Commit graph

966659 commits

Author SHA1 Message Date
Linus Torvalds
3ad11d7ac8 block-5.10-2020-10-12
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Merge tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block

Pull block updates from Jens Axboe:

 - Series of merge handling cleanups (Baolin, Christoph)

 - Series of blk-throttle fixes and cleanups (Baolin)

 - Series cleaning up BDI, seperating the block device from the
   backing_dev_info (Christoph)

 - Removal of bdget() as a generic API (Christoph)

 - Removal of blkdev_get() as a generic API (Christoph)

 - Cleanup of is-partition checks (Christoph)

 - Series reworking disk revalidation (Christoph)

 - Series cleaning up bio flags (Christoph)

 - bio crypt fixes (Eric)

 - IO stats inflight tweak (Gabriel)

 - blk-mq tags fixes (Hannes)

 - Buffer invalidation fixes (Jan)

 - Allow soft limits for zone append (Johannes)

 - Shared tag set improvements (John, Kashyap)

 - Allow IOPRIO_CLASS_RT for CAP_SYS_NICE (Khazhismel)

 - DM no-wait support (Mike, Konstantin)

 - Request allocation improvements (Ming)

 - Allow md/dm/bcache to use IO stat helpers (Song)

 - Series improving blk-iocost (Tejun)

 - Various cleanups (Geert, Damien, Danny, Julia, Tetsuo, Tian, Wang,
   Xianting, Yang, Yufen, yangerkun)

* tag 'block-5.10-2020-10-12' of git://git.kernel.dk/linux-block: (191 commits)
  block: fix uapi blkzoned.h comments
  blk-mq: move cancel of hctx->run_work to the front of blk_exit_queue
  blk-mq: get rid of the dead flush handle code path
  block: get rid of unnecessary local variable
  block: fix comment and add lockdep assert
  blk-mq: use helper function to test hw stopped
  block: use helper function to test queue register
  block: remove redundant mq check
  block: invoke blk_mq_exit_sched no matter whether have .exit_sched
  percpu_ref: don't refer to ref->data if it isn't allocated
  block: ratelimit handle_bad_sector() message
  blk-throttle: Re-use the throtl_set_slice_end()
  blk-throttle: Open code __throtl_de/enqueue_tg()
  blk-throttle: Move service tree validation out of the throtl_rb_first()
  blk-throttle: Move the list operation after list validation
  blk-throttle: Fix IO hang for a corner case
  blk-throttle: Avoid tracking latency if low limit is invalid
  blk-throttle: Avoid getting the current time if tg->last_finish_time is 0
  blk-throttle: Remove a meaningless parameter for throtl_downgrade_state()
  block: Remove redundant 'return' statement
  ...
2020-10-13 12:12:44 -07:00
Vasily Gorbik
6cf4ecf5c5 perf build: Allow nested externs to enable BUILD_BUG() usage
Currently BUILD_BUG() macro is expanded to smth like the following:

   do {
           extern void __compiletime_assert_0(void)
                   __attribute__((error("BUILD_BUG failed")));
           if (!(!(1)))
                   __compiletime_assert_0();
   } while (0);

If used in a function body this obviously would produce build errors
with -Wnested-externs and -Werror.

To enable BUILD_BUG() usage in tools/arch/x86/lib/insn.c which perf
includes in intel-pt-decoder, build perf without -Wnested-externs.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> # build tested
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lore.kernel.org/lkml/patch-1.thread-251403.git-2514037e9477.your-ad-here.call-01602244460-ext-7088@work.hours
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 16:07:24 -03:00
Linus Torvalds
857d64485e - Fix the #DE oops message string format which confused tools parsing
crash information. (Thomas Gleixner)
 
 - Remove an unused variable in the UV5 code which was triggering a build
 warning with clang. (Mike Travis)
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Merge tag 'x86_urgent_for_v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:

 - Fix the #DE oops message string format which confused tools parsing
   crash information (Thomas Gleixner)

 - Remove an unused variable in the UV5 code which was triggering a
   build warning with clang (Mike Travis)

* tag 'x86_urgent_for_v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/uv: Remove unused variable in UV5 NMI handler
  x86/traps: Fix #DE Oops message regression
2020-10-13 12:02:57 -07:00
Rob Herring
441848282c dt: Remove booting-without-of.rst
booting-without-of.rst is an ancient document that first outlined
Flattened DeviceTree on PowerPC initially. The DT world has evolved a
lot in the 15 years since and booting-without-of.rst is pretty stale.
The name of the document itself is confusing if you don't understand the
evolution from real 'OpenFirmware'. Most of what booting-without-of.rst
contains is now in the DT specification (which evolved out of the
ePAPR). The few things that weren't documented in the DT specification
are now.

All that remains is the boot entry details, so let's move these to arch
specific documents. The exception is arm which already has the same
details documented.

Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-mips@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-sh@vger.kernel.org
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-13 13:33:16 -05:00
Mike Travis
081dd68c89 x86/platform/uv: Remove unused variable in UV5 NMI handler
Remove an unused variable.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20201013154731.132565-1-mike.travis@hpe.com
2020-10-13 19:21:13 +02:00
Thomas Gleixner
5f1ec1fd32 x86/traps: Fix #DE Oops message regression
The conversion of #DE to the idtentry mechanism introduced a change in the
Ooops message which confuses tools which parse crash information in dmesg.

Remove the underscore from 'divide_error' to restore previous behaviour.

Fixes: 9d06c4027f ("x86/entry: Convert Divide Error to IDTENTRY")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/CACT4Y+bTZFkuZd7+bPArowOv-7Die+WZpfOWnEO_Wgs3U59+oA@mail.gmail.com
2020-10-13 19:17:33 +02:00
Linus Torvalds
c4439713e8 hwmon changes for v5.10-rc1
New driver and chip support:
 - Moortec MR75203 PVT controller
 - MPS Multi-phase mp2975 controller
 - ADM1266
 - Zen3 CPUs
 - Intel MAX 10 BMC
 
 Enhancements:
 - Support for rated attributes in hwmon core
 - MAX20730
   - Device monitoring via debugfs
   - VOUT readin adjustment vie devicetree bindings
 - LM75
   - Devicetree support
   - Regulator support
 - Improved accumulationm logic in amd_energy driver
 - Added fan sensor to gsc-hwmon driver
 - Support for simplified I2C probing
 
 Various other minor fixes and improvements.
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Merge tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "New driver and chip support:
   - Moortec MR75203 PVT controller
   - MPS Multi-phase mp2975 controller
   - ADM1266
   - Zen3 CPUs
   - Intel MAX 10 BMC

  Enhancements:
   - Support for rated attributes in hwmon core
   - MAX20730:
      - Device monitoring via debugfs
      - VOUT readin adjustment vie devicetree bindings
   - LM75:
      - Devicetree support
      - Regulator support
   - Improved accumulationm logic in amd_energy driver
   - Added fan sensor to gsc-hwmon driver
   - Support for simplified I2C probing

  Various other minor fixes and improvements"

* tag 'hwmon-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (64 commits)
  hwmon: (pmbus/max20730) adjust the vout reading given voltage divider
  dt-bindings: hwmon: max20730: adding device tree doc for max20730
  hwmon: Add hardware monitoring driver for Moortec MR75203 PVT controller
  hwmon: Add DT bindings schema for PVT controller
  dt-bindings: hwmon: Add the +vs supply to the lm75 bindings
  dt-bindings: hwmon: Convert lm75 bindings to yaml
  docs: hwmon: (ltc2945) update datasheet link
  hwmon: (mlxreg-fan) Fix double "Mellanox"
  hwmon: (pmbus/max20730) add device monitoring via debugfs
  hwmon: (pmbus/max34440) Fix OC fault limits
  hwmon: (bt1-pvt) Wait for the completion with timeout
  hwmon: (bt1-pvt) Cache current update timeout
  hwmon: (bt1-pvt) Test sensor power supply on probe
  hwmon: (lm75) Add regulator support
  hwmon: Add hwmon driver for Intel MAX 10 BMC
  dt-bindings: Add MP2975 voltage regulator device
  hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller
  hwmon: (tmp513) fix spelling typo in comments
  hwmon: (amd_energy) Update driver documentation
  hwmon: (amd_energy) Improve the accumulation logic
  ...
2020-10-13 10:15:31 -07:00
Diana Craciun
83e491799e vfio/fsl-mc: Fixed vfio-fsl-mc driver compilation on 32 bit
The FSL_MC_BUS on which the VFIO-FSL-MC driver is dependent on
can be compiled on other architectures as well (not only ARM64)
including 32 bit architectures.
Include linux/io-64-nonatomic-hi-lo.h to make writeq/readq used
in the driver available on 32bit platforms.

