sfrench/cifs-2.6.git
8 months agoMerge tag 'devicetree-fixes-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 4 Oct 2019 19:57:45 +0000 (12:57 -0700)]
Merge tag 'devicetree-fixes-for-5.4' of git://git./linux/kernel/git/robh/linux

Pull DeviceTree fixes from Rob Herring:
 "Fix several 'dt_binding_check' build failures"

* tag 'devicetree-fixes-for-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: phy: lantiq: Fix Property Name
  dt-bindings: iio: ad7192: Fix DTC warning in the example
  dt-bindings: iio: ad7192: Fix Regulator Properties
  dt-bindings: media: rc: Fix redundant string
  dt-bindings: dsp: Fix fsl,dsp example

8 months agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Fri, 4 Oct 2019 18:17:51 +0000 (11:17 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "ARM and x86 bugfixes of all kinds.

  The most visible one is that migrating a nested hypervisor has always
  been busted on Broadwell and newer processors, and that has finally
  been fixed"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (22 commits)
  KVM: x86: omit "impossible" pmu MSRs from MSR list
  KVM: nVMX: Fix consistency check on injected exception error code
  KVM: x86: omit absent pmu MSRs from MSR list
  selftests: kvm: Fix libkvm build error
  kvm: vmx: Limit guest PMCs to those supported on the host
  kvm: x86, powerpc: do not allow clearing largepages debugfs entry
  KVM: selftests: x86: clarify what is reported on KVM_GET_MSRS failure
  KVM: VMX: Set VMENTER_L1D_FLUSH_NOT_REQUIRED if !X86_BUG_L1TF
  selftests: kvm: add test for dirty logging inside nested guests
  KVM: x86: fix nested guest live migration with PML
  KVM: x86: assign two bits to track SPTE kinds
  KVM: x86: Expose XSAVEERPTR to the guest
  kvm: x86: Enumerate support for CLZERO instruction
  kvm: x86: Use AMD CPUID semantics for AMD vCPUs
  kvm: x86: Improve emulation of CPUID leaves 0BH and 1FH
  KVM: X86: Fix userspace set invalid CR4
  kvm: x86: Fix a spurious -E2BIG in __do_cpuid_func
  KVM: LAPIC: Loosen filter for adaptive tuning of lapic_timer_advance_ns
  KVM: arm/arm64: vgic: Use the appropriate TRACE_INCLUDE_PATH
  arm64: KVM: Kill hyp_alternate_select()
  ...

8 months agoMerge tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 4 Oct 2019 18:13:09 +0000 (11:13 -0700)]
Merge tag 'for-linus-5.4-rc2-tag' of git://git./linux/kernel/git/xen/tip

Pull xen fixes and cleanups from Juergen Gross:

 - a fix in the Xen balloon driver avoiding hitting a BUG_ON() in some
   cases, plus a follow-on cleanup series for that driver

 - a patch for introducing non-blocking EFI callbacks in Xen's EFI
   driver, plu a cleanup patch for Xen EFI handling merging the x86 and
   ARM arch specific initialization into the Xen EFI driver

 - a fix of the Xen xenbus driver avoiding a self-deadlock when cleaning
   up after a user process has died

 - a fix for Xen on ARM after removal of ZONE_DMA

 - a cleanup patch for avoiding build warnings for Xen on ARM

* tag 'for-linus-5.4-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/xenbus: fix self-deadlock after killing user process
  xen/efi: have a common runtime setup function
  arm: xen: mm: use __GPF_DMA32 for arm64
  xen/balloon: Clear PG_offline in balloon_retrieve()
  xen/balloon: Mark pages PG_offline in balloon_append()
  xen/balloon: Drop __balloon_append()
  xen/balloon: Set pages PageOffline() in balloon_add_region()
  ARM: xen: unexport HYPERVISOR_platform_op function
  xen/efi: Set nonblocking callbacks

8 months agoMerge tag 'copy-struct-from-user-v5.4-rc2' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Fri, 4 Oct 2019 17:36:31 +0000 (10:36 -0700)]
Merge tag 'copy-struct-from-user-v5.4-rc2' of git://git./linux/kernel/git/brauner/linux

Pull copy_struct_from_user() helper from Christian Brauner:
 "This contains the copy_struct_from_user() helper which got split out
  from the openat2() patchset. It is a generic interface designed to
  copy a struct from userspace.

  The helper will be especially useful for structs versioned by size of
  which we have quite a few. This allows for backwards compatibility,
  i.e. an extended struct can be passed to an older kernel, or a legacy
  struct can be passed to a newer kernel. For the first case (extended
  struct, older kernel) the new fields in an extended struct can be set
  to zero and the struct safely passed to an older kernel.

  The most obvious benefit is that this helper lets us get rid of
  duplicate code present in at least sched_setattr(), perf_event_open(),
  and clone3(). More importantly it will also help to ensure that users
  implementing versioning-by-size end up with the same core semantics.

  This point is especially crucial since we have at least one case where
  versioning-by-size is used but with slighly different semantics:
  sched_setattr(), perf_event_open(), and clone3() all do do similar
  checks to copy_struct_from_user() while rt_sigprocmask(2) always
  rejects differently-sized struct arguments.

  With this pull request we also switch over sched_setattr(),
  perf_event_open(), and clone3() to use the new helper"

* tag 'copy-struct-from-user-v5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  usercopy: Add parentheses around assignment in test_copy_struct_from_user
  perf_event_open: switch to copy_struct_from_user()
  sched_setattr: switch to copy_struct_from_user()
  clone3: switch to copy_struct_from_user()
  lib: introduce copy_struct_from_user() helper

8 months agoMerge tag 'for-linus-20191003' of git://git.kernel.org/pub/scm/linux/kernel/git/braun...
Linus Torvalds [Fri, 4 Oct 2019 17:18:56 +0000 (10:18 -0700)]
Merge tag 'for-linus-20191003' of git://git./linux/kernel/git/brauner/linux

Pull clone3/pidfd fixes from Christian Brauner:
 "This contains a couple of fixes:

   - Fix pidfd selftest compilation (Shuah Kahn)

     Due to a false linking instruction in the Makefile compilation for
     the pidfd selftests would fail on some systems.

   - Fix compilation for glibc on RISC-V systems (Seth Forshee)

     In some scenarios linux/uapi/linux/sched.h is included where
     __ASSEMBLY__ is defined causing a build failure because struct
     clone_args was not guarded by an #ifndef __ASSEMBLY__.

   - Add missing clone3() and struct clone_args kernel-doc (Christian Brauner)

     clone3() and struct clone_args were missing kernel-docs. (The goal
     is to use kernel-doc for any function or type where it's worth it.)
     For struct clone_args this also contains a comment about the fact
     that it's versioned by size"

* tag 'for-linus-20191003' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
  sched: add kernel-doc for struct clone_args
  fork: add kernel-doc for clone3
  selftests: pidfd: Fix undefined reference to pthread_create()
  sched: Add __ASSEMBLY__ guards around struct clone_args

8 months agoMerge tag 'drm-fixes-2019-10-04' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 4 Oct 2019 17:12:37 +0000 (10:12 -0700)]
Merge tag 'drm-fixes-2019-10-04' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Been offline for 3 days, got back and had some fixes queued up.

  Nothing too major, the i915 dp-mst fix is important, and amdgpu has a
  bulk move speedup fix and some regressions, but nothing too insane for
  an rc2 pull. The intel fixes are also 2 weeks worth, they missed the
  boat last week.

  core:
   - writeback fixes

  i915:
   - Fix DP-MST crtc_mask
   - Fix dsc dpp calculations
   - Fix g4x sprite scaling stride check with GTT remapping
   - Fix concurrence on cases where requests where getting retired at
     same time as resubmitted to HW
   - Fix gen9 display resolutions by setting the right max plane width
   - Fix GPU hang on preemption
   - Mark contents as dirty on a write fault. This was breaking cursor
     sprite with dumb buffers.

  komeda:
   - memory leak fix

  tilcdc:
   - include fix

  amdgpu:
   - Enable bulk moves
   - Power metrics fixes for Navi
   - Fix S4 regression
   - Add query for tcc disabled mask
   - Fix several leaks in error paths
   - randconfig fixes
   - clang fixes"

* tag 'drm-fixes-2019-10-04' of git://anongit.freedesktop.org/drm/drm: (21 commits)
  Revert "drm/i915: Fix DP-MST crtc_mask"
  drm/omap: fix max fclk divider for omap36xx
  drm/i915: Fix g4x sprite scaling stride check with GTT remapping
  drm/i915/dp: Fix dsc bpp calculations, v5.
  drm/amd/display: fix dcn21 Makefile for clang
  drm/amd/display: hide an unused variable
  drm/amdgpu: display_mode_vba_21: remove uint typedef
  drm/amdgpu: hide another #warning
  drm/amdgpu: make pmu support optional, again
  drm/amd/display: memory leak
  drm/amdgpu: fix multiple memory leaks in acp_hw_init
  drm/amdgpu: return tcc_disabled_mask to userspace
  drm/amdgpu: don't increment vram lost if we are in hibernation
  Revert "drm/amdgpu: disable stutter mode for renoir"
  drm/amd/powerplay: add sensor lock support for smu
  drm/amd/powerplay: change metrics update period from 1ms to 100ms
  drm/amdgpu: revert "disable bulk moves for now"
  drm/tilcdc: include linux/pinctrl/consumer.h again
  drm/komeda: prevent memory leak in komeda_wb_connector_add
  drm: Clear the fence pointer when writeback job signaled
  ...

