Commit Graph

812038 Commits

Author SHA1 Message Date
Clint Taylor
9659c1af45 drm/i915/icl: combo port vswing programming changes per BSPEC
In August 2018 the BSPEC changed the ICL port programming sequence to
closely resemble earlier gen programming sequence. Restrict combo phy to
HBR max rate unless eDP panel is connected to port.

v2: remove debug code that Imre found
v3: simplify translation table if-else
v4: edp translation table now based on link rate and low_swing
v5: Misc review comments + r-b
BSpec: 21257
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Clint Taylor <clinton.a.taylor@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1545084827-5776-1-git-send-email-clinton.a.taylor@intel.com
(cherry picked from commit b265a2a625)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2019-02-11 18:35:08 +02:00
Linus Torvalds
d13937116f Linux 5.0-rc6 2019-02-10 14:42:20 -08:00
Linus Torvalds
68d94a8424 dmaengine-fix-5.0-rc6
dmaengine fixes for v5.0-rc6
 
  - Fix in at_xdmac fr wrongful channel state
  - Fix for imx driver for wrong callback invocation
  - Fix to bcm driver for interrupt race & transaction abort.
  - Fix in dmatest to abort in mapping error
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcYD8SAAoJEHwUBw8lI4NHqc0P/At5/XRhS60fnsibTEnGH3ee
 I3TQY3DrGXHXUAq8LqVIjaql7NUQ+I07bRtP6JMX9GYrTguUVVDPau6E4CtWt571
 +TnKXQefgY/UlP9f5K127Dal5YNaYsBZqbEvhE2xgYKrsFStiIYDFIPGFeIE841E
 J0cm8mjM+dQxZOXCCf/vSxA9h2Aqj7Fa4RRY3Sj4r/CWahaKpZt+OM6bdDpmUxmq
 PzDLSE4DdHLWZSTcvAFQQtwlMc4Dq8a7cs2MmCvLC2jwGq0IgLr0bfzj6pZOqcuN
 O05TNcyhQHZ5YRnBHTgJUSgR2abhKuNnBWN/pA1Tbsn7+OISsvt4erjITAFv6fwR
 mkWgyAzH3tZ1PnO1YO43KEfy/nrT6Veg1xePTzWaaYAsPJ9FJeQJuZ5YxPysOLcn
 lux2/B19HeWVb02vredn5eUXH7b8C0WQhfEax4hgbbPcaDX+y3WFN0n2gxOAFQ8H
 xloKu511Iuu0Uteov4wys6LucqX61vPPank9Ma2N7RLdZ4x2Ya8gDjG/kfQOFHDa
 jRbbjzw8Q5tuU2++GXwSpWq55LOKYnaXQbUIRWxrrdwAJahKAQFW++KR2ehB1kvS
 pCaIWwpSHXmCbat/A1JfcYMagAtw6QSgbJlNwru1B7OYujFMLml+GXtqeA/kJ8yo
 3+oF8PB0xA+++o83USaa
 =NTGY
 -----END PGP SIGNATURE-----

Merge tag 'dmaengine-fix-5.0-rc6' of git://git.infradead.org/users/vkoul/slave-dma

Pull dmaengine fixes from Vinod Koul:
 - Fix in at_xdmac fr wrongful channel state
 - Fix for imx driver for wrong callback invocation
 - Fix to bcm driver for interrupt race & transaction abort.
 - Fix in dmatest to abort in mapping error

* tag 'dmaengine-fix-5.0-rc6' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: dmatest: Abort test in case of mapping error
  dmaengine: bcm2835: Fix abort of transactions
  dmaengine: bcm2835: Fix interrupt race on RT
  dmaengine: imx-dma: fix wrong callback invoke
  dmaengine: at_xdmac: Fix wrongfull report of a channel as in use
2019-02-10 10:39:37 -08:00
Linus Torvalds
aadaa80611 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "A handful of fixes:

   - Fix an MCE corner case bug/crash found via MCE injection testing

   - Fix 5-level paging boot crash

   - Fix MCE recovery cache invalidation bug

   - Fix regression on Xen guests caused by a recent PMD level mremap
     speedup optimization"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Make set_pmd_at() paravirt aware
  x86/mm/cpa: Fix set_mce_nospec()
  x86/boot/compressed/64: Do not corrupt EDX on EFER.LME=1 setting
  x86/MCE: Initialize mce.bank in the case of a fatal error in mce_no_way_out()
2019-02-10 09:57:42 -08:00
Linus Torvalds
73a4c52184 Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
 "irqchip driver fixes: most of them are race fixes for ARM GIC (General
  Interrupt Controller) variants, but also a fix for the ARM MMP
  (Marvell PXA168 et al) irqchip affecting OLPC keyboards"

* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3-its: Fix ITT_entry_size accessor
  irqchip/mmp: Only touch the PJ4 IRQ & FIQ bits on enable/disable
  irqchip/gic-v3-its: Gracefully fail on LPI exhaustion
  irqchip/gic-v3-its: Plug allocation race for devices sharing a DevID
  irqchip/gic-v4: Fix occasional VLPI drop
2019-02-10 09:54:19 -08:00
Linus Torvalds
212146f080 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "A couple of kernel side fixes:

   - Fix the Intel uncore driver on certain hardware configurations

   - Fix a CPU hotplug related memory allocation bug

   - Remove a spurious WARN()

  ... plus also a handful of perf tooling fixes"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf script python: Add Python3 support to tests/attr.py
  perf trace: Support multiple "vfs_getname" probes
  perf symbols: Filter out hidden symbols from labels
  perf symbols: Add fallback definitions for GELF_ST_VISIBILITY()
  tools headers uapi: Sync linux/in.h copy from the kernel sources
  perf clang: Do not use 'return std::move(something)'
  perf mem/c2c: Fix perf_mem_events to support powerpc
  perf tests evsel-tp-sched: Fix bitwise operator
  perf/core: Don't WARN() for impossible ring-buffer sizes
  perf/x86/intel: Delay memory deallocation until x86_pmu_dead_cpu()
  perf/x86/intel/uncore: Add Node ID mask
2019-02-10 09:48:18 -08:00
Linus Torvalds
d2a6aae99f Merge branch 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Ingo Molnar:
 "An rtmutex (PI-futex) deadlock scenario fix, plus a locking
  documentation fix"

* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  futex: Handle early deadlock return correctly
  futex: Fix barrier comment
2019-02-10 09:44:52 -08:00
Juergen Gross
20e55bc17d x86/mm: Make set_pmd_at() paravirt aware
set_pmd_at() calls native_set_pmd() unconditionally on x86. This was
fine as long as only huge page entries were written via set_pmd_at(),
as Xen pv guests don't support those.

Commit 2c91bd4a4e ("mm: speed up mremap by 20x on large regions")
introduced a usage of set_pmd_at() possible on pv guests, leading to
failures like:

BUG: unable to handle kernel paging request at ffff888023e26778
#PF error: [PROT] [WRITE]
RIP: e030:move_page_tables+0x7c1/0xae0
move_vma.isra.3+0xd1/0x2d0
__se_sys_mremap+0x3c6/0x5b0
 do_syscall_64+0x49/0x100
entry_SYSCALL_64_after_hwframe+0x44/0xa9

Make set_pmd_at() paravirt aware by just letting it use set_pmd().

Fixes: 2c91bd4a4e ("mm: speed up mremap by 20x on large regions")
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: xen-devel@lists.xenproject.org
Cc: boris.ostrovsky@oracle.com
Cc: sstabellini@kernel.org
Cc: hpa@zytor.com
Cc: bp@alien8.de
Cc: torvalds@linux-foundation.org
Link: https://lkml.kernel.org/r/20190210074056.11842-1-jgross@suse.com
2019-02-10 08:47:12 +01:00
Linus Torvalds
df3865f8f5 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "One PM related driver bugfix and a MAINTAINERS update"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  MAINTAINERS: Update the ocores i2c bus driver maintainer, etc
  i2c: omap: Use noirq system sleep pm ops to idle device for suspend
2019-02-09 13:43:12 -08:00
Linus Torvalds
e8b50608f6 A batch of MIPS fixes for 5.0, nothing too scary.
- A workaround for a Loongson 3 CPU bug is the biggest change, but
    still fairly straightforward. It adds extra memory barriers (sync
    instructions) around atomics to avoid a CPU bug that can break
    atomicity.
 
  - Loongson64 also sees a fix for powering off some systems which would
    incorrectly reboot rather than waiting for the power down sequence to
    complete.
 
  - We have DT fixes for the Ingenic JZ4740 SoC & the JZ4780-based Ci20
    board, and a DT warning fix for the Nexsys4/MIPSfpga board.
 
  - The Cavium Octeon platform sees a further fix to the behaviour of the
    pcie_disable command line argument that was introduced in v3.3.
 
  - The VDSO, introduced in v4.4, sees build fixes for configurations of
    GCC that were built using the --with-fp-32= flag to specify a default
    32-bit floating point ABI.
 
  - get_frame_info() sees a fix for configurations with
    CONFIG_KALLSYMS=n, for which it previously always returned an error.
 
  - If the MIPS Coherence Manager (CM) reports an error then we'll now
    clear that error correctly so that the GCR_ERROR_CAUSE register will
    be updated with information about any future errors.
 -----BEGIN PGP SIGNATURE-----
 
 iIsEABYIADMWIQRgLjeFAZEXQzy86/s+p5+stXUA3QUCXF8rDhUccGF1bC5idXJ0
 b25AbWlwcy5jb20ACgkQPqefrLV1AN0PngEAyEGqu+OyUjLGZApcM49LDMcr5RHq
 V6ED2HApfNbxsAYBAN+Uv6fm4H1LAbU+sIoHUp7DGQ1f1oFsbij4V/bqP4IA
 =nv8r
 -----END PGP SIGNATURE-----

Merge tag 'mips_fixes_5.0_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux

Pull MIPS fixes from Paul Burton:
 "A batch of MIPS fixes for 5.0, nothing too scary.

   - A workaround for a Loongson 3 CPU bug is the biggest change, but
     still fairly straightforward. It adds extra memory barriers (sync
     instructions) around atomics to avoid a CPU bug that can break
     atomicity.

   - Loongson64 also sees a fix for powering off some systems which
     would incorrectly reboot rather than waiting for the power down
     sequence to complete.

   - We have DT fixes for the Ingenic JZ4740 SoC & the JZ4780-based Ci20
     board, and a DT warning fix for the Nexsys4/MIPSfpga board.

