses can just use "f_cred" (or any of the helper functions that do
that, like file_ns_capable()), but the seqfile interfaces do not have
any such options.

It turns out that seq_file _does_ save away the user_ns information of
the file, though.  Since user_ns is just part of the full credential
information, replace that special case with saving off the cred pointer
instead, and suddenly seq_file has all the permission information it
needs.
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This reverts commit c4004b02.

Sadly, my hope that nobody would actually use the special kernel entries
in /proc/iomem were dashed by kexec.  Which reads /proc/iomem explicitly
to find the kernel base address.  Nasty.

Anyway, that means we can't do the sane and simple thing and just remove
the entries, and we'll instead have to mask them out based on permissions.
Reported-by: NZhengyu Zhang <zhezhang@redhat.com>
Reported-by: NDave Young <dyoung@redhat.com>
Reported-by: NFreeman Zhang <freeman.zhang1992@gmail.com>
Reported-by: NEmrah Demir <ed@abdsec.com>
Reported-by: NBaoquan He <bhe@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Use flat regmap cache to avoid lockdep warning at probe:

[    0.697285] WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:2755 lockdep_trace_alloc+0x15c/0x160()
[    0.697449] DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))

The RB-tree regmap cache needs to allocate new space on first writes.
However, allocations in an atomic context (e.g. when a spinlock is held)
are not allowed. The function regmap_write calls map->lock, which
acquires a spinlock in the fast_io case. Since the pwm-fsl-ftm driver
uses MMIO, the regmap bus of type regmap_mmio is being used which has
fast_io set to true.

The MMIO space of the pwm-fsl-ftm driver is reasonable condense, hence
using the much faster flat regmap cache is anyway the better choice.
Signed-off-by: NStefan Agner <stefan@agner.ch>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: NThierry Reding <thierry.reding@gmail.com>

Pull arch/sh fixes from Rich Felker:
 "Fixes for two arch/sh build regressions that appeared in 4.6-rc1, one
  introduced by me, and one caused by changes elsewhere"

* tag 'sh-fixes-4.6-rc1' of git://git.libc.org/linux-sh:
  sh: fix function signature of cpu_coregroup_mask to match pointer type
  sh: fix smp-shx3 build regression from removal of arch localtimer

Pull m68knommu/coldfire fix from Greg Ungerer:
 "Only a single change that removes a local arch specific gpio bus sysfs
  device that now clashes with the generic gpio bus sysfs device
  interface"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
  m68k/gpio: remove arch specific sysfs bus device

Pull ARM SoC fixes from Olof Johansson:
 "A batch of fixes for -rc4, for various platforms.

  Nothing really substantial and worth pointing out in particular; small
  fixes for various bugs, see shortlog for details"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: sa1100: remove references to the defunct handhelds.org
  bus: uniphier-system-bus: fix condition of overlap check
  ARM: uniphier: drop weird sizeof()
  ARM: dts: am335x-baltos-ir5221: fix cpsw_emac0 link type
  ARM: OMAP: Correct interrupt type for ARM TWD
  ARM: DRA722: Add ID detect for Silicon Rev 2.0
  ARM: dts: am43xx: fix edma memcpy channel allocation
  ARM: dts: AM43x-epos: Fix clk parent for synctimer
  ARM: OMAP2: Fix up interconnect barrier initialization for DRA7
  documentation: Fix pinctrl documentation for Meson8 / Meson8b
  ARM: dts: amlogic: Split pinctrl device for Meson8 / Meson8b
  ARM: mvebu: Correct unit address for linksys
  bus: mvebu-mbus: use %pa to print phys_addr_t
  arm64: dts: vulcan: Update PCI ranges
  ARM: u8500_defconfig: turn on the Synaptics RMI4 driver
  ARM: pxa: fix the number of DMA requestor lines
  ARM: OMAP2+: hwmod: Fix updating of sysconfig register
  ARM: OMAP2+: Use srst_udelay for USB on dm814x

Pull KVM fixes from Radim Krčmář:
 "ARM fixes:
   - Wrong indentation in the PMU code from the merge window
   - A long-time bug occuring with running ntpd on the host, candidate
     for stable
   - Properly handle (and warn about) the unsupported configuration of
     running on systems with less than 40 bits of PA space
   - More fixes to the PM and hotplug notifier stuff from the merge
     window

  x86:
   - leak of guest xcr0 (typically shows up as SIGILL)
   - new maintainer (who is sending the pull request too)
   - fix for merge window regression
   - fix for guest CPUID"

Paolo Bonzini points out:
 "For the record, this tag is signed by me because I prepared the pull
  request.  Further pull requests for 4.6 will be signed and sent out by
  Radim directly"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: mask CPUID(0xD,0x1).EAX against host value
  kvm: x86: do not leak guest xcr0 into host interrupt handlers
  KVM: MMU: fix permission_fault()
  KVM: new maintainer on the block
  arm64: KVM: unregister notifiers in hyp mode teardown path
  arm64: KVM: Warn when PARange is less than 40 bits
  KVM: arm/arm64: Handle forward time correction gracefully
  arm64: KVM: Add braces to multi-line if statement in virtual PMU code

While the previous commit fixed the missing monitor_present flag
update, it may be still in an inconsistent state while the driver
repolls: the flag itself is updated, but the eld_valid flag and the
contents don't follow until the repoll finishes (and may be repeated
for a few times).

