linux-block.git
10 months agotools/iio: Add memory allocation failure check for trigger_name
Zhu Jun [Wed, 28 Aug 2024 09:31:29 +0000 (02:31 -0700)]
tools/iio: Add memory allocation failure check for trigger_name

Added a check to handle memory allocation failure for `trigger_name`
and return `-ENOMEM`.

Signed-off-by: Zhu Jun <zhujun2@cmss.chinamobile.com>
Link: https://patch.msgid.link/20240828093129.3040-1-zhujun2@cmss.chinamobile.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: imu: st_lsm6dsx: Remove useless dev_fwnode() calls
Andy Shevchenko [Mon, 26 Aug 2024 21:22:40 +0000 (00:22 +0300)]
iio: imu: st_lsm6dsx: Remove useless dev_fwnode() calls

The device property APIs designed that way that they will return an error when
there is no valid fwnode provided. Moreover, the check for NULL of dev_fwnode()
is not fully correct as in some (currently rare) cases it may contain an error
pointer. This is not a problem anyway (see keyword 'valid' above) that's why
the code works properly even without this change.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://patch.msgid.link/20240826212344.866928-3-andy.shevchenko@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: imu: st_lsm6dsx: Use iio_read_acpi_mount_matrix() helper
Andy Shevchenko [Mon, 26 Aug 2024 21:22:39 +0000 (00:22 +0300)]
iio: imu: st_lsm6dsx: Use iio_read_acpi_mount_matrix() helper

Replace the duplicate ACPI "ROTM" data parsing code with the new
shared iio_read_acpi_mount_matrix() helper.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://patch.msgid.link/20240826212344.866928-2-andy.shevchenko@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: adc: mcp320x: Drop vendorless compatible strings
Rob Herring (Arm) [Mon, 26 Aug 2024 19:17:28 +0000 (14:17 -0500)]
iio: adc: mcp320x: Drop vendorless compatible strings

The vendorless compatible strings are deprecated and weren't retained
when the binding was converted to schema. As a result, they are listed
as undocumented when running "make dt_compatible_check". Rather than add
them back to the schema, let's just drop them as they are unnecessary.
Furthermore, they are unnecessary as the SPI matching will strip the
vendor prefix on compatible string and match that against the
spi_device_id table.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240826191728.1415189-1-robh@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: dac: ad5449: drop support for platform data
Bartosz Golaszewski [Wed, 14 Aug 2024 09:26:29 +0000 (11:26 +0200)]
iio: dac: ad5449: drop support for platform data

There are no longer any users of the platform data struct. Remove
support for it from the driver.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://patch.msgid.link/20240814092629.9862-1-brgl@bgdev.pl
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: adc: xilinx-ams: use device_* to iterate over device child nodes
Javier Carrasco [Tue, 20 Aug 2024 19:02:26 +0000 (21:02 +0200)]
iio: adc: xilinx-ams: use device_* to iterate over device child nodes

Use `device_for_each_child_node_scoped()` in `ams_parse_firmware()`
to explicitly state device child node access, and simplify the child
node handling as it is not required outside the loop.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Link: https://patch.msgid.link/20240820-device_child_node_access-v3-1-1ee09bdedb9e@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: ABI: document ad4695 new attributes
David Lechner [Tue, 20 Aug 2024 15:58:38 +0000 (10:58 -0500)]
iio: ABI: document ad4695 new attributes

The ad4695 driver now supports calibration using the
in_voltageY_calib{scale,bias}[_available] attributes.

Only one of these was documented before. This adds rest.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240820-ad4695-gain-offset-v1-4-c8f6e3b47551@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agodoc: iio: ad4695: update for calibration support
David Lechner [Tue, 20 Aug 2024 15:58:37 +0000 (10:58 -0500)]
doc: iio: ad4695: update for calibration support

Calibration support has been added to the ad4695 driver, so update the
documentation to reflect this.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240820-ad4695-gain-offset-v1-3-c8f6e3b47551@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: adc: ad4695: implement calibration support
David Lechner [Tue, 20 Aug 2024 15:58:36 +0000 (10:58 -0500)]
iio: adc: ad4695: implement calibration support

The AD4695 has a calibration feature that allows the user to compensate
for variations in the analog front end. This implements this feature in
the driver using the standard `calibgain` and `calibbias` attributes.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240820-ad4695-gain-offset-v1-2-c8f6e3b47551@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: adc: ad4695: add 2nd regmap for 16-bit registers
David Lechner [Tue, 20 Aug 2024 15:58:35 +0000 (10:58 -0500)]
iio: adc: ad4695: add 2nd regmap for 16-bit registers

The AD4695 and similar chips have some multibyte registers that have
to be read/written in a single operation. So we need to add a 2nd regmap
for these registers.

These registers are removed from the 8-bit regmap allowable ranges and
AD4695_MAX_REG is dropped since it would be ambiguous now.

debugfs register access is also updated to automatically use the correct
regmap depending on the register address.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240820-ad4695-gain-offset-v1-1-c8f6e3b47551@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: bmi323: peripheral in lowest power state on suspend
Denis Benato [Sat, 24 Aug 2024 14:11:22 +0000 (16:11 +0200)]
iio: bmi323: peripheral in lowest power state on suspend

The bmi323 is mounted on some devices that are powered
by an internal battery: help in reducing system overall power drain
while the system is in s2idle or the imu driver is not loaded
by resetting it in its lowest power draining state.

Signed-off-by: Denis Benato <benato.denis96@gmail.com>
Link: https://patch.msgid.link/20240824141122.334620-2-benato.denis96@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: accel: bmc150: Improve bmc150_apply_bosc0200_acpi_orientation()
Andy Shevchenko [Fri, 23 Aug 2024 23:01:07 +0000 (02:01 +0300)]
iio: accel: bmc150: Improve bmc150_apply_bosc0200_acpi_orientation()

By using ACPI_HANDLE() the handler argument can be retrieved directly.
Replace ACPI_COMPANION() + dereference with ACPI_HANDLE().