Signed-off-by: Diana Craciun <diana.craciun@oss.nxp.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-10-13 11:12:29 -06:00
Linus Torvalds
0486beaf88 GPIO bulk changes for the v5.10 kernel cycle:
Core changes:
 
 - The big core change is the updated (v2) userspace character
   device API. This corrects badly designed 64-bit alignment around
   the line events. We also add the debounce request feature.
   This echoes the often quotes passage from Frederick Brooks
   "The mythical man-month" to always throw one away, which we
   have seen before in things such as V4L2. So we put in a new
   one and deprecate and obsolete the old one.
 
 - All example tools in tools/gpio/* are migrated to the new API
   to set a good example. The libgpiod userspace library has been
   augmented to use this new API pretty much from day 1.
 
 - Some misc API hardening by using strn* function calls has been
   added as well.
 
 - Use the simpler IDA interface for GPIO chip instance enumeration.
 
 - Add device core function for counting string arrays in
   device properties.
 
 - Provide a generic library function kfree_strarray() that can
   be used throughout the kernel.
 
 Driver enhancements:
 
 - The DesignWare dwapb-gpio driver has been enhanced and now
   uses the IRQ handling in the gpiolib core.
 
 - The mockup and aggregator drivers have seen some substantial
   code clean-up and now use more of the core kernel
   inftrastructure.
 
 - Misc cleanups using dev_err_probe().
 
 - The MXC drivers (Freescale/NXP) can now be built modularized,
   which makes modularized GKI Android kernels happy.
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Merge tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This time very little driver changes but lots of core changes.

  We have some interesting cooperative work for ARM and Intel alike,
  making the GPIO subsystem more and more suitable for industrial
  systems and the like, in addition to the in-kernel users.

  We touch driver core (device properties) and lib/* by adding one
  simple string array free function, these are authored by Andy
  Shevchenko who is a well known and recognized core helpers maintainers
  so this should be fine.

  We also see some Android GKI-related modularization in the MXC
  drivers.

  Core changes:

   - The big core change is the updated (v2) userspace character device
     API.

     This corrects badly designed 64-bit alignment around the line
     events. We also add the debounce request feature. This echoes the
     often quotes passage from Frederick Brooks "The mythical man-month"
     to always throw one away, which we have seen before in things such
     as V4L2. So we put in a new one and deprecate and obsolete the old
     one.

   - All example tools in tools/gpio/* are migrated to the new API to
     set a good example. The libgpiod userspace library has been
     augmented to use this new API pretty much from day 1.

   - Some misc API hardening by using strn* function calls has been
     added as well.

   - Use the simpler IDA interface for GPIO chip instance enumeration.

   - Add device core function for counting string arrays in device
     properties.

   - Provide a generic library function kfree_strarray() that can be
     used throughout the kernel.

  Driver enhancements:

   - The DesignWare dwapb-gpio driver has been enhanced and now uses the
     IRQ handling in the gpiolib core.

   - The mockup and aggregator drivers have seen some substantial code
     clean-up and now use more of the core kernel inftrastructure.

   - Misc cleanups using dev_err_probe().

   - The MXC drivers (Freescale/NXP) can now be built modularized, which
     makes modularized GKI Android kernels happy"

* tag 'gpio-v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (73 commits)
  gpiolib: Update header block in gpiolib-cdev.h
  gpiolib: cdev: switch from kstrdup() to kstrndup()
  docs: gpio: add a new document to its index.rst
  gpio: pca953x: Add support for the NXP PCAL9554B/C
  tools: gpio: add debounce support to gpio-event-mon
  tools: gpio: add multi-line monitoring to gpio-event-mon
  tools: gpio: port gpio-event-mon to v2 uAPI
  tools: gpio: port gpio-hammer to v2 uAPI
  tools: gpio: rename nlines to num_lines
  tools: gpio: port gpio-watch to v2 uAPI
  tools: gpio: port lsgpio to v2 uAPI
  gpio: uapi: document uAPI v1 as deprecated
  gpiolib: cdev: support setting debounce
  gpiolib: cdev: support GPIO_V2_LINE_SET_VALUES_IOCTL
  gpiolib: cdev: support GPIO_V2_LINE_SET_CONFIG_IOCTL
  gpiolib: cdev: support edge detection for uAPI v2
  gpiolib: cdev: support GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL
  gpiolib: cdev: support GPIO_V2_GET_LINE_IOCTL and GPIO_V2_LINE_GET_VALUES_IOCTL
  gpiolib: add build option for CDEV v1 ABI
  gpiolib: make cdev a build option
  ...
2020-10-13 10:09:33 -07:00
Linus Torvalds
a996b9c617 spi: Updates for v5.10
There's quite a lot of changes for SPI in this release but none in the
 core, they're all mostly small driver updates and additions.  Some of
 the more notable changes include:
 
  - A huge set of cleanups, optimizations and improvements for the
    DesignWare driver from Serge Semin finishing up the work started
    last release.
  - Conversion of the Zynq gqspi driver to spi-mem.
  - Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742.
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Merge tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi updates from Mark Brown:
 "There's quite a lot of changes for SPI in this release but none in the
  core, they're all mostly small driver updates and additions. Some of
  the more notable changes include:

   - A huge set of cleanups, optimizations and improvements for the
     DesignWare driver from Serge Semin finishing up the work started
     last release.

   - Conversion of the Zynq gqspi driver to spi-mem.

   - Support for Baikal T1, Broadcom BCMSTB 7445, and Renesas R8A7742"

* tag 'spi-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (137 commits)
  spi: cadence: Add SPI transfer delays
  spi: dw: Add Baikal-T1 SPI Controller bindings
  spi: dw: Add Baikal-T1 SPI Controller glue driver
  spi: dw: Add poll-based SPI transfers support
  spi: dw: Introduce max mem-ops SPI bus frequency setting
  spi: dw: Add memory operations support
  spi: dw: Add generic DW SSI status-check method
  spi: dw: Move num-of retries parameter to the header file
  spi: dw: Explicitly de-assert CS on SPI transfer completion
  spi: dw: De-assert chip-select on reset
  spi: dw: Discard chip enabling on DMA setup error
  spi: dw: Unmask IRQs after enabling the chip
  spi: dw: Perform IRQ setup in a dedicated function
  spi: dw: Refactor IRQ-based SPI transfer procedure
  spi: dw: Refactor data IO procedure
  spi: dw: Add DW SPI controller config structure
  spi: dw: Update Rx sample delay in the config function
  spi: dw: Simplify the SPI bus speed config procedure
  spi: dw: Update SPI bus speed in a config function
  spi: dw: Detach SPI device specific CR0 config method
  ...
2020-10-13 10:03:12 -07:00
Jiri Slaby
f3013f7ed4 perf trace: Fix off by ones in memset() after realloc() in arches using libaudit
'perf trace ls' started crashing after commit d21cb73a90 on
!HAVE_SYSCALL_TABLE_SUPPORT configs (armv7l here) like this:

  0  strlen () at ../sysdeps/arm/armv6t2/strlen.S:126
  1  0xb6800780 in __vfprintf_internal (s=0xbeff9908, s@entry=0xbeff9900, format=0xa27160 "]: %s()", ap=..., mode_flags=<optimized out>) at vfprintf-internal.c:1688
  ...
  5  0x0056ecdc in fprintf (__fmt=0xa27160 "]: %s()", __stream=<optimized out>) at /usr/include/bits/stdio2.h:100
  6  trace__sys_exit (trace=trace@entry=0xbeffc710, evsel=evsel@entry=0xd968d0, event=<optimized out>, sample=sample@entry=0xbeffc3e8) at builtin-trace.c:2475
  7  0x00566d40 in trace__handle_event (sample=0xbeffc3e8, event=<optimized out>, trace=0xbeffc710) at builtin-trace.c:3122
  ...
  15 main (argc=2, argv=0xbefff6e8) at perf.c:538

It is because memset in trace__read_syscall_info zeroes wrong memory:

1) when initializing for the first time, it does not reset the last id.

