Commit Graph

890510 Commits

Author SHA1 Message Date
Linus Torvalds
b9b627a449 * Core changes:
- Make i3c_bus_set_mode() static
 
 * Driver changes:
   - Add a per-SoC data_hold_delay property to the Cadence driver
   - Fix formatting issues in the 'CADENCE I3C MASTER IP' MAINTAINERS entry
   - Use devm_platform_ioremap_resource() where appropriate
   - Adjust DesignWare reattach logic
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCAAdFiEEKmCqpbOU668PNA69Ze02AX4ItwAFAl4un/cACgkQZe02AX4I
 twAdDRAApE2zF/mFpKWsEeRMslBUIu5Ke1sPC/gWqQ0NcisW1jVvbFQxoXBLJ3f2
 z41cqEtwKVGXGZGWRvMeHZhlllZ+c9gO+fnCN4CLfjr03ECZ/JUpBmgpjjfFKKu9
 Y3DzXBWX73KFZbZWUDE+JsufhdJCIjr7ozk5PXniZ9nAfrFxG50pZYHtZeF3KoCl
 GLSA+emCRfQA08Kks7JGB1zPsC7gNluK2DkdU/cIRIBE8LL2VZTHpKBUPcAZOryA
 ju/0U3DGyMxrnjPoa134/EaUBpXhAuMLOxgS9nf+Jd8I1AMm4BeG5Bw2g30Bp50D
 BTq3FNZX2Ihb+tEeZQaVFRazTHyMXwVCg9v26NXI89BIpDPFI7dsFd2C3lO/DtCM
 kEUpk0oplxTYV6ryOgDaBpE9CsS6mxayaxVnKvB7dXobU6/F4Qu23n1BrjlxYrmK
 wuIwcGMLzvlbBjm6EVPvFlJXGmDB5ndwMVVdqEEyFVzAB5xonN4gKXsQb7vcOQTn
 fh7/zvN/isr6g9BwyDl5qmq94ibTBu7ruhgkl1xiSsTHYHp2UipeiOY6ixveJt4U
 9WPBZeDVpcz+k+5Y4BPSRnXAIA3N/GM1BwS9Ku1oE1FeoavG8ziLHkcTL7MHeGKp
 RUfvxA4k8PioHERX1aZIg88MYqRBp4PTVh/g4HPw4gTfBOvGnX8=
 =LbKo
 -----END PGP SIGNATURE-----

Merge tag 'i3c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux

Pull i3c updates from Boris Brezillon:
 "Core changes:

   - Make i3c_bus_set_mode() static

  Driver changes:

   - Add a per-SoC data_hold_delay property to the Cadence driver

   - Fix formatting issues in the 'CADENCE I3C MASTER IP' MAINTAINERS
     entry

   - Use devm_platform_ioremap_resource() where appropriate

   - Adjust DesignWare reattach logic"

* tag 'i3c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: dw: reattach device on first available location of address table
  i3c: master: cdns: convert to devm_platform_ioremap_resource
  i3c: master: dw: convert to devm_platform_ioremap_resource
  MAINTAINERS: fix style in CADENCE I3C MASTER IP entry
  i3c: master: make i3c_bus_set_mode static
  i3c: master: cdns: add data hold delay support
2020-01-27 10:28:43 -08:00
Linus Torvalds
067ba54c7a Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 microcode update from Borislav Petkov:
 "Another boring branch this time around: mark a stub function inline,
  by Valdis Kletnieks"

* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode/AMD: Make stub function static inline
2020-01-27 09:25:59 -08:00
Mark Brown
e4e4c2ff78
Merge branch 'regulator-5.6' into regulator-next 2020-01-27 17:24:38 +00:00
Saravanan Sekar
44e9b34464
dt-bindings: regulator: add document bindings for mpq7920
Add device tree binding information for mpq7920 regulator driver.
Example bindings for mpq7920 are added.

Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200123215338.11109-1-sravanhome@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-01-27 17:23:47 +00:00
Linus Torvalds
30f5a75640 Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS updates from Borislav Petkov:

 - Misc fixes to the MCE code all over the place, by Jan H. Schönherr.

 - Initial support for AMD F19h and other cleanups to amd64_edac, by
   Yazen Ghannam.

 - Other small cleanups.

* 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  EDAC/mce_amd: Make fam_ops static global
  EDAC/amd64: Drop some family checks for newer systems
  EDAC/amd64: Add family ops for Family 19h Models 00h-0Fh
  x86/amd_nb: Add Family 19h PCI IDs
  EDAC/mce_amd: Always load on SMCA systems
  x86/MCE/AMD, EDAC/mce_amd: Add new Load Store unit McaType
  x86/mce: Fix use of uninitialized MCE message string
  x86/mce: Fix mce=nobootlog
  x86/mce: Take action on UCNA/Deferred errors again
  x86/mce: Remove mce_inject_log() in favor of mce_log()
  x86/mce: Pass MCE message to mce_panic() on failed kernel recovery
  x86/mce/therm_throt: Mark throttle_active_work() as __maybe_unused
2020-01-27 09:19:35 -08:00
Linus Torvalds
b62061b82a A garden variety of small fixes all over the place.
-----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAl4uvKUACgkQEsHwGGHe
 VUoG5RAAoSdq9LvBPWTtJUMckxZ124hAqvtDOqvAbCnde3V2yICZLfOuGZSuWBy0
 +ED2Ebwnf6mxzB2vEEI1OQ0+LmmRXvc+UbI2z7SnC/4sLZnS7h9wDrxN41nR0dyB
 cMx0JB0ClyMW71WJo4Jbp9B+fiB4rBu/gmrXc0kC3L6ShmYvWzGdrPIV31qXPPYn
 zjqOn+tBENi7J+8omVsFg/KtAK9BTEk7FLuAz2mevLJzZGwycQBk/sigDHTuXJC2
 AACPmaQAqZgOYEOWID+F1USgD7x3yfYEZUBQWokqmDJDkN6agvcScQWoYh2PGobR
 wxJhGZR+Uq3NU0BsdoKlI4OCI/Hf+WYBAhpSdlu1/Wle3Wq4wGc91wisFtnpXU6s
 2VfiUtpf9WTROUeyHvhXcKgnjTwmRxSOBmaIhSYSL/aQ34AJaMmaeS8Vj1vpamrp
 1dotRIQKmjI8yDRs4JBfsJX3KtMjJ+u1qiz7SfwqBv1dqypSamTkvjpbPhItUrAz
 Hv9QHWQAOmCLBqWw3Jx2W9gwd7Z1gYmpvo9mqyUy81eF/BDNeJTi1zRkNL2jqElU
 gu6gaOheYr7UumA9LDsZUqh3cGgGii73pp2Fc1A2QvL9HeD++UVoXOlwjo8VEs1b
 +u+DRDKNy3OwgCLMGfK0zuWfvTRqgV+OnlPnBH2/2PnYpE9tawU=
 =fR3M
 -----END PGP SIGNATURE-----