   - The Cavium Octeon platform sees a further fix to the behaviour of
     the pcie_disable command line argument that was introduced in v3.3.

   - The VDSO, introduced in v4.4, sees build fixes for configurations
     of GCC that were built using the --with-fp-32= flag to specify a
     default 32-bit floating point ABI.

   - get_frame_info() sees a fix for configurations with
     CONFIG_KALLSYMS=n, for which it previously always returned an
     error.

   - If the MIPS Coherence Manager (CM) reports an error then we'll now
     clear that error correctly so that the GCR_ERROR_CAUSE register
     will be updated with information about any future errors"

* tag 'mips_fixes_5.0_3' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: cm: reprime error cause
  mips: loongson64: remove unreachable(), fix loongson_poweroff().
  MIPS: Remove function size check in get_frame_info()
  MIPS: Use lower case for addresses in nexys4ddr.dts
  MIPS: Loongson: Introduce and use loongson_llsc_mb()
  MIPS: VDSO: Include $(ccflags-vdso) in o32,n32 .lds builds
  MIPS: VDSO: Use same -m%-float cflag as the kernel proper
  MIPS: OCTEON: don't set octeon_dma_bar_type if PCI is disabled
  DTS: CI20: Fix bugs in ci20's device tree.
  MIPS: DTS: jz4740: Correct interrupt number of DMA core
2019-02-09 12:41:14 -08:00
Linus Torvalds
e5a8a11632 for-linus-20190209
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAlxfARoQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpjsgEACP8vQzbvsOZOxHKi9Vcd8ziwyjyBebNh4F
 cKOx2Blgv0ReVAqLOVp9VJOJQoVQumV1btaA2YrmevxnCMpNUBpbP6G02tAqe9Z+
 D75FSpZXy4UvcMSlhfc/iB/RMI06benI9LnuL7zbzIQtrbtu+OFRnO6fpQOVGLxT
 Qa1wt/Rgahc48L4aHnIgPn0nyBRsEvuhC6FjI2D8akDaNiaHzwtGbpx7yDdmLNml
 fCzC2uSRJ31bXsO/5/fJorinaJ56r5N8aHaINYwXDv8zd8i94nQZhITAasXub1Km
 0nyuAg/fSzIdkrGmPINTKFaGYsOfRwpS4C4vagreBhzjfolPY0z9sQEQ63gZzDrd
 mAjHPxLTd165OLlR/RxoMC8AjZCZ0/YQaucxUOPkaIHfth5/dy5BFaCkWyA/I7/Z
 VnAyq0SqeL4hgIOGxZM0HeehKx+palNdJNZTcY7vF/7MVPuh5WM6z/FWsFa8k+ss
 B9YN4wchh7I8EVbLmfz9s/eqabRWF3Agh1dE+yAKwt1KIWHaMXWZTRQnj/69fs2e
 s3pwVMiiSz6K/Xnoe12nmQ4K0XeyKNROO78IIGY/Oa0Pe/hzCAaJMRMDsLp5EcJj
 dxpoi1OfGHMGoqYhL6tx6Atq5f6CMDrS28k/D44DHfO7T1qQGVy1A9SY7ZCfM5+c
 HKxTuRh8mg==
 =tuL6
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-20190209' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe pull request from Christoph, fixing namespace locking when
   dealing with the effects log, and a rapid add/remove issue (Keith)

 - blktrace tweak, ensuring requests with -1 sectors are shown (Jan)

 - link power management quirk for a Smasung SSD (Hans)

 - m68k nfblock dynamic major number fix (Chengguang)

 - series fixing blk-iolatency inflight counter issue (Liu)

 - ensure that we clear ->private when setting up the aio kiocb (Mike)

 - __find_get_block_slow() rate limit print (Tetsuo)

* tag 'for-linus-20190209' of git://git.kernel.dk/linux-block:
  blk-mq: remove duplicated definition of blk_mq_freeze_queue
  Blk-iolatency: warn on negative inflight IO counter
  blk-iolatency: fix IO hang due to negative inflight counter
  blktrace: Show requests without sector
  fs: ratelimit __find_get_block_slow() failure message.
  m68k: set proper major_num when specifying module param major_num
  libata: Add NOLPM quirk for SAMSUNG MZ7TE512HMHP-000L1 SSD
  nvme-pci: fix rapid add remove sequence
  nvme: lock NS list changes while handling command effects
  aio: initialize kiocb private in case any filesystems expect it.
2019-02-09 10:26:09 -08:00
Linus Torvalds
5610789ad0 - Fix a problem with the imx28 ECC engine
- Remove a debug trace introduced in 2b6f0090a3 ("mtd: Check
   add_mtd_device() ret code")
 - Make sure partitions of size 0 can be registered
 - Fix kernel-doc warning in the rawnand core
 - Fix the error path of spinand_init() (missing manufacturer cleanup
   in a few places)
 - Address a problem with the SPI NAND PROGRAM LOAD operation which
   does not work as expected on some parts.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcXqZKAAoJEGXtNgF+CLcA01sQAJSSf/dnaie76vt9icUezM7b
 ulHdnGJEDazEYj5aIbFbT8S8TMpPA8FRR1zOsW1DbNA+khw82p8n2wykFzl2IYHh
 /qWzWcNGhr/s1tTwdS4lpR+lOyKJ3izk+AkL/vYwK1XlHu8uR+1/uazEiE/qNSKO
 grq+jIy5z5n8iVyhd6vjKumbkmWQlueTLVLGWyQeFIlSxYXyig1x3xhcvCcSBmGL
 +LpO+vB8T7G60nOAN5MTM0SDEoeg3R6clKeWWbVfZ5tkFoD8SvXagn3fYHIA6lDA
 pqGWUk6/HmUxec3DxLYZqfoaqi9b3u182H5sY6gOKApPF0HiBGJslo/tiplfnZVe
 3cKm2Mf+LJ4fkqdmCT/UcSm6GuP19CF0rSWPW9Xdq2jgOr5RJ5FlUWAucqM0QPmp
 q3LfQIiwegHh0PQ2dRPAFG1J6btnCxX+pnitNwskbU9XbnDvpPWnaUHcg/qXwhTt
 nImdqBr401d+bv9NgiPSgTQPltmSPZ1t+SI8AE6G1tdzarB2KQ0tOQL+CCMftGZ0
 /+eEY1+U05JrWzJhn7VnqszkNy9kvcszWqVkxomw+ZWQiiN7Nboaadzh/TJ8Sxog
 lOg3EGU3BWBSG3gD/G6v4DuuK9RpKuIzxBP/7ROJJsJRM9N+I4iI1babPdTVbUc0
 MX70tM0a9R5/y0EscaK0
 =QL6/
 -----END PGP SIGNATURE-----

Merge tag 'mtd/fixes-for-5.0-rc6' of git://git.infradead.org/linux-mtd

Pull mtd fixes from Boris Brezillon:

 - Fix a problem with the imx28 ECC engine

 - Remove a debug trace introduced in 2b6f0090a3 ("mtd: Check
   add_mtd_device() ret code")

 - Make sure partitions of size 0 can be registered

 - Fix kernel-doc warning in the rawnand core

 - Fix the error path of spinand_init() (missing manufacturer cleanup in
   a few places)

 - Address a problem with the SPI NAND PROGRAM LOAD operation which does
   not work as expected on some parts.

* tag 'mtd/fixes-for-5.0-rc6' of git://git.infradead.org/linux-mtd:
  mtd: rawnand: gpmi: fix MX28 bus master lockup problem
  mtd: Make sure mtd->erasesize is valid even if the partition is of size 0
  mtd: Remove a debug trace in mtdpart.c
  mtd: rawnand: fix kernel-doc warnings
  mtd: spinand: Fix the error/cleanup path in spinand_init()
  mtd: spinand: Handle the case where PROGRAM LOAD does not reset the cache
2019-02-09 10:17:01 -08:00
Linus Torvalds
3e5e692fcd xen: fixes for 5.0-rc6
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCXF7kVAAKCRCAXGG7T9hj
 vqnqAP9eokv+M7IIhKMyOPg9L1H8pspaFvtvI3VDckJOv1yCqQD/VFi0aITkGdMU
 0W7LCawec41dRwCMQ2bg6XB16ArfLww=
 =Stew
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:
 "Two very minor fixes: one remove of a #include for an unused header
  and a fix of the xen ML address in MAINTAINERS"

* tag 'for-linus-5.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  MAINTAINERS: unify reference to xen-devel list
  arch/arm/xen: Remove duplicate header
2019-02-09 09:44:08 -08:00
Ingo Molnar
3bb2600657 perf/urgent fixes:
perf trace:
 
   Arnaldo Carvalho de Melo:
 
     Fix handling of probe:vfs_getname when the probed routine is
     inlined in multiple places, fixing the collection of the 'filename'
     parameter in open syscalls.
 
 perf test:
 
   Gustavo A. R. Silva:
 
     Fix bitwise operator usage in evsel-tp-sched test, which made tat
     test always detect fields as signed.
 
   Jiri Olsa:
 
     Filter out hidden symbols from labels, added in systems where the
     annobin plugin is used, such as RHEL8, which, if left in place make
     the DWARF unwind 'perf test' to fail on PPC.
 
   Tony Jones:
 
     Fix 'perf_event_attr' tests when building with python3.
 
 perf mem/c2c:
 
   Ravi Bangoria:
 
     Fix perf_mem_events on PowerPC.
 
 tools headers UAPI:
 
   Arnaldo Carvalho de Melo:
 
     Sync linux/in.h copy from the kernel sources, silencing a perf build warning.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCXFml/gAKCRCyPKLppCJ+
 J5OJAP9PsD/IdlOmp5qpxgFB8JywLt6fpMLHndgGZYQIQDeNOQEA3fZTrXP30vlD
 lSOjEnzFT9c9i+57ugYuEmhd7uYrcgw=
 =n0xs
 -----END PGP SIGNATURE-----

Merge tag 'perf-urgent-for-mingo-5.0-20190205' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/urgent fixes from Arnaldo Carvalho de Melo:

perf trace:

  Arnaldo Carvalho de Melo:

    Fix handling of probe:vfs_getname when the probed routine is
    inlined in multiple places, fixing the collection of the 'filename'
    parameter in open syscalls.

perf test:

  Gustavo A. R. Silva:

    Fix bitwise operator usage in evsel-tp-sched test, which made tat
    test always detect fields as signed.