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://patch.msgid.link/20240823230107.745900-1-andy.shevchenko@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: accel: bmc150: use fwnode_irq_get_byname()
Andy Shevchenko [Fri, 23 Aug 2024 23:00:56 +0000 (02:00 +0300)]
iio: accel: bmc150: use fwnode_irq_get_byname()

Use the generic fwnode_irq_get_byname() in place of of_irq_get_byname()
to get the IRQ number from the interrupt pin.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://patch.msgid.link/20240823230056.745872-1-andy.shevchenko@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: proximity: cros_ec_mkbp_proximity: Switch to including mod_devicetable.h for...
Andy Shevchenko [Fri, 23 Aug 2024 22:07:18 +0000 (01:07 +0300)]
iio: proximity: cros_ec_mkbp_proximity: Switch to including mod_devicetable.h for struct of_device_id definition

of.h was only included for this definition, so include the correct header
instead.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://patch.msgid.link/20240823220718.743596-1-andy.shevchenko@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: magnetometer: ak8975: Add AK09118 support
Danila Tikhonov [Sun, 18 Aug 2024 22:29:42 +0000 (00:29 +0200)]
iio: magnetometer: ak8975: Add AK09118 support

Add additional AK09118 to the magnetometer driver which has the same
register mapping and scaling as the AK09112 device.

Signed-off-by: Danila Tikhonov <danila@jiaxyga.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://patch.msgid.link/20240819-ak09918-v4-4-f0734d14cfb9@mainlining.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agodt-bindings: iio: magnetometer: Add ak09118
Danila Tikhonov [Sun, 18 Aug 2024 22:29:41 +0000 (00:29 +0200)]
dt-bindings: iio: magnetometer: Add ak09118

Document asahi-kasei,ak09918 compatible as a fallback compatible,
ak09918 is register compatible with ak09912.

Signed-off-by: Danila Tikhonov <danila@jiaxyga.com>
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20240819-ak09918-v4-3-f0734d14cfb9@mainlining.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: magnetometer: ak8975: Fix reading for ak099xx sensors
Barnabás Czémán [Sun, 18 Aug 2024 22:29:40 +0000 (00:29 +0200)]
iio: magnetometer: ak8975: Fix reading for ak099xx sensors

Move ST2 reading with overflow handling after measurement data
reading.
ST2 register read have to be read after read measurment data,
because it means end of the reading and realease the lock on the data.
Remove ST2 read skip on interrupt based waiting because ST2 required to
be read out at and of the axis read.

Fixes: 57e73a423b1e ("iio: ak8975: add ak09911 and ak09912 support")
Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://patch.msgid.link/20240819-ak09918-v4-2-f0734d14cfb9@mainlining.org
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: magnetometer: ak8975: Relax failure on unknown id
Barnabás Czémán [Sun, 18 Aug 2024 22:29:39 +0000 (00:29 +0200)]
iio: magnetometer: ak8975: Relax failure on unknown id

Relax failure when driver gets an unknown device id for
allow probe for register compatible devices.

Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
Link: https://patch.msgid.link/20240819-ak09918-v4-1-f0734d14cfb9@mainlining.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoMerge tag 'fpga-for-6.12-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git...
Greg Kroah-Hartman [Tue, 3 Sep 2024 10:08:18 +0000 (12:08 +0200)]
Merge tag 'fpga-for-6.12-rc1' of ssh://gitolite./linux/kernel/git/fpga/linux-fpga into char-misc-next

Xu writes:

FPGA Manager changes for 6.12-rc1

FPGA unit test:

- Macro's change improves fpga tests using deferred actions

FPGA vendor drivers:

- Wolfram's change renames confusing variables for Altera & Xilinx
  drivers.

All patches have been reviewed on the mailing list, and have been in the
last linux-next releases (as part of our for-next branch).

Signed-off-by: Xu Yilun <yilun.xu@intel.com>
* tag 'fpga-for-6.12-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/fpga/linux-fpga:
  fpga: zynq-fpga: Rename 'timeout' variable as 'time_left'
  fpga: socfpga: Rename 'timeout' variable as 'time_left'
  fpga: Simplify and improve fpga region test using deferred actions
  fpga: Simplify and improve fpga bridge test using deferred actions
  fpga: Simplify and improve fpga mgr test using deferred actions

10 months agoMerge tag 'coresight-next-v6.12' of ssh://gitolite.kernel.org/pub/scm/linux/kernel...
Greg Kroah-Hartman [Tue, 3 Sep 2024 10:07:03 +0000 (12:07 +0200)]
Merge tag 'coresight-next-v6.12' of ssh://gitolite./linux/kernel/git/coresight/linux into char-misc-next

Suzuki writes:

coresight: updates for Linux v6.12

CoreSight/hwtracing subsystem updates targeting Linux v6.12:
 - Miscellaneous fixes and cleanups
 - TraceID allocation per sink, allowing system with > 110 cores for
   perf tracing.

Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
* tag 'coresight-next-v6.12' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/coresight/linux:
  coresight: Make trace ID map spinlock local to the map
  coresight: Emit sink ID in the HW_ID packets
  coresight: Remove pending trace ID release mechanism
  coresight: Use per-sink trace ID maps for Perf sessions
  coresight: Make CPU id map a property of a trace ID map
  coresight: Expose map arguments in trace ID API
  coresight: Move struct coresight_trace_id_map to common header
  coresight: Clarify comments around the PID of the sink owner
  coresight: Remove unused ETM Perf stubs
  coresight: tmc: sg: Do not leak sg_table
  Coresight: Set correct cs_mode for dummy source to fix disable issue
  Coresight: Set correct cs_mode for TPDM to fix disable issue
  coresight: cti: use device_* to iterate over device child nodes

10 months agoMerge tag 'iio-for-6.12a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23...
Greg Kroah-Hartman [Tue, 3 Sep 2024 09:32:16 +0000 (11:32 +0200)]
Merge tag 'iio-for-6.12a' of ssh://gitolite./linux/kernel/git/jic23/iio into char-misc-testing

Jonathan writes:

IIO: 1st set of new device support, features and cleanup for 6.12

Includes a merge of spi-mos-config branch from spi.git that brings
support needed for the AD4000 driver.