Merge tag 'edac_for_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC updates from Borislav Petkov:
 "A totally boring branch this time around: a garden variety of small
  fixes all over the place"

* tag 'edac_for_5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/amd64: Do not warn when removing instances
  EDAC/sifive: Fix return value check in ecc_register()
  EDAC/aspeed: Remove unneeded semicolon
  EDAC: remove set but not used variable 'ecc_loc'
  EDAC: skx_common: downgrade message importance on missing PCI device
  EDAC/Kconfig: Fix Kconfig indentation
2020-01-27 09:16:22 -08:00
Linus Torvalds
35417d57ef hwmon updates for v5.6
core:
 - Add support for enable attributes to hwmon core
 - Add intrusion templates
 
 pmbus:
 - Support for Infineon Multi-phase xdpe122 family controllers
 - Support for Intel IMVP9 and AMD 6.25mV modes
 - Support for vid mode detection per page bases
 - Detect if chip is write protected
 - Support for MAX20730, MAX20734, MAX20743, MAX20796, UCD90320, TPS53688
 - Various improvements to ibm-cffps driver
 
 k10temp:
 - Support for additional temperature sensors as well as voltage and
   current telemetry for Zen CPUs
 
 w83627ehf:
 - Remove support for NCT6775, NCT6776 (they have their own driver)
 
 New drivers:
 - ADM1177
 - MAX31730
 - Driver for disk and solid state drives with temperature sensors
 
 Other:
 - pwm-fan: stop fan on shutdown
 -----BEGIN PGP SIGNATURE-----
 
 iQIzBAABCgAdFiEEiHPvMQj9QTOCiqgVyx8mb86fmYEFAl4s++oACgkQyx8mb86f
 mYFzzhAAjh2FQ2T6TPe+C+JA68ysLGsMCtlfGFWK3GS/pF0CUvr+/nA2FPwQ6ydX
 Sj+RzjS/CjgrAhabmUvpmRxJZUFFfu96LXCn6p4eaOnIqNMz2UIb+4xIZYMqn+CD
 kJH3dse7EOlWDk+gHyvkwFtOaye9xV/L9F4C7cKWwKdFYhQad3xA0eARHpNVCaA5
 BG33q+PVDx1gc/8C4JwLfqiF/IXExt9RV7akhoHMYHyJEpF4lD8X+/oTPjc/jbo7
 EfpIY6/0zBt3+TVMXRd7Kg1IcTDt8iePd7tVOFrL8ZIel+Elv/Fy7HyXm9dFC6zM
 r3b008XfVWSrk10ezOc7YOYKCv0mODuDzute8rzEA+LJSNIMRSorFzo3BezFex1L
 GZTZfThpeZXZ2pwu0BMkO8teYP1JpVaxgsE/PDKkgcpfGCloISoNft8DkPIdhB9K
 lf3iuPT+kX5h6/AMb6XD4PlA1bXb9Uj4FCS9KonbTKqEjwu6N2lE9kCA3Q7nvyaE
 PbEl/AF3DRGZXMAv/C6yJomsmOlUodolZEOa4tGXsTh1clSvgHOEllGtCLLTPkYS
 FOYmoReA54oz562e6WdhUtaMaS/O7pZRK9rwufng6qq+81VM1Ta5HcOSoK0kZrW4
 fs93B0TfmdP7szMr3HaFH1Xlh6eYGj/dYUabNuAfCKAKMTBdgmI=
 =rfbE
 -----END PGP SIGNATURE-----

Merge tag 'hwmon-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "core:
   - Add support for enable attributes to hwmon core
   - Add intrusion templates

  pmbus:
   - Support for Infineon Multi-phase xdpe122 family controllers
   - Support for Intel IMVP9 and AMD 6.25mV modes
   - Support for vid mode detection per page bases
   - Detect if chip is write protected
   - Support for MAX20730, MAX20734, MAX20743, MAX20796, UCD90320,
     TPS53688
   - Various improvements to ibm-cffps driver

  k10temp:
   - Support for additional temperature sensors as well as voltage and
     current telemetry for Zen CPUs

  w83627ehf:
   - Remove support for NCT6775, NCT6776 (they have their own driver)

  New drivers:
   - ADM1177
   - MAX31730
   - Driver for disk and solid state drives with temperature sensors

  Other:
   - pwm-fan: stop fan on shutdown"

* tag 'hwmon-for-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (35 commits)
  hwmon: (k10temp) Display up to eight sets of CCD temperatures
  hwmon: (k10temp) Add debugfs support
  hwmon: (k10temp) Don't show temperature limits on Ryzen (Zen) CPUs
  hwmon: (k10temp) Show core and SoC current and voltages on Ryzen CPUs
  hwmon: (k10temp) Report temperatures per CPU die
  hmon: (k10temp) Convert to use devm_hwmon_device_register_with_info
  hwmon: (k10temp) Use bitops
  hwmon: (pwm-fan) stop fan on shutdown
  MAINTAINERS: add entry for ADM1177 driver
  dt-binding: hwmon: Add documentation for ADM1177
  hwmon: (adm1177) Add ADM1177 Hot Swap Controller and Digital Power Monitor driver
  docs: hwmon: Include 'xdpe12284.rst' into docs
  hwmon: (pmbus) Add support for Infineon Multi-phase xdpe122 family controllers
  hwmon: (pmbus/tps53679) Extend device list supported by driver
  hwmon: (pmbus/core) Add support for Intel IMVP9 and AMD 6.25mV modes
  hwmon: (pmbus/core) Add support for vid mode detection per page bases
  hwmon: (pmbus/ibm-cffps) Prevent writing on_off_config with bad data
  hwmon: (w83627ehf) Remove set but not used variable 'fan4min'
  hwmon: Driver for disk and solid state drives with temperature sensors
  hwmon: (pmbus/ibm-cffps) Fix the LED behavior when turned off
  ...
2020-01-27 09:14:11 -08:00
Linus Torvalds
189fc98efe tpmdd updates for Linux v5.6
-----BEGIN PGP SIGNATURE-----
 
 iJYEABYIAD4WIQRE6pSOnaBC00OEHEIaerohdGur0gUCXigM1iAcamFya2tvLnNh
 a2tpbmVuQGxpbnV4LmludGVsLmNvbQAKCRAaerohdGur0nrTAP9OGkT7YNwl0HvV
 idEySFCf0tKZFn1+KOoDPphtcXBLdwD7BQQEZFWWy9Oxyp5Jg2sUYfFbCUkeG2mQ
 Kxay3IJaAA8=
 =PjUp
 -----END PGP SIGNATURE-----

Merge tag 'tpmdd-next-20200122' of git://git.infradead.org/users/jjs/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "This adds a new sysfs file for querying TPM major version, which can
  be used by the user space the TPM protocol used to communicate with
  the chip"