  Jiri Olsa:

    Filter out hidden symbols from labels, added in systems where the
    annobin plugin is used, such as RHEL8, which, if left in place make
    the DWARF unwind 'perf test' to fail on PPC.

  Tony Jones:

    Fix 'perf_event_attr' tests when building with python3.

perf mem/c2c:

  Ravi Bangoria:

    Fix perf_mem_events on PowerPC.

tools headers UAPI:

  Arnaldo Carvalho de Melo:

    Sync linux/in.h copy from the kernel sources, silencing a perf build warning.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-02-09 13:13:45 +01:00
Linus Torvalds
46c291e277 ARM: SoC fixes for linux-5.0
This is a bit larger than normal, as we had not managed to send out
 a pull request before traveling for a week without my signing key.
 
 There are multiple code fixes for older bugs, all of which should
 get backported into stable kernels:
 
 - tango: one fix for multiplatform configurations broken on other
   platforms when tango is enabled
 - arm_scmi: device unregistration fix
 - iop32x: fix kernel oops from extraneous __init annotation
 - pxa: remove a double kfree
 - fsl qbman: close an interrupt clearing race
 
 The rest is the usual collection of smaller fixes for device tree
 files, on the renesas, allwinner, meson, omap, davinci, qualcomm
 and imx platforms. Some of these are for compile-time warnings,
 most are for board specific functionality that fails to work
 because of incorrect settings.
 
 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJcXg9kAAoJEGCrR//JCVInM/UP/1ikwMujrB33oT41l21KFvlw
 yrP3ji9Cyr6Ag8WCtgFYDXWw6uNW1eFYov8E4y8UKc16TSWWSvGmmIFM5K3OOtLe
 qAJrXTXCTBV2lGiWLIMlYQLAFav7H2CBgMLkRVLek1q7s6rV+hqV5hxfcAs6l2w7
 G5Qe8pwuGuZ2qINTs7OdLizd+JAmMeIuPQHGhrZnEupiy+44hHgbrIacXPhwX4Ff
 s5MwGON4H3pL1PtVIXlWo5nQwHyF+mkbSzn1RwmKpsQ4wK0vP3LgUURlvc945JNo
 zA5C/eCO6xFv7LCvBsuw515eEfI74K/9PDPr7txDz8TePjusPMv5zrYkb+jUhFhm
 dELhd8dmh50chXXgHVggRbIjYCpOJeVqm9aeYVvHyKOTNmVohGDc06To/0hFHljw
 1kgX4r2hUduTex0wwFks22TfcXr/cQzarXqyV6lRP5K/4IoU8MJCp4QLYXQK7HYY
 K9644aSaCTRGfRMbvVXYeykRgilEWT1wG8oREAH+PTWNIb47rqi/ByXitIrLkIWh
 Lnefj6bB863E0lPson03sBksylDRaluSeT5lVyjHzJsHwVLt2haqtaI892SZhUy1
 /oR60CMkGuRhmwi4ASCCbr20E+sa/LDNUVC6+d/xs9+Bc/54GEKxS11ffthMUoO0
 3EpgCZDHno+PMSIRkzPN
 =koHS
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-fixes-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "This is a bit larger than normal, as we had not managed to send out a
  pull request before traveling for a week without my signing key.

  There are multiple code fixes for older bugs, all of which should get
  backported into stable kernels:

   - tango: one fix for multiplatform configurations broken on other
     platforms when tango is enabled

   - arm_scmi: device unregistration fix

   - iop32x: fix kernel oops from extraneous __init annotation

   - pxa: remove a double kfree

   - fsl qbman: close an interrupt clearing race

  The rest is the usual collection of smaller fixes for device tree
  files, on the renesas, allwinner, meson, omap, davinci, qualcomm and
  imx platforms.

  Some of these are for compile-time warnings, most are for board
  specific functionality that fails to work because of incorrect
  settings"

* tag 'armsoc-fixes-5.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (30 commits)
  ARM: tango: Improve ARCH_MULTIPLATFORM compatibility
  firmware: arm_scmi: provide the mandatory device release callback
  ARM: iop32x/n2100: fix PCI IRQ mapping
  arm64: dts: add msm8996 compatible to gicv3
  ARM: dts: am335x-shc.dts: fix wrong cd pin level
  ARM: dts: n900: fix mmc1 card detect gpio polarity
  ARM: dts: omap3-gta04: Fix graph_port warning
  ARM: pxa: ssp: unneeded to free devm_ allocated data
  ARM: dts: r8a7743: Convert to new LVDS DT bindings
  soc: fsl: qbman: avoid race in clearing QMan interrupt
  arm64: dts: renesas: r8a77965: Enable DMA for SCIF2
  arm64: dts: renesas: r8a7796: Enable DMA for SCIF2
  arm64: dts: renesas: r8a774a1: Enable DMA for SCIF2
  ARM: dts: da850: fix interrupt numbers for clocksource
  dt-bindings: imx8mq: Number clocks consecutively
  arm64: dts: meson: Fix mmc cd-gpios polarity
  ARM: dts: imx6sx: correct backward compatible of gpt
  ARM: dts: imx: replace gpio-key,wakeup with wakeup-source property
  ARM: dts: vf610-bk4: fix incorrect #address-cells for dspi3
  ARM: dts: meson8m2: mxiii-plus: mark the SD card detection GPIO active-low
  ...
2019-02-08 16:23:41 -08:00
Linus Torvalds
5bb513ed83 arm64 fixes for -rc6
- Fix kernel oops when attemping kexec_file() with a NULL cmdline
 
 - Fix page table output in debugfs when CONFIG_ARM64_USER_VA_BITS_52=y
 -----BEGIN PGP SIGNATURE-----
 
 iQEzBAABCgAdFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAlxdeK4ACgkQt6xw3ITB
 YzTwrwgArV1AHQTG6HG0Xz86zNbjA25XHr1HFTl75Q7SRu8lufxUXJ/JbIfE5v/v
 D/a40PDsWQeXMHvZT0C/DyByfbfSSigLAwS/psZxmjT5KDgfQCor01UjtWvh+DS+
 U7DnXjLxJFZZ13dJmMPGn3JGmNB5VoKv6w3+9f2rZgECZXdVBQzGPopmjhjmVx5/
 ncGLF4ecxQ1+ldIGGTIC5NSYsFPyhcKxYRlQ/sT/d5oN3wIJNixj7yL14jzx3izG
 OEsu967q3Ajn5lMs2j3k1ixopeOLWYOsSB27oWczJ/XAB4EGU9bbuHOz4alDpE5X
 oDIFuJGrD6s6Ba5E62XtHfp62Iy5pg==
 =UCO2
 -----END PGP SIGNATURE-----

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 "Two arm64 fixes for -rc6. They resolve a kernel NULL dereference in
  kexec and bogus kernel page table dumping when userspace is configured
  for 52-bit virtual addressing.

  Summary:

   - Fix kernel oops when attemping kexec_file() with a NULL cmdline

   - Fix page table output in debugfs when ARM64_USER_VA_BITS_52=y"

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: kexec_file: handle empty command-line
  arm64: ptdump: Don't iterate kernel page tables using PTRS_PER_PXX
2019-02-08 16:21:33 -08:00
Linus Torvalds
820828bffe powerpc fixes for 5.0 #4
Just two fixes, both going to stable.
 
 Our support for split pmd page table lock had a bug which could lead to a crash
 on mremap() when using the Radix MMU (Power9 only).
 
 A fix for the PAPR SCM driver (nvdimm) we added last release, which had a bug
 where we might mis-handle a hypervisor response leading to us failing to attach
 the memory region.
 
 Thanks to:
   Aneesh Kumar K.V, Oliver O'Halloran.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcXXVeAAoJEFHr6jzI4aWA+18P/2EJHmTJ2XgXfQdz7XAEb5YJ
 AXUsg47rm1Cx83PNTOpY4uGVEQmvb+a4DkeSIucoISJeGdo3lDIkGluySYZNaT6E
 1Z8Tm6v5j9WLSV7CQcx0p3jU2xR/iap4HpDa6IiPjT8/4v4SwJvDkZLnqflwA2Q5
 yk8e7gfViWccCD3F+/MyDvOF+t/9PEHP8qd86NtVrUxjx57WN+LehW2D3gi6LdNv
 L4L42ZQndGYXjmF4WkoDVLB/AQLFD95XiO0FlP45nqJK/CPBhi6g9knwg1zI7Fgd
 2yXJJWfxW52EqhFv9D9hmU/5SqgKb0vXgqrNW07HvqMp5WMWP69+gsvLughBb5SE
 KFos9EkVlCkKdBsjdC9nT2p/qxP0MXe8CrGuVSNXAGjw79Je9FM8byYpL45xB5Pm
 bqZnvrjktAhgLvyzz48eSNqMmX1c3GfVwQn3WIxBlO+k1Hd5hzndBD4PEeX8WOo1
 /sTb8B0VHhYM+cyexUufXE5FwXzMWOgW/7GqcgHClHg5/PgaFKs7ZGVa5y0oRn+A
 KWnPjkwQQUNk712AZosEUjffHASNXzkM1ckMm36E8j11OgpplLea3nSoa9vqXZJi
 92d5bqDgUZljQLjxeg52CrPOOr6RCDLQ9UdYgt72UOjhKk2f/Aim9jcFnxg71xOC
 mfEx7R64crDZFMYZT2Ij
 =anwQ
 -----END PGP SIGNATURE-----

Merge tag 'powerpc-5.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:
 "Just two fixes, both going to stable.

   - Our support for split pmd page table lock had a bug which could
     lead to a crash on mremap() when using the Radix MMU (Power9 only).

   - A fix for the PAPR SCM driver (nvdimm) we added last release, which
     had a bug where we might mis-handle a hypervisor response leading
     to us failing to attach the memory region.

  Thanks to: Aneesh Kumar K.V, Oliver O'Halloran"

* tag 'powerpc-5.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/papr_scm: Use the correct bind address
  powerpc/radix: Fix kernel crash with mremap()
2019-02-08 16:04:12 -08:00
Linus Torvalds
6b2912cedc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull signal fixes from Eric Biederman:
 "This contains four small fixes for signal handling. A missing range
  check, a regression fix, prioritizing signals we have already started
  a signal group exit for, and better detection of synchronous signals.