2) in other cases, it resets the last id of previous buffer.

ad 1) it causes the crash above as sc->name used in the fprintf above
      contains garbage.

ad 2) it sets nonexistent from true back to false for id 11 here. Not
      sure, what the consequences are.

So fix it by introducing a special case for the initial initialization
and do the right +1 in both cases.

Fixes: d21cb73a90 ("perf trace: Grow the syscall table as needed when using libaudit")
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20201001093419.15761-1-jslaby@suse.cz
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 13:57:41 -03:00
Linus Torvalds
1724e02e02 regulator: Updates for v5.10
This is a fairly small release for the regulator API, there's quite a
 few new devices supported and some important improvements around coupled
 regulators in the core but mostly just small fixes and improvements
 otherwise.
 
  - Fixes and cleanups around the handling of coupled regulators.
  - A special driver for some Raspberry Pi panels with some unusually
    custom stuff around them.
  - Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek RT4801
    and RTMV20, Rohm BD9576MUF and BD9573MUF.
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Merge tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator

Pull regulator updates from Mark Brown:
 "This is a fairly small release for the regulator API, there's quite a
  few new devices supported and some important improvements around
  coupled regulators in the core but mostly just small fixes and
  improvements otherwise.

  Summary:

   - Fixes and cleanups around the handling of coupled regulators.

   - A special driver for some Raspberry Pi panels with some unusually
     custom stuff around them.

   - Support for Qualcomm PM660/PM660L, PM8950 and PM8953, Richtek
     RT4801 and RTMV20, Rohm BD9576MUF and BD9573MUF"

* tag 'regulator-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (89 commits)
  regulator: bd9576: Fix print
  regulator: bd9576: fix regulator binfdings dt node names
  dt-bindings: regulator: document pm8950 and pm8953 smd regulators
  regulator: qcom_smd: add pm8953 regulators
  regulator: Make constraint debug processing conditional on DEBUG
  regulator: qcom: labibb: Constify static structs
  regulator: dt-bindings: Document the PM660/PM660L PMICs entries
  regulator: qcom_smd: Add PM660/PM660L regulator support
  regulator: dt-bindings: Document the PM660/660L SPMI PMIC entries
  regulator: qcom_spmi: Add PM660/PM660L regulators
  regulator: qcom_spmi: Add support for new regulator types
  regulator: core: Enlarge max OF property name length to 64 chars
  regulator: tps65910: use regmap accessors
  regulator: rtmv20: Add missing regcache cache only before marked as dirty
  regulator: rtmv20: Update DT binding document and property name parsing
  regulator: rtmv20: Add DT-binding document for Richtek RTMV20
  regulator: rtmv20: Adds support for Richtek RTMV20 load switch regulator
  regulator: resolve supply after creating regulator
  regulator: print symbolic errors in kernel messages
  regulator: print state at boot
  ...
2020-10-13 09:56:25 -07:00
Linus Torvalds
57218d7f2e regmap: Updates for v5.10
Quite a busy release for regmap, mostly support for new features useful
 on fairly small subsets of devices.  The user visible features are:
 
  - A new API for registering large numbers of regmap fields at once.
  - Support for Intel AVMM buses connected via SPI.
  - Support for 12/20 address/value layouts.
  - Support for yet another scheme for acknowledging interrupts used on
    some Qualcomm devices.
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Merge tag 'regmap-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "Quite a busy release for regmap, mostly support for new features
  useful on fairly small subsets of devices. The user visible features
  are:

   - A new API for registering large numbers of regmap fields at once.

   - Support for Intel AVMM buses connected via SPI.

   - Support for 12/20 address/value layouts.

   - Support for yet another scheme for acknowledging interrupts used on
     some Qualcomm devices"

* tag 'regmap-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: irq: Add support to clear ack registers
  regmap: add support to regmap_field_bulk_alloc/free apis
  regmap: destroy mutex (if used) in regmap_exit()
  regmap: debugfs: use semicolons rather than commas to separate statements
  regmap: debugfs: Fix more error path regressions
  regmap: Add support for 12/20 register formatting
  regmap: Add can_sleep configuration option
  regmap: soundwire: remove unused header mod_devicetable.h
  regmap: Use flexible sleep
  regmap: add Intel SPI Slave to AVMM Bus Bridge support
2020-10-13 09:53:59 -07:00
Linus Torvalds
fd5c32d808 media updates for v5.10-rc1
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Merge tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - the usbvision driver was dropped from staging

 - the Zoran driver were re-added at staging. It gained lots of
   improvements, and was converted to use videobuf2 API

 - a new virtual driver (vidtv) was added in order to allow testing the
   digital TV framework and APIs

 - the media uAPI documentation gained a glossary with commonly used
   terms, helping to simplify some parts of the docs

 - more cleanups at the atomisp driver

 - Mediatek VPU gained support for MT8183

 - added support for codecs with supports doing colorspace conversion
   (CSC)

 - support for CSC API was added at vivid and rksip1 drivers

 - added a helper core support and uAPI for better supporting H.264
   codecs

 - added support for Renesas R8A774E1

 - use the new SPDX GFDL-1.1-no-invariants-or-later license on media
   uAPI docs, instead of a license text

 - Venus driver has gained VP9 codec support

 - lots of other cleanups and driver improvements

* tag 'media/v5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (555 commits)
  media: dvb-frontends/drxk_hard.c: fix uninitialized variable warning
  media: tvp7002: fix uninitialized variable warning
  media: s5k5baf: drop 'data' field in struct s5k5baf_fw
  media: dt-bindings: media: venus: Add an optional power domain for perf voting
  media: rcar-vin: rcar-dma: Fix setting VNIS_REG for RAW8 formats
  media: staging: rkisp1: uapi: Do not use BIT() macro
  media: v4l2-mem2mem: Fix spurious v4l2_m2m_buf_done
  media: usbtv: Fix refcounting mixup
  media: zoran.rst: place it at the right place this time
  media: add Zoran cardlist
  media: admin-guide: update cardlists
  media: siano: rename a duplicated card string
  media: zoran: move documentation file to the right place
  media: atomisp: fixes build breakage for ISP2400 due to a cleanup
  media: zoran: fix mixed case on vars
  media: zoran: get rid of an unused var
  media: zoran: use upper case for card types
  media: zoran: fix sparse warnings
  media: zoran: fix smatch warning
  media: zoran: update TODO
  ...
2020-10-13 09:37:02 -07:00
Kai Vehmanen
ce1558c285 ALSA: hda/hdmi: fix incorrect locking in hdmi_pcm_close
A race exists between closing a PCM and update of ELD data. In
hdmi_pcm_close(), hinfo->nid value is modified without taking
spec->pcm_lock. If this happens concurrently while processing an ELD
update in hdmi_pcm_setup_pin(), converter assignment may be done
incorrectly.

This bug was found by hitting a WARN_ON in snd_hda_spdif_ctls_assign()
in a HDMI receiver connection stress test:

[2739.684569] WARNING: CPU: 5 PID: 2090 at sound/pci/hda/patch_hdmi.c:1898 check_non_pcm_per_cvt+0x41/0x50 [snd_hda_codec_hdmi]
...
[2739.684707] Call Trace:
[2739.684720]  update_eld+0x121/0x5a0 [snd_hda_codec_hdmi]
[2739.684736]  hdmi_present_sense+0x21e/0x3b0 [snd_hda_codec_hdmi]
[2739.684750]  check_presence_and_report+0x81/0xd0 [snd_hda_codec_hdmi]
[2739.684842]  intel_audio_codec_enable+0x122/0x190 [i915]

Fixes: 42b2987079 ("ALSA: hda - hdmi playback without monitor in dynamic pcm bind mode")
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201013152628.920764-1-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-10-13 18:34:35 +02:00
Linus Torvalds
647412daeb MMC core:
- Export SDIO revision and info strings to userspace
  - Add support for specifying mmc/mmcblk index via mmc aliases in DT
 