8 months agoMerge tag 'for-linus-2019-10-03' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 4 Oct 2019 16:56:51 +0000 (09:56 -0700)]
Merge tag 'for-linus-2019-10-03' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - Mandate timespec64 for the io_uring timeout ABI (Arnd)

 - Set of NVMe changes via Sagi:
     - controller removal race fix from Balbir
     - quirk additions from Gabriel and Jian-Hong
     - nvme-pci power state save fix from Mario
     - Add 64bit user commands (for 64bit registers) from Marta
     - nvme-rdma/nvme-tcp fixes from Max, Mark and Me
     - Minor cleanups and nits from James, Dan and John

 - Two s390 dasd fixes (Jan, Stefan)

 - Have loop change block size in DIO mode (Martijn)

 - paride pg header ifdef guard (Masahiro)

 - Two blk-mq queue scheduler tweaks, fixing an ordering issue on zoned
   devices and suboptimal performance on others (Ming)

* tag 'for-linus-2019-10-03' of git://git.kernel.dk/linux-block: (22 commits)
  block: sed-opal: fix sparse warning: convert __be64 data
  block: sed-opal: fix sparse warning: obsolete array init.
  block: pg: add header include guard
  Revert "s390/dasd: Add discard support for ESE volumes"
  s390/dasd: Fix error handling during online processing
  io_uring: use __kernel_timespec in timeout ABI
  loop: change queue block size to match when using DIO
  blk-mq: apply normal plugging for HDD
  blk-mq: honor IO scheduler for multiqueue devices
  nvme-rdma: fix possible use-after-free in connect timeout
  nvme: Move ctrl sqsize to generic space
  nvme: Add ctrl attributes for queue_count and sqsize
  nvme: allow 64-bit results in passthru commands
  nvme: Add quirk for Kingston NVME SSD running FW E8FK11.T
  nvmet-tcp: remove superflous check on request sgl
  Added QUIRKs for ADATA XPG SX8200 Pro 512GB
  nvme-rdma: Fix max_hw_sectors calculation
  nvme: fix an error code in nvme_init_subsystem()
  nvme-pci: Save PCI state before putting drive into deepest state
  nvme-tcp: fix wrong stop condition in io_work
  ...

8 months agoKVM: x86: omit "impossible" pmu MSRs from MSR list
Paolo Bonzini [Tue, 1 Oct 2019 13:33:07 +0000 (15:33 +0200)]
KVM: x86: omit "impossible" pmu MSRs from MSR list

INTEL_PMC_MAX_GENERIC is currently 32, which exceeds the 18
contiguous MSR indices reserved by Intel for event selectors.
Since some machines actually have MSRs past the reserved range,
filtering them against x86_pmu.num_counters_gp may have false
positives.  Cut the list to 18 entries to avoid this.

Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Jim Mattson <jamttson@google.com>
Fixes: e2ada66ec418 ("kvm: x86: Add Intel PMU MSRs to msrs_to_save[]", 2019-08-21)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 months agoMerge tag 'drm-intel-fixes-2019-10-03-1' of git://anongit.freedesktop.org/drm/drm...
Dave Airlie [Fri, 4 Oct 2019 06:31:03 +0000 (16:31 +1000)]
Merge tag 'drm-intel-fixes-2019-10-03-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix DP-MST crtc_mask
- Fix dsc dpp calculations
- Fix g4x sprite scaling stride check with GTT remapping

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003193051.GA26421@intel.com
9 months agoMerge tag 'drm-misc-fixes-2019-10-03' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 4 Oct 2019 06:30:35 +0000 (16:30 +1000)]
Merge tag 'drm-misc-fixes-2019-10-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

 - One include fix for tilcdc
 - A clock fix for OMAP
 - A memory leak fix for Komeda
 - Some fixes for resources cleanups with writeback

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191003081031.oykms5fg4tijvdri@gilmour
9 months agoMerge tag 'drm-fixes-5.4-2019-10-02' of git://people.freedesktop.org/~agd5f/linux...
Dave Airlie [Fri, 4 Oct 2019 06:27:51 +0000 (16:27 +1000)]
Merge tag 'drm-fixes-5.4-2019-10-02' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

drm-fixes-5.4-2019-10-02:

amdgpu:
- Enable bulk moves
- Power metrics fixes for Navi
- Fix S4 regression
- Add query for tcc disabled mask
- Fix several leaks in error paths
- randconfig fixes
- clang fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191002204909.3519-1-alexander.deucher@amd.com
9 months agovfs: Fix EOVERFLOW testing in put_compat_statfs64
Eric Sandeen [Wed, 2 Oct 2019 21:17:54 +0000 (16:17 -0500)]
vfs: Fix EOVERFLOW testing in put_compat_statfs64

Today, put_compat_statfs64() disallows nearly any field value over
2^32 if f_bsize is only 32 bits, but that makes no sense.
compat_statfs64 is there for the explicit purpose of providing 64-bit
fields for f_files, f_ffree, etc.  And f_bsize is always only 32 bits.

As a result, 32-bit userspace gets -EOVERFLOW for i.e.  large file
counts even with -D_FILE_OFFSET_BITS=64 set.

In reality, only f_bsize and f_frsize can legitimately overflow
(fields like f_type and f_namelen should never be large), so test
only those fields.

This bug was discussed at length some time ago, and this is the proposal
Al suggested at https://lkml.org/lkml/2018/8/6/640.  It seemed to get
dropped amid the discussion of other related changes, but this
part seems obviously correct on its own, so I've picked it up and
sent it, for expediency.

Fixes: 64d2ab32efe3 ("vfs: fix put_compat_statfs64() does not handle errors")
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 months agoblock: sed-opal: fix sparse warning: convert __be64 data
Randy Dunlap [Thu, 3 Oct 2019 02:23:15 +0000 (19:23 -0700)]
block: sed-opal: fix sparse warning: convert __be64 data

sparse warns about incorrect type when using __be64 data.
It is not being converted to CPU-endian but it should be.

Fixes these sparse warnings:

../block/sed-opal.c:375:20: warning: incorrect type in assignment (different base types)
../block/sed-opal.c:375:20:    expected unsigned long long [usertype] align
../block/sed-opal.c:375:20:    got restricted __be64 const [usertype] alignment_granularity
../block/sed-opal.c:376:25: warning: incorrect type in assignment (different base types)
../block/sed-opal.c:376:25:    expected unsigned long long [usertype] lowest_lba
../block/sed-opal.c:376:25:    got restricted __be64 const [usertype] lowest_aligned_lba

Fixes: 455a7b238cd6 ("block: Add Sed-opal library")
Cc: Scott Bauer <scott.bauer@intel.com>
Cc: Rafael Antognolli <rafael.antognolli@intel.com>
Cc: linux-block@vger.kernel.org
Reviewed-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
9 months agoblock: sed-opal: fix sparse warning: obsolete array init.
Randy Dunlap [Thu, 3 Oct 2019 02:23:05 +0000 (19:23 -0700)]
block: sed-opal: fix sparse warning: obsolete array init.

Fix sparse warning: (missing '=')
../block/sed-opal.c:133:17: warning: obsolete array initializer, use C99 syntax

Fixes: ff91064ea37c ("block: sed-opal: check size of shadow mbr")
Cc: linux-block@vger.kernel.org
Cc: Jonas Rabenstein <jonas.rabenstein@studium.uni-erlangen.de>
Cc: David Kozub <zub@linux.fjfi.cvut.cz>
Reviewed-by: Scott Bauer <sbauer@plzdonthack.me>
Reviewed-by: Revanth Rajashekar <revanth.rajashekar@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
9 months agoRevert "drm/i915: Fix DP-MST crtc_mask"
Ville Syrjälä [Tue, 3 Sep 2019 15:40:18 +0000 (18:40 +0300)]
Revert "drm/i915: Fix DP-MST crtc_mask"

This reverts commit 4eaceea3a00f8e936a7f48dcd0c975a57f88930f.

Several userspace clients (modesetting ddx and mutter+wayland at least)
handle encoder.possible_crtcs incorrectly. What they essentially do is
the following:

possible_crtcs = ~0;
for_each_possible_encoder(connector)
possible_crtcs &= encoder->possible_crtcs;

Ie. they calculate the intersection of the possible_crtcs
for the connector when they really should be calculating the
union instead.

In our case each MST encoder now has just one unique bit set,
and so the intersection is always zero. The end result is that
MST connectors can't be lit up because no crtc can be found to
drive them.

I've submitted a fix for the modesetting ddx [1], and complained
on #wayland about mutter, so hopefully the situation will improve
in the future. In the meantime we have regression, and so must go
back to the old way of misconfiguring possible_crtcs in the kernel.

[1] https://gitlab.freedesktop.org/xorg/xserver/merge_requests/277

Cc: Jonas Ådahl <jadahl@gmail.com>
Cc: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=111507
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190903154018.26357-1-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
(cherry picked from commit e838bfa8e170415fa3cc8e83ecb171e809c0c422)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
9 months agosched: add kernel-doc for struct clone_args
Christian Brauner [Fri, 27 Sep 2019 15:29:05 +0000 (17:29 +0200)]
sched: add kernel-doc for struct clone_args

Add kernel-doc for struct clone_args for the clone3() syscall.

Link: https://lore.kernel.org/r/20191001114701.24661-3-christian.brauner@ubuntu.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agofork: add kernel-doc for clone3
Christian Brauner [Fri, 27 Sep 2019 15:28:42 +0000 (17:28 +0200)]
fork: add kernel-doc for clone3

Add kernel-doc for the clone3() syscall.

Link: https://lore.kernel.org/r/20191001114701.24661-2-christian.brauner@ubuntu.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agousercopy: Add parentheses around assignment in test_copy_struct_from_user
Nathan Chancellor [Thu, 3 Oct 2019 17:11:21 +0000 (10:11 -0700)]
usercopy: Add parentheses around assignment in test_copy_struct_from_user

Clang warns:

lib/test_user_copy.c:96:10: warning: using the result of an assignment
as a condition without parentheses [-Wparentheses]
        if (ret |= test(umem_src == NULL, "kmalloc failed"))
            ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
lib/test_user_copy.c:96:10: note: place parentheses around the
assignment to silence this warning
        if (ret |= test(umem_src == NULL, "kmalloc failed"))
                ^
            (                                              )
lib/test_user_copy.c:96:10: note: use '!=' to turn this compound
assignment into an inequality comparison
        if (ret |= test(umem_src == NULL, "kmalloc failed"))
                ^~
                !=

Add the parentheses as it suggests because this is intentional.