Lots of new device support this time including 9 new drivers and substantial
changes to add new support to several more.

New device support
------------------

Given we have a lot of new support, I've subcategorized them:

Substantial changes, or new driver
**********************************

adi,ad4000
- New driver for this high speed ADC.
adi,ad4695
- New driver supporting AD4690, AD4696, AD4697 and AD4698 ADCs.
- Follow up series added triggered buffer support.
adi,ad7380
- Add support for single ended parts, AD7386, ADC7387, AD7388 and -4 variants.
  (driver previously only support differential parts).
  These variants have an additional front end MUX so only half the channels
  can be sampled efficiently.
adi,ad9467
- Refactor and extend driver to support ad9643, ad9449 and ad9652 high speed
  ADCs.
adi,adxl380
- New driver for this low power accelerometer.
adi,ltc2664
- New driver supporting LTC2664 and LTC2672 DACs.
microchip,pac1921
- New driver for this power/current monitor chip.
rohm,bh1745
- New driver for this RGBC colour sensor.
rohm,bu27034anuc
- The original bu27034 was canceled before mass production, so the
  driver is modified to support the BU27034ANUC which had some significant
  differences.  DT compatible changed to avoid chance of old driver ever
  binding to real hardware.
sciosense,ens210
- New driver for ens210, ens210a, ens211, ens212, ens213a, and ens215
  temperature and humidity sensors (all register compatible up to some
  conversion time differences)
sensiron,sdp500
- New driver for this differential pressure sensor.
tyhx,hx9023s
- New driver to support this capacitive proximity sensor.

Minor changes to support new devices
************************************

adi,adf4377
- Add support for the single output adf4378.
kionix,kxcjk-1013
- Add support for KX022-1020 accelerometer (binding and ID table only)
liteon,ltrf216a
- Add support for ltr-308.  A few minor differences in features set
rockchip,saradc
- Add ID for rk3576-saradc
sensortek,stk3310
- Add ID for stk3013 proximity sensor which (despite documentation) has
  an ambient light sensor and is compatible with existing parts.

Documentation updates
---------------------

Generalize ABI docs for shunt resistor attribute
Improve calibscale and calibbias related documentation.  A couple of follow
up patches to resolve duplicate documentation that resulted.

New core features
-----------------

backend
- Add option for debugfs - useful for test pattern control
- Use this for both adi-axi-adc and adi-axi-dac
trigger suspend
- Add functions to allow triggers to be suspended. This avoids problems
  when a device enters suspend to idle with a sysfs trigger. Use it for now
  in the bmi323 only.

New driver features
-------------------

adi,ad7192
- Add option to be a clock provider (+ additional clock config options)
adi,ad7380
- Add documentation for this fairly new driver.
adi,ad9461
- Provide control of test modes and backend validation blocks used
  to identify problems (via debugfs)
adi,ad9739
- Add backend debugfs and docs for what is provided via adi-axi-dac
avago,apds9960
- Add proximity and gesture calibration offset control
bosch,bmp280
- Triggered buffer support including adding raw+scale output for sysfs.
liteon,ltr390
- Add configuration of integration time and scale.
stm,dfsdm
- Convert this SD modulator driver to backend framework and add support
  for channel scaling + modern channel bindings.

Treewide cleanup
----------------

iio_dev->masklength: Making it private.
- Provide access function to read the core compute channel mask length
  and a macro to iterate over elements in the active_scan_mask.
- Enables marking masklength __private preventing drivers from
  writing it without triggering a build warning whilst minimizing overhead
  in what are typically hot paths.
- Convert all drivers and finally mark it private.
  Merge conflicts resolved in drivers applied after this point.
Constify regmap_bus
- These are never modified, so mark them const.

Core cleanup
------------

backend
- A few late breaking bits of feedback (unused variable, error messages)
dma-buffer
- Namespace exports.
core
- Drop unused assignment.

Driver cleanup
--------------

adi,ad4695
- Fixing binding to reflect that common-mode-channel is a scalar.
adi,ad7280a
- Use __free(kfree) to simplify freeing of receive buffer.
adi,ad7606
- Various dt-binding cleanup and improvements.
- Fix oversampling related gpio handling.
- Make polarity of standby gpio match documentation.
- use guard() to simplify lock handling.
adi,ad7768
- Use device_for_each_child_node_scoped() instead of fwnode equivalent.
adi,ad7124
- Reduce SPI transfers by avoiding separate writes to different fields
  in the same register.
- Start the ADC in idle mode.
adi,adis
- Drop ifdefs in favor of IS_ENABLED.
adi,admv8818
- Fix wrong ABI docs.
asahi-kasei,ak8975
- Drop a prefix free compatible accidentally added recently.
aspeed,adc
- Use of_property_present() instead of of_find_property() to see if the
  property is there or not.
atmel,at91,
- Use __free(kfree) to simplify freeing of channel related array.
bosch,bma400
- Use __free(kfree) to simplify freeing a locally allocated string.
bosch,bmc150
- Add missing mount-matrix binding docs.
bosch,bme680
- Fix read/write to ensure multiple necessary sequential reads without
  device configuration change.
- Drop unnecessary type casts and use more appropriate data types.
- Drop some left over ACPI code as ACPI support was removed due to invalid
  IDs (and no known users).
- Sort headers consistently.
- Avoid unnecessary duplicate read and redundant read of gas config.
- Use bulk reads to get calibration data.
- Reorder allocation of IIO device to be prior to device init.
- Add remaining read/write buffers to the union used already for all others.
- Tidy up error checks for consistency of style, including dev_err_probe()
- Bring the device startup procedure inline with the vendor code.
- Reorder code so mode forcing is more obvious occurring where needed.
- Tidy up data locality in reading functions so no magic data is stored
  in state structures just to get it across function calls.
- Make a local lookup table static to avoid placing it on the stack.
bosch,bmp280
- Fix BME280 regmap to not include registers it doesn't have.
- Wait a little longer after config to allow for maximum possible necessary
  wait.
- Reorganize headers.
- Make conversion_time_max array static to avoid placing it on the stack.
maxim,max1363
- Use __free(kfree) to simplify freeing transmission buffer.
microchip,mcp3964
- Use devm_regulator_get_enable_read_voltage()
microchip,mcp3911
- Use devm_regulator_get_enable_read_voltage()
microchip,mcp4728
- Use devm_regulator_get_enable_read_voltage()
microchip,mcp4922
- Use devm_regulator_get_enable_read_voltage() and devm_* to allow
  dropping of explicit remove() callback.
onnn,noa1305
- Various tidy up.
- Provide available scale values.
- Make integration time configurable.
- Fix up integration time look up (/2 error)
ti,dac7311
- Check if spi_setup() succeeded.
ti,tsc2046
- Use __free(kfree) to simplify freeing rx and tx buffers.
- Use devm_regulator_get_enable_read_voltage()