* tag 'tpmdd-next-20200122' of git://git.infradead.org/users/jjs/linux-tpmdd:
  tpm: Add tpm_version_major sysfs file
  tpm: Update mailing list contact information in sysfs-class-tpm
2020-01-27 09:12:13 -08:00
Linus Torvalds
f11ba7de15 m68k updates for v5.6
- Wire up clone3() syscall,
   - Defconfig updates.
 -----BEGIN PGP SIGNATURE-----
 
 iIsEABYIADMWIQQ9qaHoIs/1I4cXmEiKwlD9ZEnxcAUCXi6yzBUcZ2VlcnRAbGlu
 dXgtbTY4ay5vcmcACgkQisJQ/WRJ8XCzqQEA+ohCTeG4TGZV1V92b76RDl8POCQM
 PSxjBZJTgPc3e8YBAIjc13SRSnNLIawD0dNepvMM2Y2R7yJCxl9gf5yPU1kH
 =jcgr
 -----END PGP SIGNATURE-----

Merge tag 'm68k-for-v5.6-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - wire up clone3() syscall

 - defconfig updates

* tag 'm68k-for-v5.6-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: Implement copy_thread_tls()
  m68k: defconfig: Update defconfigs for v5.5-rc3
  m68k: Wire up clone3() syscall
2020-01-27 09:05:55 -08:00
Linus Torvalds
0238d3c753 arm64 updates for 5.6
- New architecture features
 	* Support for Armv8.5 E0PD, which benefits KASLR in the same way as
 	  KPTI but without the overhead. This allows KPTI to be disabled on
 	  CPUs that are not affected by Meltdown, even is KASLR is enabled.
 
 	* Initial support for the Armv8.5 RNG instructions, which claim to
 	  provide access to a high bandwidth, cryptographically secure hardware
 	  random number generator. As well as exposing these to userspace, we
 	  also use them as part of the KASLR seed and to seed the crng once
 	  all CPUs have come online.
 
 	* Advertise a bunch of new instructions to userspace, including support
 	  for Data Gathering Hint, Matrix Multiply and 16-bit floating point.
 
 - Kexec
 	* Cleanups in preparation for relocating with the MMU enabled
 	* Support for loading crash dump kernels with kexec_file_load()
 
 - Perf and PMU drivers
 	* Cleanups and non-critical fixes for a couple of system PMU drivers
 
 - FPU-less (aka broken) CPU support
 	* Considerable fixes to support CPUs without the FP/SIMD extensions,
 	  including their presence in heterogeneous systems. Good luck finding
 	  a 64-bit userspace that handles this.
 
 - Modern assembly function annotations
 	* Start migrating our use of ENTRY() and ENDPROC() over to the
 	  new-fangled SYM_{CODE,FUNC}_{START,END} macros, which are intended to
 	  aid debuggers
 
 - Kbuild
 	* Cleanup detection of LSE support in the assembler by introducing
 	  'as-instr'
 
 	* Remove compressed Image files when building clean targets
 
 - IP checksumming
 	* Implement optimised IPv4 checksumming routine when hardware offload
 	  is not in use. An IPv6 version is in the works, pending testing.
 
 - Hardware errata
 	* Work around Cortex-A55 erratum #1530923
 
 - Shadow call stack
 	* Work around some issues with Clang's integrated assembler not liking
 	  our perfectly reasonable assembly code
 
 	* Avoid allocating the X18 register, so that it can be used to hold the
 	  shadow call stack pointer in future
 
 - ACPI
 	* Fix ID count checking in IORT code. This may regress broken firmware
 	  that happened to work with the old implementation, in which case we'll
 	  have to revert it and try something else
 
 	* Fix DAIF corruption on return from GHES handler with pseudo-NMIs
 
 - Miscellaneous
 	* Whitelist some CPUs that are unaffected by Spectre-v2
 
 	* Reduce frequency of ASID rollover when KPTI is compiled in but
 	  inactive
 
 	* Reserve a couple of arch-specific PROT flags that are already used by
 	  Sparc and PowerPC and are planned for later use with BTI on arm64
 
 	* Preparatory cleanup of our entry assembly code in preparation for
 	  moving more of it into C later on
 
 	* Refactoring and cleanup
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCgAuFiEEPxTL6PPUbjXGY88ct6xw3ITBYzQFAl4oY+IQHHdpbGxAa2Vy
 bmVsLm9yZwAKCRC3rHDchMFjNNfRB/4p3vax0hqaOnLRvmJPRXF31B8oPlivnr2u
 6HCA9LkdU5IlrgaTNOJ/sQEqJAPOPCU7v49Ol0iYw0iKL1suUE7Ikui5VB6Uybqt
 YbfF5UNzfXAMs2A86TF/hzqhxw+W+lpnZX8NVTuQeAODfHEGUB1HhTLfRi9INsER
 wKEAuoZyuSUibxTFvji+DAq7nVRniXX7CM7tE385pxDisCMuu/7E5wOl+3EZYXWz
 DTGzTbHXuVFL+UFCANFEUlAtmr3dQvPFIqAwVl/CxjRJjJ7a+/G3cYLsHFPrQCjj
 qYX4kfhAeeBtqmHL7YFNWFwFs5WaT5UcQquFO665/+uCTWSJpORY
 =AIh/
 -----END PGP SIGNATURE-----

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

Pull arm64 updates from Will Deacon:
 "The changes are a real mixed bag this time around.

  The only scary looking one from the diffstat is the uapi change to
  asm-generic/mman-common.h, but this has been acked by Arnd and is
  actually just adding a pair of comments in an attempt to prevent
  allocation of some PROT values which tend to get used for
  arch-specific purposes. We'll be using them for Branch Target
  Identification (a CFI-like hardening feature), which is currently
  under review on the mailing list.

  New architecture features:

   - Support for Armv8.5 E0PD, which benefits KASLR in the same way as
     KPTI but without the overhead. This allows KPTI to be disabled on
     CPUs that are not affected by Meltdown, even is KASLR is enabled.

   - Initial support for the Armv8.5 RNG instructions, which claim to
     provide access to a high bandwidth, cryptographically secure
     hardware random number generator. As well as exposing these to
     userspace, we also use them as part of the KASLR seed and to seed
     the crng once all CPUs have come online.

   - Advertise a bunch of new instructions to userspace, including
     support for Data Gathering Hint, Matrix Multiply and 16-bit
     floating point.

  Kexec:

   - Cleanups in preparation for relocating with the MMU enabled

   - Support for loading crash dump kernels with kexec_file_load()

  Perf and PMU drivers:

   - Cleanups and non-critical fixes for a couple of system PMU drivers

  FPU-less (aka broken) CPU support:

   - Considerable fixes to support CPUs without the FP/SIMD extensions,
     including their presence in heterogeneous systems. Good luck
     finding a 64-bit userspace that handles this.