 MMC host:
  - Enable support for async probe for all mmc host drivers
  - Enable compile testing of multiple host drivers
  - dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY
  - mtk-sd: Fixup support for CQHCI
  - owl-mmc: Add support for the actions,s700-mmc variant
  - renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards
  - renesas_sdhi: Add support for the r8a774e1 variant
  - renesas_sdhi/tmio: Improvements for tunings
  - renesas_sdhi/tmio: Rework support for reset of controller
  - sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040
  - sdhci_am654: Improve support for tunings
  - sdhci_am654: Add support for input tap delays
  - sdhci_am654: Add workaround for card detect debounce timer
  - sdhci-am654: Add support for the TI's J7200 variants
  - sdhci-esdhc-imx: Fix support for manual tuning
  - sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711
  - sdhci-msm: Fix stability issues with HS400 for sc7180
  - sdhci-of-sparx5: Add Sparx5 SoC eMMC driver
  - sdhci-of-esdhc: Fixup reference clock source selection
  - sdhci-pci: Add LTR support for some Intel BYT controllers
  - sdhci-pci-gli: Add CQHCI Support for GL9763E
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Merge tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC updates from Ulf Hansson:
 "MMC core:
   - Export SDIO revision and info strings to userspace
   - Add support for specifying mmc/mmcblk index via mmc aliases in DT

 MMC host:
   - Enable support for async probe for all mmc host drivers
   - Enable compile testing of multiple host drivers
   - dw_mmc: Enable the Synopsys DesignWare driver for RISCV and CSKY
   - mtk-sd: Fixup support for CQHCI
   - owl-mmc: Add support for the actions,s700-mmc variant
   - renesas_sdhi: Fix regression (temporary) for re-insertion of SD cards
   - renesas_sdhi: Add support for the r8a774e1 variant
   - renesas_sdhi/tmio: Improvements for tunings
   - renesas_sdhi/tmio: Rework support for reset of controller
   - sdhci-acpi: Fix HS400 tuning for devices with invalid presets on AMDI0040
   - sdhci_am654: Improve support for tunings
   - sdhci_am654: Add support for input tap delays
   - sdhci_am654: Add workaround for card detect debounce timer
   - sdhci-am654: Add support for the TI's J7200 variants
   - sdhci-esdhc-imx: Fix support for manual tuning
   - sdhci-iproc: Enable support for eMMC DDR 3.3V for bcm2711
   - sdhci-msm: Fix stability issues with HS400 for sc7180
   - sdhci-of-sparx5: Add Sparx5 SoC eMMC driver
   - sdhci-of-esdhc: Fixup reference clock source selection
   - sdhci-pci: Add LTR support for some Intel BYT controllers
   - sdhci-pci-gli: Add CQHCI Support for GL9763E"

* tag 'mmc-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (91 commits)
  mmc: sdhci_am654: Fix module autoload
  mmc: renesas_sdhi: workaround a regression when reinserting SD cards
  mmc: sdhci-pci-gli: Add CQHCI Support for GL9763E
  mmc: sdhci-acpi: AMDI0040: Set SDHCI_QUIRK2_PRESET_VALUE_BROKEN
  mmc: sdhci_am654: Enable tuning for SDR50
  mmc: sdhci_am654: Add support for software tuning
  mmc: sdhci_am654: Add support for input tap delay
  mmc: sdhci_am654: Fix hard coded otap delay array size
  dt-bindings: mmc: sdhci-am654: Add documentation for input tap delay
  dt-bindings: mmc: sdhci-am654: Convert sdhci-am654 controller documentation to json schema
  mmc: sdhci-of-esdhc: fix reference clock source selection
  mmc: host: fix depends for MMC_MESON_GX w/ COMPILE_TEST
  mmc: sdhci-s3c: hide forward declaration of of_device_id behind CONFIG_OF
  mmc: sdhci: fix indentation mistakes
  mmc: moxart: remove unneeded check for drvdata
  mmc: renesas_sdhi: drop local flag for tuning
  mmc: rtsx_usb_sdmmc: simplify the return expression of sd_change_phase()
  mmc: core: document mmc_hw_reset()
  mmc: mediatek: Drop pointer to mmc_host from msdc_host
  dt-bindings: mmc: owl: add compatible string actions,s700-mmc
  ...
2020-10-13 09:25:24 -07:00
Vitor Massaru Iha
d2585f5164 lib: kunit: add bitfield test conversion to KUnit
This adds the conversion of the runtime tests of test_bitfield,
from `lib/test_bitfield.c` to KUnit tests.

Code Style Documentation: [0]

Signed-off-by: Vitor Massaru Iha <vitor@massaru.org>
Link: [0] https://lore.kernel.org/linux-kselftest/20200620054944.167330-1-davidgow@google.com/T/#u
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-10-13 10:20:09 -06:00
Thomas Cedeno
03ca0ec138 LSM: SafeSetID: Fix warnings reported by test bot
Fix multiple cast-to-union warnings related to casting kuid_t and kgid_t
types to kid_t union type. Also fix incompatible type warning that
arises from accidental omission of "__rcu" qualifier on the struct
setid_ruleset pointer in the argument list for safesetid_file_read().

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Cedeno <thomascedeno@google.com>
Signed-off-by: Micah Morton <mortonm@chromium.org>
2020-10-13 09:17:36 -07:00
Thomas Cedeno
5294bac97e LSM: SafeSetID: Add GID security policy handling
The SafeSetID LSM has functionality for restricting setuid() calls based
on its configured security policies. This patch adds the analogous
functionality for setgid() calls. This is mostly a copy-and-paste change
with some code deduplication, plus slight modifications/name changes to
the policy-rule-related structs (now contain GID rules in addition to
the UID ones) and some type generalization since SafeSetID now needs to
deal with kgid_t and kuid_t types.

Signed-off-by: Thomas Cedeno <thomascedeno@google.com>
Signed-off-by: Micah Morton <mortonm@chromium.org>
2020-10-13 09:17:35 -07:00
Thomas Cedeno
111767c1d8 LSM: Signal to SafeSetID when setting group IDs
For SafeSetID to properly gate set*gid() calls, it needs to know whether
ns_capable() is being called from within a sys_set*gid() function or is
being called from elsewhere in the kernel. This allows SafeSetID to deny
CAP_SETGID to restricted groups when they are attempting to use the
capability for code paths other than updating GIDs (e.g. setting up
userns GID mappings). This is the identical approach to what is
currently done for CAP_SETUID.

NOTE: We also add signaling to SafeSetID from the setgroups() syscall,
as we have future plans to restrict a process' ability to set
supplementary groups in addition to what is added in this series for
restricting setting of the primary group.

Signed-off-by: Thomas Cedeno <thomascedeno@google.com>
Signed-off-by: Micah Morton <mortonm@chromium.org>
2020-10-13 09:17:34 -07:00
Leo Yan
edac75a2f8 perf c2c: Update usage for showing memory events
Since commit b027cc6fdf ("perf c2c: Fix 'perf c2c record -e list' to
show the default events used"), "perf c2c" tool can show the memory
events properly, it's no reason to still suggest user to use the
command "perf mem record -e list" for showing events.

This patch updates the usage for showing memory events with command
"perf c2c record -e list".

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20201011121022.22409-1-leo.yan@linaro.org
2020-10-13 13:15:38 -03:00
Linus Torvalds
dfef313e99 Changes since last update:
- fix an issue which can cause overlay permission problem
    due to duplicated permission check for "trusted." xattrs;
 
  - add REQ_RAHEAD flag to readahead requests for blktrace;
 
  - several random cleanup.
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Merge tag 'erofs-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs updates from Gao Xiang:
 "This cycle addresses a reported permission issue with overlay due to a
  duplicated permission check for "trusted." xattrs. Also, a REQ_RAHEAD
  flag is added now to all readahead requests in order to trace
  readahead I/Os. The others are random cleanups.

  All commits have been tested and have been in linux-next as well.

  Summary:

   - fix an issue which can cause overlay permission problem due to
     duplicated permission check for "trusted." xattrs;

   - add REQ_RAHEAD flag to readahead requests for blktrace;

   - several random cleanup"

* tag 'erofs-for-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: remove unnecessary enum entries
  erofs: add REQ_RAHEAD flag to readahead requests
  erofs: fold in should_decompress_synchronously()
  erofs: avoid unnecessary variable `err'
  erofs: remove unneeded parameter
  erofs: avoid duplicated permission check for "trusted." xattrs
2020-10-13 09:09:42 -07:00
Arnaldo Carvalho de Melo
dbaa1b3d9a Merge branch 'perf/urgent' into perf/core
To pick fixes that missed v5.9.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 13:02:20 -03:00
Linus Torvalds
11e3235b43 for-5.10-tag
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Merge tag 'for-5.10-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "Mostly core updates with a few user visible bits and fixes.