Fixes: f5a1a536fa14 ("lib: introduce copy_struct_from_user() helper")
Link: https://github.com/ClangBuiltLinux/linux/issues/731
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Acked-by: Aleksa Sarai <cyphar@cyphar.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20191003171121.2723619-1-natechancellor@gmail.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agoMerge tag 'kgdb-5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt...
Linus Torvalds [Thu, 3 Oct 2019 18:17:57 +0000 (11:17 -0700)]
Merge tag 'kgdb-5.4-rc2' of git://git./linux/kernel/git/danielt/linux

Pull kgdb update from Daniel Thompson:
 "This is just a single patch adding a new reviewer for kgdb. New
  reviewers will be a big help so I decided to consider this to be a
  fix!

  I'm looking forward to working more closely with Doug"

* tag 'kgdb-5.4-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
  MAINTAINERS: kgdb: Add myself as a reviewer for kgdb/kdb

9 months agoMAINTAINERS: kgdb: Add myself as a reviewer for kgdb/kdb
Douglas Anderson [Fri, 20 Sep 2019 17:44:47 +0000 (10:44 -0700)]
MAINTAINERS: kgdb: Add myself as a reviewer for kgdb/kdb

I'm interested in kdb / kgdb and have sent various fixes over the
years.  I'd like to get CCed on patches so I can be aware of them and
also help review.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
9 months agoKVM: nVMX: Fix consistency check on injected exception error code
Sean Christopherson [Tue, 1 Oct 2019 16:21:23 +0000 (09:21 -0700)]
KVM: nVMX: Fix consistency check on injected exception error code

Current versions of Intel's SDM incorrectly state that "bits 31:15 of
the VM-Entry exception error-code field" must be zero.  In reality, bits
31:16 must be zero, i.e. error codes are 16-bit values.

The bogus error code check manifests as an unexpected VM-Entry failure
due to an invalid code field (error number 7) in L1, e.g. when injecting
a #GP with error_code=0x9f00.

Nadav previously reported the bug[*], both to KVM and Intel, and fixed
the associated kvm-unit-test.

[*] https://patchwork.kernel.org/patch/11124749/

Reported-by: Nadav Amit <namit@vmware.com>
Cc: stable@vger.kernel.org
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 months agoMerge tag 'kvmarm-fixes-5.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmar...
Paolo Bonzini [Thu, 3 Oct 2019 10:08:50 +0000 (12:08 +0200)]
Merge tag 'kvmarm-fixes-5.4-1' of git://git./linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm fixes for 5.4, take #1

- Remove the now obsolete hyp_alternate_select construct
- Fix the TRACE_INCLUDE_PATH macro in the vgic code

9 months agoKVM: x86: omit absent pmu MSRs from MSR list
Paolo Bonzini [Tue, 1 Oct 2019 13:18:26 +0000 (15:18 +0200)]
KVM: x86: omit absent pmu MSRs from MSR list

INTEL_PMC_MAX_GENERIC is currently 32, which exceeds the 18 contiguous
MSR indices reserved by Intel for event selectors.  Since some machines
actually have MSRs past the reserved range, these may survive the
filtering of msrs_to_save array and would be rejected by KVM_GET/SET_MSR.
To avoid this, cut the list to whatever CPUID reports for the host's
architectural PMU.

Reported-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Suggested-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Jim Mattson <jmattson@google.com>
Fixes: e2ada66ec418 ("kvm: x86: Add Intel PMU MSRs to msrs_to_save[]", 2019-08-21)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 months agoselftests: kvm: Fix libkvm build error
Shuah Khan [Wed, 2 Oct 2019 23:14:30 +0000 (17:14 -0600)]
selftests: kvm: Fix libkvm build error

Fix the following build error from "make TARGETS=kvm kselftest":

libkvm.a(assert.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a PIE object; recompile with -fPIC

This error is seen when build is done from the main Makefile using
kselftest target. In this case KBUILD_CPPFLAGS and CC_OPTION_CFLAGS
are defined.

When build is invoked using:

"make -C tools/testing/selftests/kvm" KBUILD_CPPFLAGS and CC_OPTION_CFLAGS
aren't defined.

There is no need to pass in KBUILD_CPPFLAGS and CC_OPTION_CFLAGS for the
check to determine if --no-pie is necessary, which is the case when these
two aren't defined when "make -C tools/testing/selftests/kvm" runs.

Fix it by simplifying the no-pie-option logic. With this change, both
build variations work.

"make TARGETS=kvm kselftest"
"make -C tools/testing/selftests/kvm"

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 months agoMerge drm-misc-next-fixes-2019-10-02 into drm-misc-fixes
Maxime Ripard [Thu, 3 Oct 2019 08:00:13 +0000 (10:00 +0200)]
Merge drm-misc-next-fixes-2019-10-02 into drm-misc-fixes

One tilcdc fix was left out in drm-misc-next-fixes and didn't make it
during the merge window. Let's bring it into drm-misc-fixes.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
9 months agoMerge drm/drm-fixes into drm-misc-fixes
Maxime Ripard [Thu, 3 Oct 2019 07:59:29 +0000 (09:59 +0200)]
Merge drm/drm-fixes into drm-misc-fixes

We haven't backmerged for a while, let's start the -rc period by pulling
rc1.

Signed-off-by: Maxime Ripard <mripard@kernel.org>
9 months agodrm/omap: fix max fclk divider for omap36xx
Tomi Valkeinen [Wed, 2 Oct 2019 12:25:42 +0000 (15:25 +0300)]
drm/omap: fix max fclk divider for omap36xx

The OMAP36xx and AM/DM37x TRMs say that the maximum divider for DSS fclk
(in CM_CLKSEL_DSS) is 32. Experimentation shows that this is not
correct, and using divider of 32 breaks DSS with a flood or underflows
and sync losts. Dividers up to 31 seem to work fine.

There is another patch to the DT files to limit the divider correctly,
but as the DSS driver also needs to know the maximum divider to be able
to iteratively find good rates, we also need to do the fix in the DSS
driver.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Adam Ford <aford173@gmail.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20191002122542.8449-1-tomi.valkeinen@ti.com
Tested-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Jyri Sarha <jsarha@ti.com>
9 months agodrm/i915: Fix g4x sprite scaling stride check with GTT remapping
Ville Syrjälä [Mon, 30 Sep 2019 18:30:45 +0000 (21:30 +0300)]
drm/i915: Fix g4x sprite scaling stride check with GTT remapping

I forgot to update the g4x sprite scaling stride check when GTT
remapping was introduced. The stride of the original framebuffer
is irrelevant when remapping is used and instead we want to check
the stride of the remapped view.

Also drop the duplicate width_bytes check. We already check that
a few lines earlier.

Fixes: df79cf441910 ("drm/i915: Store the final plane stride in plane_state")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190930183045.662-1-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
(cherry picked from commit 006e570128f413759b9df64b51bae79903679c9b)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
9 months agodrm/i915/dp: Fix dsc bpp calculations, v5.
Maarten Lankhorst [Wed, 25 Sep 2019 08:21:09 +0000 (10:21 +0200)]
drm/i915/dp: Fix dsc bpp calculations, v5.

There was a integer wraparound when mode_clock became too high,
and we didn't correct for the FEC overhead factor when dividing,
with the calculations breaking at HBR3.

As a result our calculated bpp was way too high, and the link width
limitation never came into effect.

Print out the resulting bpp calcululations as a sanity check, just
in case we ever have to debug it later on again.

We also used the wrong factor for FEC. While bspec mentions 2.4%,
all the calculations use 1/0.972261, and the same ratio should be
applied to data M/N as well, so use it there when FEC is enabled.

This fixes the FIFO underrun we are seeing with FEC enabled.

Changes since v2:
- Handle fec_enable in intel_link_compute_m_n, so only data M/N is adjusted. (Ville)
- Fix initial hardware readout for FEC. (Ville)
Changes since v3:
- Remove bogus fec_to_mode_clock. (Ville)
Changes since v4:
- Use the correct register for icl. (Ville)
- Split hw readout to a separate patch.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Fixes: d9218c8f6cf4 ("drm/i915/dp: Add helpers for Compressed BPP and Slice Count for DSC")
Cc: <stable@vger.kernel.org> # v5.0+
Cc: Manasi Navare <manasi.d.navare@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190925082110.17439-1-maarten.lankhorst@linux.intel.com
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit ed06efb801bd291e935238d3fba46fa03d098f0e)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
9 months agoblock: pg: add header include guard
Masahiro Yamada [Sat, 20 Jul 2019 12:05:25 +0000 (21:05 +0900)]
block: pg: add header include guard

Add a header include guard just in case.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
9 months agotimer-of: don't use conditional expression with mixed 'void' types
Linus Torvalds [Wed, 2 Oct 2019 23:16:07 +0000 (16:16 -0700)]
timer-of: don't use conditional expression with mixed 'void' types

Randy Dunlap reports on the sparse list that sparse warns about this
expression:

        of_irq->percpu ? free_percpu_irq(of_irq->irq, clkevt) :
                free_irq(of_irq->irq, clkevt);

and honestly, sparse is correct to warn.  The return type of
free_percpu_irq() is 'void', while free_irq() returns a 'const void *'
that is the devname argument passed in to the request_irq().

You can't mix a void type with a non-void types in a conditional
expression according to the C standard.  It so happens that gcc seems to
accept it - and the resulting type of the expression is void - but
there's really no reason for the kernel to have this kind of
non-standard expression with no real upside.