  The confused decision of which signals to handle failed spectacularly
  when a timer was pointed at SIGBUS and the stack overflowed. Resulting
  in an unkillable process in an infinite loop instead of a SIGSEGV and
  core dump"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  signal: Better detection of synchronous signals
  signal: Always notice exiting tasks
  signal: Always attempt to allocate siginfo for SIGSTOP
  signal: Make siginmask safe when passed a signal of 0
2019-02-08 15:39:28 -08:00
Linus Torvalds
3b6e8204a9 SCSI fixes on 20190208
This is a set of five minor fixes (although, tecnhincally, the aicxxx
 fix is for a major problem in that the driver won't load without it,
 but I think the fact it's taken us since 4.10 to discover this
 indicates that the user base for these things has declined).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJwEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXF3VNSYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishUz2AP9L+n9A
 Ma5WutU8gkoNcttX7RJvRmtha9RiwvxRi7cs6QD+OToBDpTbo+kLuzfXz0Gop4Go
 qQziEsBm1P9ShCti3K0=
 =hptI
 -----END PGP SIGNATURE-----

Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "This is a set of five minor fixes (although, tecnhincally, the aicxxx
  fix is for a major problem in that the driver won't load without it,
  but I think the fact it's taken us since 4.10 to discover this
  indicates that the user base for these things has declined)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: cxlflash: Prevent deadlock when adapter probe fails
  Revert "scsi: libfc: Add WARN_ON() when deleting rports"
  scsi: sd_zbc: Fix zone information messages
  scsi: target: make the pi_prot_format ConfigFS path readable
  scsi: aic94xx: fix module loading
2019-02-08 15:37:17 -08:00
Linus Torvalds
2e277fa089 IOMMU Fix for Linux v5.0-rc5:
* Intel decided to leave the newly added Scalable Mode Feature
 	  default-disabled for now. The patch here accomplishes that.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABAgAGBQJcXbITAAoJECvwRC2XARrjuyEQALi6rRLaXXTqGdSDNAC5no7U
 EMHg3u/Ezm6ynLfZVbbCVih4rDy2gXh9dwacFjoWAgodU58wGUVJuGgMok+anax1
 VJPxcHfn0yltb767p4hF65kqcWEKKRssnZLw43E5Tkw/JjyrBwDQ95StdOJIlmd8
 qDiEPIKfTyiZn9QUErCHp+JbrCnkVvxFcFazHh2f8bzv3IjLuN1dA3Uof4mkyqgn
 tt7mmwAi1MdQAaSRUDlnKB9Qqi+TvR3JGII37v54gkmz4BC7xCnAxBZPZHzCJcp8
 JMODezy/ZX2HiaWqWYMf+Idrkd0fxpnfChtkl8SX33UZQcwNS57kBr/L0AshqAjS
 hWUoyOHTF9VWYtA6KgbULpUtlCpWImCwu2tkdYk1fl/OzAWqhoZ11YbSarsbQPC9
 RM8Ear5EhoWIyjqUDm0iKTYifbga2oJ9wBglRC8/QielZdbva3Yh2OKHXNWwhlml
 hUdIUkXHoTLaI0nyhUVTxOs3ixVzv/gZM7HxCXmnNVoPa+jvgFuMXTYPfuFDdX5/
 BHke5FZHGKCTTqRxfcipzdiBcKD71+iGIHMHPw2hBgn026dCCHVW8baFHmXDs5Sv
 nFxzRru0XtxiN9cCXv1IXasxWizrSnVkdy+jIAqwY3r0iO0j9CtKdh3SYd9vpQ/q
 3YbTsBTdgVrJ4GdFoFD+
 =4Nrv
 -----END PGP SIGNATURE-----

Merge tag 'iommu-fixes-v5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fix from Joerg Roedel:
 "Intel decided to leave the newly added Scalable Mode Feature
  default-disabled for now. The patch here accomplishes that"

* tag 'iommu-fixes-v5.0-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Leave scalable mode default off
2019-02-08 15:34:10 -08:00
Linus Torvalds
70be9ac2b6 pci-v5.0-fixes-4
-----BEGIN PGP SIGNATURE-----
 
 iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAlxdj9kUHGJoZWxnYWFz
 QGdvb2dsZS5jb20ACgkQWYigwDrT+vxgyw/5AZCm3QCVGurRJFSGoG1tYodNGut6
 gy1gMP9InYfJIzNQqXWoyGpv/Clu+U2uxCOPYbuz2n7gSFxQq+JN0QygD9m2Ed9W
 Dd7RjbuSjn9ZvWAHJevLI99vxfnWQhX2JoJm5Vhtq6C8k5u1nOXV80C5QVxIjrkf
 sVdzklaO/pcQJ1SnTDhZ2lQc9ruRuDJn3putRNK8LQwfiqY2iDpzUva9DV0V4fb9
 aZtrzacg9DjpJDw27slFbqcl/uuTLjdAELfGJK0gc5Ji7wNdCy1SLFsACVgTId7m
 TyJtxZQaUMhCOeWbgs12quPUQkHY0CR9cmvt/wBU8No+gC3TuhL+bo6ErFpCNDc+
 WkQe7M6G6kFKRqyxgMeqSSZC33vi3kjgILpjce+EXdIYk7XMqG2ZU9NnoXJGnrkB
 hjBRBKb2mcle5K0NpAyFTYPPHzqPa55criKPd8+FOyVDdujMYUEuvZPBarpL+r60
 MdJVFCztkEJpvwLmOqhUnSwATPqV75qWB4l8NwMWQOQFEoWiTEVvSyWqUllcWPQE
 VxB3iRAVat16xL0dZElOaPd/xBmFUIv6UT3FZaP5+RIzUZhf6hN1Hj7w7vYtsoGu
 lSzb3UYNigS9IVj0x8ofltZr9eNnbn7KYzEG37jr6MnwPruGaaT71nNbpIJu0Zk9
 YOiFWttjeQtQZEY=
 =yf6E
 -----END PGP SIGNATURE-----

Merge tag 'pci-v5.0-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fix from Bjorn Helgaas:
 "Work around Synopsys duplicate Device ID (HAPS USB3, NXP i.MX) that
  breaks PCIe on I.MX SoCs (Thinh Nguyen)"

* tag 'pci-v5.0-fixes-4' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: Work around Synopsys duplicate Device ID (HAPS USB3, NXP i.MX)
2019-02-08 15:32:10 -08:00
Linus Torvalds
e2dac603d4 ACPI fix for 5.0-rc6
Prevent excessive ACPI debug messages from being printed to the
 kernel log, which has started to happen after one of the recent
 ACPICA commits (Erik Schmauss).
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQIcBAABCAAGBQJcXWIGAAoJEILEb/54YlRx6WYP/j/Gu/7CSQNqHV2LHLnLHY1I
 xQVPxtH2NGtMCpkzUSxWmB0U4fkDhQVfkqCbnIgjiD54Ndrr0ni7yeDDth2QOBas
 d8A8NidVE3cVZB2L1g5FprWeyFjH/Sb8mmkxvSZnS4PL4A7LT9csmWrMiECShaI3
 u/ARMVTruIh+R4q+CsG63VKo96qu1ySWqG08IEWMNuPK3bv2CrPEVrPM/TBR/7VD
 hy1IJ/PfJhIgIoOBAM9Q6ysZn1Ssmro1UB0g8rjabgTn8RUWm4u5j7DeSCTYQJh9
 knirQxzCKsQYdz43sWOegm1MTRAEpZfUc9jqQw557axm8otQNLB3iMMXsnizqKPg
 COJxGtSXRBmJzhvavIzSBkGf3T2aEtLp4Bmj00hFZZKaPD6AIDEkR2OpKzRF7pVY
 KdNh2OjAbhOy4B/9NS5KPQaL5g8fTh0cR1ZZNfA8Qp2xCLTGwcdrVEuURQXXy2xr
 OJyDNSDHzQBWi0usAN1+/uYYKurPwmxW0HtQ8a3z/rUs7O8z6cW9kq/vc6W+XKUD
 GJt4XB9TM1cvxrXl6cMvOXUT12zcx/BYUX1FSzRP7xH76q4n5GQ3NwdmMEuDuMgG
 MNdd5dQ9NNg5oSW/lcdorPZuwGdraplP4aLjO4z0dC71lyLyT6HWzmdlAlFfTtYY
 re6mj6Nww7c7f/LOltWp
 =4PuZ
 -----END PGP SIGNATURE-----

Merge tag 'acpi-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "This prevents excessive ACPI debug messages from being printed to the
  kernel log, which has started to happen after one of the recent ACPICA
  commits (Erik Schmauss)"

* tag 'acpi-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: Set debug output flags independent of ACPICA
2019-02-08 15:30:02 -08:00
Andrew Lunn
13c80dda84 MAINTAINERS: Update the ocores i2c bus driver maintainer, etc
The listed maintainer has not been responding to emails for a while.
Add myself as a second maintainer.

Add the platform data include file, which was not listed.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2019-02-08 22:15:24 +01:00
Liu Bo
2698484178 blk-mq: remove duplicated definition of blk_mq_freeze_queue
As the prototype has been defined in "include/linux/blk-mq.h", the one
in "block/blk-mq.h" can be removed then.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-08 12:42:29 -07:00
Liu Bo
391f552af2 Blk-iolatency: warn on negative inflight IO counter
This is to catch any unexpected negative value of inflight IO counter.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-08 12:42:27 -07:00
Liu Bo
8c772a9bfc blk-iolatency: fix IO hang due to negative inflight counter
Our test reported the following stack, and vmcore showed that
->inflight counter is -1.