  Hilights:

   - fsync performance improvements
      - less contention of log mutex (throughput +4%, latency -14%,
        dbench with 32 clients)
      - skip unnecessary commits for link and rename (throughput +6%,
        latency -30%, rename latency -75%, dbench with 16 clients)
      - make fast fsync wait only for writeback (throughput +10..40%,
        runtime -1..-20%, dbench with 1 to 64 clients on various
        file/block sizes)

   - direct io is now implemented using the iomap infrastructure, that's
     the main part, we still have a workaround that requires an iomap
     API update, coming in 5.10

   - new sysfs exports:
      - information about the exclusive filesystem operation status
        (balance, device add/remove/replace, ...)
      - supported send stream version

  Core:

   - use ticket space reservations for data, fair policy using the same
     infrastructure as metadata

   - preparatory work to switch locking from our custom tree locks to
     standard rwsem, now the locking context is propagated to all
     callers, actual switch is expected to happen in the next dev cycle

   - seed device structures are now using list API

   - extent tracepoints print proper tree id

   - unified range checks for extent buffer helpers

   - send: avoid using temporary buffer for copying data

   - remove unnecessary RCU protection from space infos

   - remove unused readpage callback for metadata, enabling several
     cleanups

   - replace indirect function calls for end io hooks and remove
     extent_io_ops completely

  Fixes:

   - more lockdep warning fixes

   - fix qgroup reservation for delayed inode and an occasional
     reservation leak for preallocated files

   - fix device replace of a seed device

   - fix metadata reservation for fallocate that leads to transaction
     aborts

   - reschedule if necessary when logging directory items or when
     cloning lots of extents

   - tree-checker: fix false alert caused by legacy btrfs root item

   - send: fix rename/link conflicts for orphanized inodes

   - properly initialize device stats for seed devices

   - skip devices without magic signature when mounting

  Other:

   - error handling improvements, BUG_ONs replaced by proper handling,
     fuzz fixes

   - various function parameter cleanups

   - various W=1 cleanups

   - error/info messages improved

  Mishaps:

   - commit 62cf539120 ("btrfs: move btrfs_rm_dev_replace_free_srcdev
     outside of all locks") is a rebase leftover after the patch got
     merged to 5.9-rc8 as a466c85edc ("btrfs: move
     btrfs_rm_dev_replace_free_srcdev outside of all locks"), the
     remaining part is trivial and the patch is in the middle of the
     series so I'm keeping it there instead of rebasing"

* tag 'for-5.10-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (161 commits)
  btrfs: rename BTRFS_INODE_ORDERED_DATA_CLOSE flag
  btrfs: annotate device name rcu_string with __rcu
  btrfs: skip devices without magic signature when mounting
  btrfs: cleanup cow block on error
  btrfs: remove BTRFS_INODE_READDIO_NEED_LOCK
  fs: remove no longer used dio_end_io()
  btrfs: return error if we're unable to read device stats
  btrfs: init device stats for seed devices
  btrfs: remove struct extent_io_ops
  btrfs: call submit_bio_hook directly for metadata pages
  btrfs: stop calling submit_bio_hook for data inodes
  btrfs: don't opencode is_data_inode in end_bio_extent_readpage
  btrfs: call submit_bio_hook directly in submit_one_bio
  btrfs: remove extent_io_ops::readpage_end_io_hook
  btrfs: replace readpage_end_io_hook with direct calls
  btrfs: send, recompute reference path after orphanization of a directory
  btrfs: send, orphanize first all conflicting inodes when processing references
  btrfs: tree-checker: fix false alert caused by legacy btrfs root item
  btrfs: use unaligned helpers for stack and header set/get helpers
  btrfs: free-space-cache: use unaligned helpers to access data
  ...
2020-10-13 09:01:36 -07:00
Linus Torvalds
c024a81125 dlm for 5.10
This set continues the ongoing rework of the low level
 communication layer in the dlm.  The focus here is on
 improvements to connection handling, and reworking the
 receiving of messages.
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Merge tag 'dlm-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:
 "This set continues the ongoing rework of the low level communication
  layer in the dlm.

  The focus here is on improvements to connection handling, and
  reworking the receiving of messages"

* tag 'dlm-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  fs: dlm: fix race in nodeid2con
  fs: dlm: rework receive handling
  fs: dlm: disallow buffer size below default
  fs: dlm: handle range check as callback
  fs: dlm: fix mark per nodeid setting
  fs: dlm: remove lock dependency warning
  fs: dlm: use free_con to free connection
  fs: dlm: handle possible othercon writequeues
  fs: dlm: move free writequeue into con free
  fs: dlm: fix configfs memory leak
  fs: dlm: fix dlm_local_addr memory leak
  fs: dlm: make connection hash lockless
  fs: dlm: synchronize dlm before shutdown
2020-10-13 08:59:39 -07:00
Linus Torvalds
6f5032a852 fscrypt updates for 5.10
This release, we rework the implementation of creating new encrypted
 files in order to fix some deadlocks and prepare for adding fscrypt
 support to CephFS, which Jeff Layton is working on.
 
 We also export a symbol in preparation for the above-mentioned CephFS
 support and also for ext4/f2fs encrypt+casefold support.
 
 Finally, there are a few other small cleanups.
 
 As usual, all these patches have been in linux-next with no reported
 issues, and I've tested them with xfstests.
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Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt

Pull fscrypt updates from Eric Biggers:
 "This release, we rework the implementation of creating new encrypted
  files in order to fix some deadlocks and prepare for adding fscrypt
  support to CephFS, which Jeff Layton is working on.

  We also export a symbol in preparation for the above-mentioned CephFS
  support and also for ext4/f2fs encrypt+casefold support.

  Finally, there are a few other small cleanups.

  As usual, all these patches have been in linux-next with no reported
  issues, and I've tested them with xfstests"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/fscrypt:
  fscrypt: export fscrypt_d_revalidate()
  fscrypt: rename DCACHE_ENCRYPTED_NAME to DCACHE_NOKEY_NAME
  fscrypt: don't call no-key names "ciphertext names"
  fscrypt: use sha256() instead of open coding
  fscrypt: make fscrypt_set_test_dummy_encryption() take a 'const char *'
  fscrypt: handle test_dummy_encryption in more logical way
  fscrypt: move fscrypt_prepare_symlink() out-of-line
  fscrypt: make "#define fscrypt_policy" user-only
  fscrypt: stop pretending that key setup is nofs-safe
  fscrypt: require that fscrypt_encrypt_symlink() already has key
  fscrypt: remove fscrypt_inherit_context()
  fscrypt: adjust logging for in-creation inodes
  ubifs: use fscrypt_prepare_new_inode() and fscrypt_set_context()
  f2fs: use fscrypt_prepare_new_inode() and fscrypt_set_context()
  ext4: use fscrypt_prepare_new_inode() and fscrypt_set_context()
  ext4: factor out ext4_xattr_credits_for_new_inode()
  fscrypt: add fscrypt_prepare_new_inode() and fscrypt_set_context()
  fscrypt: restrict IV_INO_LBLK_32 to ino_bits <= 32
  fscrypt: drop unused inode argument from fscrypt_fname_alloc_buffer
2020-10-13 08:54:00 -07:00
Linus Torvalds
39a5101f98 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
 "API:
   - Allow DRBG testing through user-space af_alg
   - Add tcrypt speed testing support for keyed hashes
   - Add type-safe init/exit hooks for ahash

  Algorithms:
   - Mark arc4 as obsolete and pending for future removal
   - Mark anubis, khazad, sead and tea as obsolete
   - Improve boot-time xor benchmark
   - Add OSCCA SM2 asymmetric cipher algorithm and use it for integrity

