Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

here's a batch of i915 fixes for 4.7.

* tag 'drm-intel-fixes-2016-06-30' of git://anongit.freedesktop.org/drm-intel:
  drm/i915: Fix missing unlock on error in i915_ppgtt_info()
  drm/i915: Removing PCI IDs that are no longer listed as Kabylake.
  drm/i915: Add more Kabylake PCI IDs.
  drm/i915: Avoid early timeout during AUX transfers
  drm/i915/hsw: Avoid early timeout during LCPLL disable/restore
  drm/i915/lpt: Avoid early timeout during FDI PHY reset
  drm/i915/bxt: Avoid early timeout during PLL enable
  drm/i915: Refresh cached DP port register value on resume

Just a few more late fixes for Polaris cards.

* 'drm-fixes-4.7' of git://people.freedesktop.org/~agd5f/linux:
  drm/amd/powerplay: workaround for UVD clock issue
  drm/amdgpu: add ACLK_CNTL setting for polaris10
  drm/amd/powerplay: fix issue uvd dpm can't enabled on Polaris11.
  drm/amd/powerplay: Workaround for Memory EDC Error on Polaris10.
  drm/amd/powerplay: Update CKS on/ CKS off voltage offset calculation
  drm/amd/powerplay: disable FFC.
  drm/amd/powerplay: add some definition for FFC feature on polaris.

Pull ACPI fix from Rafael Wysocki:
 "Fix an expression in the ACPI PCI IRQ management code added by a
  recent commit that overlooked missing parens in it, so the result of
  the computation is incorrect in some cases (Sinan Kaya)"

* tag 'acpi-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI,PCI,IRQ: correct operator precedence

Pull power management fixes from Rafael Wysocki:
 "Three cpufreq fixes, one in the core (stable-candidate) and two in
  drivers (intel_pstate and cpufreq-dt).

  Specifics:

   - Fix a recent intel_pstate regression that caused the number of
     wakeups to increase significantly on an idle system in some cases
     due to excessive synchronize_sched() invocations (Rafael Wysocki).

   - Fix unnecessary invocations of WARN_ON() in the cpufreq core after
     cpufreq has been suspended introduced during the 4.6 cycla (Rafael
     Wysocki).

   - Fix an error code path in the cpufreq-dt-platdev driver that
     forgets to drop a reference to a DT node (Masahiro Yamada)"

* tag 'pm-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: Avoid false-positive WARN_ON()s in cpufreq_update_policy()
  cpufreq: dt: call of_node_put() before error out
  intel_pstate: Do not clear utilization update hooks on policy changes

Pull vfs fixes from Al Viro:
 "Tmpfs readdir throughput regression fix (this cycle) + some -stable
  fodder all over the place.

  One missing bit is Miklos' tonight locks.c fix - NFS folks had already
  grabbed that one by the time I woke up ;-)"

[ The locks.c fix came through the nfsd tree just moments ago ]

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  namespace: update event counter when umounting a deleted dentry
  9p: use file_dentry()
  ceph: fix d_obtain_alias() misuses
  lockless next_positive()
  libfs.c: new helper - next_positive()
  dcache_{readdir,dir_lseek}(): don't bother with nested ->d_lock

Pull lockd/locks fixes from Bruce Fields:
 "One fix for lockd soft lookups in an error path, and one fix for file
  leases on overlayfs"

* tag 'nfsd-4.7-3' of git://linux-nfs.org/~bfields/linux:
  locks: use file_inode()
  lockd: unregister notifier blocks if the service fails to come up completely

Pull more MFD fixes from Lee Jones:
 "Apologies for missing these from the first pull request.

  Final patches fixing Reset API change"

* tag 'mfd-fixes-4.7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  usb: dwc3: st: Use explicit reset_control_get_exclusive() API
  phy: phy-stih407-usb: Use explicit reset_control_get_exclusive() API
  phy: miphy28lp: Inform the reset framework that our reset line may be shared

Pull libnvdimm fixes from Dan Williams:
 "1/ Two regression fixes since v4.6: one for the byte order of a sysfs
     attribute (bz121161) and another for QEMU 2.6's NVDIMM _DSM (ACPI
     Device Specific Method) implementation that gets tripped up by new
     auto-probing behavior in the NFIT driver.

  2/ A fix tagged for -stable that stops the kernel from
     clobbering/ignoring changes to the configuration of a 'pfn'
     instance ("struct page" driver).  For example changing the
     alignment from 2M to 1G may silently revert to 2M if that value is
     currently stored on media.

  3/ A fix from Eric for an xfstests failure in dax.  It is not
     currently tagged for -stable since it requires an 8-exabyte file
     system to trigger, and there appear to be no user visible side
     effects"

* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  nfit: fix format interface code byte order
  dax: fix offset overflow in dax_io
  acpi, nfit: fix acpi_check_dsm() vs zero functions implemented
  libnvdimm, pfn, dax: fix initialization vs autodetect for mode + alignment

Pull staging and IIO fixes from Greg KH:
 "Here are a few small staging and iio driver fixes for 4.7-rc6.