The natural way to write that expression is with an if-statement:

        if (of_irq->percpu)
                free_percpu_irq(of_irq->irq, clkevt);
        else
                free_irq(of_irq->irq, clkevt);

which is more legible anyway.

I'm not sure why that timer-of code seems to have this odd pattern.  It
does the same at allocation time, but at least there the types match,
and it makes sense as an expression.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 months agoMerge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 2 Oct 2019 22:54:19 +0000 (15:54 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull timer fix from Ingo Molnar:
 "Fix a broadcast-timer handling race that can result in spuriously and
  indefinitely delayed hrtimers and even RCU stalls if the system is
  otherwise quiet"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tick: broadcast-hrtimer: Fix a race in bc_set_next

9 months agoMerge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 2 Oct 2019 22:52:56 +0000 (15:52 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip

Pull membarrier fix from Ingo Molnar:
 "Fix broken locking within membarrier_private_expedited()"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  membarrier: Fix RCU locking bug caused by faulty merge

9 months agoMerge tag 'erofs-for-5.4-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Wed, 2 Oct 2019 20:53:48 +0000 (13:53 -0700)]
Merge tag 'erofs-for-5.4-rc2-fixes' of git://git./linux/kernel/git/xiang/erofs

Pull erofs fixes from Gao Xiang:
 "Three patches to address regressions due to recent cleanups, mainly
  found by stress test on latest mainline kernel (no more regression out
  compared with older kernels for more than a week)

  One additional patch updates sub-entries in MAINTAINERS.

  Summary:

   - Fix error handling in erofs_read_superblock

   - Fix locking in erofs_get_meta_page

   - Fix inplace behavior due to decompression frontend cleanup

   - Update sub-entries in MAINTAINERS in order to better blame"

* tag 'erofs-for-5.4-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: fix mis-inplace determination related with noio chain
  erofs: fix erofs_get_meta_page locking due to a cleanup
  MAINTAINERS: erofs: complete sub-entries for erofs
  erofs: fix return value check in erofs_read_superblock()

9 months agochar/random: Add a newline at the end of the file
Borislav Petkov [Tue, 1 Oct 2019 17:50:23 +0000 (19:50 +0200)]
char/random: Add a newline at the end of the file

On Tue, Oct 01, 2019 at 10:14:40AM -0700, Linus Torvalds wrote:
> The previous state of the file didn't have that 0xa at the end, so you get that
>
>
>   -EXPORT_SYMBOL_GPL(add_bootloader_randomness);
>   \ No newline at end of file
>   +EXPORT_SYMBOL_GPL(add_bootloader_randomness);
>
> which is "the '-' line doesn't have a newline, the '+' line does" marker.

Aaha, that makes total sense, thanks for explaining. Oh well, let's fix
it then so that people don't scratch heads like me.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 months agoxen/xenbus: fix self-deadlock after killing user process
Juergen Gross [Tue, 1 Oct 2019 15:03:55 +0000 (17:03 +0200)]
xen/xenbus: fix self-deadlock after killing user process

In case a user process using xenbus has open transactions and is killed
e.g. via ctrl-C the following cleanup of the allocated resources might
result in a deadlock due to trying to end a transaction in the xenbus
worker thread:

[ 2551.474706] INFO: task xenbus:37 blocked for more than 120 seconds.
[ 2551.492215]       Tainted: P           OE     5.0.0-29-generic #5
[ 2551.510263] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2551.528585] xenbus          D    0    37      2 0x80000080
[ 2551.528590] Call Trace:
[ 2551.528603]  __schedule+0x2c0/0x870
[ 2551.528606]  ? _cond_resched+0x19/0x40
[ 2551.528632]  schedule+0x2c/0x70
[ 2551.528637]  xs_talkv+0x1ec/0x2b0
[ 2551.528642]  ? wait_woken+0x80/0x80
[ 2551.528645]  xs_single+0x53/0x80
[ 2551.528648]  xenbus_transaction_end+0x3b/0x70
[ 2551.528651]  xenbus_file_free+0x5a/0x160
[ 2551.528654]  xenbus_dev_queue_reply+0xc4/0x220
[ 2551.528657]  xenbus_thread+0x7de/0x880
[ 2551.528660]  ? wait_woken+0x80/0x80
[ 2551.528665]  kthread+0x121/0x140
[ 2551.528667]  ? xb_read+0x1d0/0x1d0
[ 2551.528670]  ? kthread_park+0x90/0x90
[ 2551.528673]  ret_from_fork+0x35/0x40

Fix this by doing the cleanup via a workqueue instead.

Reported-by: James Dingwall <james@dingwall.me.uk>
Fixes: fd8aa9095a95c ("xen: optimize xenbus driver for multiple concurrent xenstore accesses")
Cc: <stable@vger.kernel.org> # 4.11
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
9 months agodt-bindings: phy: lantiq: Fix Property Name
Maxime Ripard [Wed, 2 Oct 2019 14:46:40 +0000 (16:46 +0200)]
dt-bindings: phy: lantiq: Fix Property Name

The binding has a typo where resets-names should read reset-names, which in
turn leads to a warning when the example is validated, since reset-names is
being used, and the binding prevent the usage of any property that isn't
described.

Fixes: 088e88be5a38 ("dt-bindings: phy: add binding for the Lantiq VRX200 and ARX300 PCIe PHYs")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
9 months agodt-bindings: iio: ad7192: Fix DTC warning in the example
Maxime Ripard [Wed, 2 Oct 2019 14:45:42 +0000 (16:45 +0200)]
dt-bindings: iio: ad7192: Fix DTC warning in the example

The example contains an SPI bus and device, but doesn't have the
appropriate size and address cells size.

This creates a DTC warning when the example is compiled since the default
ones will not match what the device uses. Let's add them to remove that
warning.

Fixes: f7356e47032c ("dt-bindings: iio: adc: ad7192: Add binding documentation for AD7192")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
9 months agodt-bindings: iio: ad7192: Fix Regulator Properties
Maxime Ripard [Wed, 2 Oct 2019 14:45:41 +0000 (16:45 +0200)]
dt-bindings: iio: ad7192: Fix Regulator Properties

The AD7192 binding describes two regulator properties, avdd-supply and
dvdd-supply, but describes it as a constant string that must be avdd and
dvdd. This is wrong since a *-supply property is actually a phandle, and
results in warnings when the example is validated (or any device tree using
that device, for that matter).

Let's remove that requirement.

Fixes: f7356e47032c ("dt-bindings: iio: adc: ad7192: Add binding documentation for AD7192")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
9 months agodt-bindings: media: rc: Fix redundant string
Maxime Ripard [Wed, 2 Oct 2019 14:44:00 +0000 (16:44 +0200)]
dt-bindings: media: rc: Fix redundant string

The linux,rc-map-name property is described using an enum, yet a value has
been put in that enum twice, resulting in a warning. Let's fix that.

Fixes: 7c31b9d67342 ("media: dt-bindings: media: Add YAML schemas for the generic RC bindings")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
9 months agodt-bindings: dsp: Fix fsl,dsp example
Maxime Ripard [Wed, 2 Oct 2019 14:42:04 +0000 (16:42 +0200)]
dt-bindings: dsp: Fix fsl,dsp example

The fsl,dsp binding requires a memory-region, yet its example doesn't have
one which results in a warning. Let's add a memory-region phandle to the
example.

Fixes: 7db2f2dfc701 ("dt-bindings: dsp: fsl: Add DSP core binding support")
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Rob Herring <robh@kernel.org>
9 months agodrm/amd/display: fix dcn21 Makefile for clang
Arnd Bergmann [Wed, 2 Oct 2019 12:01:25 +0000 (14:01 +0200)]
drm/amd/display: fix dcn21 Makefile for clang

Just like all the other variants, this one passes invalid
compile-time options with clang after the new code got
merged:

clang: error: unknown argument: '-mpreferred-stack-boundary=4'
scripts/Makefile.build:265: recipe for target 'drivers/gpu/drm/amd/amdgpu/../display/dc/dcn21/dcn21_resource.o' failed

Use the same variant that we have for dcn20 to fix compilation.

Fixes: eced51f9babb ("drm/amd/display: Add hubp block for Renoir (v2)")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amd/display: hide an unused variable
Arnd Bergmann [Wed, 18 Sep 2019 19:53:58 +0000 (21:53 +0200)]
drm/amd/display: hide an unused variable

Without CONFIG_DEBUG_FS, we get a warning for an unused
variable:

drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:6020:33: error: unused variable 'source' [-Werror,-Wunused-variable]

Hide the variable in an #ifdef like its only users.

Fixes: 14b2584636c6 ("drm/amd/display: add functionality to grab DPRX CRC entries.")
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amdgpu: display_mode_vba_21: remove uint typedef
Arnd Bergmann [Wed, 2 Oct 2019 12:01:24 +0000 (14:01 +0200)]
drm/amdgpu: display_mode_vba_21: remove uint typedef

The type definition for 'uint' clashes with the generic kernel
headers:

drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn21/display_mode_vba_21.c:43:22: error: redefinition of typedef 'uint' is a C11 feature [-Werror,-Wtypedef-redefinition]
include/linux/types.h:92:23: note: previous definition is here

Just remove this type and use plain 'unsigned int' consistently,
as it is already use almost everywhere in this file.

Fixes: b04641a3f4c5 ("drm/amd/display: Add Renoir DML")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amdgpu: hide another #warning
Arnd Bergmann [Wed, 2 Oct 2019 12:01:23 +0000 (14:01 +0200)]
drm/amdgpu: hide another #warning

An earlier patch of mine disabled some #warning statements
that get in the way of build testing, but then another
instance was added around the same time.

Remove that as well.