  Drivers:
   - Fixes and enhancement for XTS in caam
   - Add support for XIP8001B hwrng in xiphera-trng
   - Add RNG and hash support in sun8i-ce/sun8i-ss
   - Allow imx-rngc to be used by kernel entropy pool
   - Use crypto engine in omap-sham
   - Add support for Ingenic X1830 with ingenic"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (205 commits)
  X.509: Fix modular build of public_key_sm2
  crypto: xor - Remove unused variable count in do_xor_speed
  X.509: fix error return value on the failed path
  crypto: bcm - Verify GCM/CCM key length in setkey
  crypto: qat - drop input parameter from adf_enable_aer()
  crypto: qat - fix function parameters descriptions
  crypto: atmel-tdes - use semicolons rather than commas to separate statements
  crypto: drivers - use semicolons rather than commas to separate statements
  hwrng: mxc-rnga - use semicolons rather than commas to separate statements
  hwrng: iproc-rng200 - use semicolons rather than commas to separate statements
  hwrng: stm32 - use semicolons rather than commas to separate statements
  crypto: xor - use ktime for template benchmarking
  crypto: xor - defer load time benchmark to a later time
  crypto: hisilicon/zip - fix the uninitalized 'curr_qm_qp_num'
  crypto: hisilicon/zip - fix the return value when device is busy
  crypto: hisilicon/zip - fix zero length input in GZIP decompress
  crypto: hisilicon/zip - fix the uncleared debug registers
  lib/mpi: Fix unused variable warnings
  crypto: x86/poly1305 - Remove assignments with no effect
  hwrng: npcm - modify readl to readb
  ...
2020-10-13 08:50:16 -07:00
Darrick J. Wong
ace74e797a xfs: annotate grabbing the realtime bitmap/summary locks in growfs
Use XFS_ILOCK_RT{BITMAP,SUM} to annotate grabbing the rt bitmap and
summary locks when we grow the realtime volume, just like we do most
everywhere else.  This shuts up lockdep warnings about grabbing the
ILOCK class of locks recursively:

============================================
WARNING: possible recursive locking detected
5.9.0-rc4-djw #rc4 Tainted: G           O
--------------------------------------------
xfs_growfs/4841 is trying to acquire lock:
ffff888035acc230 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0xac/0x1a0 [xfs]

but task is already holding lock:
ffff888035acedb0 (&xfs_nondir_ilock_class){++++}-{3:3}, at: xfs_ilock+0xac/0x1a0 [xfs]

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&xfs_nondir_ilock_class);
  lock(&xfs_nondir_ilock_class);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-10-13 08:41:31 -07:00
Darrick J. Wong
7249c95a3f xfs: make xfs_growfs_rt update secondary superblocks
When we call growfs on the data device, we update the secondary
superblocks to reflect the updated filesystem geometry.  We need to do
this for growfs on the realtime volume too, because a future xfs_repair
run could try to fix the filesystem using a backup superblock.

This was observed by the online superblock scrubbers while running
xfs/233.  One can also trigger this by growing an rt volume, cycling the
mount, and creating new rt files.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-10-13 08:41:31 -07:00
Darrick J. Wong
f4c32e87de xfs: fix realtime bitmap/summary file truncation when growing rt volume
The realtime bitmap and summary files are regular files that are hidden
away from the directory tree.  Since they're regular files, inode
inactivation will try to purge what it thinks are speculative
preallocations beyond the incore size of the file.  Unfortunately,
xfs_growfs_rt forgets to update the incore size when it resizes the
inodes, with the result that inactivating the rt inodes at unmount time
will cause their contents to be truncated.

Fix this by updating the incore size when we change the ondisk size as
part of updating the superblock.  Note that we don't do this when we're
allocating blocks to the rt inodes because we actually want those blocks
to get purged if the growfs fails.

This fixes corruption complaints from the online rtsummary checker when
running xfs/233.  Since that test requires rmap, one can also trigger
this by growing an rt volume, cycling the mount, and creating rt files.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-10-13 08:41:31 -07:00
Tzvetomir Stoyanov (VMware)
a41c32105c tools lib traceevent: Hide non API functions
There are internal library functions, which are not declared as a static.
They are used inside the library from different files. Hide them from
the library users, as they are not part of the API.
These functions are made hidden and are renamed without the prefix "tep_":
 tep_free_plugin_paths
 tep_peek_char
 tep_buffer_init
 tep_get_input_buf_ptr
 tep_get_input_buf
 tep_read_token
 tep_free_token
 tep_free_event
 tep_free_format_field
 __tep_parse_format

Link: https://lore.kernel.org/linux-trace-devel/e4afdd82deb5e023d53231bb13e08dca78085fb0.camel@decadent.org.uk/
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20200930110733.280534-1-tz.stoyanov@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 11:47:38 -03:00
Joel Fernandes (Google)
dc000c4593 perf sched: Show start of latency as well
The 'perf sched latency' tool is really useful at showing worst-case
latencies that task encountered since wakeup. However it shows only the
end of the latency. Often times the start of a latency is interesting as
it can show what else was going on at the time to cause the latency. I
certainly myself spending a lot of time backtracking to the start of the
latency in "perf sched script" which wastes a lot of time.

This patch therefore adds a new column "Max delay start". Considering
this, also rename "Maximum delay at" to "Max delay end" as its easier to
understand.

Example of the new output:

  ----------------------------------------------------------------------------------------------------------------------------------
   Task                  | Runtime ms  | Switches | Avg delay ms  | Max delay ms   | Max delay start         | Max delay end       |
  ----------------------------------------------------------------------------------------------------------------------------------
   MediaScannerSer:11936 |  651.296 ms |    67978 | avg: 0.113 ms | max: 77.250 ms | max start: 477.691360 s | max end: 477.768610 s
   audio@2.0-servi:(3)   |    0.000 ms |     3440 | avg: 0.034 ms | max: 72.267 ms | max start: 477.697051 s | max end: 477.769318 s
   AudioOut_1D:8112      |    0.000 ms |     2588 | avg: 0.083 ms | max: 64.020 ms | max start: 477.710740 s | max end: 477.774760 s
   Time-limited te:14973 | 7966.090 ms |    24807 | avg: 0.073 ms | max: 15.563 ms | max start: 477.162746 s | max end: 477.178309 s
   surfaceflinger:8049   |    9.680 ms |      603 | avg: 0.063 ms | max: 13.275 ms | max start: 476.931791 s | max end: 476.945067 s
   HeapTaskDaemon:(3)    | 1588.830 ms |     7040 | avg: 0.065 ms | max:  6.880 ms | max start: 473.666043 s | max end: 473.672922 s
   mount-passthrou:(3)   | 1370.809 ms |    68904 | avg: 0.011 ms | max:  6.524 ms | max start: 478.090630 s | max end: 478.097154 s
   ReferenceQueueD:(3)   |   11.794 ms |     1725 | avg: 0.014 ms | max:  6.521 ms | max start: 476.119782 s | max end: 476.126303 s
   writer:14077          |   18.410 ms |     1427 | avg: 0.036 ms | max:  6.131 ms | max start: 474.169675 s | max end: 474.175805 s

Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20200925235634.4089867-1-joel@joelfernandes.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 11:01:42 -03:00
Sandipan Das
70830f974e perf vendor events: Fix typos in power8 PMU events
This replaces the incorrectly spelled word "localtion" with "location"
in some power8 PMU event descriptions.

Fixes: 2a81fa3bb5 ("perf vendor events: Add power8 PMU events")
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lore.kernel.org/lkml/20201012050205.328523-1-sandipan@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 11:01:42 -03:00
Namhyung Kim
bf7ef5ddb0 perf bench: Run inject-build-id with --buildid-all option too
For comparison, it now runs the benchmark twice - one if regular -b and
another for --buildid-all.

  $ perf bench internals inject-build-id
  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 21.002 msec (+- 0.172 msec)
    Average time per event: 2.059 usec (+- 0.017 usec)
    Average memory usage: 8169 KB (+- 0 KB)
    Average build-id-all injection took: 19.543 msec (+- 0.124 msec)
    Average time per event: 1.916 usec (+- 0.012 usec)
    Average memory usage: 7348 KB (+- 0 KB)

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201012070214.2074921-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 11:01:42 -03:00
Namhyung Kim
27c9c3424f perf inject: Add --buildid-all option
Like 'perf record', we can even more speedup build-id processing by just
using all DSOs.  Then we don't need to look at all the sample events
anymore.  The following patch will update 'perf bench' to show the result
of the --buildid-all option too.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Original-patch-by: Stephane Eranian <eranian@google.com>
Acked-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201012070214.2074921-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 11:01:42 -03:00
Namhyung Kim
e7b60c5a0c perf inject: Do not load map/dso when injecting build-id
No need to load symbols in a DSO when injecting build-id.  I guess the
reason was to check the DSO is a special file like anon files.  Use some
helper functions in map.c to check them before reading build-id.  Also
pass sample event's cpumode to a new build-id event.