Various minor fixes not called out explicitly.

* tag 'iio-for-6.12a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (250 commits)
  drivers:iio:Fix the NULL vs IS_ERR() bug for debugfs_create_dir()
  iio: sgp40: retain documentation in driver
  iio: ABI: remove duplicate in_resistance_calibbias
  dt-bindings: iio: st,stm32-adc: add top-level constraints
  iio: ABI: add missing calibbias attributes
  iio: ABI: add missing calibscale attributes
  iio: ABI: sort calibscale attributes
  iio: ABI: document calibscale_available attributes
  iio: light: ltr390: Calculate 'counts_per_uvi' dynamically
  iio: light: ltr390: Add ALS channel and support for gain and resolution
  doc: iio: ad4695: document buffered read
  iio: adc: ad4695: implement triggered buffer
  iio: proximity: hx9023s: Fix error code in hx9023s_property_get()
  iio: light: noa1305: Fix up integration time look up
  iio: humidity: Add support for ENS210
  dt-bindings: iio: humidity: add ENS210 sensor family
  iio: imu: adis16460: drop ifdef around CONFIG_DEBUG_FS
  iio: imu: adis16400: drop ifdef around CONFIG_DEBUG_FS
  iio: imu: adis16480: drop ifdef around CONFIG_DEBUG_FS
  iio: imu: adis16475: drop ifdef around CONFIG_DEBUG_FS
  ...

10 months agodrivers:iio:Fix the NULL vs IS_ERR() bug for debugfs_create_dir()
Yang Ruibin [Wed, 21 Aug 2024 08:39:08 +0000 (04:39 -0400)]
drivers:iio:Fix the NULL vs IS_ERR() bug for debugfs_create_dir()

The debugfs_create_dir() function returns error pointers.
It never returns NULL. So use IS_ERR() to check it.

Signed-off-by: Yang Ruibin <11162571@vivo.com>
Link: https://patch.msgid.link/20240821083911.3411-1-11162571@vivo.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: sgp40: retain documentation in driver
Andreas Klinger [Wed, 21 Aug 2024 07:53:56 +0000 (09:53 +0200)]
iio: sgp40: retain documentation in driver

Retain documentation on how the voc index is actually calculated in
driver code as it'll be removed in Documentation.

This is a follow up on patch "[PATCH] iio: ABI: remove duplicate
in_resistance_calibbias" from David.

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Link: https://patch.msgid.link/ZsWdFOIkDtEB9WGO@mail.your-server.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agoiio: ABI: remove duplicate in_resistance_calibbias
David Lechner [Tue, 20 Aug 2024 15:18:24 +0000 (10:18 -0500)]
iio: ABI: remove duplicate in_resistance_calibbias

In commit 0f718e10da81 ("iio: ABI: add missing calibbias attributes"),
the in_resistance_calibbias attribute was added to the main IIO ABI
documentation. This attribute is was already documented in
sysfs-bus-iio-chemical-sgp40. This resulted in a duplicate entry that is
causing documentation build warnings.

This removes the attribute from the sgp40 documentation in favor of the
main IIO ABI documentation since this attribute fits the established
pattern of standard IIO attributes.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/linux-next/20240820134739.50c771cb@canb.auug.org.au/
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240820-iio-abi-remove-dup-in_resistance_calibbias-v1-1-e64e58cabb14@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
10 months agodt-bindings: iio: st,stm32-adc: add top-level constraints
Krzysztof Kozlowski [Sun, 18 Aug 2024 17:29:51 +0000 (19:29 +0200)]
dt-bindings: iio: st,stm32-adc: add top-level constraints

Properties with variable number of items per each device are expected to
have widest constraints in top-level "properties:" block and further
customized (narrowed) in "if:then:".  Add missing top-level constraints
for clock-names.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20240818172951.121983-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agocoresight: Make trace ID map spinlock local to the map
James Clark [Mon, 22 Jul 2024 10:11:59 +0000 (11:11 +0100)]
coresight: Make trace ID map spinlock local to the map

Reduce contention on the lock by replacing the global lock with one for
each map.

Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-18-james.clark@linaro.org
11 months agocoresight: Emit sink ID in the HW_ID packets
James Clark [Mon, 22 Jul 2024 10:11:58 +0000 (11:11 +0100)]
coresight: Emit sink ID in the HW_ID packets

For Perf to be able to decode when per-sink trace IDs are used, emit the
sink that's being written to for each ETM.

Perf currently errors out if it sees a newer packet version so instead
of bumping it, add a new minor version field. This can be used to
signify new versions that have backwards compatible fields. Considering
this change is only for high core count machines, it doesn't make sense
to make a breaking change for everyone.

Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-17-james.clark@linaro.org
11 months agocoresight: Remove pending trace ID release mechanism
James Clark [Mon, 22 Jul 2024 10:11:57 +0000 (11:11 +0100)]
coresight: Remove pending trace ID release mechanism

Pending the release of IDs was a way of managing concurrent sysfs and
Perf sessions in a single global ID map. Perf may have finished while
sysfs hadn't, and Perf shouldn't release the IDs in use by sysfs and
vice versa.