The basic problem is that pin_eld->monitor_present is updated in the
caller side.  This should have been updated only in update_eld().  So,
the proper fix is to avoid accessing pin_eld but only spec->temp_eld.
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The commit [bd481285: ALSA: hda - Fix forgotten HDMI
monitor_present update] covered the missing update of monitor_present
flag, but this caused a regression for devices without the i915 eld
notifier.  Since the old code supposed that pin_eld->monitor_present
was updated by the caller side, the hdmi_present_sense_via_verbs()
doesn't update the temporary eld->monitor_present but only
pin_eld->monitor_present, which is now overridden in update_eld().

The fix is to update pin_eld->monitor_present as well before calling
update_eld().

Note that this may still leave monitor_present flag in an inconsistent
state when the driver repolls, but this is at least the old behavior.
More proper fix will follow in the later patch.

Fixes: bd481285 ('ALSA: hda - Fix forgotten HDMI monitor_present update')
Signed-off-by: NHyungwon Hwang <hyungwon.hwang7@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

As Al pointed, d_revalidate should return RCU lookup before using d_inode.
This was originally introduced by:
commit 34286d66 ("fs: rcu-walk aware d_revalidate method").
Reported-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: stable <stable@vger.kernel.org>

Merge tag 'keys-fixes-20160412' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into for-linus

mvebu fixes for 4.6 (part 1)

- fix USB adress register for Linksys Armada 388 based boards
- fix build warning in mvebu-mbus

* tag 'mvebu-fixes-4.6-1' of git://git.infradead.org/linux-mvebu:
  ARM: mvebu: Correct unit address for linksys
  bus: mvebu-mbus: use %pa to print phys_addr_t
Signed-off-by: NOlof Johansson <olof@lixom.net>

The website handhelds.org has been down for a long time and is
likely never coming back online.
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NOlof Johansson <olof@lixom.net>

ARM: pxa: fixes for v4.6

There is only a single fix for dma requestor lines initial
setup, triggered by dmaengine previous fix.

* tag 'pxa-fixes-v4.6' of https://github.com/rjarzmik/linux:
  ARM: pxa: fix the number of DMA requestor lines
Signed-off-by: NOlof Johansson <olof@lixom.net>

Merge tag 'omap-for-v4.6/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes

Fixes for omaps against v4.6-rc1. Mostly minor fixes for the newer
SoCs with few board fixes and a fix for a long time hwmod bug:

- Fix cpsw_emac0 link type for baltos-ir5221
- Fix interrupt type for TWD
- Fix edma memcpy channel allocation for am43x
- Fix am43x-epos sycntimer32k by using the correct assigned clock
- Fix interconnect barrier for dra7
- Fix a long time hwmod bug for updating sysconfig register properly
- Fix flakey booting on dm814x where USB reset needs a delay

And there is one minor change that is not strictly a fix, but is
good to have for proper hardware detection:

- Detect dra7 silicon revision 2.0 properly

* tag 'omap-for-v4.6/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: am335x-baltos-ir5221: fix cpsw_emac0 link type
  ARM: OMAP: Correct interrupt type for ARM TWD
  ARM: DRA722: Add ID detect for Silicon Rev 2.0
  ARM: dts: am43xx: fix edma memcpy channel allocation
  ARM: dts: AM43x-epos: Fix clk parent for synctimer
  ARM: OMAP2: Fix up interconnect barrier initialization for DRA7
  ARM: OMAP2+: hwmod: Fix updating of sysconfig register
  ARM: OMAP2+: Use srst_udelay for USB on dm814x
Signed-off-by: NOlof Johansson <olof@lixom.net>

This patch fixes condition whether the specified address ranges
overlap each other.

Fixes: 4b7f48d3 ("bus: uniphier-system-bus: add UniPhier System Bus driver")
Signed-off-by: NKunihiko Hayashi <hayashi.kunihiko@socionext.com>
Acked-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

My intention was to ioremap a 4-byte register.  Coincidentally enough,
sizeof(SZ_4) equals to SZ_4, but this code is weird anyway.
Signed-off-by: NMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: NOlof Johansson <olof@lixom.net>

This patch fixes the issue introduced by the ext4 crypto fix in a same manner.
For F2FS, however, we flush the pending IOs and wait for a while to acquire free
memory.

Fixes: c9af28fd ("ext4 crypto: don't let data integrity writebacks fail with ENOMEM")
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>

This patch synced with the below two ext4 crypto fixes together.

