Commit Graph

887540 Commits

Author SHA1 Message Date
Linus Torvalds
60b04df6bf s390 updates for 5.5-rc3
- Fix unwinding from irq context of interrupted user process.
 
 - Add purgatory build missing symbols check. That helped to uncover and
   fix missing symbols when built with kasan support enabled.
 
 - Couple of ftrace fixes. Avoid broken stack trace and fix recursion
   loop in function_graph tracer.
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Merge tag 's390-5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - Fix unwinding from irq context of interrupted user process.

 - Add purgatory build missing symbols check. That helped to uncover and
   fix missing symbols when built with kasan support enabled.

 - Couple of ftrace fixes. Avoid broken stack trace and fix recursion
   loop in function_graph tracer.

* tag 's390-5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/ftrace: save traced function caller
  s390/unwind: stop gracefully at user mode pt_regs in irq stack
  s390/purgatory: do not build purgatory with kcov, kasan and friends
  s390/purgatory: Make sure we fail the build if purgatory has missing symbols
  s390/ftrace: fix endless recursion in function_graph tracer
2019-12-21 12:17:14 -08:00
Linus Torvalds
fd7a6d2b8f Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:
 "Misc fixes: a (rare) PSI crash fix, a CPU affinity related balancing
  fix, and a toning down of active migration attempts"

* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/cfs: fix spurious active migration
  sched/fair: Fix find_idlest_group() to handle CPU affinity
  psi: Fix a division error in psi poll()
  sched/psi: Fix sampling error and rare div0 crashes with cgroups and high uptime
2019-12-21 10:52:10 -08:00
Linus Torvalds
c4ff10efe8 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Misc fixes: a BTS fix, a PT NMI handling fix, a PMU sysfs fix and an
  SRCU annotation"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Add SRCU annotation for pmus list walk
  perf/x86/intel: Fix PT PMI handling
  perf/x86/intel/bts: Fix the use of page_private()
  perf/x86: Fix potential out-of-bounds access
2019-12-21 10:51:00 -08:00
Linus Torvalds
6c1c79a5f4 Kbuild fixes for v5.5
- fix warning in out-of-tree 'make clean'
 
  - add READELF variable to the top Makefile
 
  - fix broken builds when LINUX_COMPILE_BY contains a backslash
 
  - fix build warning in kallsyms
 
  - fix NULL pointer access in expr_eq() in Kconfig
 
  - fix missing dependency on rsync in deb-pkg build
 
  - remove ---help--- from documentation
 
  - fix misleading documentation about directory descending
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Merge tag 'kbuild-fixes-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - fix warning in out-of-tree 'make clean'

 - add READELF variable to the top Makefile

 - fix broken builds when LINUX_COMPILE_BY contains a backslash

 - fix build warning in kallsyms

 - fix NULL pointer access in expr_eq() in Kconfig

 - fix missing dependency on rsync in deb-pkg build

 - remove ---help--- from documentation

 - fix misleading documentation about directory descending

* tag 'kbuild-fixes-v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kbuild: clarify the difference between obj-y and obj-m w.r.t. descending
  kconfig: remove ---help--- from documentation
  scripts: package: mkdebian: add missing rsync dependency
  kconfig: don't crash on NULL expressions in expr_eq()
  scripts/kallsyms: fix offset overflow of kallsyms_relative_base
  mkcompile_h: use printf for LINUX_COMPILE_BY
  mkcompile_h: git rid of UTS_TRUNCATE from LINUX_COMPILE_{BY,HOST}
  x86/boot: kbuild: allow readelf executable to be specified
  kbuild: fix 'No such file or directory' warning when cleaning
2019-12-21 10:49:47 -08:00
Masahiro Yamada
28f94a4429 kbuild: clarify the difference between obj-y and obj-m w.r.t. descending
Kbuild descends into a directory by either 'y' or 'm', but there is an
important difference.

Kbuild combines the built-in objects into built-in.a in each directory.
The built-in.a in the directory visited by obj-y is merged into the
built-in.a in the parent directory. This merge happens recursively
when Kbuild is ascending back towards the top directory, then built-in
objects are linked into vmlinux eventually. This works properly only
when the Makefile specifying obj-y is reachable by the chain of obj-y.

On the other hand, Kbuild does not take built-in.a from the directory
visited by obj-m. This it, all the objects in that directory are
supposed to be modular. If Kbuild descends into a directory by obj-m,
but the Makefile in the sub-directory specifies obj-y, those objects
are just left orphan.

The current statement "Kbuild only uses this information to decide that
it needs to visit the directory" is misleading. Clarify the difference.

Reported-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Johan Hovold <johan@kernel.org>
2019-12-22 00:25:35 +09:00
Linus Torvalds
6210469417 Merge branch 'parisc-5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pul parisc fixes from Helge Deller:
 "Two build error fixes, one for the soft_offline_page() parameter
  change and one for a specific KEXEC/KEXEC_FILE configuration, as well
  as a compiler and a linker warning fix"

* 'parisc-5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix compiler warnings in debug_core.c
  parisc: soft_offline_page() now takes the pfn
  parisc: add missing __init annotation
  parisc: fix compilation when KEXEC=n and KEXEC_FILE=y
2019-12-21 06:49:41 -08:00
Linus Torvalds
62af608b4b xen: branch for v5.5-rc3
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Merge tag 'for-linus-5.5b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "This contains two cleanup patches and a small series for supporting
  reloading the Xen block backend driver"

* tag 'for-linus-5.5b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xen/grant-table: remove multiple BUG_ON on gnttab_interface
  xen-blkback: support dynamic unbind/bind
  xen/interface: re-define FRONT/BACK_RING_ATTACH()
  xenbus: limit when state is forced to closed
  xenbus: move xenbus_dev_shutdown() into frontend code...
  xen/blkfront: Adjust indentation in xlvbd_alloc_gendisk
2019-12-21 06:24:56 -08:00
Linus Torvalds
6d04182dd3 powerpc fixes for 5.5 #4
Two weeks worth of accumulated fixes.
 