[ffffc9003fcc38d0] __schedule at ffffffff8173d95d
[ffffc9003fcc3958] schedule at ffffffff8173de26
[ffffc9003fcc3970] io_schedule at ffffffff810bb6b6
[ffffc9003fcc3988] blkcg_iolatency_throttle at ffffffff813911cb
[ffffc9003fcc3a20] rq_qos_throttle at ffffffff813847f3
[ffffc9003fcc3a48] blk_mq_make_request at ffffffff8137468a
[ffffc9003fcc3b08] generic_make_request at ffffffff81368b49
[ffffc9003fcc3b68] submit_bio at ffffffff81368d7d
[ffffc9003fcc3bb8] ext4_io_submit at ffffffffa031be00 [ext4]
[ffffc9003fcc3c00] ext4_writepages at ffffffffa03163de [ext4]
[ffffc9003fcc3d68] do_writepages at ffffffff811c49ae
[ffffc9003fcc3d78] __filemap_fdatawrite_range at ffffffff811b6188
[ffffc9003fcc3e30] filemap_write_and_wait_range at ffffffff811b6301
[ffffc9003fcc3e60] ext4_sync_file at ffffffffa030cee8 [ext4]
[ffffc9003fcc3ea8] vfs_fsync_range at ffffffff8128594b
[ffffc9003fcc3ee8] do_fsync at ffffffff81285abd
[ffffc9003fcc3f18] sys_fsync at ffffffff81285d50
[ffffc9003fcc3f28] do_syscall_64 at ffffffff81003c04
[ffffc9003fcc3f50] entry_SYSCALL_64_after_swapgs at ffffffff81742b8e

The ->inflight counter may be negative (-1) if

1) blk-iolatency was disabled when the IO was issued,

2) blk-iolatency was enabled before this IO reached its endio,

3) the ->inflight counter is decreased from 0 to -1 in endio()

In fact the hang can be easily reproduced by the below script,

H=/sys/fs/cgroup/unified/
P=/sys/fs/cgroup/unified/test

echo "+io" > $H/cgroup.subtree_control
mkdir -p $P

echo $$ > $P/cgroup.procs

xfs_io -f -d -c "pwrite 0 4k" /dev/sdg

echo "`cat /sys/block/sdg/dev` target=1000000" > $P/io.latency

xfs_io -f -d -c "pwrite 0 4k" /dev/sdg

This fixes the problem by freezing the queue so that while
enabling/disabling iolatency, there is no inflight rq running.

Note that quiesce_queue is not needed as this only updating iolatency
configuration about which dispatching request_queue doesn't care.

Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-08 12:42:26 -07:00
Linus Torvalds
27b4ad621e Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
 "This pull request is dedicated to the upcoming snowpocalypse parts 2
  and 3 in the Pacific Northwest:

   1) Drop profiles are broken because some drivers use dev_kfree_skb*
      instead of dev_consume_skb*, from Yang Wei.

   2) Fix IWLWIFI kconfig deps, from Luca Coelho.

   3) Fix percpu maps updating in bpftool, from Paolo Abeni.

   4) Missing station release in batman-adv, from Felix Fietkau.

   5) Fix some networking compat ioctl bugs, from Johannes Berg.

   6) ucc_geth must reset the BQL queue state when stopping the device,
      from Mathias Thore.

   7) Several XDP bug fixes in virtio_net from Toshiaki Makita.

   8) TSO packets must be sent always on queue 0 in stmmac, from Jose
      Abreu.

   9) Fix socket refcounting bug in RDS, from Eric Dumazet.

  10) Handle sparse cpu allocations in bpf selftests, from Martynas
      Pumputis.

  11) Make sure mgmt frames have enough tailroom in mac80211, from Felix
      Feitkau.

  12) Use safe list walking in sctp_sendmsg() asoc list traversal, from
      Greg Kroah-Hartman.

  13) Make DCCP's ccid_hc_[rt]x_parse_options always check for NULL
      ccid, from Eric Dumazet.

  14) Need to reload WoL password into bcmsysport device after deep
      sleeps, from Florian Fainelli.

  15) Remove filter from mask before freeing in cls_flower, from Petr
      Machata.

  16) Missing release and use after free in error paths of s390 qeth
      code, from Julian Wiedmann.

  17) Fix lockdep false positive in dsa code, from Marc Zyngier.

  18) Fix counting of ATU violations in mv88e6xxx, from Andrew Lunn.

  19) Fix EQ firmware assert in qed driver, from Manish Chopra.

  20) Don't default Caivum PTP to Y in kconfig, from Bjorn Helgaas"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (116 commits)
  net: dsa: b53: Fix for failure when irq is not defined in dt
  sit: check if IPv6 enabled before calling ip6_err_gen_icmpv6_unreach()
  geneve: should not call rt6_lookup() when ipv6 was disabled
  net: Don't default Cavium PTP driver to 'y'
  net: broadcom: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: via-velocity: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: tehuti: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: sun: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: fsl_ucc_hdlc: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: fec_mpc52xx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: smsc: epic100: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: dscc4: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: tulip: de2104x: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net: defxx: replace dev_kfree_skb_irq by dev_consume_skb_irq for drop profiles
  net/mlx5e: Don't overwrite pedit action when multiple pedit used
  net/mlx5e: Update hw flows when encap source mac changed
  qed*: Advance drivers version to 8.37.0.20
  qed: Change verbosity for coalescing message.
  qede: Fix system crash on configuring channels.
  qed: Consider TX tcs while deriving the max num_queues for PF.
  ...
2019-02-08 11:21:54 -08:00
Linus Torvalds
680905431b Char/Misc fixes for 5.0-rc6
Here are some small char and misc driver fixes for 5.0-rc6.
 
 Nothing huge here, some more binderfs fixups found as people use it, and
 there is a "large" selftest added to validate the binderfs code, which
 makes up the majority of this pull request.
 
 There's also some small mei and mic fixes to resolve some reported
 issues.
 
 All of these have been in linux-next for over a week with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXF03cw8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+ynULgCeILcTViHw5hJDl719p776CiVjOmMAn2wFXob9
 vk5MXb1j5Uf4liLz2x9K
 =jGjf
 -----END PGP SIGNATURE-----

Merge tag 'char-misc-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc fixes from Greg KH:
 "Here are some small char and misc driver fixes for 5.0-rc6.

  Nothing huge here, some more binderfs fixups found as people use it,
  and there is a "large" selftest added to validate the binderfs code,
  which makes up the majority of this pull request.

  There's also some small mei and mic fixes to resolve some reported
  issues.

  All of these have been in linux-next for over a week with no reported
  issues"

* tag 'char-misc-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  mic: vop: Fix crash on remove
  mic: vop: Fix use-after-free on remove
  binderfs: remove separate device_initcall()
  fpga: stratix10-soc: fix wrong of_node_put() in init function
  mic: vop: Fix broken virtqueues
  mei: free read cb on ctrl_wr list flush
  samples: mei: use /dev/mei0 instead of /dev/mei
  mei: me: add ice lake point device id.
  binderfs: respect limit on binder control creation
  binder: fix CONFIG_ANDROID_BINDER_DEVICES
  selftests: add binderfs selftests
2019-02-08 10:56:31 -08:00
Linus Torvalds
8c8e62cc98 Driver core fixes for 5.0-rc6
Here are some driver core fixes for 5.0-rc6.
 
 Well, not so much "driver core" as "debugfs".  There's a lot of
 outstanding debugfs cleanup patches coming in through different
 subsystem trees, and in that process the debugfs core was found that it
 really should return errors when something bad happens, to prevent
 random files from showing up in the root of debugfs afterward.  So
 debugfs was fixed up to handle this properly, and then two fixes for
 the relay and blk-mq code was needed as it was making invalid
 assumptions about debugfs return values.
 
 There's also a cacheinfo fix in here that resolves a tiny issue.
 
 All of these have been in linux-next for over a week with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXF069g8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+yk0+gCgy9PTVAJR5ZbYtWTJOTdBnd7pfqMAoMuGxc+6
 LLEbfSykLRxEf5SeOJun
 =KP8e
 -----END PGP SIGNATURE-----

Merge tag 'driver-core-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are some driver core fixes for 5.0-rc6.

  Well, not so much "driver core" as "debugfs". There's a lot of
  outstanding debugfs cleanup patches coming in through different
  subsystem trees, and in that process the debugfs core was found that
  it really should return errors when something bad happens, to prevent
  random files from showing up in the root of debugfs afterward. So
  debugfs was fixed up to handle this properly, and then two fixes for
  the relay and blk-mq code was needed as it was making invalid
  assumptions about debugfs return values.

  There's also a cacheinfo fix in here that resolves a tiny issue.

  All of these have been in linux-next for over a week with no reported
  problems"

* tag 'driver-core-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  blk-mq: protect debugfs_create_files() from failures
  relay: check return of create_buf_file() properly
  debugfs: debugfs_lookup() should return NULL if not found
  debugfs: return error values, not NULL
  debugfs: fix debugfs_rename parameter checking
  cacheinfo: Keep the old value if of_property_read_u32 fails
2019-02-08 10:53:44 -08:00
Linus Torvalds
e464f50c05 Staging/IIO driver fixes for 5.0-rc6
Here are some small iio and staging driver fixes for 5.0-rc6.
 
 Nothing big, just resolve some reported IIO driver issues, and one
 staging driver bug.  One staging driver patch was added and then
 reverted as well.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXF08/g8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+yncDQCdHPommvFLUaEcsStGC8Ijg6kBn8IAoJTxwIvQ
 Qt9HCHiSuniry6xGY+UP
 =lZ/Y
 -----END PGP SIGNATURE-----

Merge tag 'staging-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO driver fixes from Greg KH:
 "Here are some small iio and staging driver fixes for 5.0-rc6.

  Nothing big, just resolve some reported IIO driver issues, and one
  staging driver bug. One staging driver patch was added and then
  reverted as well.

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

* tag 'staging-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  Revert "staging: erofs: keep corrupted fs from crashing kernel in erofs_namei()"
  staging: erofs: keep corrupted fs from crashing kernel in erofs_namei()
  staging: octeon: fix broken phylib usage
  iio: ti-ads8688: Update buffer allocation for timestamps
  tools: iio: iio_generic_buffer: make num_loops signed
  iio: adc: axp288: Fix TS-pin handling
  iio: chemical: atlas-ph-sensor: correct IIO_TEMP values to millicelsius
2019-02-08 10:51:59 -08:00
Linus Torvalds
e22a15d1c4 TTY/Serial fixes for 5.0-rc6
Here are some small tty and serial fixes for 5.0-rc6.
 
 Nothing huge, just a few small fixes for reported issues.  The speakup
 fix is in here as it is a tty operation issue.
 
 All of these have been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXF09tg8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+yniTwCfQ9Owr8XFJRW7QC0BPKDjohqewA8AniK/9YJ/
 l73fnvsXELOX9eE/ixCx
 =0ylh
 -----END PGP SIGNATURE-----

Merge tag 'tty-5.0-rc6' 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 fixes for 5.0-rc6.

  Nothing huge, just a few small fixes for reported issues. The speakup
  fix is in here as it is a tty operation issue.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'tty-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  serial: fix race between flush_to_ldisc and tty_open
  staging: speakup: fix tty-operation NULL derefs
  serial: sh-sci: Do not free irqs that have already been freed
  serial: 8250_pci: Make PCI class test non fatal
  tty: serial: 8250_mtk: Fix potential NULL pointer dereference
2019-02-08 10:49:55 -08:00
Linus Torvalds
00a159a000 USB fixes for 5.0-rc6
Here are some small USB fixes for 5.0-rc6.
 