Now that Perf uses its own exclusive ID maps, pending release doesn't
result in any different behavior than just releasing all IDs when the
last Perf session finishes. As part of the per-sink trace ID change, we
would have still had to make the pending mechanism work on a per-sink
basis, due to the overlapping ID allocations, so instead of making that
more complicated, just remove it.

Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-16-james.clark@linaro.org
11 months agocoresight: Use per-sink trace ID maps for Perf sessions
James Clark [Mon, 22 Jul 2024 10:11:56 +0000 (11:11 +0100)]
coresight: Use per-sink trace ID maps for Perf sessions

This will allow sessions with more than CORESIGHT_TRACE_IDS_MAX ETMs
as long as there are fewer than that many ETMs connected to each sink.

Each sink owns its own trace ID map, and any Perf session connecting to
that sink will allocate from it, even if the sink is currently in use by
other users. This is similar to the existing behavior where the dynamic
trace IDs are constant as long as there is any concurrent Perf session
active. It's not completely optimal because slightly more IDs will be
used than necessary, but the optimal solution involves tracking the PIDs
of each session and allocating ID maps based on the session owner. This
is difficult to do with the combination of per-thread and per-cpu modes
and some scheduling issues. The complexity of this isn't likely to worth
it because even with multiple users they'd just see a difference in the
ordering of ID allocations rather than hitting any limits (unless the
hardware does have too many ETMs connected to one sink).

Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-15-james.clark@linaro.org
11 months agocoresight: Make CPU id map a property of a trace ID map
James Clark [Mon, 22 Jul 2024 10:11:55 +0000 (11:11 +0100)]
coresight: Make CPU id map a property of a trace ID map

The global CPU ID mappings won't work for per-sink ID maps so move it to
the ID map struct. coresight_trace_id_release_all_pending() is hard
coded to operate on the default map, but once Perf sessions use their
own maps the pending release mechanism will be deleted. So it doesn't
need to be extended to accept a trace ID map argument at this point.

Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-14-james.clark@linaro.org
11 months agocoresight: Expose map arguments in trace ID API
James Clark [Mon, 22 Jul 2024 10:11:54 +0000 (11:11 +0100)]
coresight: Expose map arguments in trace ID API

The trace ID API is currently hard coded to always use the global map.
Add public versions that allow the map to be passed in so that Perf
mode can use per-sink maps. Keep the non-map versions so that sysfs
mode can continue to use the default global map.

System ID functions are unchanged because they will always use the
default map.

Signed-off-by: James Clark <james.clark@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Tested-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-13-james.clark@linaro.org
11 months agocoresight: Move struct coresight_trace_id_map to common header
James Clark [Mon, 22 Jul 2024 10:11:53 +0000 (11:11 +0100)]
coresight: Move struct coresight_trace_id_map to common header

The trace ID maps will need to be created and stored by the core and
Perf code so move the definition up to the common header.

Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Tested-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-12-james.clark@linaro.org
11 months agocoresight: Clarify comments around the PID of the sink owner
James Clark [Mon, 22 Jul 2024 10:11:52 +0000 (11:11 +0100)]
coresight: Clarify comments around the PID of the sink owner

"Process being monitored" and "pid of the process to monitor" imply that
this would be the same PID if there were two sessions targeting the same
process. But this is actually the PID of the process that did the Perf
event open call, rather than the target of the session. So update the
comments to make this clearer.

Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Tested-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-11-james.clark@linaro.org
11 months agocoresight: Remove unused ETM Perf stubs
James Clark [Mon, 22 Jul 2024 10:11:51 +0000 (11:11 +0100)]
coresight: Remove unused ETM Perf stubs

This file is never included anywhere if CONFIG_CORESIGHT is not set so
they are unused and aren't currently compile tested with any config so
remove them.

Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Tested-by: Leo Yan <leo.yan@arm.com>
Tested-by: Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240722101202.26915-10-james.clark@linaro.org
11 months agocoresight: tmc: sg: Do not leak sg_table
Suzuki K Poulose [Tue, 2 Jul 2024 13:28:46 +0000 (14:28 +0100)]
coresight: tmc: sg: Do not leak sg_table

Running perf with cs_etm on Juno triggers the following kmemleak warning !

:~# cat /sys/kernel/debug/kmemleak
 unreferenced object 0xffffff8806b6d720 (size 96):
 comm "perf", pid 562, jiffies 4297810960
 hex dump (first 32 bytes):
 38 d8 13 07 88 ff ff ff 00 d0 9e 85 c0 ff ff ff  8...............
 00 10 00 88 c0 ff ff ff 00 f0 ff f7 ff 00 00 00  ................
 backtrace (crc 1dbf6e00):
 [<ffffffc08107381c>] kmemleak_alloc+0xbc/0xd8
 [<ffffffc0802f9798>] kmalloc_trace_noprof+0x220/0x2e8
 [<ffffffc07bb71948>] tmc_alloc_sg_table+0x48/0x208 [coresight_tmc]
 [<ffffffc07bb71cbc>] tmc_etr_alloc_sg_buf+0xac/0x240 [coresight_tmc]
 [<ffffffc07bb72538>] tmc_alloc_etr_buf.constprop.0+0x1f0/0x260 [coresight_tmc]
 [<ffffffc07bb7280c>] alloc_etr_buf.constprop.0.isra.0+0x74/0xa8 [coresight_tmc]
 [<ffffffc07bb72950>] tmc_alloc_etr_buffer+0x110/0x260 [coresight_tmc]
 [<ffffffc07bb38afc>] etm_setup_aux+0x204/0x3b0 [coresight]
 [<ffffffc08025837c>] rb_alloc_aux+0x20c/0x318
 [<ffffffc08024dd84>] perf_mmap+0x2e4/0x7a0
 [<ffffffc0802cceb0>] mmap_region+0x3b0/0xa08
 [<ffffffc0802cd8a8>] do_mmap+0x3a0/0x500
 [<ffffffc080295328>] vm_mmap_pgoff+0x100/0x1d0
 [<ffffffc0802cadf8>] ksys_mmap_pgoff+0xb8/0x110
 [<ffffffc080020688>] __arm64_sys_mmap+0x38/0x58
 [<ffffffc080028fc0>] invoke_syscall.constprop.0+0x58/0x100

This due to the fact that we do not free the "sg_table" itself while
freeing up  the SG table and data pages. Fix this by freeing the sg_table
in tmc_free_sg_table().