 A fix for a performance regression seen on PowerVM LPARs using dedicated CPUs,
 caused by our vcpu_is_preempted() returning true even for idle CPUs.
 
 One of the ultravisor support patches broke KVM on big endian hosts in v5.4.
 
 Our KUAP (Kernel User Access Prevention) code missed allowing access in
 __clear_user(), which could lead to an oops or erroneous SEGV when triggered via
 PTRACE_GETREGSET.
 
 Two fixes for the ocxl driver, an open/remove race, and a memory leak in an
 error path.
 
 A handful of other small fixes.
 
 Thanks to:
   Andrew Donnellan, Christian Zigotzky, Christophe Leroy, Christoph Hellwig,
   Daniel Axtens, David Hildenbrand, Frederic Barrat, Gautham R. Shenoy, Greg
   Kurz, Ihor Pasichnyk, Juri Lelli, Marcus Comstedt, Mike Rapoport, Parth Shah,
   Srikar Dronamraju, Vaidyanathan Srinivasan.
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Merge tag 'powerpc-5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "Two weeks worth of accumulated fixes:

   - A fix for a performance regression seen on PowerVM LPARs using
     dedicated CPUs, caused by our vcpu_is_preempted() returning true
     even for idle CPUs.

   - One of the ultravisor support patches broke KVM on big endian hosts
     in v5.4.

   - Our KUAP (Kernel User Access Prevention) code missed allowing
     access in __clear_user(), which could lead to an oops or erroneous
     SEGV when triggered via PTRACE_GETREGSET.

   - Two fixes for the ocxl driver, an open/remove race, and a memory
     leak in an error path.

   - A handful of other small fixes.

  Thanks to: Andrew Donnellan, Christian Zigotzky, Christophe Leroy,
  Christoph Hellwig, Daniel Axtens, David Hildenbrand, Frederic Barrat,
  Gautham R. Shenoy, Greg Kurz, Ihor Pasichnyk, Juri Lelli, Marcus
  Comstedt, Mike Rapoport, Parth Shah, Srikar Dronamraju, Vaidyanathan
  Srinivasan"

* tag 'powerpc-5.5-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  KVM: PPC: Book3S HV: Fix regression on big endian hosts
  powerpc: Fix __clear_user() with KUAP enabled
  powerpc/pseries/cmm: fix managed page counts when migrating pages between zones
  powerpc/8xx: fix bogus __init on mmu_mapin_ram_chunk()
  ocxl: Fix potential memory leak on context creation
  powerpc/irq: fix stack overflow verification
  powerpc: Ensure that swiotlb buffer is allocated from low memory
  powerpc/shared: Use static key to detect shared processor
  powerpc/vcpu: Assume dedicated processors as non-preempt
  ocxl: Fix concurrent AFU open and device removal
2019-12-21 06:17:05 -08:00
Linus Torvalds
5c741e2583 Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS fixes from Borislav Petkov:
 "Three urgent RAS fixes for the AMD side of things:

   - initialize struct mce.bank so that calculated error severity on AMD
     SMCA machines is correct

   - do not send IPIs early during bank initialization, when interrupts
     are disabled

   - a fix for when only a subset of MCA banks are enabled, which led to
     boot hangs on some new AMD CPUs"

* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Fix possibly incorrect severity calculation on AMD
  x86/MCE/AMD: Allow Reserved types to be overwritten in smca_banks[]
  x86/MCE/AMD: Do not use rdmsr_safe_on_cpu() in smca_configure()
2019-12-21 06:04:12 -08:00
Linus Torvalds
12ac9a08fc One core framework fix to walk the orphan list and match up clks to
parents when clk providers register the DT provider after registering
 all their clks (as they should). Then a handful of driver fixes for the
 qcom, imx, and at91 drivers. The driver fixes are relatively small fixes
 for incorrect register settings or missing locks causing race
 conditions.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "One core framework fix to walk the orphan list and match up clks to
  parents when clk providers register the DT provider after registering
  all their clks (as they should).

  Then a handful of driver fixes for the qcom, imx, and at91 drivers.

  The driver fixes are relatively small fixes for incorrect register
  settings or missing locks causing race conditions"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: qcom: Avoid SMMU/cx gdsc corner cases
  clk: qcom: gcc-sc7180: Fix setting flag for votable GDSCs
  clk: Move clk_core_reparent_orphans() under CONFIG_OF
  clk: at91: fix possible deadlock
  clk: walk orphan list on clock provider registration
  clk: imx: pll14xx: fix clk_pll14xx_wait_lock
  clk: imx: clk-imx7ulp: Add missing sentinel of ulp_div_table
  clk: imx: clk-composite-8m: add lock to gate/mux
2019-12-21 05:55:35 -08:00
Linus Torvalds
f1fd1610cb Devicetree fix for 5.5-rc take 2:
- Add missing 'properties' keyword enclosing 'snps,tso' in snps,dwmac
   binding
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Merge tag 'devicetree-fixes-for-5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull Devicetree fix from Rob Herring:
 "Add missing 'properties' keyword enclosing 'snps,tso' in snps,dwmac
  binding"

* tag 'devicetree-fixes-for-5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  dt-bindings: Add missing 'properties' keyword enclosing 'snps,tso'
2019-12-20 13:48:32 -08:00
Linus Torvalds
3939f2c866 arm64 fixes:
- Leftover put_cpu() in the perf/smmuv3 error path.
 
 - Add Hisilicon TSV110 to spectre-v2 safe list
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Leftover put_cpu() in the perf/smmuv3 error path.