In 4.6-rc1, f2fs newly introduced accessing f_path.dentry which crashes
overlayfs. To fix, now we need to use file_dentry() to access that field.

Fixes: c0a37d48 ("ext4: use file_dentry()")
Fixes: 9dd78d8c ("ext4: use dget_parent() in ext4_file_open()")
Cc: Miklos Szeredi <mszeredi@redhat.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>

This patch updates fscrypto along with the below ext4 crypto change.

Fixes: 3d43bcfe ("ext4 crypto: use dget_parent() in ext4_d_revalidate()")
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>

This is Dell usb dock audio workaround.
It was fixed the master volume keep lower.

[Some background: the patch essentially skips the controls of a couple
 of FU volumes.  Although the firmware exposes the dB and the value
 information via the usb descriptor, changing the values (we set the
 min volume as default) screws up the device.  Although this has been
 fixed in the newer firmware, the devices are shipped with the old
 firmware, thus we need the workaround in the driver side.  -- tiwai]
Signed-off-by: NKailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

In accordance with e15f431f ("errno.h: Improve ENOSYS's comment") and
91c9afaf ("checkpatch.pl: new instances of ENOSYS are errors") we're
converting from the old meaning of: ENOSYS "Function not implemented" to
a more standard EINVAL.
Reported-by: NSeraphin Bonnaffe <seraphin.bonnaffe@st.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NJassi Brar <jaswinder.singh@linaro.org>

If we set the Signal twice or more, without using it as part of a message,
memory will be re-allocated and the pointer over-written.  Prevent this
potential leak by only allocating memory when there isn't any already.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NJassi Brar <jaswinder.singh@linaro.org>

While we're at it, ensure copy-to location is NULL'ed in the error path.
Suggested-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NJassi Brar <jaswinder.singh@linaro.org>

Pull HID fixes from Jiri Kosina:

 - fix for how scaling linearization is computed in wiimote driver, by
   Cyan Ogilvie

 - endless retry loop fix in generic USB HID core reset-resume handling,
   by Alan Stern

 - two functional fixes affecting particular devices, and oops fix for
   wacom driver, by Jason Gerecke

 - multitouch slot numbering fix from Gabriele Mazzotta

 - a couple more small fixes on top

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: wacom: Support switching from vendor-defined device mode on G9 and G11
  HID: wacom: Initialize hid_data.inputmode to -1
  HID: microsoft: add support for 3 more devices
  HID: multitouch: Synchronize MT frame on reset_resume
  HID: wacom: fix Bamboo ONE oops
  HID: lenovo: Don't use stack variables for DMA buffers
  HID: usbhid: fix inconsistent reset/resume/reset-resume behavior
  HID: wiimote: Fix wiimote mp scale linearization

Pull m68k update from Geert Uytterhoeven.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k/defconfig: Update defconfigs for v4.6-rc2
  m68k: Wire up preadv2 and pwritev2

Pull ARC fixes from Vineet Gupta:
 - fix Kconfig splat due to pcie rework
 - make ethernet work again on axs103
 - provide fb_pgprotect() for future video driver integration

* tag 'arc-4.6-rc4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: [plat-axs103] Enable loop block devices
  Revert "ARC: [plat-axs10x] add Ethernet PHY description in .dts"
  arc: Add our own implementation of fb_pgprotect()
  ARC: Don't source drivers/pci/pcie/Kconfig ourselves

The Lenovo Thinkpad T460s requires the alc_fixup_tpt440_dock as well in
order to get working sound output on the docking stations headphone jack.

Patch tested on a Thinkpad T460s (20F9CT01WW) using a ThinkPad Ultradock
on kernel 4.4.6.
Signed-off-by: NSven Eckelmann <sven@narfation.org>
Tested-by: NSimon Wunderlich <sw@simonwunderlich.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The 'size' member of a struct firmware is passed to snd_printk with a
respective format string using the %d identifier. The 'size' member is
of type size_t, but format identifier %d indicates a signed int data
type. This patch replaces the %d format identifier with the correct %zu
format identifier for size_t data types.
Signed-off-by: NWilliam Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

The ColdFire architecture specific gpio support code registers a sysfs
bus device named "gpio". This clashes with the new generic API device
added in commit 3c702e99 ("gpio: add a userspace chardev ABI for GPIOs").

The old ColdFire sysfs gpio device was never used for anything specific,
and no links or other nodes were created under it. The new API sysfs gpio
device has all the same default sysfs links (device, drivers, etc) and
they are properly populated.

Remove the old ColdFire sysfs gpio registration.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>

Pull ARM fixes from Russell King:
 "A couple of small fixes, and wiring up the new syscalls which appeared
  during the merge window"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8550/1: protect idiv patching against undefined gcc behavior
  ARM: wire up preadv2 and pwritev2 syscalls
  ARM: SMP enable of cache maintanence broadcast