It brought a speedup in the benchmark of 25 -> 21 msec on my laptop.
Also the memory usage (Max RSS) went down by ~200 KB.

  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 21.389 msec (+- 0.138 msec)
    Average time per event: 2.097 usec (+- 0.014 usec)
    Average memory usage: 8225 KB (+- 0 KB)

Committer notes:

Before:

  $ perf stat -r5 perf bench internals inject-build-id > /dev/null

   Performance counter stats for 'perf bench internals inject-build-id' (5 runs):

            4,020.56 msec task-clock:u              #    1.271 CPUs utilized            ( +-  0.74% )
                   0      context-switches:u        #    0.000 K/sec
                   0      cpu-migrations:u          #    0.000 K/sec
             123,354      page-faults:u             #    0.031 M/sec                    ( +-  0.81% )
       7,119,951,568      cycles:u                  #    1.771 GHz                      ( +-  1.74% )  (83.27%)
         230,086,969      stalled-cycles-frontend:u #    3.23% frontend cycles idle     ( +-  1.97% )  (83.41%)
       1,168,298,765      stalled-cycles-backend:u  #   16.41% backend cycles idle      ( +-  1.13% )  (83.44%)
      11,173,083,669      instructions:u            #    1.57  insn per cycle
                                                    #    0.10  stalled cycles per insn  ( +-  1.58% )  (83.31%)
       2,413,908,936      branches:u                #  600.392 M/sec                    ( +-  1.69% )  (83.26%)
          46,576,289      branch-misses:u           #    1.93% of all branches          ( +-  2.20% )  (83.31%)

              3.1638 +- 0.0309 seconds time elapsed  ( +-  0.98% )

  $

After:

  $ perf stat -r5 perf bench internals inject-build-id > /dev/null

   Performance counter stats for 'perf bench internals inject-build-id' (5 runs):

            2,379.94 msec task-clock:u              #    1.473 CPUs utilized            ( +-  0.18% )
                   0      context-switches:u        #    0.000 K/sec
                   0      cpu-migrations:u          #    0.000 K/sec
              62,584      page-faults:u             #    0.026 M/sec                    ( +-  0.07% )
       2,372,389,668      cycles:u                  #    0.997 GHz                      ( +-  0.29% )  (83.14%)
         106,937,862      stalled-cycles-frontend:u #    4.51% frontend cycles idle     ( +-  4.89% )  (83.20%)
         581,697,915      stalled-cycles-backend:u  #   24.52% backend cycles idle      ( +-  0.71% )  (83.47%)
       3,659,692,199      instructions:u            #    1.54  insn per cycle
                                                    #    0.16  stalled cycles per insn  ( +-  0.10% )  (83.63%)
         791,372,961      branches:u                #  332.518 M/sec                    ( +-  0.27% )  (83.39%)
          10,648,083      branch-misses:u           #    1.35% of all branches          ( +-  0.22% )  (83.16%)

             1.61570 +- 0.00172 seconds time elapsed  ( +-  0.11% )

  $

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Original-patch-by: Stephane Eranian <eranian@google.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20201012070214.2074921-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 11:01:37 -03:00
Namhyung Kim
336c95b297 perf inject: Enter namespace when reading build-id
It should be in a proper mnt namespace when accessing the file.

I think this had no problem since the build-id was actually read from
map__load() -> dso__load() already.  But I'd like to change it in the
following commit.

Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201012070214.2074921-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 10:59:42 -03:00
Namhyung Kim
2946ecedd0 perf inject: Add missing callbacks in perf_tool
I found some events (like PERF_RECORD_CGROUP) are not copied by perf
inject due to the missing callbacks.  Let's add them.

While at it, I've changed the order of the callbacks to match with
struct perf_tool so that we can compare them easily.

Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201012070214.2074921-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 10:59:42 -03:00
Namhyung Kim
0bf02a0d80 perf bench: Add build-id injection benchmark
Sometimes I can see that 'perf record' piped with 'perf inject' take a
long time processing build-ids.

So introduce a inject-build-id benchmark to the internals benchmark
suite to measure its overhead regularly.

It runs the 'perf inject' command internally and feeds the given number
of synthesized events (MMAP2 + SAMPLE basically).

  Usage: perf bench internals inject-build-id <options>

    -i, --iterations <n>  Number of iterations used to compute average (default: 100)
    -m, --nr-mmaps <n>    Number of mmap events for each iteration (default: 100)
    -n, --nr-samples <n>  Number of sample events per mmap event (default: 100)
    -v, --verbose         be more verbose (show iteration count, DSO name, etc)

By default, it measures average processing time of 100 MMAP2 events
and 10000 SAMPLE events.  Below is a result on my laptop.

  $ perf bench internals inject-build-id
  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 25.789 msec (+- 0.202 msec)
    Average time per event: 2.528 usec (+- 0.020 usec)
    Average memory usage: 8411 KB (+- 7 KB)

Committer testing:

  $ perf bench
  Usage:
  	perf bench [<common options>] <collection> <benchmark> [<options>]

          # List of all available benchmark collections:

           sched: Scheduler and IPC benchmarks
         syscall: System call benchmarks
             mem: Memory access benchmarks
            numa: NUMA scheduling and MM benchmarks
           futex: Futex stressing benchmarks
           epoll: Epoll stressing benchmarks
       internals: Perf-internals benchmarks
             all: All benchmarks

  $ perf bench internals

          # List of available benchmarks for collection 'internals':

      synthesize: Benchmark perf event synthesis
  kallsyms-parse: Benchmark kallsyms parsing
  inject-build-id: Benchmark build-id injection

  $ perf bench internals inject-build-id
  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 14.202 msec (+- 0.059 msec)
    Average time per event: 1.392 usec (+- 0.006 usec)
    Average memory usage: 12650 KB (+- 10 KB)
    Average build-id-all injection took: 12.831 msec (+- 0.071 msec)
    Average time per event: 1.258 usec (+- 0.007 usec)
    Average memory usage: 11895 KB (+- 10 KB)
  $

  $ perf stat -r5 perf bench internals inject-build-id
  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 14.380 msec (+- 0.056 msec)
    Average time per event: 1.410 usec (+- 0.006 usec)
    Average memory usage: 12608 KB (+- 11 KB)
    Average build-id-all injection took: 11.889 msec (+- 0.064 msec)
    Average time per event: 1.166 usec (+- 0.006 usec)
    Average memory usage: 11838 KB (+- 10 KB)
  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 14.246 msec (+- 0.065 msec)
    Average time per event: 1.397 usec (+- 0.006 usec)
    Average memory usage: 12744 KB (+- 10 KB)
    Average build-id-all injection took: 12.019 msec (+- 0.066 msec)
    Average time per event: 1.178 usec (+- 0.006 usec)
    Average memory usage: 11963 KB (+- 10 KB)
  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 14.321 msec (+- 0.067 msec)
    Average time per event: 1.404 usec (+- 0.007 usec)
    Average memory usage: 12690 KB (+- 10 KB)
    Average build-id-all injection took: 11.909 msec (+- 0.041 msec)
    Average time per event: 1.168 usec (+- 0.004 usec)
    Average memory usage: 11938 KB (+- 10 KB)
  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 14.287 msec (+- 0.059 msec)
    Average time per event: 1.401 usec (+- 0.006 usec)
    Average memory usage: 12864 KB (+- 10 KB)
    Average build-id-all injection took: 11.862 msec (+- 0.058 msec)
    Average time per event: 1.163 usec (+- 0.006 usec)
    Average memory usage: 12103 KB (+- 10 KB)
  # Running 'internals/inject-build-id' benchmark:
    Average build-id injection took: 14.402 msec (+- 0.053 msec)
    Average time per event: 1.412 usec (+- 0.005 usec)
    Average memory usage: 12876 KB (+- 10 KB)
    Average build-id-all injection took: 11.826 msec (+- 0.061 msec)
    Average time per event: 1.159 usec (+- 0.006 usec)
    Average memory usage: 12111 KB (+- 10 KB)