 Nothing huge, the normal amount of USB gadget fixes as well as some USB
 phy fixes.  There's also a typec fix as well.  Full details are in the
 shortlog.
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 -----BEGIN PGP SIGNATURE-----
 
 iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXF0/lA8cZ3JlZ0Brcm9h
 aC5jb20ACgkQMUfUDdst+yl6eQCghkBzTYeI+3EeDmgHuXytebeukL8AoLUA+PqG
 5Xx1AOUpyiYiNU2BgO0H
 =qovg
 -----END PGP SIGNATURE-----

Merge tag 'usb-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB fixes from Grek KH:
 "Here are some small USB fixes for 5.0-rc6.

  Nothing huge, the normal amount of USB gadget fixes as well as some
  USB phy fixes. There's also a typec fix as well. Full details are in
  the shortlog.

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

* tag 'usb-5.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: typec: tcpm: Correct the PPS out_volt calculation
  usb: gadget: musb: fix short isoc packets with inventra dma
  usb: phy: am335x: fix race condition in _probe
  usb: dwc3: exynos: Fix error handling of clk_prepare_enable
  usb: phy: fix link errors
  usb: gadget: udc: net2272: Fix bitwise and boolean operations
  usb: dwc3: gadget: Handle 0 xfer length for OUT EP
2019-02-08 10:48:26 -08:00
Linus Torvalds
bd5ff862ec Changes since last update:
- Fix cache coherency problem with writeback mappings
 - Fix buffer deadlock when shutting fs down
 - Fix a null pointer dereference when running online repair
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEUzaAxoMeQq6m2jMV+H93GTRKtOsFAlxYbyEACgkQ+H93GTRK
 tOtLNg//VIiU6w1EgiQBgk8XxN3i9YQLBIzfbtgZGtLJWX8zYnGx9H4iVfZ9UDr8
 eKFoPVLvqZo5mutuot+3+ps5H4z6g9BotS048FJjFoarQwtYqnG3tcFkmLDInKW1
 jTPWBV/P7w+ODyPO082SyQ+Zn9pooyXkPoBbgA+vbQoqIsY5IF7VeFasrFMtRu21
 PEm/CpMxK5VMly+5ceOoqtdlWvRPDfczLfzW/iDZ4Qs2itUqFA6TJo5TD7kd4A/f
 yrjV6H5tWtp0uvBCBDq4W225uVUFVWC+wTrrII6qbvuDBNWfBsQ65GczYubAAu9X
 kdJdY3xj/Br1dk6jLTciCjihbjJ49xaxXfLAokNkh1pjHqHyinB5ALXC0dG4o+eo
 d5y5qo10zt3HZ8Kzr8753SzxRBjGbQhok+ytrBSpX8GckhAXmH5S6WZDFDh6PbJj
 5PSwvL7FNbS4M/Myjl+dwk3kWLVrGV2SglOJxCCsqCZPxNzopIrNf1uazLTZV+/2
 d+G7LQPXSvjK/iLfDQH/6sBIREx0nd3H/6mnmWBg/1xMD6z/Hgn8GJvAE8luRtOi
 usXYcjlkSEOSwxbUC4fCo0CrPp8DOHbrEEO4pavTN+GVIYsIen0ghq/x0HfcOCEu
 XguyRTYdQXnLZNo3zCqmnU4/C1W2L5Oce4IDznH8PEIgqAqXXrQ=
 =XsPH
 -----END PGP SIGNATURE-----

Merge tag 'xfs-5.0-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:
 "Here are a handful of XFS fixes to fix a data corruption problem, a
  crasher bug, and a deadlock.

  Summary:

   - Fix cache coherency problem with writeback mappings

   - Fix buffer deadlock when shutting fs down

   - Fix a null pointer dereference when running online repair"

* tag 'xfs-5.0-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: set buffer ops when repair probes for btree type
  xfs: end sync buffer I/O properly on shutdown error
  xfs: eof trim writeback mapping as soon as it is cached
2019-02-08 10:46:14 -08:00
Linus Torvalds
adcbc921d3 drm amdgpu, vmwgfx, i915, omap, sun4i fixes
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcXNDUAAoJEAx081l5xIa+YA4P/iQVY9pqFPjvomNHN+WtuIG4
 iSAp/8fXmLnLch/JJoU5uwL/WuudIj/hryad3rJ5VR0nALF3+L8bbruEry7XeiL7
 QrocTD9lVLxijQtwIKZjWe88+gQ5u1aI2NwK/ThfFVkXiwmQ7dDvSnKw2oy1tdAk
 Yq37xWLqDz/KTK1D/IN9GHFo74OblvGseYYY70w2/JczDbP6k8Y8++JmffIhI+Cw
 vu4bXlvEiZSiT42fGGLFmnZAnhXo+j3Ws8PEh3MLUu75jF3pX1Zyi5+7aI//Kan3
 MwmYBHTRpAdWSZaAxYdrvaTc7tRm+1iRT0NkZEtXzKk8YMktWsJb7TxnsvzSrYh6
 jdydjrwRwbLAvJz5WOnAunFJNV9zAFNL6R8dzYoE9/S683Qa/7bDDeJvVax4ifQQ
 ZFByZep4/5oJ4BTwnY1bfiCZztZGr1FfMHg8HWikablkF9G8eODE0AccTFojvcFc
 44cmQzceJN9harxGdzPJjjMRT7DtLlOzl8/6LGo4kGfsIMG5NaREbglQLLyVyXms
 MkI+efdlyIYpZV5W4Jf/RqEkSu2qnVe7UVGer1aW8yq+G0fedAsc8Bx4gL8YaaJQ
 bLa1MI5SszvtD0+KJ6hpK1/L2bnZzXMr3cXUe9noz91KlCnnWlaMDC1keg2RrYpG
 CaczuvcpPdBmOYXwWoMc
 =X7tw
 -----END PGP SIGNATURE-----

Merge tag 'drm-fixes-2019-02-08' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Missed fixes last week as had nothing until amdgpu showed up on
  Saturday. Other stuff has since rolled in along with some more amdgpu
  fixes, so we have two weeks of those, and some i915, vmwgfx, sun4i,
  rockchip and omap fixes.

  amdgpu/radeon:
   - fix crash on passthrough for SI
   - fencing fix for shared buffers
   - APU hwmon fix
   - API powerplay fix
   - eDP freesync fix
   - PASID mgr locking fix
   - KFD warning fix
   - DC/powerplay fix
   - raven revision ids fix
   - vega20 doorbell fix

  i915:
   - SNB display fix
   - SKL srckey mask fix
   - ICL DDI clock selection fix

  vmwgfx:
   - DMA API fix
   - IOMMU detection fix
   - display fixes

  sun4i:
   - tcon clock fix

  rockchip:
   - SPDX identifier fix

  omap:
   - DSI fixes"

* tag 'drm-fixes-2019-02-08' of git://anongit.freedesktop.org/drm/drm: (28 commits)
  drm/omap: dsi: Hack-fix DSI bus flags
  drm/omap: dsi: Fix OF platform depopulate
  drm/omap: dsi: Fix crash in DSI debug dumps
  drm/i915: Try to sanitize bogus DPLL state left over by broken SNB BIOSen
  drm/amd/display: Attach VRR properties for eDP connectors
  drm/amdkfd: Fix if preprocessor statement above kfd_fill_iolink_info_for_cpu
  drm/amdgpu: use spin_lock_irqsave to protect vm_manager.pasid_idr
  drm/i915: always return something on DDI clock selection
  drm/i915: Fix skl srckey mask bits
  drm/vmwgfx: Improve on IOMMU detection
  drm/vmwgfx: Fix setting of dma masks
  drm/vmwgfx: Also check for crtc status while checking for DU active
  drm/vmwgfx: Fix an uninitialized fence handle value
  drm/vmwgfx: Return error code from vmw_execbuf_copy_fence_user
  drm/sun4i: tcon: Prepare and enable TCON channel 0 clock at init
  drm/amdgpu: fix the incorrect external id for raven series
  drm/amdgpu: Implement doorbell self-ring for NBIO 7.4
  drm/amd/display: Fix fclk idle state
  drm/amdgpu: Transfer fences to dmabuf importer
  drm/amd/powerplay: Fix missing break in switch
  ...
2019-02-08 10:43:15 -08:00
Lukas Bulwahn
9ab7d228e9 MAINTAINERS: unify reference to xen-devel list
In the linux kernel MAINTAINERS file, largely
  "xen-devel@lists.xenproject.org (moderated for non-subscribers)"
is used to refer to the xen-devel mailing list.

The DRM DRIVERS FOR XEN section entry mentions
xen-devel@lists.xen.org instead, but that is just the same
mailing list as the mailing list above.

Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
2019-02-08 17:18:00 +01:00
Peter Zijlstra
0521e8be21 x86/mm/cpa: Fix set_mce_nospec()
The recent commit fe0937b24f ("x86/mm/cpa: Fold cpa_flush_range() and
cpa_flush_array() into a single cpa_flush() function") accidentally made
the call to make_addr_canonical_again() go away, which breaks
set_mce_nospec().

Re-instate the call to convert the address back into canonical form right
before invoking either CLFLUSH or INVLPG. Rename the function while at it
to be shorter (and less MAGA).