Fixes: 99443ea19e8b ("coresight: Add generic TMC sg table framework")
Cc: Mike Leach <mike.leach@linaro.org>
Cc: James Clark <james.clark@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Link: https://lore.kernel.org/r/20240702132846.1677261-1-suzuki.poulose@arm.com
11 months agoCoresight: Set correct cs_mode for dummy source to fix disable issue
Jie Gan [Mon, 12 Aug 2024 04:28:44 +0000 (12:28 +0800)]
Coresight: Set correct cs_mode for dummy source to fix disable issue

The coresight_disable_source_sysfs function should verify the
mode of the coresight device before disabling the source.
However, the mode for the dummy source device is always set to
CS_MODE_DISABLED, resulting in the check consistently failing.
As a result, dummy source cannot be properly disabled.

Configure CS_MODE_SYSFS/CS_MODE_PERF during the enablement.
Configure CS_MODE_DISABLED during the disablement.

Fixes: 9d3ba0b6c056 ("Coresight: Add coresight dummy driver")
Signed-off-by: Jie Gan <quic_jiegan@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240812042844.2890115-1-quic_jiegan@quicinc.com
11 months agoCoresight: Set correct cs_mode for TPDM to fix disable issue
Jie Gan [Mon, 12 Aug 2024 04:30:43 +0000 (12:30 +0800)]
Coresight: Set correct cs_mode for TPDM to fix disable issue

The coresight_disable_source_sysfs function should verify the
mode of the coresight device before disabling the source.

However, the mode for the TPDM device is always set to
CS_MODE_DISABLED, resulting in the check consistently failing.
As a result, TPDM cannot be properly disabled.

Configure CS_MODE_SYSFS/CS_MODE_PERF during the enablement.
Configure CS_MODE_DISABLED during the disablement.

Fixes: b3c71626a933 ("Coresight: Add coresight TPDM source driver")
Signed-off-by: Jie Gan <quic_jiegan@quicinc.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240812043043.2890694-1-quic_jiegan@quicinc.com
11 months agocoresight: cti: use device_* to iterate over device child nodes
Javier Carrasco [Thu, 8 Aug 2024 15:12:37 +0000 (17:12 +0200)]
coresight: cti: use device_* to iterate over device child nodes

Drop the manual access to the fwnode of the device to iterate over its
child nodes. `device_for_each_child_node` macro provides direct access
to the child nodes, and given that they are only required within the
loop, the scoped variant of the macro can be used.

Use the `device_for_each_child_node_scoped` macro to iterate over the
direct child nodes of the device.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20240808-device_child_node_access-v2-1-fc757cc76650@gmail.com
11 months agoMerge 6.11-rc4 into char-misc-next
Greg Kroah-Hartman [Mon, 19 Aug 2024 04:02:26 +0000 (06:02 +0200)]
Merge 6.11-rc4 into char-misc-next

We need the char/misc fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 months agoLinux 6.11-rc4 v6.11-rc4
Linus Torvalds [Sun, 18 Aug 2024 20:17:27 +0000 (13:17 -0700)]
Linux 6.11-rc4

11 months agoMerge tag 'driver-core-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 18 Aug 2024 17:19:49 +0000 (10:19 -0700)]
Merge tag 'driver-core-6.11-rc4' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are two driver fixes for regressions from 6.11-rc1 due to the
  driver core change making a structure in a driver core callback const.

  These were missed by all testing EXCEPT for what Bart happened to be
  running, so I appreciate the fixes provided here for some
  odd/not-often-used driver subsystems that nothing else happened to
  catch.

  Both of these fixes have been in linux-next all week with no reported
  issues"

* tag 'driver-core-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  mips: sgi-ip22: Fix the build
  ARM: riscpc: ecard: Fix the build

11 months agoMerge tag 'char-misc-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sun, 18 Aug 2024 17:16:34 +0000 (10:16 -0700)]
Merge tag 'char-misc-6.11-rc4' of git://git./linux/kernel/git/gregkh/char-misc

Pull char / misc fixes from Greg KH:
 "Here are some small char/misc fixes for 6.11-rc4 to resolve reported
  problems. Included in here are:

   - fastrpc revert of a change that broke userspace

   - xillybus fixes for reported issues

  Half of these have been in linux-next this week with no reported
  problems, I don't know if the last bit of xillybus driver changes made
  it in, but they are 'obviously correct' so will be safe :)"

* tag 'char-misc-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  char: xillybus: Check USB endpoints when probing device
  char: xillybus: Refine workqueue handling
  Revert "misc: fastrpc: Restrict untrusted app to attach to privileged PD"
  char: xillybus: Don't destroy workqueue from work item running on it

11 months agoMerge tag 'tty-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Linus Torvalds [Sun, 18 Aug 2024 17:10:48 +0000 (10:10 -0700)]
Merge tag 'tty-6.11-rc4' of git://git./linux/kernel/git/gregkh/tty

Pull tty / serial fixes from Greg KH:
 "Here are some small tty and serial driver fixes for 6.11-rc4 to
  resolve some reported problems. Included in here are:

   - conmakehash.c userspace build issues

   - fsl_lpuart driver fix

   - 8250_omap revert for reported regression

   - atmel_serial rts flag fix

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

* tag 'tty-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  Revert "serial: 8250_omap: Set the console genpd always on if no console suspend"
  tty: atmel_serial: use the correct RTS flag.
  tty: vt: conmakehash: remove non-portable code printing comment header
  tty: serial: fsl_lpuart: mark last busy before uart_add_one_port