  Nothing major here, just a number of small fixes, all have been in
  linux-next for a while, and the full details are in the shortlog"

* tag 'staging-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  iio:ad7266: Fix probe deferral for vref
  iio:ad7266: Fix support for optional regulators
  iio:ad7266: Fix broken regulator error handling
  iio: accel: kxsd9: fix the usage of spi_w8r8()
  staging: iio: accel: fix error check
  staging: iio: ad5933: fix order of cycle conditions
  staging: iio: fix ad7606_spi regression
  iio: inv_mpu6050: Fix use-after-free in ACPI code

Pull tty fixes from Greg KH:
 "Here are two tty fixes for some reported issues.  One resolves a crash
  in devpts, and the other resolves a problem with the fbcon cursor
  blink causing lockups.

  Both have been in linux-next with no reported problems"

* tag 'tty-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  devpts: fix null pointer dereference on failed memory allocation
  tty: vt: Fix soft lockup in fbcon cursor blink timer.

Pull USB and PHY fixes from Greg KH:
 "Here are a number of small USB and PHY driver fixes for 4.7-rc6.

  Nothing major here, all are described in the shortlog below.  All have
  been in linux-next with no reported issues"

* tag 'usb-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  USB: don't free bandwidth_mutex too early
  USB: EHCI: declare hostpc register as zero-length array
  phy-sun4i-usb: Fix irq free conditions to match request conditions
  phy: bcm-ns-usb2: checking the wrong variable
  phy-sun4i-usb: fix missing __iomem *
  phy: phy-sun4i-usb: Fix optional gpios failing probe
  phy: rockchip-dp: fix return value check in rockchip_dp_phy_probe()
  phy: rcar-gen3-usb2: fix unexpected repeat interrupts of VBUS change
  usb: common: otg-fsm: add license to usb-otg-fsm

Pull IOMMU fixes from Joerg Roedel:
 "Three fixes:

   - Fix use of smp_processor_id() in preemptible code in the IOVA
     allocation code.  This got introduced with the scalability
     improvements in this release cycle.

   - A VT-d fix for out-of-bounds access of the iommu->domains array.
     The bug showed during suspend/resume.

   - AMD IOMMU fix to print the correct device id in the ACPI parsing
     code"

* tag 'iommu-fixes-v4.7-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Initialize devid variable before using it
  iommu/vt-d: Fix overflow of iommu->domains array
  iommu/iova: Disable preemption around use of this_cpu_ptr()

(Another one for the f_path debacle.)

ltp fcntl33 testcase caused an Oops in selinux_file_send_sigiotask.

The reason is that generic_add_lease() used filp->f_path.dentry->inode
while all the others use file_inode().  This makes a difference for files
opened on overlayfs since the former will point to the overlay inode the
latter to the underlying inode.

So generic_add_lease() added the lease to the overlay inode and
generic_delete_lease() removed it from the underlying inode.  When the file
was released the lease remained on the overlay inode's lock list, resulting
in use after free.
Reported-by: Eryu Guan <eguan@redhat.com>
Fixes: 4bacc9c9 ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay")
Cc: <stable@vger.kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

We're making all reset line users specify whether their lines are
shared with other IP or they operate them exclusively.  In this case
the line is exclusively used only by this IP, so use the *_exclusive()
API accordingly.
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

We're making all reset line users specify whether their lines are
shared with other IP or they operate them exclusively.  In this case
the line is exclusively used only by this IP, so use the *_exclusive()
API accordingly.
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

On the STiH410 B2120 development board the MiPHY28lp shares its reset
line with the Synopsys DWC3 SuperSpeed (SS) USB 3.0 Dual-Role-Device
(DRD).  New functionality in the reset subsystems forces consumers to
be explicit when requesting shared/exclusive reset lines.
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

- m_start() in fs/namespace.c expects that ns->event is incremented each
  time a mount added or removed from ns->list.
- umount_tree() removes items from the list but does not increment event
  counter, expecting that it's done before the function is called.
- There are some codepaths that call umount_tree() without updating
  "event" counter. e.g. from __detach_mounts().
- When this happens m_start may reuse a cached mount structure that no
  longer belongs to ns->list (i.e. use after free which usually leads
  to infinite loop).

This change fixes the above problem by incrementing global event counter
before invoking umount_tree().

Change-Id: I622c8e84dcb9fb63542372c5dbf0178ee86bb589
Cc: stable@vger.kernel.org
Signed-off-by: Andrey Ulanov <andreyu@google.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

v9fs may be used as lower layer of overlayfs and accessing f_path.dentry
can lead to a crash.  In this case it's a NULL pointer dereference in
p9_fid_create().