Fixes: fe0937b24f ("x86/mm/cpa: Fold cpa_flush_range() and cpa_flush_array() into a single cpa_flush() function")
Reported-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Tony Luck <tony.luck@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Rik van Riel <riel@surriel.com>
Link: https://lkml.kernel.org/r/20190208120859.GH32511@hirez.programming.kicks-ass.net
2019-02-08 14:31:56 +01:00
Thomas Gleixner
1a1fb985f2 futex: Handle early deadlock return correctly
commit 56222b212e ("futex: Drop hb->lock before enqueueing on the
rtmutex") changed the locking rules in the futex code so that the hash
bucket lock is not longer held while the waiter is enqueued into the
rtmutex wait list. This made the lock and the unlock path symmetric, but
unfortunately the possible early exit from __rt_mutex_proxy_start() due to
a detected deadlock was not updated accordingly. That allows a concurrent
unlocker to observe inconsitent state which triggers the warning in the
unlock path.

futex_lock_pi()                         futex_unlock_pi()
  lock(hb->lock)
  queue(hb_waiter)				lock(hb->lock)
  lock(rtmutex->wait_lock)
  unlock(hb->lock)
                                        // acquired hb->lock
                                        hb_waiter = futex_top_waiter()
                                        lock(rtmutex->wait_lock)
  __rt_mutex_proxy_start()
     ---> fail
          remove(rtmutex_waiter);
     ---> returns -EDEADLOCK
  unlock(rtmutex->wait_lock)
                                        // acquired wait_lock
                                        wake_futex_pi()
                                        rt_mutex_next_owner()
					  --> returns NULL
                                          --> WARN

  lock(hb->lock)
  unqueue(hb_waiter)

The problem is caused by the remove(rtmutex_waiter) in the failure case of
__rt_mutex_proxy_start() as this lets the unlocker observe a waiter in the
hash bucket but no waiter on the rtmutex, i.e. inconsistent state.

The original commit handles this correctly for the other early return cases
(timeout, signal) by delaying the removal of the rtmutex waiter until the
returning task reacquired the hash bucket lock.

Treat the failure case of __rt_mutex_proxy_start() in the same way and let
the existing cleanup code handle the eventual handover of the rtmutex
gracefully. The regular rt_mutex_proxy_start() gains the rtmutex waiter
removal for the failure case, so that the other callsites are still
operating correctly.

Add proper comments to the code so all these details are fully documented.

Thanks to Peter for helping with the analysis and writing the really
valuable code comments.

Fixes: 56222b212e ("futex: Drop hb->lock before enqueueing on the rtmutex")
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Co-developed-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linux-s390@vger.kernel.org
Cc: Stefan Liebler <stli@linux.ibm.com>
Cc: Sebastian Sewior <bigeasy@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/alpine.DEB.2.21.1901292311410.1950@nanos.tec.linutronix.de
2019-02-08 13:00:36 +01:00
Davidlohr Bueso
6f568ebe2a futex: Fix barrier comment
The current comment for the barrier that guarantees that waiter increment
is always before taking the hb spinlock (barrier (A)) needs to be fixed as
it is misplaced.

This is obviously referring to hb_waiters_inc, which is a full barrier.

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190206185602.949-1-dave@stgolabs.net
2019-02-08 13:00:35 +01:00
Arun Parameswaran
39841cc1cb net: dsa: b53: Fix for failure when irq is not defined in dt
Fixes the issues with non BCM58XX chips in the b53 driver
failing, when the irq is not specified in the device tree.

Removed the check for BCM58XX in b53_srab_prepare_irq(),
so the 'port->irq' will be set to '-EXIO' if the irq is not
specified in the device tree.

Fixes: 16994374a6 ("net: dsa: b53: Make SRAB driver manage port interrupts")
Fixes: b2ddc48a81 ("net: dsa: b53: Do not fail when IRQ are not initialized")
Signed-off-by: Arun Parameswaran <arun.parameswaran@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07 18:18:37 -08:00
Dave Airlie
dada163c5e drm-misc-fixes for v5.0-rc6:
- Fixes to omap/dsi encoder.
 - Clock fix for sun4i.
 - Licensing header fix for rockchip.
 - Fix division by zero in the mode when trying to set a mode on
   i915 with GVT-g enabled.
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEuXvWqAysSYEJGuVH/lWMcqZwE8MFAlxb6lcACgkQ/lWMcqZw
 E8OpAQ//VspiZ8iU5GO8beSu6HP92WFUVxHyJ0tZMYLrtcjqTltAM3PljMGJa7s1
 DMv0RWJrZP+Vo1Qr+oGRGsBftOvpJbu0/Nt0OfOiG6Qo1Hb+rJgoKqXSEbBlufXP
 A2DcBR6aio1RhPuSEqsw91LoWh6qXmyQPpy9gNerChNaOMCWLJCmjtiSEI8gkdHq
 EqRvnUWPn3Tlg6lPZKpOOxIlp5UR+BP1yWvipEDkPxtKUhoEvPy/ien9LCkgA8+0
 JFLv9yHOW5NVA4zrodSIFs3qk1yTFEifkce4JObme8YZ01ejT23PHwHOhP7BWdt9
 Yn3ESABcvxW1cUHvFUzP3jFyWrHyDcv/ZA2gAxDQ/utb7pB3mMzW0sdANU+BZ0tc
 SS9wQnl/q35z83L96GyBPNUFAb3QOLN7X8V+pghwmTJ/IOrvn/+qyYINbmQSXPcR
 +Od6qLx0n8kEmZOp6GgVcF/wSTULltPbR6heYYqYRbR+TN82IYMn+00UWWtVF2z+
 mfYpaFMbw9DBbO0A75q8PV15WbvR+dCX4ii5MWxMuv+m4gObwUkr5gV+eHs8Da6Q
 WmH8kiXak22Q1gu6ZdqO+dB2dew0gXqRXsNyeKA6JC0Z8feGpDwZUPt9gqQYHMUF
 fJoO/LPaQsIaZ+nnMFdbZcoHsdGbynxIML4SSpge/GerkA2XAUI=
 =ONtd
 -----END PGP SIGNATURE-----

Merge tag 'drm-misc-fixes-2019-02-07' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

drm-misc-fixes for v5.0-rc6:
- Fixes to omap/dsi encoder.
- Clock fix for sun4i.
- Licensing header fix for rockchip.
- Fix division by zero in the mode when trying to set a mode on
  i915 with GVT-g enabled.

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

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/84462cef-609f-e2af-084a-f9fe2b05c53e@linux.intel.com
2019-02-08 10:32:49 +10:00
Dave Airlie
151e3d6add drm/i915 fixes for v5.0-rc6:
- SNB DPLL sanitize
 - ICL DDI clock selection
 - SLK srckey mask
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEFWWmW3ewYy4RJOWc05gHnSar7m8FAlxb4ncACgkQ05gHnSar
 7m/8tg/+Kvp8ueti2ZdSfbtoOQML4r1Q8Mg4T8l5L41PHPtVvyvUxPeQd8t0nkum
 G1C++lq+qzoyHpLRB5hO5CciyuuWlzK9EXprYtaCu/4W1QJbECWwPMcU9hitdI5h
 fCAsLwPYTx9eiCsO+1cRIAbhEo/S9U5WJ0+SMPZtALLZItkKaCUAJ9qhyQPlLlYN
 ZdkZjTc416BLMNXxoclorMmg/5IMYgwdcovivifuDaZQ7TJLZDow0vBemIMNtnce
 FZPyeoyjHq04deG2CR1HQYgYCPRI9U0LoGaEYb7lltNJHCCHxWEZ/MmPCxdI9ZgK
 CJfkPPSyhFrEPrRYcOX5ERuADQdNk2BEBdrEpm5gvrGkZrH14QZza5PvEF+CoqQB
 9Xvh5Jeo7aZ8tXW71BgvV1WpHSnravrVwV2JPf51wEY47MBIj7YpGErIrFM1VdB+
 pw40pPk6VwD1qisqrj+dVeAYLkSgLZJgcHp7E0ACu6IWWoeNRKniKuSVn5hcyHNQ
 Ql6AK0Bj6MK+3opotdRCjhguS50rSd14nainEhp+t1qji/GnuYDBUqAJn0xhfhOo
 cpUgCp0oZCUzK4cJb/hLUBtiJCDolFkrRnGXhhsf34raPbjasky7ZBfS6DGrvLHT
 D/tZJY2wXW2EUROHvxuhTIpFebnE2y+GvMnKxhGPZa/+Mzv9WX8=
 =3RSQ
 -----END PGP SIGNATURE-----

Merge tag 'drm-intel-fixes-2019-02-07-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v5.0-rc6:
- SNB DPLL sanitize
- ICL DDI clock selection
- SLK srckey mask

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

From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87lg2s6nur.fsf@intel.com
2019-02-08 10:30:57 +10:00
Linus Torvalds
74e96711e3 platform-drivers-x86 for v5.0-2
Correct Documentation/ABI 4.21 KernelVersion to 5.0.
 
 The following is an automated git shortlog grouped by driver:
 
 Documentation/ABI:
  -  Correct mlxreg-io KernelVersion for 5.0
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABAgAGBQJcXLDcAAoJEKbMaAwKp364z6wH/2sXsncu1ohf79YNXeeBlJKO
 Zy8MCU3uhwY78+x9FLphDRhR5PlvulFflJg1i/eHEWYZ8BTd6gI1CevbAb18XZ2F
 RGeHzGKvV40L+mn6ykGXWmCLAnEfCS1ICBLwpM9o9O22FKjNqPv0etryQE9whJ/J
 mH8tPL4tMU3Y41HxMPl/e/K1tGNsRD3WRQp3AvgS3GimtEQHm4uHqvpaijc/I5UZ
 7STLWIm6e60lwHUGyqg2O4MxWUEZ0D129qw2kG1Bj6EOx0y90htqTeZunwbJxCGt
 GvJG6PnGDfWakzHreyqb8pxNoJqO3dFzpIympZ5+lFRy47APxBxKYx1hLwYl1Rs=
 =DUJg
 -----END PGP SIGNATURE-----

Merge tag 'platform-drivers-x86-v5.0-2' of git://git.infradead.org/linux-platform-drivers-x86

Pull x86 platform driver fixlet from Darren Hart:
 "Correct Documentation/ABI 4.21 KernelVersion to 5.0"