11 months agoMerge tag 'usb-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sun, 18 Aug 2024 16:59:06 +0000 (09:59 -0700)]
Merge tag 'usb-6.11-rc4' of git://git./linux/kernel/git/gregkh/usb

Pull USB / Thunderbolt driver fixes from Greg KH:
 "Here are some small USB and Thunderbolt driver fixes for 6.11-rc4 to
  resolve some reported issues. Included in here are:

   - thunderbolt driver fixes for reported problems

   - typec driver fixes

   - xhci fixes

   - new device id for ljca usb driver

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

* tag 'usb-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  xhci: Fix Panther point NULL pointer deref at full-speed re-enumeration
  usb: misc: ljca: Add Lunar Lake ljca GPIO HID to ljca_gpio_hids[]
  Revert "usb: typec: tcpm: clear pd_event queue in PORT_RESET"
  usb: typec: ucsi: Fix the return value of ucsi_run_command()
  usb: xhci: fix duplicate stall handling in handle_tx_event()
  usb: xhci: Check for xhci->interrupters being allocated in xhci_mem_clearup()
  thunderbolt: Mark XDomain as unplugged when router is removed
  thunderbolt: Fix memory leaks in {port|retimer}_sb_regs_write()

11 months agoMerge tag 'for-6.11-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sun, 18 Aug 2024 15:50:36 +0000 (08:50 -0700)]
Merge tag 'for-6.11-rc3-tag' of git://git./linux/kernel/git/kdave/linux

Pull more btrfs fixes from David Sterba:
 "A more fixes. We got reports that shrinker added in 6.10 still causes
  latency spikes and the fixes don't handle all corner cases. Due to
  summer holidays we're taking a shortcut to disable it for release
  builds and will fix it in the near future.

   - only enable extent map shrinker for DEBUG builds, temporary quick
     fix to avoid latency spikes for regular builds

   - update target inode's ctime on unlink, mandated by POSIX

   - properly take lock to read/update block group's zoned variables

   - add counted_by() annotations"

* tag 'for-6.11-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: only enable extent map shrinker for DEBUG builds
  btrfs: zoned: properly take lock to read/update block group's zoned variables
  btrfs: tree-checker: add dev extent item checks
  btrfs: update target inode's ctime on unlink
  btrfs: send: annotate struct name_cache_entry with __counted_by()

11 months agofuse: Initialize beyond-EOF page contents before setting uptodate
Jann Horn [Tue, 6 Aug 2024 19:51:42 +0000 (21:51 +0200)]
fuse: Initialize beyond-EOF page contents before setting uptodate

fuse_notify_store(), unlike fuse_do_readpage(), does not enable page
zeroing (because it can be used to change partial page contents).

So fuse_notify_store() must be more careful to fully initialize page
contents (including parts of the page that are beyond end-of-file)
before marking the page uptodate.

The current code can leave beyond-EOF page contents uninitialized, which
makes these uninitialized page contents visible to userspace via mmap().

This is an information leak, but only affects systems which do not
enable init-on-alloc (via CONFIG_INIT_ON_ALLOC_DEFAULT_ON=y or the
corresponding kernel command line parameter).

Link: https://bugs.chromium.org/p/project-zero/issues/detail?id=2574
Cc: stable@kernel.org
Fixes: a1d75f258230 ("fuse: add store request")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
11 months agoMerge tag 'mm-hotfixes-stable-2024-08-17-19-34' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sun, 18 Aug 2024 02:50:16 +0000 (19:50 -0700)]
Merge tag 'mm-hotfixes-stable-2024-08-17-19-34' of git://git./linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "16 hotfixes. All except one are for MM. 10 of these are cc:stable and
  the others pertain to post-6.10 issues.

  As usual with these merges, singletons and doubletons all over the
  place, no identifiable-by-me theme. Please see the lovingly curated
  changelogs to get the skinny"

* tag 'mm-hotfixes-stable-2024-08-17-19-34' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  mm/migrate: fix deadlock in migrate_pages_batch() on large folios
  alloc_tag: mark pages reserved during CMA activation as not tagged
  alloc_tag: introduce clear_page_tag_ref() helper function
  crash: fix riscv64 crash memory reserve dead loop
  selftests: memfd_secret: don't build memfd_secret test on unsupported arches
  mm: fix endless reclaim on machines with unaccepted memory
  selftests/mm: compaction_test: fix off by one in check_compaction()
  mm/numa: no task_numa_fault() call if PMD is changed
  mm/numa: no task_numa_fault() call if PTE is changed
  mm/vmalloc: fix page mapping if vm_area_alloc_pages() with high order fallback to order 0
  mm/memory-failure: use raw_spinlock_t in struct memory_failure_cpu
  mm: don't account memmap per-node
  mm: add system wide stats items category
  mm: don't account memmap on failure
  mm/hugetlb: fix hugetlb vs. core-mm PT locking
  mseal: fix is_madv_discard()

11 months agoMerge tag 'powerpc-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sun, 18 Aug 2024 02:23:02 +0000 (19:23 -0700)]
Merge tag 'powerpc-6.11-2' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix crashes on 85xx with some configs since the recent hugepd rework.

 - Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL on some
   platforms.

 - Don't enable offline cores when changing SMT modes, to match existing
   userspace behaviour.

Thanks to Christophe Leroy, Dr. David Alan Gilbert, Guenter Roeck, Nysal
Jan K.A, Shrikanth Hegde, Thomas Gleixner, and Tyrel Datwyler.