Fix by replacing direct access of file->f_path.dentry with the
file_dentry() accessor, which will always return a native object.
Reported-by: Alessio Igor Bogani <alessioigorbogani@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Tested-by: Alessio Igor Bogani <alessioigorbogani@gmail.com>
Fixes: 4bacc9c9 ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay")
Cc: <stable@vger.kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

If the lockd service fails to start up then we need to be sure that the
notifier blocks are not registered, otherwise a subsequent start of the
service could cause the same notifier to be registered twice, leading to
soft lockups.
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Cc: stable@vger.kernel.org
Fixes: 0751ddf7 "lockd: Register callbacks on the inetaddr_chain..."
Signed-off-by: J. Bruce Fields <bfields@redhat.com>

Pull KVM fixes from Paolo Bonzini:
 "ARM and x86 fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: nVMX: VMX instructions: fix segment checks when L1 is in long mode.
  KVM: LAPIC: cap __delay at lapic_timer_advance_ns
  KVM: x86: move nsec_to_cycles from x86.c to x86.h
  pvclock: Get rid of __pvclock_read_cycles in function pvclock_read_flags
  pvclock: Cleanup to remove function pvclock_get_nsec_offset
  pvclock: Add CPU barriers to get correct version value
  KVM: arm/arm64: Stop leaking vcpu pid references
  arm64: KVM: fix build with CONFIG_ARM_PMU disabled

Pull ARC fix from Vineet Gupta:
 "Reinstate dwarf unwinder/loadable-modules with new gnu tools"

* tag 'arc-4.7-rc6-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  arc: unwind: warn only once if DW2_UNWIND is disabled
  ARC: unwind: ensure that .debug_frame is generated (vs. .eh_frame)

Merge tag 'pwm/for-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

Pull pwm fixes from Thierry Reding:
 "One more fix for some fallout observed after the introduction of the
  atomic API"

* tag 'pwm/for-4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
  pwm: Fix pwm_apply_args()

Pull MFD fixes from Lee Jones:
 "Contained are some standard fixes and unusually an extension to the
  Reset API.  Some of those changes are required to fix a bug introduced
  in -rc1, which introduces extra 'reset line checks' i.e. whether the
  line is shared or not.  If a line is shared and the new *_shared() API
  is not used, the request fails with an error.  This breaks USB in v4.7
  for ST's platforms.

  Admittedly, there are some patches contained in our (MFD/Reset)
  immutable branch which are not true -fixes, but there isn't anything I
  can do about that.  Rest assured though, there aren't any API
  'changes'.  Everything is the same from the consumer's perspective.

   - Use new reset_*_get_shared() variant to prevent reset line
     obtainment failure (Fixes commit 0b52297f: "reset: Add support
     for shared reset controls")

   - Fix unintentional switch() fall-through into error path

   - Fix uninitialised variable compiler warning"

* tag 'mfd-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd:
  mfd: da9053: Fix compiler warning message for uninitialised variable
  mfd: max77620: Fix FPS switch statements
  phy: phy-stih407-usb: Inform the reset framework that our reset line may be shared
  usb: dwc3: st: Inform the reset framework that our reset line may be shared
  usb: host: ehci-st: Inform the reset framework that our reset line may be shared
  usb: host: ohci-st: Inform the reset framework that our reset line may be shared
  reset: TRIVIAL: Add line break at same place for similar APIs
  reset: Supply *_shared variant calls when using *_optional APIs
  reset: Supply *_shared variant calls when using of_* API
  reset: Ensure drivers are explicit when requesting reset lines
  reset: Reorder inline reset_control_get*() wrappers

Merge tag 'kvm-arm-for-v4.7-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm-master

KVM/ARM Fixes for v4.7-rc6:

Fixes a build issue without CONFIG_ARM_PMU and plugs pid leak on arm/arm64.

The omitted parenthesis prevents the addition operation when
acpi_penalize_isa_irq function is called.

Fixes: 103544d8 (ACPI,PCI,IRQ: reduce resource requirements)
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Add the missing unlock before return from function i915_ppgtt_info()
in the error handling case.