Fixes: b5203d16aef4 ("drm/amd/amdgpu: hide #warning for missing DC config")
Fixes: e1c14c43395c ("drm/amdgpu: Enable DC on Renoir")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amdgpu: make pmu support optional, again
Arnd Bergmann [Wed, 2 Oct 2019 12:01:22 +0000 (14:01 +0200)]
drm/amdgpu: make pmu support optional, again

When CONFIG_PERF_EVENTS is disabled, we cannot compile the pmu
portion of the amdgpu driver:

drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:48:38: error: no member named 'hw' in 'struct perf_event'
        struct hw_perf_event *hwc = &event->hw;
                                     ~~~~~  ^
drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:51:13: error: no member named 'attr' in 'struct perf_event'
        if (event->attr.type != event->pmu->type)
            ~~~~~  ^
...

The same bug was already fixed by commit d155bef0636e ("amdgpu: make pmu
support optional") but broken again by what looks like an incorrectly
rebased patch.

Fixes: 64f55e629237 ("drm/amdgpu: Add RAS EEPROM table.")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amd/display: memory leak
Navid Emamdoost [Tue, 17 Sep 2019 03:20:44 +0000 (22:20 -0500)]
drm/amd/display: memory leak

In dcn*_clock_source_create when dcn20_clk_src_construct fails allocated
clk_src needs release.

Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amdgpu: fix multiple memory leaks in acp_hw_init
Navid Emamdoost [Wed, 2 Oct 2019 03:46:07 +0000 (22:46 -0500)]
drm/amdgpu: fix multiple memory leaks in acp_hw_init

In acp_hw_init there are some allocations that needs to be released in
case of failure:

1- adev->acp.acp_genpd should be released if any allocation attemp for
adev->acp.acp_cell, adev->acp.acp_res or i2s_pdata fails.
2- all of those allocations should be released if
mfd_add_hotplug_devices or pm_genpd_add_device fail.
3- Release is needed in case of time out values expire.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amdgpu: return tcc_disabled_mask to userspace
Marek Olšák [Tue, 24 Sep 2019 21:53:25 +0000 (17:53 -0400)]
drm/amdgpu: return tcc_disabled_mask to userspace

UMDs need this for correct programming of harvested chips.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amdgpu: don't increment vram lost if we are in hibernation
Alex Deucher [Tue, 1 Oct 2019 21:45:27 +0000 (16:45 -0500)]
drm/amdgpu: don't increment vram lost if we are in hibernation

We reset the GPU as part of our hibernation sequence so we need
to make sure we don't mark vram as lost in that case.

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=111879
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agoRevert "drm/amdgpu: disable stutter mode for renoir"
Aaron Liu [Mon, 16 Sep 2019 02:05:09 +0000 (10:05 +0800)]
Revert "drm/amdgpu: disable stutter mode for renoir"

This reverts commit 5813f97a5969bf1e7e723397a74e00b5de7278d6.

Since SBIOS WCD9925N, NMI printing disappeared. Hence enable stutter
mode.

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agodrm/amd/powerplay: add sensor lock support for smu
Kevin Wang [Thu, 26 Sep 2019 08:22:13 +0000 (16:22 +0800)]
drm/amd/powerplay: add sensor lock support for smu

when multithreading access sysfs of amdgpu_pm_info at the sametime.
the swsmu driver cause smu firmware hang.

eg:
single thread access:
Message A + Param A ==> right
Message B + Param B ==> right
Message C + Param C ==> right
multithreading access:
Message A + Param B ==> error
Message B + Param A ==> error
Message C + Param C ==> right

the patch will add sensor lock(mutex) to avoid this error.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.3.x
9 months agodrm/amd/powerplay: change metrics update period from 1ms to 100ms
Kevin Wang [Thu, 26 Sep 2019 08:16:41 +0000 (16:16 +0800)]
drm/amd/powerplay: change metrics update period from 1ms to 100ms

v2:
change period from 10ms to 100ms (typo error)

too high frequence to update mertrics table will cause smu firmware
error,so change mertrics table update period from 1ms to 100ms
(navi10, 12, 14)

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 5.3.x
9 months agodrm/amdgpu: revert "disable bulk moves for now"
Christian König [Thu, 12 Sep 2019 10:13:50 +0000 (12:13 +0200)]
drm/amdgpu: revert "disable bulk moves for now"

This reverts commit a213c2c7e235cfc0e0a161a558f7fdf2fb3a624a.

The changes to fix this should have landed in 5.1.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Zhou, David(ChunMing) <David1.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
9 months agoxen/efi: have a common runtime setup function
Juergen Gross [Tue, 1 Oct 2019 08:25:34 +0000 (10:25 +0200)]
xen/efi: have a common runtime setup function

Today the EFI runtime functions are setup in architecture specific
code (x86 and arm), with the functions themselves living in drivers/xen
as they are not architecture dependent.

As the setup is exactly the same for arm and x86 move the setup to
drivers/xen, too. This at once removes the need to make the single
functions global visible.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
[boris: "Dropped EXPORT_SYMBOL_GPL(xen_efi_runtime_setup)"]
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
9 months agoarm: xen: mm: use __GPF_DMA32 for arm64
Peng Fan [Mon, 16 Sep 2019 09:51:33 +0000 (09:51 +0000)]
arm: xen: mm: use __GPF_DMA32 for arm64

arm64 shares some code under arch/arm/xen, including mm.c.
However ZONE_DMA is removed by commit
ad67f5a6545("arm64: replace ZONE_DMA with ZONE_DMA32").

So add a check if CONFIG_ZONE_DMA32 is enabled use __GFP_DMA32.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
9 months agoxen/balloon: Clear PG_offline in balloon_retrieve()
David Hildenbrand [Tue, 1 Oct 2019 09:01:52 +0000 (11:01 +0200)]
xen/balloon: Clear PG_offline in balloon_retrieve()

Let's move the clearing to balloon_retrieve(). In
bp_state increase_reservation(), we now clear the flag a little earlier
than before, however, this should not matter for XEN.

Suggested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
9 months agoxen/balloon: Mark pages PG_offline in balloon_append()
David Hildenbrand [Tue, 1 Oct 2019 09:01:51 +0000 (11:01 +0200)]
xen/balloon: Mark pages PG_offline in balloon_append()

Let's move the __SetPageOffline() call which all callers perform into
balloon_append().

In bp_state decrease_reservation(), pages are now marked PG_offline a
little later than before, however, this should not matter for XEN.

Suggested-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
9 months agoxen/balloon: Drop __balloon_append()
David Hildenbrand [Tue, 1 Oct 2019 09:01:50 +0000 (11:01 +0200)]
xen/balloon: Drop __balloon_append()

Let's simply use balloon_append() directly.

Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
9 months agoxen/balloon: Set pages PageOffline() in balloon_add_region()
David Hildenbrand [Fri, 27 Sep 2019 15:46:28 +0000 (17:46 +0200)]
xen/balloon: Set pages PageOffline() in balloon_add_region()

We are missing a __SetPageOffline(), which is why we can get
!PageOffline() pages onto the balloon list, where
alloc_xenballooned_pages() will complain:

page:ffffea0003e7ffc0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0
flags: 0xffffe00001000(reserved)
raw: 000ffffe00001000 dead000000000100 dead000000000200 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: VM_BUG_ON_PAGE(!PageOffline(page))
------------[ cut here ]------------
kernel BUG at include/linux/page-flags.h:744!
invalid opcode: 0000 [#1] SMP NOPTI

Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Tested-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Fixes: 77c4adf6a6df ("xen/balloon: mark inflated pages PG_offline")
Cc: stable@vger.kernel.org # v5.1+
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
9 months agoARM: xen: unexport HYPERVISOR_platform_op function
Stefano Stabellini [Tue, 1 Oct 2019 17:38:03 +0000 (10:38 -0700)]
ARM: xen: unexport HYPERVISOR_platform_op function

HYPERVISOR_platform_op() is an inline function and should not
be exported. Since commit 15bfc2348d54 ("modpost: check for
static EXPORT_SYMBOL* functions"), this causes a warning:

WARNING: "HYPERVISOR_platform_op" [vmlinux] is a static EXPORT_SYMBOL_GPL

Instead, export the underlying function called by the static inline:
HYPERVISOR_platform_op_raw.

Fixes: 15bfc2348d54 ("modpost: check for static EXPORT_SYMBOL* functions")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Stefano Stabellini <stefano.stabellini@xilinx.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
9 months agomembarrier: Fix RCU locking bug caused by faulty merge
Peter Zijlstra [Tue, 1 Oct 2019 08:50:33 +0000 (10:50 +0200)]
membarrier: Fix RCU locking bug caused by faulty merge

The following commit:

  227a4aadc75b ("sched/membarrier: Fix p->mm->membarrier_state racy load")

got fat fingered by me when merging it with other patches. It meant to move
the RCU section out of the for loop but ended up doing it partially, leaving
a superfluous rcu_read_lock() inside, causing havok.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kirill Tkhai <tkhai@yandex.ru>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russell King - ARM Linux admin <linux@armlinux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-tip-commits@vger.kernel.org
Fixes: 227a4aadc75b ("sched/membarrier: Fix p->mm->membarrier_state racy load")
Link: https://lkml.kernel.org/r/20191001085033.GP4519@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
9 months agoRevert "s390/dasd: Add discard support for ESE volumes"
Stefan Haberland [Tue, 1 Oct 2019 15:34:39 +0000 (17:34 +0200)]
Revert "s390/dasd: Add discard support for ESE volumes"

This reverts commit 7e64db1597fe114b83fe17d0ba96c6aa5fca419a.

The thin provisioning feature introduces an IOCTL and the discard support
to allow userspace tools and filesystems to release unused and previously
allocated space respectively.

During some internal performance improvements and further tests, the
release of allocated space revealed some issues that may lead to data
corruption in some configurations when filesystems are mounted with
discard support enabled.

While we're working on a fix and trying to clarify the situation,
this commit reverts the discard support for ESE volumes to prevent
potential data corruption.