* tag 'platform-drivers-x86-v5.0-2' of git://git.infradead.org/linux-platform-drivers-x86:
  Documentation/ABI: Correct mlxreg-io KernelVersion for 5.0
2019-02-07 15:54:45 -07:00
Linus Torvalds
e303a067ce Three security fixes.
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQEcBAABAgAGBQJcXHSEAAoJEL/70l94x66DpJUH/Rl3uJGdezeL/BgDkABruIuv
 kJwjWUPjjVtcrz1UPjc8YENDG7g0tLDlFajRXXxMJh+MWMDi/YED27ev4fbGJEnZ
 ApApV0pWNLev+Y5QK4GRn4T9iW4HSuqlDW3gjj9PP0E/93lX8DCALQ+yD1sGsmmE
 yG+0rGOcWqlxD3pPhVESHmi/AGzsD82GDe2in8z/iET8ucxy1lmFlISEYbSxXNa/
 o06C65The6sIn3IrqbP3aKEZ9mrpCe51pJm0YwJJpmg6UWcBiNuU+lbzg6qOthP7
 1fmYy+j/BM+9cFEnFxp8gUW4LWTtlta5cDcDJhTXdaw8XFroac+T1z6ZGQd7838=
 =iKIE
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Paolo Bonzini:
 "Three security fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: nVMX: unconditionally cancel preemption timer in free_nested (CVE-2019-7221)
  KVM: x86: work around leak of uninitialized stack contents (CVE-2019-7222)
  kvm: fix kvm_ioctl_create_device() reference counting (CVE-2019-6974)
2019-02-07 15:53:26 -07:00
Linus Torvalds
ee6c0737a0 Two small nfsd bugfixes for 5.0, for an RDMA bug and a file clone bug.
-----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJcXJY6AAoJECebzXlCjuG+scAP/jm9ETUxC3E9ZcVetSLs7vf1
 AxHVsr3E3qf9uViq/+1NBRJ/BKE1Porzi1Uz01ie5MdY6SHWFMxvIvZrTRuEAhbc
 VA9xeRcnX+7RkPWik3sepSUieVy8KgJDMxdE07HwwyzST14I1s5Ev79wo6XiYlTw
 3+ZdZe19Y4owmTkbDiLsxJVsI2Y8b+9BIhZ9/ICRyFzZclnyLdO15HTDr4q7E9cw
 ZEZMOoljX4cjY8cD7tqf68QECxZYm4a8Ba+L6P+oqKajq/6yUrocXA2UG65EMtIQ
 LtMIdpkC+zHFagRQBC3ymqEWTpX9ED6TA4H4ZSdh6UH8NwYXHsxQUYfI4Oetju/B
 iqWBbXpwg2jMNRDhXS/KdNezYcGjYGJZ03dezeSP/GwojoiKALD0iXxWU2zyq0Qs
 crnhmc2j1wZZl5CFXLCYwjDjHbeH6gWGfLuzAv1Q9/jQUitQ2CpC4t1MCRdOlWBt
 cqjCleF6Rd3oVk51BdYPm5OyCHyQjrrXmOsx8aHkY774p7TqsaHBjSreTBjQWhO8
 wAfnr6yS4/21Hfrji52Nf4Q6UJ1FFEWB0wXJhYAHzem1RsPGSbnEDam6Bpd6Bh0d
 ZxAU4spoVhezQPjF4JCmHfiAJ7rbegfltJa669rE5L1kbUYYE6TAAcOm8RTSWoPZ
 iGxkg/en5XiGsOGH9AyB
 =++rV
 -----END PGP SIGNATURE-----

Merge tag 'nfsd-5.0-1' of git://linux-nfs.org/~bfields/linux

Pull nfsd fixes from Bruce Fields:
 "Two small nfsd bugfixes for 5.0, for an RDMA bug and a file clone bug"

* tag 'nfsd-5.0-1' of git://linux-nfs.org/~bfields/linux:
  svcrdma: Remove max_sge check at connect time
  nfsd: Fix error return values for nfsd4_clone_file_range()
2019-02-07 15:44:45 -07:00
Linus Torvalds
8b5cdbe595 - Fix DM core's missing memory barrier before waitqueue_active() calls.
- Fix DM core's clone_bio() to work when cloning a subset of a bio with
   an integrity payload; bio_integrity_trim() wasn't getting called due
   to bio_trim()'s early return.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJcXGHSAAoJEMUj8QotnQNaZMcIAMxj39Gvh/e2dx5zKuHBPO4+
 e5aMnCGzFwTdV4lfmfIU8pa5CAxAQXWOO5fH5IMzAI2rne5uczHK5a1V5YrL5OuP
 P0j0UNKt58FZlRiXxaMwURoRZeJ2nKe0R+LWw1W5cEGGM45C5okMaWrdmbdHOk9/
 G09yk8SsjXAGhuadCcY+aY7SrLi6KAaz3A9G/EzU8r9QirLkRVyaDmXIZrD8+Kgv
 8gmSlL3LvQbUUU70gPEU7yXp86+/lZi5VQysBSG7aOZcmBsZuNeXOTgt/7DWFJ7S
 Wj81Ib9pOg0PPYweB7PZ53BKRTydlTpzfEKaeG5+gFJgn6NPxR22SeOb1WnZ0Lg=
 =rtij
 -----END PGP SIGNATURE-----

Merge tag 'for-5.0/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:
 "Both of these fixes address issues in changes merged for 5.0-rc4:

   - Fix DM core's missing memory barrier before waitqueue_active()
     calls.

   - Fix DM core's clone_bio() to work when cloning a subset of a bio
     with an integrity payload; bio_integrity_trim() wasn't getting
     called due to bio_trim()'s early return"

* tag 'for-5.0/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: don't use bio_trim() afterall
  dm: add memory barrier before waitqueue_active
2019-02-07 15:42:43 -07:00
Thomas Gleixner
8087f40736 irqchip update for 5.0-rc6
- Another GICv3 ITS fix for devices sharing the same DevID
 - Don't return invalid data on exhaustion of the GICv3 LPI pool
 - Fix a GICv3 field decoding bug leading to memory over-allocation
 - Init GICv4 at boot time instead of lazy init
 - Fix interrupt masking on PJ4
 -----BEGIN PGP SIGNATURE-----
 
 iQJJBAABCgAzFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAlxaspYVHG1hcmMuenlu
 Z2llckBhcm0uY29tAAoJECPQ0LrRPXpDMS8QAIUNTdbpgtCc/3Lr4n1qHlzGCR1N
 n4FHYgpR1txcPcVyu92jLxEwnlzSw2zjexuqUNaUYVUKe6wzEAXpDba+dDhvLrW5
 JfT1RE7cDMWu34iKAorGg1sqAb3yl67d6Oi88abbNdv3zSa9EVyVBRp3eTWotNzg
 EAtVorirI41CZNirt3ZU0TRMX0wAc5g7HTq0AwBcQSsg0P6ZCyVqZU5w/JNsPzWH
 VIpYue8XlDNQ8SDJHRppHhyrghVHG0tpSHKo9I8cA9+4CK6CMd8OwZhdNsf2ISiL
 vcEOyuOQfIIyTry59F11eiwlMNa4nmsLlmzezOZUeb3NafxsqMmDsbjbOiDMIkzh
 WUt8BlWOSyy2sWlokX3Qu9CLlWxa+QydGokNdUufLYOAVQG+VDUD5lpaposUSNAe
 0thGXenlBO43NqTdldZu2L6E0Wb0M0CTuILOSg6M+6olTR5hsGJiUaV+3WLJHQi3
 gLzbAFu5JRzpJWqOPh/9pF5dQQIZ8Ls/C2oJlYt+CTiYA3je4pzWzEsmP2CBTYUy
 WZEq/mhcze0kFu2b7FnYNhvYkSPool4t5GajwoBYb34N2rnJa7KVYsBDAV0gUJ1t
 MZbTTzWUeWpsm31uZlvKiPSDHqpUPucZ9HtqBH8OKef6IZz4tMK7v9qx1yZ/C2ZL
 dSNbXHBEI7X44Ea2
 =Crvb
 -----END PGP SIGNATURE-----

Merge tag 'irqchip-5.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

Pull irqchip updates from Marc Zyngier:

- Another GICv3 ITS fix for devices sharing the same DevID
- Don't return invalid data on exhaustion of the GICv3 LPI pool
- Fix a GICv3 field decoding bug leading to memory over-allocation
- Init GICv4 at boot time instead of lazy init
- Fix interrupt masking on PJ4
2019-02-07 21:12:40 +01:00
Jan Kara
0803de7804 blktrace: Show requests without sector
Currently, blktrace will not show requests that don't have any data as
rq->__sector is initialized to -1 which is out of device range and thus
discarded by act_log_check(). This is most notably the case for cache
flush requests sent to the device. Fix the problem by making
blk_rq_trace_sector() return 0 for requests without initialized sector.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-02-07 12:57:17 -07:00
Vladimir Kondratiev
05dc6001af
mips: cm: reprime error cause
Accordingly to the documentation
---cut---
The GCR_ERROR_CAUSE.ERR_TYPE field and the GCR_ERROR_MULT.ERR_TYPE
fields can be cleared by either a reset or by writing the current
value of GCR_ERROR_CAUSE.ERR_TYPE to the
GCR_ERROR_CAUSE.ERR_TYPE register.
---cut---
Do exactly this. Original value of cm_error may be safely written back;
it clears error cause and keeps other bits untouched.

Fixes: 3885c2b463 ("MIPS: CM: Add support for reporting CM cache errors")
Signed-off-by: Vladimir Kondratiev <vladimir.kondratiev@linux.intel.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # v4.3+
2019-02-07 11:55:24 -08:00
Yifeng Li
8a96669d77
mips: loongson64: remove unreachable(), fix loongson_poweroff().
On my Yeeloong 8089, I noticed the machine fails to shutdown
properly, and often, the function mach_prepare_reboot() is
unexpectedly executed, thus the machine reboots instead. A
wait loop is needed to ensure the system is in a well-defined
state before going down.

In commit 997e93d4df ("MIPS: Hang more efficiently on
halt/powerdown/restart"), a general superset of the wait loop for all
platforms is already provided, so we don't need to implement our own.

This commit simply removes the unreachable() compiler marco after
mach_prepare_reboot(), thus allowing the execution of machine_hang().
My test shows that the machine is now able to shutdown successfully.

Please note that there are two different bugs preventing the machine
from shutting down, another work-in-progress commit is needed to
fix a lockup in cpufreq / i8259 driver, please read Reference, this
commit does not fix that bug.

Reference: https://lkml.org/lkml/2019/2/5/908
Signed-off-by: Yifeng Li <tomli@tomli.me>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Huacai Chen <chenhc@lemote.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-kernel@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: stable@vger.kernel.org # v4.17+
2019-02-07 11:50:14 -08:00
David S. Miller
ec7fd009e8 Merge branch 'ipv6-fixes'
Hangbin Liu says:

====================
fix two kernel panics when disabled IPv6 on boot up

When disabled IPv6 on boot up, since there is no ipv6 route tables, we should
not call rt6_lookup. Fix them by checking if we have inet6_dev pointer on
netdevice.

v2: Fix idev reference leak, declarations and code mixing as Stefano,
    Eric pointed. Since we only want to check if idev exists and not
    reference it, use __in6_dev_get() insteand of in6_dev_get().
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-02-07 10:48:42 -08:00