 - Add Hisilicon TSV110 to spectre-v2 safe list

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: cpu_errata: Add Hisilicon TSV110 to spectre-v2 safe list
  perf/smmuv3: Remove the leftover put_cpu() in error path
2019-12-20 13:36:49 -08:00
Linus Torvalds
a7c88728da drm fixes for 5.5-rc3
exynos:
 - component delete fix
 
 i915:
 - Fix to drop an unused and harmful display W/A
 - Fix to define EHL power wells independent of ICL
 - Fix for priority inversion on bonded requests
 - Fix in mmio offset calculation of DSB instance
 - Fix memory leak from get_task_pid when banning clients
 - Fixes to avoid dereference of uninitialized ops in dma_fence tracing
   and keep reference to execbuf object until submitted.
 - vGPU state setting locking fix (Zhenyu)
 - Fix vGPU display dmabuf as read-only (Zhenyu)
 - Properly handle vGPU display dmabuf page pin when rendering (Tina)
 - Fix one guest boot warning to handle guc reset state (Fred)
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Merge tag 'drm-fixes-2019-12-21' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Probably the last one before Christmas, I'll see if there is much
  demand over next few weeks for more fixes, I expect it'll be quiet
  enough.

  This has one exynos fix, and a bunch of i915 core and i915 GVT fixes.

  Summary:

  exynos:
   - component delete fix

  i915:
   - Fix to drop an unused and harmful display W/A
   - Fix to define EHL power wells independent of ICL
   - Fix for priority inversion on bonded requests
   - Fix in mmio offset calculation of DSB instance
   - Fix memory leak from get_task_pid when banning clients
   - Fixes to avoid dereference of uninitialized ops in dma_fence
     tracing and keep reference to execbuf object until submitted.
   - vGPU state setting locking fix (Zhenyu)
   - Fix vGPU display dmabuf as read-only (Zhenyu)
   - Properly handle vGPU display dmabuf page pin when rendering (Tina)
   - Fix one guest boot warning to handle guc reset state (Fred)"

* tag 'drm-fixes-2019-12-21' of git://anongit.freedesktop.org/drm/drm:
  drm/exynos: gsc: add missed component_del
  drm/i915: Fix pid leak with banned clients
  drm/i915/gem: Keep request alive while attaching fences
  drm/i915: Fix WARN_ON condition for cursor plane ddb allocation
  drm/i915/gvt: Fix guest boot warning
  drm/i915/tgl: Drop Wa#1178
  drm/i915/ehl: Define EHL powerwells independently of ICL
  drm/i915: Set fence_work.ops before dma_fence_init
  drm/i915: Copy across scheduler behaviour flags across submit fences
  drm/i915/dsb: Fix in mmio offset calculation of DSB instance
  drm/i915/gvt: Pin vgpu dma address before using
  drm/i915/gvt: set guest display buffer as readonly
  drm/i915/gvt: use vgpu lock for active state setting
2019-12-20 13:33:50 -08:00
Linus Torvalds
f8f04d0859 io_uring-5.5-20191220
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Merge tag 'io_uring-5.5-20191220' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Here's a set of fixes that should go into 5.5-rc3 for io_uring.

  This is bigger than I'd like it to be, mainly because we're fixing the
  case where an application reuses sqe data right after issue. This
  really must work, or it's confusing. With 5.5 we're flagging us as
  submit stable for the actual data, this must also be the case for
  SQEs.

  Honestly, I'd really like to add another series on top of this, since
  it cleans it up considerable and prevents any SQE reuse by design. I
  posted that here:

    https://lore.kernel.org/io-uring/20191220174742.7449-1-axboe@kernel.dk/T/#u

  and may still send it your way early next week once it's been looked
  at and had some more soak time (does pass all regression tests). With
  that series, we've unified the prep+issue handling, and only the prep
  phase even has access to the SQE.

  Anyway, outside of that, fixes in here for a few other issues that
  have been hit in testing or production"

* tag 'io_uring-5.5-20191220' of git://git.kernel.dk/linux-block:
  io_uring: io_wq_submit_work() should not touch req->rw
  io_uring: don't wait when under-submitting
  io_uring: warn about unhandled opcode
  io_uring: read opcode and user_data from SQE exactly once
  io_uring: make IORING_OP_TIMEOUT_REMOVE deferrable
  io_uring: make IORING_OP_CANCEL_ASYNC deferrable
  io_uring: make IORING_POLL_ADD and IORING_POLL_REMOVE deferrable
  io_uring: make HARDLINK imply LINK
  io_uring: any deferred command must have stable sqe data
  io_uring: remove 'sqe' parameter to the OP helpers that take it
  io_uring: fix pre-prepped issue with force_nonblock == true
  io-wq: re-add io_wq_current_is_worker()
  io_uring: fix sporadic -EFAULT from IORING_OP_RECVMSG
  io_uring: fix stale comment and a few typos
2019-12-20 13:30:49 -08:00
Dave Airlie
0c517e6ced Merge tag 'drm-intel-fixes-2019-12-19' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix to drop an unused and harmful display W/A
- Fix to define EHL power wells independent of ICL
- Fix for priority inversion on bonded requests
- Fix in mmio offset calculation of DSB instance
- Fix memory leak from get_task_pid when banning clients
- Fixes to avoid dereference of uninitialized ops in dma_fence tracing
  and keep reference to execbuf object until submitted.