Cc: <stable@vger.kernel.org> # 5.3
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
9 months agos390/dasd: Fix error handling during online processing
Jan Höppner [Tue, 1 Oct 2019 15:34:38 +0000 (17:34 +0200)]
s390/dasd: Fix error handling during online processing

It is possible that the CCW commands for reading volume and extent pool
information are not supported, either by the storage server (for
dedicated DASDs) or by z/VM (for virtual devices, such as MDISKs).

As a command reject will occur in such a case, the current error
handling leads to a failing online processing and thus the DASD can't be
used at all.

Since the data being read is not essential for an fully operational
DASD, the error handling can be removed. Information about the failing
command is sent to the s390dbf debug feature.

Fixes: c729696bcf8b ("s390/dasd: Recognise data for ESE volumes")
Cc: <stable@vger.kernel.org> # 5.3
Reported-by: Frank Heimes <frank.heimes@canonical.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
9 months agoio_uring: use __kernel_timespec in timeout ABI
Arnd Bergmann [Tue, 1 Oct 2019 15:53:29 +0000 (09:53 -0600)]
io_uring: use __kernel_timespec in timeout ABI

All system calls use struct __kernel_timespec instead of the old struct
timespec, but this one was just added with the old-style ABI. Change it
now to enforce the use of __kernel_timespec, avoiding ABI confusion and
the need for compat handlers on 32-bit architectures.

Any user space caller will have to use __kernel_timespec now, but this
is unambiguous and works for any C library regardless of the time_t
definition. A nicer way to specify the timeout would have been a less
ambiguous 64-bit nanosecond value, but I suppose it's too late now to
change that as this would impact both 32-bit and 64-bit users.

Fixes: 5262f567987d ("io_uring: IORING_OP_TIMEOUT support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
9 months agoloop: change queue block size to match when using DIO
Martijn Coenen [Wed, 4 Sep 2019 19:49:01 +0000 (21:49 +0200)]
loop: change queue block size to match when using DIO

The loop driver assumes that if the passed in fd is opened with
O_DIRECT, the caller wants to use direct I/O on the loop device.
However, if the underlying block device has a different block size than
the loop block queue, direct I/O can't be enabled. Instead of requiring
userspace to manually change the blocksize and re-enable direct I/O,
just change the queue block sizes to match, as well as the io_min size.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martijn Coenen <maco@android.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
9 months agoperf_event_open: switch to copy_struct_from_user()
Aleksa Sarai [Tue, 1 Oct 2019 01:10:55 +0000 (11:10 +1000)]
perf_event_open: switch to copy_struct_from_user()

Switch perf_event_open() syscall from it's own copying
struct perf_event_attr from userspace to the new dedicated
copy_struct_from_user() helper.

The change is very straightforward, and helps unify the syscall
interface for struct-from-userspace syscalls.

Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
[christian.brauner@ubuntu.com: improve commit message]
Link: https://lore.kernel.org/r/20191001011055.19283-5-cyphar@cyphar.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agosched_setattr: switch to copy_struct_from_user()
Aleksa Sarai [Tue, 1 Oct 2019 01:10:54 +0000 (11:10 +1000)]
sched_setattr: switch to copy_struct_from_user()

Switch sched_setattr() syscall from it's own copying struct sched_attr
from userspace to the new dedicated copy_struct_from_user() helper.

The change is very straightforward, and helps unify the syscall
interface for struct-from-userspace syscalls. Ideally we could also
unify sched_getattr(2)-style syscalls as well, but unfortunately the
correct semantics for such syscalls are much less clear (see [1] for
more detail). In future we could come up with a more sane idea for how
the syscall interface should look.

[1]: commit 1251201c0d34 ("sched/core: Fix uclamp ABI bug, clean up and
     robustify sched_read_attr() ABI logic and code")

Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
[christian.brauner@ubuntu.com: improve commit message]
Link: https://lore.kernel.org/r/20191001011055.19283-4-cyphar@cyphar.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agoclone3: switch to copy_struct_from_user()
Aleksa Sarai [Tue, 1 Oct 2019 01:10:53 +0000 (11:10 +1000)]
clone3: switch to copy_struct_from_user()

Switch clone3() syscall from it's own copying struct clone_args from
userspace to the new dedicated copy_struct_from_user() helper.

The change is very straightforward, and helps unify the syscall
interface for struct-from-userspace syscalls. Additionally, explicitly
define CLONE_ARGS_SIZE_VER0 to match the other users of the
struct-extension pattern.

Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
[christian.brauner@ubuntu.com: improve commit message]
Link: https://lore.kernel.org/r/20191001011055.19283-3-cyphar@cyphar.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agolib: introduce copy_struct_from_user() helper
Aleksa Sarai [Tue, 1 Oct 2019 01:10:52 +0000 (11:10 +1000)]
lib: introduce copy_struct_from_user() helper

A common pattern for syscall extensions is increasing the size of a
struct passed from userspace, such that the zero-value of the new fields
result in the old kernel behaviour (allowing for a mix of userspace and
kernel vintages to operate on one another in most cases).

While this interface exists for communication in both directions, only
one interface is straightforward to have reasonable semantics for
(userspace passing a struct to the kernel). For kernel returns to
userspace, what the correct semantics are (whether there should be an
error if userspace is unaware of a new extension) is very
syscall-dependent and thus probably cannot be unified between syscalls
(a good example of this problem is [1]).

Previously there was no common lib/ function that implemented
the necessary extension-checking semantics (and different syscalls
implemented them slightly differently or incompletely[2]). Future
patches replace common uses of this pattern to make use of
copy_struct_from_user().

Some in-kernel selftests that insure that the handling of alignment and
various byte patterns are all handled identically to memchr_inv() usage.

[1]: commit 1251201c0d34 ("sched/core: Fix uclamp ABI bug, clean up and
     robustify sched_read_attr() ABI logic and code")

[2]: For instance {sched_setattr,perf_event_open,clone3}(2) all do do
     similar checks to copy_struct_from_user() while rt_sigprocmask(2)
     always rejects differently-sized struct arguments.

Suggested-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Link: https://lore.kernel.org/r/20191001011055.19283-2-cyphar@cyphar.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agokvm: vmx: Limit guest PMCs to those supported on the host
Jim Mattson [Mon, 30 Sep 2019 23:38:54 +0000 (16:38 -0700)]
kvm: vmx: Limit guest PMCs to those supported on the host

KVM can only virtualize as many PMCs as the host supports.

Limit the number of generic counters and fixed counters to the number
of corresponding counters supported on the host, rather than to
INTEL_PMC_MAX_GENERIC and INTEL_PMC_MAX_FIXED, respectively.

Note that INTEL_PMC_MAX_GENERIC is currently 32, which exceeds the 18
contiguous MSR indices reserved by Intel for event selectors. Since
the existing code relies on a contiguous range of MSR indices for
event selectors, it can't possibly work for more than 18 general
purpose counters.

Fixes: f5132b01386b5a ("KVM: Expose a version 2 architectural PMU to a guests")
Signed-off-by: Jim Mattson <jmattson@google.com>
Reviewed-by: Marc Orr <marcorr@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 months agoxen/efi: Set nonblocking callbacks
Ross Lagerwall [Fri, 27 Sep 2019 15:49:20 +0000 (16:49 +0100)]
xen/efi: Set nonblocking callbacks

Other parts of the kernel expect these nonblocking EFI callbacks to
exist and crash when running under Xen. Since the implementations of
xen_efi_set_variable() and xen_efi_query_variable_info() do not take any
locks, use them for the nonblocking callbacks too.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
9 months agoerofs: fix mis-inplace determination related with noio chain
Gao Xiang [Sun, 22 Sep 2019 10:04:34 +0000 (18:04 +0800)]
erofs: fix mis-inplace determination related with noio chain

Fix a recent cleanup patch. noio (bypass) chain is
handled asynchronously against submit chain, therefore
inplace I/O or pagevec cannot be applied to such pages.
Add detailed comment for this as well.

Fixes: 97e86a858bc3 ("staging: erofs: tidy up decompression frontend")
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Link: https://lore.kernel.org/r/20190922100434.229340-1-gaoxiang25@huawei.com
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
9 months agoerofs: fix erofs_get_meta_page locking due to a cleanup
Gao Xiang [Sat, 21 Sep 2019 18:43:55 +0000 (02:43 +0800)]
erofs: fix erofs_get_meta_page locking due to a cleanup

After doing more drop_caches stress test on
our products, I found the mistake introduced by
a very recent cleanup [1].

The current rule is that "erofs_get_meta_page"
should be returned with page locked (although
it's mostly unnecessary for read-only fs after
pages are PG_uptodate), but a fix should be
done for this.

[1] https://lore.kernel.org/r/20190904020912.63925-26-gaoxiang25@huawei.com
Fixes: 618f40ea026b ("erofs: use read_cache_page_gfp for erofs_get_meta_page")
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Link: https://lore.kernel.org/r/20190921184355.149928-1-gaoxiang25@huawei.com
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
9 months agoMAINTAINERS: erofs: complete sub-entries for erofs
Gao Xiang [Thu, 19 Sep 2019 06:28:38 +0000 (14:28 +0800)]
MAINTAINERS: erofs: complete sub-entries for erofs

Add a formal git tree and missing files for erofs
after moving out of staging for everyone to blame
in order for better improvement.