  Modern assembly function annotations:

   - Start migrating our use of ENTRY() and ENDPROC() over to the
     new-fangled SYM_{CODE,FUNC}_{START,END} macros, which are intended
     to aid debuggers

  Kbuild:

   - Cleanup detection of LSE support in the assembler by introducing
     'as-instr'

   - Remove compressed Image files when building clean targets

  IP checksumming:

   - Implement optimised IPv4 checksumming routine when hardware offload
     is not in use. An IPv6 version is in the works, pending testing.

  Hardware errata:

   - Work around Cortex-A55 erratum #1530923

  Shadow call stack:

   - Work around some issues with Clang's integrated assembler not
     liking our perfectly reasonable assembly code

   - Avoid allocating the X18 register, so that it can be used to hold
     the shadow call stack pointer in future

  ACPI:

   - Fix ID count checking in IORT code. This may regress broken
     firmware that happened to work with the old implementation, in
     which case we'll have to revert it and try something else

   - Fix DAIF corruption on return from GHES handler with pseudo-NMIs

  Miscellaneous:

   - Whitelist some CPUs that are unaffected by Spectre-v2

   - Reduce frequency of ASID rollover when KPTI is compiled in but
     inactive

   - Reserve a couple of arch-specific PROT flags that are already used
     by Sparc and PowerPC and are planned for later use with BTI on
     arm64

   - Preparatory cleanup of our entry assembly code in preparation for
     moving more of it into C later on

   - Refactoring and cleanup"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (73 commits)
  arm64: acpi: fix DAIF manipulation with pNMI
  arm64: kconfig: Fix alignment of E0PD help text
  arm64: Use v8.5-RNG entropy for KASLR seed
  arm64: Implement archrandom.h for ARMv8.5-RNG
  arm64: kbuild: remove compressed images on 'make ARCH=arm64 (dist)clean'
  arm64: entry: Avoid empty alternatives entries
  arm64: Kconfig: select HAVE_FUTEX_CMPXCHG
  arm64: csum: Fix pathological zero-length calls
  arm64: entry: cleanup sp_el0 manipulation
  arm64: entry: cleanup el0 svc handler naming
  arm64: entry: mark all entry code as notrace
  arm64: assembler: remove smp_dmb macro
  arm64: assembler: remove inherit_daif macro
  ACPI/IORT: Fix 'Number of IDs' handling in iort_id_map()
  mm: Reserve asm-generic prot flags 0x10 and 0x20 for arch use
  arm64: Use macros instead of hard-coded constants for MAIR_EL1
  arm64: Add KRYO{3,4}XX CPU cores to spectre-v2 safe list
  arm64: kernel: avoid x18 in __cpu_soft_restart
  arm64: kvm: stop treating register x18 as caller save
  arm64/lib: copy_page: avoid x18 register in assembler code
  ...
2020-01-27 08:58:19 -08:00
Jiri Kosina
fef684af39 Merge branch 'for-5.6/logitech' into for-linus
- voltage support for newer Logitech HID++ devices, from Pedro Vanzella.

- MX Master support improvements, from Adrian Freund and Mazin Rezk
2020-01-27 15:49:49 +01:00
Jiri Kosina
a09ac40e42 Merge branch 'for-5.6/hidraw' into for-linus
- support for uniq ioctl()
2020-01-27 15:49:30 +01:00
Rafael J. Wysocki
c102671af0 Merge branch 'pm-devfreq'
* pm-devfreq: (24 commits)
  PM / devfreq: Add debugfs support with devfreq_summary file
  PM / devfreq: exynos: Rename Exynos to lowercase
  PM / devfreq: imx8m-ddrc: Fix inconsistent IS_ERR and PTR_ERR
  PM / devfreq: exynos-bus: Add error log when fail to get devfreq-event
  PM / devfreq: exynos-bus: Disable devfreq-event device when fails
  PM / devfreq: rk3399_dmc: Disable devfreq-event device when fails
  PM / devfreq: imx8m-ddrc: Remove unused defines
  PM / devfreq: exynos-bus: Reduce goto statements and remove unused headers
  PM / devfreq: rk3399_dmc: Add COMPILE_TEST and HAVE_ARM_SMCCC dependency
  PM / devfreq: rockchip-dfi: Convert to devm_platform_ioremap_resource
  PM / devfreq: rk3399_dmc: Add missing of_node_put()
  PM / devfreq: rockchip-dfi: Add missing of_node_put()
  PM / devfreq: Fix multiple kernel-doc warnings
  PM / devfreq: exynos-bus: Extract exynos_bus_profile_init_passive()
  PM / devfreq: exynos-bus: Extract exynos_bus_profile_init()
  PM / devfreq: Move declaration of DEVICE_ATTR_RW(min_freq)
  PM / devfreq: Move statistics to separate struct devfreq_stats
  PM / devfreq: Add clearing transitions stats
  PM / devfreq: Change time stats to 64-bit
  PM / devfreq: Add new name attribute for sysfs
  ...
2020-01-27 11:30:38 +01:00
Rafael J. Wysocki
c95d9c140c Merge branches 'pm-core', 'powercap', 'pm-opp', 'pm-avs' and 'pm-misc'
* pm-core:
  PM-runtime: add tracepoints for usage_count changes

* powercap:
  powercap/intel_rapl: add support for JasperLake
  x86/cpu: Add Jasper Lake to Intel family
  powercap/intel_rapl: add support for TigerLake Mobile

* pm-opp:
  opp: Replace list_kref with a local counter
  opp: Free static OPPs on errors while adding them

* pm-avs:
  power: avs: qcom-cpr: remove duplicated include from qcom-cpr.c
  power: avs: fix uninitialized error return on failed cpr_read_fuse_uV() call
  power: avs: qcom-cpr: make cpr_get_opp_hz_for_req() static
  power: avs: qcom-cpr: remove set but unused variable
  power: avs: qcom-cpr: make sure that regmap is available
  power: avs: qcom-cpr: fix unsigned expression compared with zero
  power: avs: qcom-cpr: fix invalid printk specifier in debug print
  power: avs: Add support for CPR (Core Power Reduction)
  dt-bindings: power: avs: Add support for CPR (Core Power Reduction)

* pm-misc:
  mailmap: Add entry for <rjw@sisk.pl>
2020-01-27 11:30:13 +01:00
Rafael J. Wysocki
245224d1cb Merge branches 'pm-cpufreq' and 'pm-sleep'
* pm-cpufreq:
  cpufreq: loongson2_cpufreq: adjust cpufreq uses of LOONGSON_CHIPCFG
  cpufreq: brcmstb-avs: fix imbalance of cpufreq policy refcount
  cpufreq: intel_pstate: fix spelling mistake: "Whethet" -> "Whether"
  cpufreq: s3c: fix unbalances of cpufreq policy refcount
  cpufreq: imx-cpufreq-dt: Add i.MX8MP support
  cpufreq: Use imx-cpufreq-dt for i.MX8MP's speed grading
  cpufreq: tegra186: convert to devm_platform_ioremap_resource
  cpufreq: kirkwood: convert to devm_platform_ioremap_resource
  cpufreq: CPPC: put ACPI table after using it
  cpufreq : CPPC: Break out if HiSilicon CPPC workaround is matched