- Includes gvt-fixes-2019-12-18

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191219124635.GA16068@jlahtine-desk.ger.corp.intel.com
2019-12-21 06:08:20 +10:00
Dave Airlie
39b7f58f10 Just one bug fixup
. Make sure to unregister a component for Exynos gscaler driver
   when the driver is removed.
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Merge tag 'exynos-drm-fixes-for-v5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes

Just one bug fixup
. Make sure to unregister a component for Exynos gscaler driver
  when the driver is removed.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1576714013-3788-1-git-send-email-inki.dae@samsung.com
2019-12-21 06:07:42 +10:00
Helge Deller
75cf979700 parisc: Fix compiler warnings in debug_core.c
Fix this compiler warning:
kernel/debug/debug_core.c: In function ‘kgdb_cpu_enter’:
arch/parisc/include/asm/cmpxchg.h:48:3: warning: value computed is not used [-Wunused-value]
   48 |  ((__typeof__(*(ptr)))__xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
arch/parisc/include/asm/atomic.h:78:30: note: in expansion of macro ‘xchg’
   78 | #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
      |                              ^~~~
kernel/debug/debug_core.c:596:4: note: in expansion of macro ‘atomic_xchg’
  596 |    atomic_xchg(&kgdb_active, cpu);
      |    ^~~~~~~~~~~

Signed-off-by: Helge Deller <deller@gmx.de>
2019-12-20 21:01:42 +01:00
Helge Deller
36257d5580 parisc: soft_offline_page() now takes the pfn
Switch page deallocation table (pdt) driver to use pfn instead of a page
pointer in soft_offline_page().

Fixes: feec24a613 ("mm, soft-offline: convert parameter to pfn")
Signed-off-by: Helge Deller <deller@gmx.de>
2019-12-20 19:47:00 +01:00
Linus Torvalds
b371ddb94f IOMMU Fixes for Linux v5.5-rc2
Including:
 
 	- Fix kmemleak warning in IOVA code
 
 	- Fix compile warnings on ARM32/64 in dma-iommu code due to
 	  dma_mask type mismatches
 
 	- Make ISA reserved regions relaxable, so that VFIO can assign
 	  devices which have such regions defined
 
 	- Fix mapping errors resulting in IO page-faults in the VT-d
 	  driver
 
 	- Make sure direct mappings for a domain are created after the
 	  default domain is updated
 
 	- Map ISA reserved regions in the VT-d driver with correct
 	  permissions
 
 	- Remove unneeded check for PSI capability in the IOTLB flush
 	  code of the VT-d driver
 
 	- Lockdep fix iommu_dma_prepare_msi()
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Merge tag 'iommu-fixes-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Fix kmemleak warning in IOVA code

 - Fix compile warnings on ARM32/64 in dma-iommu code due to dma_mask
   type mismatches

 - Make ISA reserved regions relaxable, so that VFIO can assign devices
   which have such regions defined

 - Fix mapping errors resulting in IO page-faults in the VT-d driver

 - Make sure direct mappings for a domain are created after the default
   domain is updated

 - Map ISA reserved regions in the VT-d driver with correct permissions

 - Remove unneeded check for PSI capability in the IOTLB flush code of
   the VT-d driver

 - Lockdep fix iommu_dma_prepare_msi()

* tag 'iommu-fixes-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/dma: Relax locking in iommu_dma_prepare_msi()
  iommu/vt-d: Remove incorrect PSI capability check
  iommu/vt-d: Allocate reserved region for ISA with correct permission
  iommu: set group default domain before creating direct mappings
  iommu/vt-d: Fix dmar pte read access not set error
  iommu/vt-d: Set ISA bridge reserved region as relaxable
  iommu/dma: Rationalise types for DMA masks
  iommu/iova: Init the struct iova to fix the possible memleak
2019-12-20 10:42:25 -08:00
Linus Torvalds
fce34dec76 platform-drivers-x86 for v5.5-2
* Add support of APUv4 and fix an assignment of simswap GPIO.
 * Add Siemens CONNECT X300 to DMI table to avoid stuck during boot.
 * Correct arguments of WMI call on HP Envy x360 15-cp0xxx model.
 * Fix the mlx-bootctl sysfs attributes to be device related.
 
 The following is an automated git shortlog grouped by driver:
 
 hp-wmi:
  -  Make buffer for HPWMI_FEATURE2_QUERY 128 bytes
 
 pcengines-apuv2:
  -  Spelling fixes in the driver
  -  detect apuv4 board
  -  fix simswap GPIO assignment
 
 platform/mellanox:
  -  fix the mlx-bootctl sysfs
 
 pmc_atom:
  -  Add Siemens CONNECT X300 to critclk_systems DMI table
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Merge tag 'platform-drivers-x86-v5.5-2' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver fixes from Andy Shevchenko:
 "Bucket of fixes for PDx86. Note, that there is no ABI breakage in
  Mellanox driver because it has been introduced in v5.5-rc1, so we can
  change it.

  Summary:

   - Add support of APUv4 and fix an assignment of simswap GPIO

   - Add Siemens CONNECT X300 to DMI table to avoid stuck during boot

   - Correct arguments of WMI call on HP Envy x360 15-cp0xxx model

   - Fix the mlx-bootctl sysfs attributes to be device related"

* tag 'platform-drivers-x86-v5.5-2' of git://git.infradead.org/linux-platform-drivers-x86:
  platform/x86: pcengines-apuv2: Spelling fixes in the driver
  platform/x86: pcengines-apuv2: detect apuv4 board
  platform/x86: pcengines-apuv2: fix simswap GPIO assignment
  platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
  platform/x86: hp-wmi: Make buffer for HPWMI_FEATURE2_QUERY 128 bytes
  platform/mellanox: fix the mlx-bootctl sysfs
2019-12-20 10:38:21 -08:00
Linus Torvalds
d2944d5313 MMC host:
- mtk-sd: Fix tuning for MT8173 HS200/HS400 mode
  - sdhci: Revert a fix for incorrect switch to HS mode
  - sdhci-msm: Fixup accesses to the DDR_CONFIG register
  - sdhci-of-esdhc: Revert a bad fix for erratum A-009204
  - sdhci-of-esdhc: Re-implement fix for erratum A-009204
  - sdhci-of-esdhc: Fixup P2020 errata handling
  - sdhci-pci: Disable broken CMDQ on Intel GLK based Lenovo systems
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Merge tag 'mmc-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC host fixes from Ulf Hansson:

 - mtk-sd: Fix tuning for MT8173 HS200/HS400 mode

 - sdhci: Revert a fix for incorrect switch to HS mode

 - sdhci-msm: Fixup accesses to the DDR_CONFIG register

 - sdhci-of-esdhc: Revert a bad fix for erratum A-009204

 - sdhci-of-esdhc: Re-implement fix for erratum A-009204

 - sdhci-of-esdhc: Fixup P2020 errata handling

 - sdhci-pci: Disable broken CMDQ on Intel GLK based Lenovo systems

* tag 'mmc-v5.5-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-of-esdhc: re-implement erratum A-009204 workaround
  mmc: sdhci: Add a quirk for broken command queuing
  mmc: sdhci: Workaround broken command queuing on Intel GLK
  mmc: sdhci-of-esdhc: fix P2020 errata handling
  mmc: sdhci: Update the tuning failed messages to pr_debug level
  mmc: sdhci-of-esdhc: Revert "mmc: sdhci-of-esdhc: add erratum A-009204 support"
  mmc: mediatek: fix CMD_TA to 2 for MT8173 HS200/HS400 mode
  mmc: sdhci-msm: Correct the offset and value for DDR_CONFIG register
  Revert "mmc: sdhci: Fix incorrect switch to HS mode"
2019-12-20 10:36:49 -08:00
Linus Torvalds
6398b9fc81 Char/misc driver fixes for 5.5-rc3
Here are some small char and other driver fixes for 5.5-rc3.
 
 The most noticable one is a much-reported fix for a random driver issue
 that came up from 5.5-rc1 compat_ioctl cleanups.  The others are a chunk
 of habanalab driver fixes and intel_th driver fixes and new device ids.
 
 All have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small char and other driver fixes for 5.5-rc3.

  The most noticable one is a much-reported fix for a random driver
  issue that came up from 5.5-rc1 compat_ioctl cleanups. The others are
  a chunk of habanalab driver fixes and intel_th driver fixes and new
  device ids.

  All have been in linux-next with no reported issues"

* tag 'char-misc-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  random: don't forget compat_ioctl on urandom
  intel_th: msu: Fix window switching without windows
  intel_th: Fix freeing IRQs
  intel_th: pci: Add Elkhart Lake SOC support
  intel_th: pci: Add Comet Lake PCH-V support
  habanalabs: remove variable 'val' set but not used
  habanalabs: rate limit error msg on waiting for CS
2019-12-20 10:11:30 -08:00
Linus Torvalds
107aff96d3 Staging driver fixes for 5.5-rc3
Here are some small staging driver fixes for a number of reported
 issues.
 
 The majority here are some fixes for the wfx driver, but also in here is
 a comedi driver fix found during some code review, and an axis-fifo
 build dependancy issue to resolve some reported testing problems.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging driver fixes from Greg KH:
 "Here are some small staging driver fixes for a number of reported
  issues.

  The majority here are some fixes for the wfx driver, but also in here
  is a comedi driver fix found during some code review, and an axis-fifo
  build dependancy issue to resolve some reported testing problems.

  All of these have been in linux-next with no reported issues"

* tag 'staging-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: wfx: fix wrong error message
  staging: wfx: fix hif_set_mfp() with big endian hosts
  staging: wfx: detect race condition in WEP authentication
  staging: wfx: ensure that retry policy always fallbacks to MCS0 / 1Mbps
  staging: wfx: fix rate control handling
  staging: wfx: firmware does not support more than 32 total retries
  staging: wfx: use boolean appropriately
  staging: wfx: fix counter overflow
  staging: wfx: fix case of lack of tx_retry_policies
  staging: wfx: fix the cache of rate policies on interface reset
  staging: axis-fifo: add unspecified HAS_IOMEM dependency
  staging: comedi: gsc_hpdi: check dma_alloc_coherent() return value
2019-12-20 10:09:21 -08:00
Wei Li
aa638cfe3e arm64: cpu_errata: Add Hisilicon TSV110 to spectre-v2 safe list
HiSilicon Taishan v110 CPUs didn't implement CSV2 field of the
ID_AA64PFR0_EL1, but spectre-v2 is mitigated by hardware, so
whitelist the MIDR in the safe list.

Signed-off-by: Wei Li <liwei391@huawei.com>
[hanjun: re-write the commit log]
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-12-20 17:57:22 +00:00
Linus Torvalds
1a4ee8673a TTY/Serial fixes for 5.5-rc3
Here are some small tty and serial driver fixes for 5.5-rc3.
 
 Only 4 small patches here:
   - atmel serial driver fix
   - msm_serial driver fix
   - sprd serial driver fix
   - tty core port fix
 
 The last tty core fix should resolve a long-standing bug with a race
 at port creation time that some people would see, and Sudip finally
 tracked down.
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial fixes from Greg KH:
 "Here are some small tty and serial driver fixes for 5.5-rc3.

  Only four small patches here:

   - atmel serial driver fix

   - msm_serial driver fix

   - sprd serial driver fix

   - tty core port fix

  The last tty core fix should resolve a long-standing bug with a race
  at port creation time that some people would see, and Sudip finally
  tracked down.