   Performance counter stats for 'perf bench internals inject-build-id' (5 runs):

            4,267.48 msec task-clock:u              #    1.502 CPUs utilized            ( +-  0.14% )
                   0      context-switches:u        #    0.000 K/sec
                   0      cpu-migrations:u          #    0.000 K/sec
             102,092      page-faults:u             #    0.024 M/sec                    ( +-  0.08% )
       3,894,589,578      cycles:u                  #    0.913 GHz                      ( +-  0.19% )  (83.49%)
         140,078,421      stalled-cycles-frontend:u #    3.60% frontend cycles idle     ( +-  0.77% )  (83.34%)
         948,581,189      stalled-cycles-backend:u  #   24.36% backend cycles idle      ( +-  0.46% )  (83.25%)
       5,835,587,719      instructions:u            #    1.50  insn per cycle
                                                    #    0.16  stalled cycles per insn  ( +-  0.21% )  (83.24%)
       1,267,423,636      branches:u                #  296.996 M/sec                    ( +-  0.22% )  (83.12%)
          17,484,290      branch-misses:u           #    1.38% of all branches          ( +-  0.12% )  (83.55%)

             2.84176 +- 0.00222 seconds time elapsed  ( +-  0.08% )

  $

Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20201012070214.2074921-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-10-13 10:59:42 -03:00
Biju Das
588614be61 dt-bindings: update usb-c-connector example
Some hardware designs have USB typec connector attached to both
SoC and super speed mux. We need to use separate connector node for
such design.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20200920134905.4370-2-biju.das.jz@bp.renesas.com
Signed-off-by: Rob Herring <robh@kernel.org>
2020-10-13 07:53:34 -05:00
Matthew Wilcox (Oracle)
84c34df158 XArray: Fix xas_create_range for ranges above 4 billion
The 'sibs' variable would be shifted as a 32-bit integer, so if 'shift'
is more than 32, this is undefined behaviour.  In practice, this doesn't
happen because the page cache is the only user and nobody uses 16TB pages.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2020-10-13 08:53:29 -04:00
Rafael J. Wysocki
16641d81f9 Merge branches 'pm-avs' and 'powercap'
* pm-avs:
  MAINTAINERS: drop myself from PM AVS drivers
  PM: AVS: qcom-cpr: simplify the return expression of cpr_disable()

* powercap:
  powercap: include header to fix -Wmissing-prototypes
2020-10-13 14:48:38 +02:00
Rafael J. Wysocki
2cf9ba2905 Merge branches 'pm-core', 'pm-sleep', 'pm-pci' and 'pm-domains'
* pm-core:
  PM: runtime: Fix timer_expires data type on 32-bit arches
  PM: runtime: Remove link state checks in rpm_get/put_supplier()

* pm-sleep:
  ACPI: EC: PM: Drop ec_no_wakeup check from acpi_ec_dispatch_gpe()
  ACPI: EC: PM: Flush EC work unconditionally after wakeup
  PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
  PM: hibernate: Batch hibernate and resume IO requests

* pm-pci:
  PCI/ACPI: Whitelist hotplug ports for D3 if power managed by ACPI

* pm-domains:
  PM: domains: Allow to abort power off when no ->power_off() callback
  PM: domains: Rename power state enums for genpd
2020-10-13 14:48:20 +02:00
Rafael J. Wysocki
8be2362d10 Merge branches 'acpi-extlog', 'acpi-memhotplug', 'acpi-button', 'acpi-tools' and 'acpi-pci'
* acpi-extlog:
  ACPI / extlog: Check for RDMSR failure

* acpi-memhotplug:
  ACPI: memhotplug: Remove 'state' from struct acpi_memory_device

* acpi-button:
  ACPI: button: fix handling lid state changes when input device closed

* acpi-tools:
  tools/power/acpi: Serialize Makefile

* acpi-pci:
  ACPI: PCI: update kernel-doc line comments
2020-10-13 14:45:36 +02:00
Rafael J. Wysocki
5d2a3ca813 Merge branch 'acpi-misc'
* acpi-misc:
  ACPI: Make acpi_evaluate_dsm() prototype consistent
  ACPI: wakeup: Remove dead ACPICA debug code
  ACPI: video: Remove leftover ACPICA debug code
  ACPI: tiny-power-button: Remove dead ACPICA debug code
  ACPI: processor: Remove dead ACPICA debug code
  ACPI: proc: Remove dead ACPICA debug code
  ACPI: PCI: Remove unused ACPICA debug code
  ACPI: event: Remove leftover ACPICA debug code
  ACPI: dock: Remove dead ACPICA debug code
  ACPI: debugfs: Remove dead ACPICA debug code
  ACPI: custom_method: Remove dead ACPICA debug code
  ACPI: container: Remove leftover ACPICA debug functionality
  ACPI: platform: Remove ACPI_MODULE_NAME()
  ACPI: memhotplug: Remove leftover ACPICA debug functionality
  ACPI: LPSS: Remove ACPI_MODULE_NAME()
  ACPI: cmos_rtc: Remove leftover ACPI_MODULE_NAME()
  ACPI: Remove three unused inline functions
2020-10-13 14:44:57 +02:00
Rafael J. Wysocki
e4174ff78b Merge branch 'acpi-numa'
* acpi-numa:
  docs: mm: numaperf.rst Add brief description for access class 1.
  node: Add access1 class to represent CPU to memory characteristics
  ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
  ACPI: Let ACPI know we support Generic Initiator Affinity Structures
  x86: Support Generic Initiator only proximity domains
  ACPI: Support Generic Initiator only domains
  ACPI / NUMA: Add stub function for pxm_to_node()
  irq-chip/gic-v3-its: Fix crash if ITS is in a proximity domain without processor or memory
  ACPI: Remove side effect of partly creating a node in acpi_get_node()
  ACPI: Rename acpi_map_pxm_to_online_node() to pxm_to_online_node()
  ACPI: Remove side effect of partly creating a node in acpi_map_pxm_to_online_node()
  ACPI: Do not create new NUMA domains from ACPI static tables that are not SRAT
  ACPI: Add out of bounds and numa_off protections to pxm_to_node()
2020-10-13 14:44:50 +02:00
Rafael J. Wysocki
20eeeafb91 Merge branches 'acpi-video', 'acpi-battery', 'acpi-config' and 'acpi-scan'
* acpi-video:
  ACPI: video: use ACPI backlight for HP 635 Notebook

* acpi-battery:
  ACPI: battery: include linux/power_supply.h

* acpi-config:
  ACPI: configfs: Add missing config_item_put() to fix refcount leak

* acpi-scan:
  ACPI: scan: Replace ACPI_DEBUG_PRINT() with pr_debug()
2020-10-13 14:44:34 +02:00
Rafael J. Wysocki
acd448f300 Merge branches 'acpi-tables', 'acpi-pmic', 'acpi-dptf' and 'acpi-soc'
* acpi-tables:
  ACPI: NFIT: Use kobj_to_dev() instead

* acpi-pmic:
  MAINTAINERS: Use my kernel.org address for Intel PMIC work
  ACPI / PMIC: Move TPS68470 OpRegion driver to drivers/acpi/pmic/
  ACPI / PMIC: Split out Kconfig and Makefile specific for ACPI PMIC

* acpi-dptf:
  ACPI: DPTF: Add PCH FIVR participant driver

* acpi-soc:
  ACPI: APD: Clean up header file include statements
  ACPI: APD: Remove unnecessary APD_ADDR() macro stub
  ACPI: APD: Remove ACPI_MODULE_NAME()
  ACPI: APD: Remove flags from struct apd_device_desc
  ACPI: APD: Add kerneldoc for properties in struct apd_device_desc
2020-10-13 14:43:16 +02:00
Hui Su
f78b8250a0 radix-tree: fix the comment of radix_tree_next_slot()
fix the comment of radix_tree_next_slot():
interator --> iterator.

Signed-off-by: Hui Su <sh_def@163.com>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2020-10-13 08:41:26 -04:00
Matthew Wilcox (Oracle)
ca7b639e86 XArray: Fix xas_reload for multi-index entries
xas_reload() was only checking that the head entry was still at the
head index.  If the entry has been split, that's not enough as there
may be a different entry at the specified index now.

Solve this by checking the slot for the requested index instead of the
head index.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
2020-10-13 08:41:26 -04:00