* pm-sleep:
  PM: suspend: Add sysfs attribute to control the "sync on suspend" behavior
  PM: hibernate: fix spelling mistake "shapshot" -> "snapshot"
  PM: hibernate: Add more logging on hibernation failure
  PM: hibernate: improve arithmetic division in preallocate_highmem_fraction()
  PM: wakeup: Show statistics for deleted wakeup sources again
  PM: sleep: Switch to rtc_time64_to_tm()/rtc_tm_to_time64()
2020-01-27 11:29:09 +01:00
Rafael J. Wysocki
5b82ba70de Merge branch 'pm-cpuidle'
* pm-cpuidle: (27 commits)
  intel_idle: Clean up irtl_2_usec()
  intel_idle: Move 3 functions closer to their callers
  intel_idle: Annotate initialization code and data structures
  intel_idle: Move and clean up intel_idle_cpuidle_devices_uninit()
  intel_idle: Rearrange intel_idle_cpuidle_driver_init()
  intel_idle: Clean up NULL pointer check in intel_idle_init()
  intel_idle: Fold intel_idle_probe() into intel_idle_init()
  intel_idle: Eliminate __setup_broadcast_timer()
  cpuidle: fix cpuidle_find_deepest_state() kerneldoc warnings
  cpuidle: sysfs: fix warnings when compiling with W=1
  cpuidle: coupled: fix warnings when compiling with W=1
  Documentation: admin-guide: PM: Add intel_idle document
  cpuidle: arm: Enable compile testing for some of drivers
  cpuidle: Drop unused cpuidle_driver_ref/unref() functions
  intel_idle: Use ACPI _CST on server systems
  intel_idle: Add module parameter to prevent ACPI _CST from being used
  intel_idle: Allow ACPI _CST to be used for selected known processors
  cpuidle: Allow idle states to be disabled by default
  intel_idle: Use ACPI _CST for processor models without C-state tables
  intel_idle: Refactor intel_idle_cpuidle_driver_init()
  ...
2020-01-27 11:28:57 +01:00
Rafael J. Wysocki
ca11abf113 Merge branches 'acpi-tables', 'acpi-button', 'acpi-ec', 'acpi-doc' and 'acpi-tools'
* acpi-tables:
  ACPI: PPTT: Consistently use unsigned int as parameter type

* acpi-button:
  ACPI: button: Add DMI quirk for Razer Blade Stealth 13 late 2019 lid switch

* acpi-ec:
  ACPI: EC: Reference count query handlers under lock

* acpi-doc:
  docs: firmware-guide: ACPI: Replace dma_request_slave_channel() with dma_request_chan()

* acpi-tools:
  tools/power/acpi: fix compilation error
2020-01-27 10:58:05 +01:00
Rafael J. Wysocki
3dd855147f Merge branches 'acpi-battery', 'acpi-video', 'acpi-fan' and 'acpi-drivers'
* acpi-battery:
  ACPI / battery: Deal better with neither design nor full capacity not being reported
  ACPI / battery: Use design-cap for capacity calculations if full-cap is not available
  ACPI / battery: Deal with design or full capacity being reported as -1

* acpi-video:
  ACPI: video: Do not export a non working backlight interface on MSI MS-7721 boards
  ACPI: video: Use native backlight on Lenovo E41-25/45
  ACPI: video: fix typo in comment

* acpi-fan:
  ACPI: fan: Expose fan performance state information

* acpi-drivers:
  thermal: int340x_thermal: Add Tiger Lake ACPI device IDs
  platform/x86: intel-hid: Add Tiger Lake ACPI device ID
  ACPI: fan: Add Tiger Lake ACPI device ID
  ACPI: DPTF: Add Tiger Lake ACPI device IDs
2020-01-27 10:57:09 +01:00
Rafael J. Wysocki
ff7a672f83 Merge branch 'acpica'
* acpica:
  ACPICA: Update version to 20200110
  ACPICA: All acpica: Update copyrights to 2020 Including tool signons.
  ACPICA: Update the list of maintainers
  ACPICA: Update version to 20191213
  ACPICA: Dispatcher: always generate buffer objects for ASL create_field() operator
  ACPICA: acpisrc: add unix line ending support for non-windows build
  ACPICA: Disassembler: create buffer fields in ACPI_PARSE_LOAD_PASS1
  ACPICA: debugger: fix spelling mistake "adress" -> "address"
2020-01-27 10:56:49 +01:00
Rafael J. Wysocki
c267930f3f Merge branch 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull operating performance points (OPP) framework updates for v5.6
from Viresh Kumar:

"This  contains a single patchset to fix reference counting of OPP
 table structures."

* 'opp/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  opp: Replace list_kref with a local counter
  opp: Free static OPPs on errors while adding them
2020-01-27 10:38:51 +01:00
Rafael J. Wysocki
0a9db0a0e3 Merge branch 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm
Pull cpufreq material for v5.6 from Viresh Kumar:

"This contains:

- Update to imx cpufreq driver to add support for i.MX8MP platform.

- Blacklists few NVIDIA SoCs from cpufreq-dt-platdev layer.

- Convertion of few platform drivers to use
  devm_platform_ioremap_resource().

- Fixed refcount imbalance in few drivers."

* 'cpufreq/arm/linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm:
  cpufreq: brcmstb-avs: fix imbalance of cpufreq policy refcount
  cpufreq: s3c: fix unbalances of cpufreq policy refcount
  cpufreq: imx-cpufreq-dt: Add i.MX8MP support
  cpufreq: Use imx-cpufreq-dt for i.MX8MP's speed grading
  cpufreq: tegra186: convert to devm_platform_ioremap_resource
  cpufreq: kirkwood: convert to devm_platform_ioremap_resource
2020-01-27 10:31:11 +01:00
Vincent Whitchurch
f1f27ad745 CIFS: Fix task struct use-after-free on reconnect
The task which created the MID may be gone by the time cifsd attempts to
call the callbacks on MIDs from cifs_reconnect().