  All of these have been in linux-next with no reported issues"

* tag 'tty-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty/serial: atmel: fix out of range clock divider handling
  tty: link tty and port before configuring it as console
  serial: sprd: Add clearing break interrupt operation
  tty: serial: msm_serial: Fix lockup for sysrq and oops
2019-12-20 09:55:28 -08:00
Linus Torvalds
7181aba146 USB fixes for 5.5-rc3
Here are some small USB fixes for some reported issues.
 
 Included in here are:
   - xhci build warning fix
   - ehci disconnect warning fix
   - usbip lockup fix and error cleanup fix
   - typec build fix
 
 All of these have been in linux-next with no reported issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Greg KH:
 "Here are some small USB fixes for some reported issues.

  Included in here are:

   - xhci build warning fix

   - ehci disconnect warning fix

   - usbip lockup fix and error cleanup fix

   - typec build fix

  All of these have been in linux-next with no reported issues"

* tag 'usb-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: xhci: Fix build warning seen with CONFIG_PM=n
  usbip: Fix error path of vhci_recv_ret_submit()
  usbip: Fix receive error in vhci-hcd when using scatter-gather
  USB: EHCI: Do not return -EPIPE when hub is disconnected
  usb: typec: fusb302: Fix an undefined reference to 'extcon_get_state'
2019-12-20 09:53:24 -08:00
Linus Torvalds
7190a23a58 Pin control fixes for the v5.5 kernel cycle:
- A host of fixes for the Intel baytrail and cherryview:
   properly serialize all register accesses and add the irqchip
   with the gpiochip as we need to, fix some pin lists and
   initialize the hardware in the right order.
 - Fix the Aspeed G6 LPC configuration.
 - Handle a possible NULL pointer exception in the core.
 - Fix the Kconfig dependencies for the Equilibrium driver.
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Merge tag 'pinctrl-v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Sorry that this fixes pull request took a while. Too much christmas
  business going on.

  This contains a few really important Intel fixes and some odd fixes:

   - A host of fixes for the Intel baytrail and cherryview: properly
     serialize all register accesses and add the irqchip with the
     gpiochip as we need to, fix some pin lists and initialize the
     hardware in the right order.

   - Fix the Aspeed G6 LPC configuration.

   - Handle a possible NULL pointer exception in the core.

   - Fix the Kconfig dependencies for the Equilibrium driver"

* tag 'pinctrl-v5.5-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: ingenic: Fixup PIN_CONFIG_OUTPUT config
  pinctrl: Modify Kconfig to fix linker error
  pinctrl: pinmux: fix a possible null pointer in pinmux_can_be_used_for_gpio
  pinctrl: aspeed-g6: Fix LPC/eSPI mux configuration
  pinctrl: cherryview: Pass irqchip when adding gpiochip
  pinctrl: cherryview: Add GPIO <-> pin mapping ranges via callback
  pinctrl: cherryview: Split out irq hw-init into a separate helper function
  pinctrl: baytrail: Pass irqchip when adding gpiochip
  pinctrl: baytrail: Add GPIO <-> pin mapping ranges via callback
  pinctrl: baytrail: Update North Community pin list
  pinctrl: baytrail: Really serialize all register accesses
2019-12-20 09:49:05 -08:00
Andy Shevchenko
02abbda105 platform/x86: pcengines-apuv2: Spelling fixes in the driver
Mainly does:
 - capitalize gpio and bios to GPIO and BIOS
 - capitalize beginning of comments
 - add periods in multi-line comments

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-12-20 19:01:59 +02:00
Enrico Weigelt, metux IT consult
3d00da1de3 platform/x86: pcengines-apuv2: detect apuv4 board
GPIO stuff on APUv4 seems to be the same as on APUv2, so we just
need to match on DMI data.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-12-20 19:01:59 +02:00
Enrico Weigelt, metux IT consult
d4ac8f83da platform/x86: pcengines-apuv2: fix simswap GPIO assignment
The mapping entry has to hold the GPIO line index instead of
controller's register number.

Fixes: 5037d4ddda ("platform/x86: pcengines-apuv2: wire up simswitch gpio as led")
Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-12-20 19:01:59 +02:00
Michael Haener
e8796c6c69 platform/x86: pmc_atom: Add Siemens CONNECT X300 to critclk_systems DMI table
The CONNECT X300 uses the PMC clock for on-board components and gets
stuck during boot if the clock is disabled. Therefore, add this
device to the critical systems list.
Tested on CONNECT X300.

Fixes: 648e921888 ("clk: x86: Stop marking clocks as CLK_IS_CRITICAL")
Signed-off-by: Michael Haener <michael.haener@siemens.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-12-20 19:00:50 +02:00
Hans de Goede
133b2acee3 platform/x86: hp-wmi: Make buffer for HPWMI_FEATURE2_QUERY 128 bytes
At least on the HP Envy x360 15-cp0xxx model the WMI interface
for HPWMI_FEATURE2_QUERY requires an outsize of at least 128 bytes,
otherwise it fails with an error code 5 (HPWMI_RET_INVALID_PARAMETERS):

Dec 06 00:59:38 kernel: hp_wmi: query 0xd returned error 0x5

We do not care about the contents of the buffer, we just want to know
if the HPWMI_FEATURE2_QUERY command is supported.

This commits bumps the buffer size, fixing the error.

Fixes: 8a1513b493 ("hp-wmi: limit hotkey enable")
Cc: stable@vger.kernel.org
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1520703
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-12-20 19:00:50 +02:00
Liming Sun
77dcc95e20 platform/mellanox: fix the mlx-bootctl sysfs
This is a follow-up commit for the sysfs attributes to change
from DRIVER_ATTR to DEVICE_ATTR according to some initial comments.
In such case, it's better to point the sysfs path to the device
itself instead of the driver. The ABI document is also updated.