Acked-by: Chao Yu <yuchao0@huawei.com>
Link: https://lore.kernel.org/r/20190919062838.106423-1-gaoxiang25@huawei.com
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
9 months agoerofs: fix return value check in erofs_read_superblock()
Wei Yongjun [Wed, 18 Sep 2019 08:30:33 +0000 (08:30 +0000)]
erofs: fix return value check in erofs_read_superblock()

In case of error, the function read_mapping_page() returns
ERR_PTR() not NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Fixes: fe7c2423570d ("erofs: use read_mapping_page instead of sb_bread")
Reviewed-by: Gao Xiang <gaoxiang25@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20190918083033.47780-1-weiyongjun1@huawei.com
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
9 months agoselftests: pidfd: Fix undefined reference to pthread_create()
Shuah Khan [Tue, 24 Sep 2019 19:52:37 +0000 (13:52 -0600)]
selftests: pidfd: Fix undefined reference to pthread_create()

Fix build failure:

undefined reference to `pthread_create'
collect2: error: ld returned 1 exit status

Fix CFLAGS to include pthread correctly.

Fixes: 740378dc7834 ("pidfd: add polling selftests")
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20190924195237.30519-1-skhan@linuxfoundation.org
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agosched: Add __ASSEMBLY__ guards around struct clone_args
Seth Forshee [Tue, 17 Sep 2019 07:18:53 +0000 (09:18 +0200)]
sched: Add __ASSEMBLY__ guards around struct clone_args

The addition of struct clone_args to uapi/linux/sched.h is not protected
by __ASSEMBLY__ guards, causing a failure to build from source for glibc
on RISC-V. Add the guards to fix this.

Fixes: 7f192e3cd316 ("fork: add clone3")
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Cc: <stable@vger.kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20190917071853.12385-1-seth.forshee@canonical.com
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
9 months agoLinux 5.4-rc1 v5.4-rc1
Linus Torvalds [Mon, 30 Sep 2019 17:35:40 +0000 (10:35 -0700)]
Linux 5.4-rc1

9 months agoMerge tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Mon, 30 Sep 2019 17:25:24 +0000 (10:25 -0700)]
Merge tag 'for-5.4-rc1-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A bunch of fixes that accumulated in recent weeks, mostly material for
  stable.

  Summary:

   - fix for regression from 5.3 that prevents to use balance convert
     with single profile

   - qgroup fixes: rescan race, accounting leak with multiple writers,
     potential leak after io failure recovery

   - fix for use after free in relocation (reported by KASAN)

   - other error handling fixups"

* tag 'for-5.4-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: qgroup: Fix reserved data space leak if we have multiple reserve calls
  btrfs: qgroup: Fix the wrong target io_tree when freeing reserved data space
  btrfs: Fix a regression which we can't convert to SINGLE profile
  btrfs: relocation: fix use-after-free on dead relocation roots
  Btrfs: fix race setting up and completing qgroup rescan workers
  Btrfs: fix missing error return if writeback for extent buffer never started
  btrfs: adjust dirty_metadata_bytes after writeback failure of extent buffer
  Btrfs: fix selftests failure due to uninitialized i_mode in test inodes

9 months agoMerge tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux
Linus Torvalds [Mon, 30 Sep 2019 17:16:17 +0000 (10:16 -0700)]
Merge tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux

Pull csky updates from Guo Ren:
 "This round of csky subsystem just some fixups:

   - Fix mb() synchronization problem

   - Fix dma_alloc_coherent with PAGE_SO attribute

   - Fix cache_op failed when cross memory ZONEs

   - Optimize arch_sync_dma_for_cpu/device with dma_inv_range

   - Fix ioremap function losing

   - Fix arch_get_unmapped_area() implementation

   - Fix defer cache flush for 610

   - Support kernel non-aligned access

   - Fix 610 vipt cache flush mechanism

   - Fix add zero_fp fixup perf backtrace panic

   - Move static keyword to the front of declaration

   - Fix csky_pmu.max_period assignment

   - Use generic free_initrd_mem()

   - entry: Remove unneeded need_resched() loop"

* tag 'csky-for-linus-5.4-rc1' of git://github.com/c-sky/csky-linux:
  csky: Move static keyword to the front of declaration
  csky: entry: Remove unneeded need_resched() loop
  csky: Fixup csky_pmu.max_period assignment
  csky: Fixup add zero_fp fixup perf backtrace panic
  csky: Use generic free_initrd_mem()
  csky: Fixup 610 vipt cache flush mechanism
  csky: Support kernel non-aligned access
  csky: Fixup defer cache flush for 610
  csky: Fixup arch_get_unmapped_area() implementation
  csky: Fixup ioremap function losing
  csky: Optimize arch_sync_dma_for_cpu/device with dma_inv_range
  csky/dma: Fixup cache_op failed when cross memory ZONEs
  csky: Fixup dma_alloc_coherent with PAGE_SO attribute
  csky: Fixup mb() synchronization problem

9 months agoMerge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Mon, 30 Sep 2019 17:04:28 +0000 (10:04 -0700)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes that have trickled in through the merge window:

   - Video fixes for OMAP due to panel-dpi driver removal

   - Clock fixes for OMAP that broke no-idle quirks + nfsroot on DRA7

   - Fixing arch version on ASpeed ast2500

   - Two fixes for reset handling on ARM SCMI"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: aspeed: ast2500 is ARMv6K
  reset: reset-scmi: add missing handle initialisation
  firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks

9 months agokvm: x86, powerpc: do not allow clearing largepages debugfs entry
Paolo Bonzini [Mon, 30 Sep 2019 16:48:44 +0000 (18:48 +0200)]
kvm: x86, powerpc: do not allow clearing largepages debugfs entry

The largepages debugfs entry is incremented/decremented as shadow
pages are created or destroyed.  Clearing it will result in an
underflow, which is harmless to KVM but ugly (and could be
misinterpreted by tools that use debugfs information), so make
this particular statistic read-only.

Cc: kvm-ppc@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
9 months agoMerge tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt...
Linus Torvalds [Mon, 30 Sep 2019 16:29:53 +0000 (09:29 -0700)]
Merge tag 'trace-v5.4-3' of git://git./linux/kernel/git/rostedt/linux-trace

Pull tracing fixes from Steven Rostedt:
 "A few more tracing fixes:

   - Fix a buffer overflow by checking nr_args correctly in probes

   - Fix a warning that is reported by clang

   - Fix a possible memory leak in error path of filter processing

   - Fix the selftest that checks for failures, but wasn't failing

   - Minor clean up on call site output of a memory trace event"

* tag 'trace-v5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  selftests/ftrace: Fix same probe error test
  mm, tracing: Print symbol name for call_site in trace events
  tracing: Have error path in predicate_parse() free its allocated memory
  tracing: Fix clang -Wint-in-bool-context warnings in IF_ASSIGN macro
  tracing/probe: Fix to check the difference of nr_args before adding probe

9 months agodrm/tilcdc: include linux/pinctrl/consumer.h again
Arnd Bergmann [Mon, 9 Sep 2019 20:33:57 +0000 (22:33 +0200)]
drm/tilcdc: include linux/pinctrl/consumer.h again

This was apparently dropped by accident in a recent
cleanup, causing a build failure in some configurations now:

drivers/gpu/drm/tilcdc/tilcdc_tfp410.c:296:12: error: implicit declaration of function 'devm_pinctrl_get_select_default' [-Werror,-Wimplicit-function-declaration]

Fixes: fcb57664172e ("drm/tilcdc: drop use of drmP.h")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Link: https://patchwork.freedesktop.org/patch/msgid/02b03f74cf941f52a941a36bdc8dabb4a69fd87e.1569852588.git.jsarha@ti.com
Acked-by: Sam Ravnborg <sam@ravnborg.org>
9 months agoMerge tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Mon, 30 Sep 2019 16:21:53 +0000 (09:21 -0700)]
Merge tag 'mmc-v5.4-2' of git://git./linux/kernel/git/ulfh/mmc

Pull more MMC updates from Ulf Hansson:
 "A couple more updates/fixes for MMC:

   - sdhci-pci: Add Genesys Logic GL975x support

   - sdhci-tegra: Recover loss in throughput for DMA

   - sdhci-of-esdhc: Fix DMA bug"

* tag 'mmc-v5.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: host: sdhci-pci: Add Genesys Logic GL975x support
  mmc: tegra: Implement ->set_dma_mask()
  mmc: sdhci: Let drivers define their DMA mask
  mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence
  mmc: sdhci: improve ADMA error reporting

9 months agocsky: Move static keyword to the front of declaration
Krzysztof Wilczynski [Tue, 3 Sep 2019 11:36:51 +0000 (13:36 +0200)]
csky: Move static keyword to the front of declaration

Move the static keyword to the front of declaration of
csky_pmu_of_device_ids, and resolve the following compiler
warning that can be seen when building with warnings
enabled (W=1):

arch/csky/kernel/perf_event.c:1340:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
9 months agocsky: entry: Remove unneeded need_resched() loop
Valentin Schneider [Mon, 23 Sep 2019 14:36:14 +0000 (15:36 +0100)]
csky: entry: Remove unneeded need_resched() loop

Since the enabling and disabling of IRQs within preempt_schedule_irq()
is contained in a need_resched() loop, we don't need the outer arch
code loop.

Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
9 months agoMerge tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...
Linus Torvalds [Mon, 30 Sep 2019 02:52:52 +0000 (19:52 -0700)]
Merge tag 'char-misc-5.4-rc1' of git://git./linux/kernel/git/gregkh/char-misc

Pull Documentation/process update from Greg KH:
 "Here are two small Documentation/process/embargoed-hardware-issues.rst
  file updates that missed my previous char/misc pull request.

  The first one adds an Intel representative for the process, and the
  second one cleans up the text a bit more when it comes to how the
  disclosure rules work, as it was a bit confusing to some companies"

* tag 'char-misc-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  Documentation/process: Clarify disclosure rules
  Documentation/process: Volunteer as the ambassador for Intel

9 months agoMerge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Mon, 30 Sep 2019 02:42:07 +0000 (19:42 -0700)]
Merge branch 'work.misc' of git://git./linux/kernel/git/viro/vfs

Pull more vfs updates from Al Viro:
 "A couple of misc patches"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  afs dynroot: switch to simple_dir_operations
  fs/handle.c - fix up kerneldoc

9 months agoMerge tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Mon, 30 Sep 2019 02:37:32 +0000 (19:37 -0700)]
Merge tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull more cifs updates from Steve French:
 "Fixes from the recent SMB3 Test events and Storage Developer
  Conference (held the last two weeks).