This leads to a use-after-free of the task struct in cifs_wake_up_task:

 ==================================================================
 BUG: KASAN: use-after-free in __lock_acquire+0x31a0/0x3270
 Read of size 8 at addr ffff8880103e3a68 by task cifsd/630

 CPU: 0 PID: 630 Comm: cifsd Not tainted 5.5.0-rc6+ #119
 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.10.2-1 04/01/2014
 Call Trace:
  dump_stack+0x8e/0xcb
  print_address_description.constprop.5+0x1d3/0x3c0
  ? __lock_acquire+0x31a0/0x3270
  __kasan_report+0x152/0x1aa
  ? __lock_acquire+0x31a0/0x3270
  ? __lock_acquire+0x31a0/0x3270
  kasan_report+0xe/0x20
  __lock_acquire+0x31a0/0x3270
  ? __wake_up_common+0x1dc/0x630
  ? _raw_spin_unlock_irqrestore+0x4c/0x60
  ? mark_held_locks+0xf0/0xf0
  ? _raw_spin_unlock_irqrestore+0x39/0x60
  ? __wake_up_common_lock+0xd5/0x130
  ? __wake_up_common+0x630/0x630
  lock_acquire+0x13f/0x330
  ? try_to_wake_up+0xa3/0x19e0
  _raw_spin_lock_irqsave+0x38/0x50
  ? try_to_wake_up+0xa3/0x19e0
  try_to_wake_up+0xa3/0x19e0
  ? cifs_compound_callback+0x178/0x210
  ? set_cpus_allowed_ptr+0x10/0x10
  cifs_reconnect+0xa1c/0x15d0
  ? generic_ip_connect+0x1860/0x1860
  ? rwlock_bug.part.0+0x90/0x90
  cifs_readv_from_socket+0x479/0x690
  cifs_read_from_socket+0x9d/0xe0
  ? cifs_readv_from_socket+0x690/0x690
  ? mempool_resize+0x690/0x690
  ? rwlock_bug.part.0+0x90/0x90
  ? memset+0x1f/0x40
  ? allocate_buffers+0xff/0x340
  cifs_demultiplex_thread+0x388/0x2a50
  ? cifs_handle_standard+0x610/0x610
  ? rcu_read_lock_held_common+0x120/0x120
  ? mark_lock+0x11b/0xc00
  ? __lock_acquire+0x14ed/0x3270
  ? __kthread_parkme+0x78/0x100
  ? lockdep_hardirqs_on+0x3e8/0x560
  ? lock_downgrade+0x6a0/0x6a0
  ? lockdep_hardirqs_on+0x3e8/0x560
  ? _raw_spin_unlock_irqrestore+0x39/0x60
  ? cifs_handle_standard+0x610/0x610
  kthread+0x2bb/0x3a0
  ? kthread_create_worker_on_cpu+0xc0/0xc0
  ret_from_fork+0x3a/0x50

 Allocated by task 649:
  save_stack+0x19/0x70
  __kasan_kmalloc.constprop.5+0xa6/0xf0
  kmem_cache_alloc+0x107/0x320
  copy_process+0x17bc/0x5370
  _do_fork+0x103/0xbf0
  __x64_sys_clone+0x168/0x1e0
  do_syscall_64+0x9b/0xec0
  entry_SYSCALL_64_after_hwframe+0x49/0xbe

 Freed by task 0:
  save_stack+0x19/0x70
  __kasan_slab_free+0x11d/0x160
  kmem_cache_free+0xb5/0x3d0
  rcu_core+0x52f/0x1230
  __do_softirq+0x24d/0x962

 The buggy address belongs to the object at ffff8880103e32c0
  which belongs to the cache task_struct of size 6016
 The buggy address is located 1960 bytes inside of
  6016-byte region [ffff8880103e32c0, ffff8880103e4a40)
 The buggy address belongs to the page:
 page:ffffea000040f800 refcount:1 mapcount:0 mapping:ffff8880108da5c0
 index:0xffff8880103e4c00 compound_mapcount: 0
 raw: 4000000000010200 ffffea00001f2208 ffffea00001e3408 ffff8880108da5c0
 raw: ffff8880103e4c00 0000000000050003 00000001ffffffff 0000000000000000
 page dumped because: kasan: bad access detected

 Memory state around the buggy address:
  ffff8880103e3900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  ffff8880103e3980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 >ffff8880103e3a00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                           ^
  ffff8880103e3a80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
  ffff8880103e3b00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ==================================================================

This can be reliably reproduced by adding the below delay to
cifs_reconnect(), running find(1) on the mount, restarting the samba
server while find is running, and killing find during the delay:

  	spin_unlock(&GlobalMid_Lock);
  	mutex_unlock(&server->srv_mutex);

 +	msleep(10000);
 +
  	cifs_dbg(FYI, "%s: issuing mid callbacks\n", __func__);
  	list_for_each_safe(tmp, tmp2, &retry_list) {
  		mid_entry = list_entry(tmp, struct mid_q_entry, qhead);

Fix this by holding a reference to the task struct until the MID is
freed.

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2020-01-26 19:24:17 -06:00
Chen Zhou
050d2a8b69 cifs: use PTR_ERR_OR_ZERO() to simplify code
PTR_ERR_OR_ZERO contains if(IS_ERR(...)) + PTR_ERR, just use
PTR_ERR_OR_ZERO directly.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
2020-01-26 19:24:17 -06:00
Ronnie Sahlberg
8bd0d70144 cifs: add support for fallocate mode 0 for non-sparse files
RHBZ 1336264

When we extend a file we must also force the size to be updated.

This fixes an issue with holetest in xfs-tests which performs the following
sequence :
1, create a new file
2, use fallocate mode==0 to populate the file
3, mmap the file
4, touch each page by reading the mmapped region.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:17 -06:00
Ronnie Sahlberg
fe12926863 cifs: fix NULL dereference in match_prepath
RHBZ: 1760879

Fix an oops in match_prepath() by making sure that the prepath string is not
NULL before we pass it into strcmp().

This is similar to other checks we make for example in cifs_root_iget()

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:17 -06:00
Steve French
643fbceef4 smb3: fix default permissions on new files when mounting with modefromsid
When mounting with "modefromsid" mount parm most servers will require
that some default permissions are given to users in the ACL on newly
created files, files created with the new 'sd context' - when passing in
an sd context on create, permissions are not inherited from the parent
directory, so in addition to the ACE with the special SID which contains
the mode, we also must pass in an ACE allowing users to access the file
(GENERIC_ALL for authenticated users seemed like a reasonable default,
although later we could allow a mount option or config switch to make
it GENERIC_ALL for EVERYONE special sid).

CC: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-By: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2020-01-26 19:24:17 -06:00
Boris Protopopov
438471b679 CIFS: Add support for setting owner info, dos attributes, and create time
This is needed for backup/restore scenarios among others.

Add extended attribute "system.cifs_ntsd" (and alias "system.smb3_ntsd")
to allow for setting owner and DACL in the security descriptor. This is in
addition to the existing "system.cifs_acl" and "system.smb3_acl" attributes
that allow for setting DACL only. Add support for setting creation time and
dos attributes using set_file_info() calls to complement the existing
support for getting these attributes via query_path_info() calls.

Signed-off-by: Boris Protopopov <bprotopopov@hotmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:17 -06:00
YueHaibing
c4985c3d99 cifs: remove set but not used variable 'server'
fs/cifs/smb2pdu.c: In function 'SMB2_query_directory':
fs/cifs/smb2pdu.c:4444:26: warning:
 variable 'server' set but not used [-Wunused-but-set-variable]
  struct TCP_Server_Info *server;

It is not used, so remove it.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:17 -06:00
Paulo Alcantara (SUSE)
0a5a98863c cifs: Fix memory allocation in __smb2_handle_cancelled_cmd()
__smb2_handle_cancelled_cmd() is called under a spin lock held in
cifs_mid_q_entry_release(), so make its memory allocation GFP_ATOMIC.