Fixes: 79e29cb8fb ("platform/mellanox: Add bootctl driver for Mellanox BlueField Soc")
Signed-off-by: Liming Sun <lsun@mellanox.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
2019-12-20 19:00:50 +02:00
Aditya Pakki
d6bd6cf9fe xen/grant-table: remove multiple BUG_ON on gnttab_interface
gnttab_request_version() always sets the gnttab_interface variable
and the assertions to check for empty gnttab_interface is unnecessary.
The patch eliminates multiple such assertions.

Signed-off-by: Aditya Pakki <pakki001@umn.edu>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-12-20 13:54:56 +01:00
Paul Durrant
f4eef1b652 xen-blkback: support dynamic unbind/bind
By simply re-attaching to shared rings during connect_ring() rather than
assuming they are freshly allocated (i.e assuming the counters are zero)
it is possible for vbd instances to be unbound and re-bound from and to
(respectively) a running guest.

This has been tested by running:

while true;
  do fio --name=randwrite --ioengine=libaio --iodepth=16 \
  --rw=randwrite --bs=4k --direct=1 --size=1G --verify=crc32;
  done

in a PV guest whilst running:

while true;
  do echo vbd-$DOMID-$VBD >unbind;
  echo unbound;
  sleep 5;
  echo vbd-$DOMID-$VBD >bind;
  echo bound;
  sleep 3;
  done

in dom0 from /sys/bus/xen-backend/drivers/vbd to continuously unbind and
re-bind its system disk image.

This is a highly useful feature for a backend module as it allows it to be
unloaded and re-loaded (i.e. updated) without requiring domUs to be halted.
This was also tested by running:

while true;
  do echo vbd-$DOMID-$VBD >unbind;
  echo unbound;
  sleep 5;
  rmmod xen-blkback;
  echo unloaded;
  sleep 1;
  modprobe xen-blkback;
  echo bound;
  cd $(pwd);
  sleep 3;
  done

in dom0 whilst running the same loop as above in the (single) PV guest.

Some (less stressful) testing has also been done using a Windows HVM guest
with the latest 9.0 PV drivers installed.

Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-12-20 13:44:45 +01:00
Paul Durrant
1ee54195a3 xen/interface: re-define FRONT/BACK_RING_ATTACH()
Currently these macros are defined to re-initialize a front/back ring
(respectively) to values read from the shared ring in such a way that any
requests/responses that are added to the shared ring whilst the front/back
is detached will be skipped over. This, in general, is not a desirable
semantic since most frontend implementations will eventually block waiting
for a response which would either never appear or never be processed.

Since the macros are currently unused, take this opportunity to re-define
them to re-initialize a front/back ring using specified values. This also
allows FRONT/BACK_RING_INIT() to be re-defined in terms of
FRONT/BACK_RING_ATTACH() using a specified value of 0.

NOTE: BACK_RING_ATTACH() will be used directly in a subsequent patch.

Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-12-20 13:44:42 +01:00
Paul Durrant
672b7763cb xenbus: limit when state is forced to closed
If a driver probe() fails then leave the xenstore state alone. There is no
reason to modify it as the failure may be due to transient resource
allocation issues and hence a subsequent probe() may succeed.

If the driver supports re-binding then only force state to closed during
remove() only in the case when the toolstack may need to clean up. This can
be detected by checking whether the state in xenstore has been set to
closing prior to device removal.

NOTE: Re-bind support is indicated by new boolean in struct xenbus_driver,
      which defaults to false. Subsequent patches will add support to
      some backend drivers.

Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-12-20 13:44:38 +01:00
Paul Durrant
c534374ecf xenbus: move xenbus_dev_shutdown() into frontend code...
...and make it static

xenbus_dev_shutdown() is seemingly intended to cause clean shutdown of PV
frontends when a guest is rebooted. Indeed the function waits for a
conpletion which is only set by a call to xenbus_frontend_closed().

This patch removes the shutdown() method from backends and moves
xenbus_dev_shutdown() from xenbus_probe.c into xenbus_probe_frontend.c,
renaming it appropriately and making it static.

NOTE: In the case where the backend is running in a driver domain, the
      toolstack should have already terminated any frontends that may be
      using it (since Xen does not support re-startable PV driver domains)
      so xenbus_dev_shutdown() should never be called.

Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-12-20 13:44:35 +01:00
Nathan Chancellor
589b72894f xen/blkfront: Adjust indentation in xlvbd_alloc_gendisk
Clang warns:

../drivers/block/xen-blkfront.c:1117:4: warning: misleading indentation;
statement is not part of the previous 'if' [-Wmisleading-indentation]
                nr_parts = PARTS_PER_DISK;
                ^
../drivers/block/xen-blkfront.c:1115:3: note: previous statement is here
                if (err)
                ^

This is because there is a space at the beginning of this line; remove
it so that the indentation is consistent according to the Linux kernel
coding style and clang no longer warns.

While we are here, the previous line has some trailing whitespace; clean
that up as well.

Fixes: c80a420995 ("xen-blkfront: handle Xen major numbers other than XENVBD")
Link: https://github.com/ClangBuiltLinux/linux/issues/791
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-12-20 13:38:13 +01:00
Linus Torvalds
7e0165b2f1 Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton:
 "6 fixes"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
  lib/Kconfig.debug: fix some messed up configurations
  mm: vmscan: protect shrinker idr replace with CONFIG_MEMCG
  kasan: don't assume percpu shadow allocations will succeed
  kasan: use apply_to_existing_page_range() for releasing vmalloc shadow
  mm/memory.c: add apply_to_existing_page_range() helper
  kasan: fix crashes on access to memory mapped by vm_map_ram()
2019-12-19 08:13:04 -08:00
Linus Torvalds
5f096c0ecd Power management fix for 5.5-rc3
Fix a problem related to CPU offline/online and cpufreq governors
 that in some system configurations may lead to a system-wide
 deadlock during CPU online.
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Merge tag 'pm-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management fix from Rafael Wysocki:
 "Fix a problem related to CPU offline/online and cpufreq governors that
  in some system configurations may lead to a system-wide deadlock
  during CPU online"

* tag 'pm-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: Avoid leaving stale IRQ work items during CPU offline
2019-12-19 08:09:43 -08:00
Rafael J. Wysocki
505b308b69 Merge branch 'pm-cpufreq'
* pm-cpufreq:
  cpufreq: Avoid leaving stale IRQ work items during CPU offline
2019-12-19 16:10:52 +01:00
Yangbo Lu
f667216c5c mmc: sdhci-of-esdhc: re-implement erratum A-009204 workaround
The erratum A-009204 workaround patch was reverted because of
incorrect implementation.