Fixes: 1d2ac403(drm: Protect dev->filelist with its own mutex)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465861320-26221-1-git-send-email-weiyj_lk@163.com
(cherry picked from commit b0212486)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Fix compiler warning caused by an uninitialised variable inside
da9052_group_write() function. Defaulting the value to zero covers
the trivial case.
Signed-off-by: Steve Twiss <stwiss.opensource@diasemi.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

When configuring FPS during probe, assuming a DT node is present for
FPS, the code can run into a problem with the switch statements in
max77620_config_fps() and max77620_get_fps_period_reg_value(). Namely,
in the case of chip->chip_id == MAX77620, it will set
fps_[mix|max]_period but then fall through to the default switch case
and return -EINVAL. Returning this from max77620_config_fps() will
cause probe to fail.
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

On the STiH410 B2120 development board the ports on the Generic PHY
share their reset lines with each other.  New functionality in the
reset subsystems forces consumers to be explicit when requesting
shared/exclusive reset lines.
Signed-off-by: Lee Jones <lee.jones@linaro.org>

On the STiH410 B2120 development board the MiPHY28lp shares its reset
line with the Synopsys DWC3 SuperSpeed (SS) USB 3.0 Dual-Role-Device
(DRD).  New functionality in the reset subsystems forces consumers to
be explicit when requesting shared/exclusive reset lines.
Acked-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

On the STiH410 B2120 development board the ST EHCI IP shares its reset
line with the OHCI IP.  New functionality in the reset subsystems forces
consumers to be explicit when requesting shared/exclusive reset lines.
Acked-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

On the STiH410 B2120 development board the ST EHCI IP shares its reset
line with the OHCI IP.  New functionality in the reset subsystems forces
consumers to be explicit when requesting shared/exclusive reset lines.
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

Pull NFS client bugfixes from Anna Schumaker:
 "Stable bugfixes:
   - Fix _cancel_empty_pagelist
   - Fix a double page unlock
   - Make nfs_atomic_open() call d_drop() on all ->open_context() errors.
   - Fix another OPEN_DOWNGRADE bug

  Other bugfixes:
   - Ensure we handle delegation errors in nfs4_proc_layoutget()
   - Layout stateids start out as being invalid
   - Add sparse lock annotations for pnfs_find_alloc_layout
   - Handle bad delegation stateids in nfs4_layoutget_handle_exception
   - Fix up O_DIRECT results
   - Fix potential use after free of state in nfs4_do_reclaim.
   - Mark the layout stateid invalid when all segments are removed
   - Don't let readdirplus revalidate an inode that was marked as stale
   - Fix potential race in nfs_fhget()
   - Fix an unused variable warning"

* tag 'nfs-for-4.7-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS: Fix another OPEN_DOWNGRADE bug
  make nfs_atomic_open() call d_drop() on all ->open_context() errors.
  NFS: Fix an unused variable warning
  NFS: Fix potential race in nfs_fhget()
  NFS: Don't let readdirplus revalidate an inode that was marked as stale
  NFSv4.1/pnfs: Mark the layout stateid invalid when all segments are removed
  NFS: Fix a double page unlock
  pnfs_nfs: fix _cancel_empty_pagelist
  nfs4: Fix potential use after free of state in nfs4_do_reclaim.
  NFS: Fix up O_DIRECT results
  NFS/pnfs: handle bad delegation stateids in nfs4_layoutget_handle_exception
  NFSv4.1/pnfs: Add sparse lock annotations for pnfs_find_alloc_layout
  NFSv4.1/pnfs: Layout stateids start out as being invalid
  NFSv4.1/pnfs: Ensure we handle delegation errors in nfs4_proc_layoutget()

Pull audit fixes from Paul Moore:
 "Two small patches to fix audit problems in 4.7-rcX: the first fixes a
  potential kref leak, the second removes some header file noise.

  The first is an important bug fix that really should go in before 4.7
  is released, the second is not critical, but falls into the very-nice-
  to-have category so I'm including in the pull request.

  Both patches are straightforward, self-contained, and pass our
  testsuite without problem"

* 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit:
  audit: move audit_get_tty to reduce scope and kabi changes
  audit: move calcs after alloc and check when logging set loginuid

Merge tag 'iio-fixes-for-4.7c' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

Jonathan writes:

Third set of fixes for IIO in the 4.7 cycle.

A couple of really old bugs and the results of Mark taking a close look at
some nasty regulator handling.

* ad7266
  - Fix broken regulator handling that won't play well with dummy regulators.
  - Correctly handle and optional regulator.
  - Fix probe deferral for the vref regulator.
* kxsd9
  - Fix a wrong error check that leads to an inability to write or read
  the scale.
* sca3000
  - Fix a wrong error check that leads to an inability to read back the
  sampling frequency.

Standardise the way inline functions:

  devm_reset_control_get_shared_by_index
  devm_reset_control_get_exclusive_by_index

... are formatted.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Consumers need to be able to specify whether they are requesting an
'exclusive' or 'shared' reset line no matter which API (of_*, devm_*,
etc) they are using.  This change allows users of the optional_* API
in particular to specify that their request is for a 'shared' line.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Consumers need to be able to specify whether they are requesting an
'exclusive' or 'shared' reset line no matter which API (of_*, devm_*,
etc) they are using.  This change allows users of the of_* API in
particular to specify that their request is for a 'shared' line.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>