This issue was observed when running xfstests generic/028:

[ 1722.589204] CIFS VFS: \\192.168.30.26 Cancelling wait for mid 72064 cmd: 5
[ 1722.590687] CIFS VFS: \\192.168.30.26 Cancelling wait for mid 72065 cmd: 17
[ 1722.593529] CIFS VFS: \\192.168.30.26 Cancelling wait for mid 72066 cmd: 6
[ 1723.039014] BUG: sleeping function called from invalid context at mm/slab.h:565
[ 1723.040710] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 30877, name: cifsd
[ 1723.045098] CPU: 3 PID: 30877 Comm: cifsd Not tainted 5.5.0-rc4+ #313
[ 1723.046256] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba527-rebuilt.opensuse.org 04/01/2014
[ 1723.048221] Call Trace:
[ 1723.048689]  dump_stack+0x97/0xe0
[ 1723.049268]  ___might_sleep.cold+0xd1/0xe1
[ 1723.050069]  kmem_cache_alloc_trace+0x204/0x2b0
[ 1723.051051]  __smb2_handle_cancelled_cmd+0x40/0x140 [cifs]
[ 1723.052137]  smb2_handle_cancelled_mid+0xf6/0x120 [cifs]
[ 1723.053247]  cifs_mid_q_entry_release+0x44d/0x630 [cifs]
[ 1723.054351]  ? cifs_reconnect+0x26a/0x1620 [cifs]
[ 1723.055325]  cifs_demultiplex_thread+0xad4/0x14a0 [cifs]
[ 1723.056458]  ? cifs_handle_standard+0x2c0/0x2c0 [cifs]
[ 1723.057365]  ? kvm_sched_clock_read+0x14/0x30
[ 1723.058197]  ? sched_clock+0x5/0x10
[ 1723.058838]  ? sched_clock_cpu+0x18/0x110
[ 1723.059629]  ? lockdep_hardirqs_on+0x17d/0x250
[ 1723.060456]  kthread+0x1ab/0x200
[ 1723.061149]  ? cifs_handle_standard+0x2c0/0x2c0 [cifs]
[ 1723.062078]  ? kthread_create_on_node+0xd0/0xd0
[ 1723.062897]  ret_from_fork+0x3a/0x50

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Fixes: 9150c3adbf ("CIFS: Close open handle after interrupted close")
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2020-01-26 19:24:17 -06:00
Paulo Alcantara (SUSE)
5739375ee4 cifs: Fix mount options set in automount
Starting from 4a367dc044, we must set the mount options based on the
DFS full path rather than the resolved target, that is, cifs_mount()
will be responsible for resolving the DFS link (cached) as well as
performing failover to any other targets in the referral.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reported-by: Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com>
Fixes: 4a367dc044 ("cifs: Add support for failover in cifs_mount()")
Link: https://lore.kernel.org/linux-cifs/39643d7d-2abb-14d3-ced6-c394fab9a777@prodrive-technologies.com
Tested-by: Martijn de Gouw <martijn.de.gouw@prodrive-technologies.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Steve French
463a7b457c cifs: fix unitialized variable poential problem with network I/O cache lock patch
static analysis with Coverity detected an issue with the following
commit:

 Author: Paulo Alcantara (SUSE) <pc@cjr.nz>
 Date:   Wed Dec 4 17:38:03 2019 -0300

    cifs: Avoid doing network I/O while holding cache lock

Addresses-Coverity: ("Uninitialized pointer read")
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
YueHaibing
eecfc57130 cifs: Fix return value in __update_cache_entry
copy_ref_data() may return error, it should be
returned to upstream caller.

Fixes: 03535b72873b ("cifs: Avoid doing network I/O while holding cache lock")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Paulo Alcantara (SUSE)
742d8de018 cifs: Avoid doing network I/O while holding cache lock
When creating or updating a cache entry, we need to get an DFS
referral (get_dfs_referral), so avoid holding any locks during such
network operation.

To prevent that, do the following:
* change cache hashtable sync method from RCU sync to a read/write
  lock.
* use GFP_ATOMIC in memory allocations.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Paulo Alcantara (SUSE)
06d57378bc cifs: Fix potential deadlock when updating vol in cifs_reconnect()
We can't acquire volume lock while refreshing the DFS cache because
cifs_reconnect() may call dfs_cache_update_vol() while we are walking
through the volume list.

To prevent that, make vol_info refcounted, create a temp list with all
volumes eligible for refreshing, and then use it without any locks
held.

Besides, replace vol_lock with a spinlock and protect cache_ttl from
concurrent accesses or changes.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Paulo Alcantara (SUSE)
ff2f7fc082 cifs: Merge is_path_valid() into get_normalized_path()
Just do the trivial path validation in get_normalized_path().

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Paulo Alcantara (SUSE)
345c1a4a9e cifs: Introduce helpers for finding TCP connection
Add helpers for finding TCP connections that are good candidates for
being used by DFS refresh worker.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Paulo Alcantara (SUSE)
199c6bdfb0 cifs: Get rid of kstrdup_const()'d paths
The DFS cache API is mostly used with heap allocated strings.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Paulo Alcantara (SUSE)
185352ae61 cifs: Clean up DFS referral cache
Do some renaming and code cleanup.

No functional changes.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
David Howells
6629400a22 cifs: Don't use iov_iter::type directly
Don't use iov_iter::type directly, but rather use the new accessor
functions that have been added.  This allows the .type field to be split
and rearranged without the need to update the filesystems.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Ronnie Sahlberg
731b82bb17 cifs: set correct max-buffer-size for smb2_ioctl_init()
Fix two places where we need to adjust down the max response size for
ioctl when it is used together with compounding.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
CC: Stable <stable@vger.kernel.org>
2020-01-26 19:24:16 -06:00
Ronnie Sahlberg
37478608f0 cifs: use compounding for open and first query-dir for readdir()
Combine the initial SMB2_Open and the first SMB2_Query_Directory in a compound.
This shaves one round-trip of each directory listing, changing it from 4 to 3
for small directories.

Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2020-01-26 19:24:16 -06:00
Ronnie Sahlberg
af08f9e79c cifs: create a helper function to parse the query-directory response buffer
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2020-01-26 19:24:16 -06:00
Ronnie Sahlberg
0a17799cc0 cifs: prepare SMB2_query_directory to be used with compounding
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2020-01-26 19:24:16 -06:00
zhengbin
01d1bd76a1 fs/cifs/cifssmb.c: use true,false for bool variable
Fixes coccicheck warning:

fs/cifs/cifssmb.c:4622:3-22: WARNING: Assignment of 0/1 to bool variable
fs/cifs/cifssmb.c:4756:3-22: WARNING: Assignment of 0/1 to bool variable

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
zhengbin
720aec0126 fs/cifs/smb2ops.c: use true,false for bool variable
Fixes coccicheck warning:

fs/cifs/smb2ops.c:807:2-36: WARNING: Assignment of 0/1 to bool variable

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: zhengbin <zhengbin13@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-01-26 19:24:16 -06:00
Linus Torvalds
d5226fa6db Linux 5.5 2020-01-26 16:23:03 -08:00
Linus Torvalds
5cf9ad0e6b io_uring-5.5-2020-01-26
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl4t79kQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpjrZD/9l31+WrZhBJf4EDZRntGFdJUAxVe3rZw2Z
 k45P7QezZwc4+mY7WeIlV4rgsHqhzPwTZP53PVmgeGw6vG6kjWllBSM5hzS+lfFC
 q3mfJLLva7YckLsf6K1vOfNw9Dny26DuENHaDGPejSr2LYnRIHejBJuqiHJZigyl
 8y8rbmNdWMS5/qOlGfNDfAII1z13Up30Tt4BXgX2aGITTjvEquirzRs5HrB9e2ci
 vHX38uXMJ6DqQJwPDq/er8GXVsVkqd10BByh3KESxgjrQ9c+2BExwdaOtkMdbayx
 UM3mu+49Xo/LDR0NHpJBQTeAhhl+wVZhfpyGZzng6TOgnCN/F5NOB18tmC5g8fHx
 vTWpBieTujVFLygwgMIoY5Qwo0Q1bYJUi3VydWm956YujhgS76UfeXC8N9Prk7XI
 UDnDqAjY7gTVn0EewYKa5Sd//6TqQ+WgwB8LtCiTqLOP1kIiX+Y/rXG8PrdNMskh
 zpWJ/lPiTzWSn40NbU+yK09S5zu6fhqlXhjVqPlHLIOreOMD3PwOMxWkmq7MIA6j
 /vEK9Of0cHgdaYEJfIu+kqDkoy6Tcde3iwpV+ZluexLdTE/FF5qWIG+a8phyCLz2
 KXwgyvx811T7mihlLxuwvAlc//61p9X1XsbusYu/wK/NIbu0lBZx0eHkZWGlE+ko
 tL0Tdx7cCQ==
 =5jvb
 -----END PGP SIGNATURE-----

Merge tag 'io_uring-5.5-2020-01-26' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Fix for two regressions in this cycle, both reported by the postgresql
  use case.

  One removes the added restriction on who can submit IO, making it
  possible for rings shared across forks to do so. The other fixes an
  issue for the same kind of use case, where one exiting process would
  cancel all IO"

* tag 'io_uring-5.5-2020-01-26' of git://git.kernel.dk/linux-block:
  io_uring: don't cancel all work on process exit
  Revert "io_uring: only allow submit from owning task"
2020-01-26 12:23:04 -08:00
Linus Torvalds
9dbca16087 block-5.5-2020-01-26
-----BEGIN PGP SIGNATURE-----
 
 iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl4tzGkQHGF4Ym9lQGtl
 cm5lbC5kawAKCRD301j7KXHgpm74EADLe6y9VAmdDLilp6sW0sWRlx/Rdzy633hm
 FdhsTZ+v30BaF57Zn5+FBt1LOeC8IhQdCehxb32DV/xbX/JFZP8/X1XwjEtgFmpY
 C81hlZdqlTPNrk1H8SvgJLbgr+Gr5wtRQSVnkxt44mX+9KwLFUcUz/c9tjkl4pK+
 D5e7dxvZVnbrRxz+E3Oh7mruw2+dQ9Cp1QTSnxp1xhgaCH04nzM7/KVMz8ABL+uF
 e2ub0kH3/vNdoj8Hy0P7fNH1dRxUTDM+LfLMmTOGNXbNWFZ8bPaFc9OVkcqw/5O+
 QorCM9QcC55cwANoNZW4OUgxV6eXzr4+MBU0EhD5U7S+bS9yPUFxDJ0+Nwo7H1i2
 cgUiLyvNBRAejdxB5n1AjiGVYS4Gmh78Dcy6UBMOOK9XP3XVxbl04EOpKM5h/Bgt
 oByIMgsfUGhAk5Uhvq08WwIIZst6I0zNrAzvvItX3FCXPjmRKZKTbiENm2J1OBn0
 Jkr8j4nSLWsQe765Ms4acMOFbsxmKmFtFHTrRZllMJ+AxAhlxr1NPSna5mu2WEq9
 moZla+4F46/pXer/Xd2YpELXKHzTgXqsMkhmvoSS1Mt4rs2oeUqI5wIgzpU3g6xS
 FsOemcbrMcXEoNIh1jyCwNOfUwFWceR9E39E3pmxTqTeIALhXhBe3/SbQLolI4GJ
 XqHTzi1SdQ==
 =TxAC
 -----END PGP SIGNATURE-----

Merge tag 'block-5.5-2020-01-26' of git://git.kernel.dk/linux-block

Pull block fix from Jens Axboe:
 "Unfortunately this weekend we had a few last minute reports, one was
  for block.

  The partition disable for zoned devices was overly restrictive, it can
  work (and be supported) just fine for host-aware variants.

  Here's a fix ensuring that's the case so we don't break existing users
  of that"

* tag 'block-5.5-2020-01-26' of git://git.kernel.dk/linux-block:
  block: allow partitions on host aware zone devices
2020-01-26 12:12:36 -08:00
Linus Torvalds
54343d9518 SCSI fixes on 20200126
Two last minute fixes, both in drivers.  The fnic one is a highly
 unlikely condition, but the RDMA one is a recently introduced
 regression that causes a kernel warning to trigger in every RDMA
 logon, which would be unsightly if it got into the final release.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
 -----BEGIN PGP SIGNATURE-----
 
 iJsEABMIAEQWIQTnYEDbdso9F2cI+arnQslM7pishQUCXi3VRyYcamFtZXMuYm90
 dG9tbGV5QGhhbnNlbnBhcnRuZXJzaGlwLmNvbQAKCRDnQslM7pishbrpAP9I/pEp
 TWu/QkqFFrmuYbzuxtRML7X2T7+B96J/CRtQvQD3TAIW0gvw49Uj25yEwTRnVzCs
 1A+eELAahzBPW+rRBw==
 =C3yx
 -----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:
 "Two last minute fixes, both in drivers.

  The fnic one is a highly unlikely condition, but the RDMA one is a
  recently introduced regression that causes a kernel warning to trigger
  in every RDMA logon, which would be unsightly if it got into the final
  release"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: RDMA/isert: Fix a recently introduced regression related to logout
  scsi: fnic: do not queue commands during fwreset
2020-01-26 10:39:09 -08:00
Linus Torvalds
b1b298914f Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fix from Al Viro:
 "Fix a use-after-free in do_last() handling of sysctl_protected_...
  checks.

  The use-after-free normally doesn't happen there, but race with
  rename() and it becomes possible"

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  do_last(): fetch directory ->i_mode and ->i_uid before it's too late
2020-01-26 10:33:48 -08:00