8b6dc6b mmc: sdhci-of-esdhc: Revert "mmc: sdhci-of-esdhc: add
        erratum A-009204 support"

This patch is to re-implement the workaround (add a 5 ms delay
before setting SYSCTL[RSTD] to make sure all the DMA transfers
are finished).

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Link: https://lore.kernel.org/r/20191219032335.26528-1-yangbo.lu@nxp.com
Fixes: 5dd1955225 ("mmc: sdhci-of-esdhc: add erratum A-009204 support")
Cc: stable@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2019-12-19 08:13:43 +01:00
Jeffrey Hugo
781d8cea68 clk: qcom: Avoid SMMU/cx gdsc corner cases
Mark the msm8998 cpu CX gdsc as votable and use the hw control to avoid
corner cases with SMMU per hardware documentation.

Fixes: 3f7df5baa2 ("clk: qcom: Add MSM8998 GPU Clock Controller (GPUCC) driver")
Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Link: https://lkml.kernel.org/r/20191217171905.5619-1-jeffrey.l.hugo@gmail.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-12-18 22:02:27 -08:00
Matthias Kaehlcke
8d20c39f06 clk: qcom: gcc-sc7180: Fix setting flag for votable GDSCs
Commit 17269568f7 ("clk: qcom: Add Global Clock controller (GCC)
driver for SC7180") sets the VOTABLE flag in .pwrsts, but it needs
to be set in .flags, fix this.

Fixes: 17269568f7 ("clk: qcom: Add Global Clock controller (GCC) driver for SC7180")
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lkml.kernel.org/r/20191204120341.1.I9971817e83ee890d1096c43c5a6ce6ced53d5bd3@changeid
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-12-18 21:35:58 -08:00
Linus Torvalds
4a94c43323 tpmdd fixes for Linux v5.5-rc3
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Merge tag 'tpmdd-next-20191219' of git://git.infradead.org/users/jjs/linux-tpmdd

Pull tpm fixes from Jarkko Sakkinen:
 "Bunch of fixes for rc3"

* tag 'tpmdd-next-20191219' of git://git.infradead.org/users/jjs/linux-tpmdd:
  tpm/tpm_ftpm_tee: add shutdown call back
  tpm: selftest: cleanup after unseal with wrong auth/policy test
  tpm: selftest: add test covering async mode
  tpm: fix invalid locking in NONBLOCKING mode
  security: keys: trusted: fix lost handle flush
  tpm_tis: reserve chip for duration of tpm_tis_core_init
  KEYS: asymmetric: return ENOMEM if akcipher_request_alloc() fails
  KEYS: remove CONFIG_KEYS_COMPAT
2019-12-18 17:17:36 -08:00
Pavel Tatashin
1760eb689e tpm/tpm_ftpm_tee: add shutdown call back
Add shutdown call back to close existing session with fTPM TA
to support kexec scenario.

Add parentheses to function names in comments as specified in kdoc.

Signed-off-by: Thirupathaiah Annapureddy <thiruan@microsoft.com>
Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
2019-12-19 02:31:28 +02:00
Chuhong Yuan
84c92365b2 drm/exynos: gsc: add missed component_del
The driver forgets to call component_del in remove to match component_add
in probe.
Add the missed call to fix it.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Signed-off-by: Inki Dae <inki.dae@samsung.net>
2019-12-19 08:52:42 +09:00
Vasily Gorbik
b4adfe5591 s390/ftrace: save traced function caller
A typical backtrace acquired from ftraced function currently looks like
the following (e.g. for "path_openat"):

arch_stack_walk+0x15c/0x2d8
stack_trace_save+0x50/0x68
stack_trace_call+0x15a/0x3b8
ftrace_graph_caller+0x0/0x1c
0x3e0007e3c98 <- ftraced function caller (should be do_filp_open+0x7c/0xe8)
do_open_execat+0x70/0x1b8
__do_execve_file.isra.0+0x7d8/0x860
__s390x_sys_execve+0x56/0x68
system_call+0xdc/0x2d8

Note random "0x3e0007e3c98" stack value as ftraced function caller. This
value causes either imprecise unwinder result or unwinding failure.
That "0x3e0007e3c98" comes from r14 of ftraced function stack frame, which
it haven't had a chance to initialize since the very first instruction
calls ftrace code ("ftrace_caller"). (ftraced function might never
save r14 as well). Nevertheless according to s390 ABI any function
is called with stack frame allocated for it and r14 contains return
address. "ftrace_caller" itself is called with "brasl %r0,ftrace_caller".
So, to fix this issue simply always save traced function caller onto
ftraced function stack frame.

Reported-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-12-18 23:29:26 +01:00
Vasily Gorbik
eef06cbf67 s390/unwind: stop gracefully at user mode pt_regs in irq stack
Consider reaching user mode pt_regs at the bottom of irq stack graceful
unwinder termination. This is the case when irq/mcck/ext interrupt arrives
while in user mode.

Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-12-18 23:29:26 +01:00