  Here are nine smb3 patches including an important patch for debugging
  traces with wireshark, with three patches marked for stable.

  Additional fixes from last week to better handle some newly discovered
  reparse points, and a fix the create/mkdir path for setting the mode
  more atomically (in SMB3 Create security descriptor context), and one
  for path name processing are still being tested so are not included
  here"

* tag '5.4-rc-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  CIFS: Fix oplock handling for SMB 2.1+ protocols
  smb3: missing ACL related flags
  smb3: pass mode bits into create calls
  smb3: Add missing reparse tags
  CIFS: fix max ea value size
  fs/cifs/sess.c: Remove set but not used variable 'capabilities'
  fs/cifs/smb2pdu.c: Make SMB2_notify_init static
  smb3: fix leak in "open on server" perf counter
  smb3: allow decryption keys to be dumped by admin for debugging

9 months agocsky: Fixup csky_pmu.max_period assignment
Mao Han [Wed, 25 Sep 2019 09:23:02 +0000 (17:23 +0800)]
csky: Fixup csky_pmu.max_period assignment

The csky_pmu.max_period has type u64, and BIT() can only return
32 bits unsigned long on C-SKY. The initialization for max_period
will be incorrect when count_width is bigger than 32.

Use BIT_ULL()

Signed-off-by: Mao Han <han_mao@c-sky.com>
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
9 months agocsky: Fixup add zero_fp fixup perf backtrace panic
Guo Ren [Wed, 25 Sep 2019 11:56:16 +0000 (19:56 +0800)]
csky: Fixup add zero_fp fixup perf backtrace panic

We need set fp zero to let backtrace know the end. The patch fixup perf
callchain panic problem, because backtrace didn't know what is the end
of fp.

Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reported-by: Mao Han <han_mao@c-sky.com>
9 months agocsky: Use generic free_initrd_mem()
Mike Rapoport [Wed, 28 Aug 2019 13:35:19 +0000 (16:35 +0300)]
csky: Use generic free_initrd_mem()

The csky implementation of free_initrd_mem() is an open-coded version of
free_reserved_area() without poisoning.

Remove it and make csky use the generic version of free_initrd_mem().

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Guo Ren <guoren@kernel.org>
9 months agoMerge branch 'entropy'
Linus Torvalds [Mon, 30 Sep 2019 02:25:39 +0000 (19:25 -0700)]
Merge branch 'entropy'

Merge active entropy generation updates.

This is admittedly partly "for discussion".  We need to have a way
forward for the boot time deadlocks where user space ends up waiting for
more entropy, but no entropy is forthcoming because the system is
entirely idle just waiting for something to happen.

While this was triggered by what is arguably a user space bug with
GDM/gnome-session asking for secure randomness during early boot, when
they didn't even need any such truly secure thing, the issue ends up
being that our "getrandom()" interface is prone to that kind of
confusion, because people don't think very hard about whether they want
to block for sufficient amounts of entropy.

The approach here-in is to decide to not just passively wait for entropy
to happen, but to start actively collecting it if it is missing.  This
is not necessarily always possible, but if the architecture has a CPU
cycle counter, there is a fair amount of noise in the exact timings of
reasonably complex loads.

We may end up tweaking the load and the entropy estimates, but this
should be at least a reasonable starting point.

As part of this, we also revert the revert of the ext4 IO pattern
improvement that ended up triggering the reported lack of external
entropy.

* getrandom() active entropy waiting:
  Revert "Revert "ext4: make __ext4_get_inode_loc plug""
  random: try to actively add entropy rather than passively wait for it

9 months agoRevert "Revert "ext4: make __ext4_get_inode_loc plug""
Linus Torvalds [Mon, 30 Sep 2019 00:59:23 +0000 (17:59 -0700)]
Revert "Revert "ext4: make __ext4_get_inode_loc plug""

This reverts commit 72dbcf72156641fde4d8ea401e977341bfd35a05.

Instead of waiting forever for entropy that may just not happen, we now
try to actively generate entropy when required, and are thus hopefully
avoiding the problem that caused the nice ext4 IO pattern fix to be
reverted.

So revert the revert.

Cc: Ahmed S. Darwish <darwish.07@gmail.com>
Cc: Ted Ts'o <tytso@mit.edu>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Alexander E. Patrakov <patrakov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 months agorandom: try to actively add entropy rather than passively wait for it
Linus Torvalds [Sat, 28 Sep 2019 23:53:52 +0000 (16:53 -0700)]
random: try to actively add entropy rather than passively wait for it

For 5.3 we had to revert a nice ext4 IO pattern improvement, because it
caused a bootup regression due to lack of entropy at bootup together
with arguably broken user space that was asking for secure random
numbers when it really didn't need to.

See commit 72dbcf721566 (Revert "ext4: make __ext4_get_inode_loc plug").

This aims to solve the issue by actively generating entropy noise using
the CPU cycle counter when waiting for the random number generator to
initialize.  This only works when you have a high-frequency time stamp
counter available, but that's the case on all modern x86 CPU's, and on
most other modern CPU's too.

What we do is to generate jitter entropy from the CPU cycle counter
under a somewhat complex load: calling the scheduler while also
guaranteeing a certain amount of timing noise by also triggering a
timer.

I'm sure we can tweak this, and that people will want to look at other
alternatives, but there's been a number of papers written on jitter
entropy, and this should really be fairly conservative by crediting one
bit of entropy for every timer-induced jump in the cycle counter.  Not
because the timer itself would be all that unpredictable, but because
the interaction between the timer and the loop is going to be.

Even if (and perhaps particularly if) the timer actually happens on
another CPU, the cacheline interaction between the loop that reads the
cycle counter and the timer itself firing is going to add perturbations
to the cycle counter values that get mixed into the entropy pool.

As Thomas pointed out, with a modern out-of-order CPU, even quite simple
loops show a fair amount of hard-to-predict timing variability even in
the absense of external interrupts.  But this tries to take that further
by actually having a fairly complex interaction.

This is not going to solve the entropy issue for architectures that have
no CPU cycle counter, but it's not clear how (and if) that is solvable,
and the hardware in question is largely starting to be irrelevant.  And
by doing this we can at least avoid some of the even more contentious
approaches (like making the entropy waiting time out in order to avoid
the possibly unbounded waiting).

Cc: Ahmed Darwish <darwish.07@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Nicholas Mc Guire <hofrat@opentech.at>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Alexander E. Patrakov <patrakov@gmail.com>
Cc: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
9 months agoMerge tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git...
Olof Johansson [Sun, 29 Sep 2019 18:19:25 +0000 (11:19 -0700)]
Merge tag 'fixes-5.4-merge-window' of git://git./linux/kernel/git/tmlind/linux-omap into arm/fixes

Fixes for omap variants

Few fixes for ti-sysc interconnect target module driver for no-idle
quirks that caused nfsroot to fail on some dra7 boards.

And let's fixes to get LCD working again for logicpd board that got
broken a while back with removal of panel-dpi driver. We need to now
use generic CONFIG_DRM_PANEL_SIMPLE instead.

* tag 'fixes-5.4-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  bus: ti-sysc: Remove unpaired sysc_clkdm_deny_idle()
  ARM: dts: logicpd-som-lv: Fix i2c2 and i2c3 Pin mux
  ARM: dts: am3517-evm: Fix missing video
  ARM: dts: logicpd-torpedo-baseboard: Fix missing video
  ARM: omap2plus_defconfig: Fix missing video
  bus: ti-sysc: Fix handling of invalid clocks
  bus: ti-sysc: Fix clock handling for no-idle quirks

Link: https://lore.kernel.org/r/pull-1568819401-72461@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
9 months agoMerge tag 'scmi-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep...
Olof Johansson [Sun, 29 Sep 2019 18:19:18 +0000 (11:19 -0700)]
Merge tag 'scmi-fixes-5.4' of git://git./linux/kernel/git/sudeep.holla/linux into arm/fixes

ARM SCMI fixes for v5.4

Couple of fixes: one in scmi reset driver initialising missed scmi handle
and an other in scmi reset API implementation fixing the assignment of
reset state

* tag 'scmi-fixes-5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  reset: reset-scmi: add missing handle initialisation
  firmware: arm_scmi: reset: fix reset_state assignment in scmi_domain_reset

Link: https://lore.kernel.org/r/20190918142139.GA4370@bogus
Signed-off-by: Olof Johansson <olof@lixom.net>
9 months agoMerge tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 29 Sep 2019 17:33:41 +0000 (10:33 -0700)]
Merge tag 'libnvdimm-fixes-5.4-rc1' of git://git./linux/kernel/git/nvdimm/nvdimm

More libnvdimm updates from Dan Williams:

 - Complete the reworks to interoperate with powerpc dynamic huge page
   sizes

 - Fix a crash due to missed accounting for the powerpc 'struct
   page'-memmap mapping granularity

 - Fix badblock initialization for volatile (DRAM emulated) pmem ranges

 - Stop triggering request_key() notifications to userspace when
   NVDIMM-security is disabled / not present

 - Miscellaneous small fixups

* tag 'libnvdimm-fixes-5.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  libnvdimm/region: Enable MAP_SYNC for volatile regions
  libnvdimm: prevent nvdimm from requesting key when security is disabled
  libnvdimm/region: Initialize bad block for volatile namespaces
  libnvdimm/nfit_test: Fix acpi_handle redefinition
  libnvdimm/altmap: Track namespace boundaries in altmap
  libnvdimm: Fix endian conversion issues 
  libnvdimm/dax: Pick the right alignment default when creating dax devices
  powerpc/book3s64: Export has_transparent_hugepage() related functions.