* tag 'powerpc-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/topology: Check if a core is online
  cpu/SMT: Enable SMT only if a core is online
  powerpc/mm: Fix boot warning with hugepages and CONFIG_DEBUG_VIRTUAL
  powerpc/mm: Fix size of allocated PGDIR
  soc: fsl: qbman: remove unused struct 'cgr_comp'

11 months agoMerge tag 'v6.11-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 17 Aug 2024 23:31:12 +0000 (16:31 -0700)]
Merge tag 'v6.11-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - fix for clang warning - additional null check

 - fix for cached write with posix locks

 - flexible structure fix

* tag 'v6.11-rc3-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: smb2pdu.h: Use static_assert() to check struct sizes
  smb3: fix lock breakage for cached writes
  smb/client: avoid possible NULL dereference in cifs_free_subrequest()

11 months agoMerge tag 'i2c-for-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa...
Linus Torvalds [Sat, 17 Aug 2024 23:23:05 +0000 (16:23 -0700)]
Merge tag 'i2c-for-6.11-rc4' of git://git./linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "I2C core fix replacing IS_ENABLED() with IS_REACHABLE()

  For host drivers, there are two fixes:

   - Tegra I2C Controller: Addresses a potential double-locking issue
     during probe. ACPI devices are not IRQ-safe when invoking runtime
     suspend and resume functions, so the irq_safe flag should not be
     set.

   - Qualcomm GENI I2C Controller: Fixes an oversight in the exit path
     of the runtime_resume() function, which was missed in the previous
     release"

* tag 'i2c-for-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: tegra: Do not mark ACPI devices as irq safe
  i2c: Use IS_REACHABLE() for substituting empty ACPI functions
  i2c: qcom-geni: Add missing geni_icc_disable in geni_i2c_runtime_resume

11 months agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sat, 17 Aug 2024 17:04:01 +0000 (10:04 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Two small fixes to the mpi3mr driver. One to avoid oversize
  allocations in tracing and the other to fix an uninitialized spinlock
  in the user to driver feature request code (used to trigger dumps and
  the like)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mpi3mr: Avoid MAX_PAGE_ORDER WARNING for buffer allocations
  scsi: mpi3mr: Add missing spin_lock_init() for mrioc->trigger_lock

11 months agoMerge tag 'xfs-6.11-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Linus Torvalds [Sat, 17 Aug 2024 16:51:28 +0000 (09:51 -0700)]
Merge tag 'xfs-6.11-fixes-3' of git://git./fs/xfs/xfs-linux

Pull xfs fixes from Chandan Babu:

 - Check for presence of only 'attr' feature before scrubbing an inode's
   attribute fork.

 - Restore the behaviour of setting AIL thread to TASK_INTERRUPTIBLE for
   long (i.e. 50ms) sleep durations to prevent high load averages.

 - Do not allow users to change the realtime flag of a file unless the
   datadev and rtdev both support fsdax access modes.

* tag 'xfs-6.11-fixes-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: conditionally allow FS_XFLAG_REALTIME changes if S_DAX is set
  xfs: revert AIL TASK_KILLABLE threshold
  xfs: attr forks require attr, not attr2

11 months agoMerge tag 'bcachefs-2024-08-16' of git://evilpiepirate.org/bcachefs
Linus Torvalds [Sat, 17 Aug 2024 16:46:10 +0000 (09:46 -0700)]
Merge tag 'bcachefs-2024-08-16' of git://evilpiepirate.org/bcachefs

Pull bcachefs fixes from Kent OverstreetL

 - New on disk format version, bcachefs_metadata_version_disk_accounting_inum

   This adds one more disk accounting counter, which counts disk usage
   and number of extents per inode number. This lets us track
   fragmentation, for implementing defragmentation later, and it also
   counts disk usage per inode in all snapshots, which will be a useful
   thing to expose to users.

 - One performance issue we've observed is threads spinning when they
   should be waiting for dirty keys in the key cache to be flushed by
   journal reclaim, so we now have hysteresis for the waiting thread, as
   well as improving the tracepoint and a new time_stat, for tracking
   time blocked waiting on key cache flushing.

... and various assorted smaller fixes.

* tag 'bcachefs-2024-08-16' of git://evilpiepirate.org/bcachefs:
  bcachefs: Fix locking in __bch2_trans_mark_dev_sb()
  bcachefs: fix incorrect i_state usage
  bcachefs: avoid overflowing LRU_TIME_BITS for cached data lru
  bcachefs: Fix forgetting to pass trans to fsck_err()
  bcachefs: Increase size of cuckoo hash table on too many rehashes
  bcachefs: bcachefs_metadata_version_disk_accounting_inum
  bcachefs: Kill __bch2_accounting_mem_mod()
  bcachefs: Make bkey_fsck_err() a wrapper around fsck_err()
  bcachefs: Fix warning in __bch2_fsck_err() for trans not passed in
  bcachefs: Add a time_stat for blocked on key cache flush
  bcachefs: Improve trans_blocked_journal_reclaim tracepoint
  bcachefs: Add hysteresis to waiting on btree key cache flush
  lib/generic-radix-tree.c: Fix rare race in __genradix_ptr_alloc()
  bcachefs: Convert for_each_btree_node() to lockrestart_do()
  bcachefs: Add missing downgrade table entry
  bcachefs: disk accounting: ignore unknown types
  bcachefs: bch2_accounting_invalid() fixup
  bcachefs: Fix bch2_trigger_alloc when upgrading from old versions
  bcachefs: delete faulty fastpath in bch2_btree_path_traverse_cached()

11 months agoiio: ABI: add missing calibbias attributes
David Lechner [Thu, 15 Aug 2024 17:22:13 +0000 (12:22 -0500)]
iio: ABI: add missing calibbias attributes

There are a number of calibbias and calibbias_available attributes that
are being used by various drivers that have not been documented yet.

This adds attributes found by searching the code for:

    BIT(IIO_CHAN_INFO_CALIBSCALE)

A couple of not quite alphabetical order attributes were moved while
touching this.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-4-536b2fea8620@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: ABI: add missing calibscale attributes
David Lechner [Thu, 15 Aug 2024 17:22:12 +0000 (12:22 -0500)]
iio: ABI: add missing calibscale attributes

This adds additional calibscale attributes to the ABI documentation for
instances found in drivers by searching the code for:

    BIT(IIO_CHAN_INFO_CALIBSCALE)

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-3-536b2fea8620@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: ABI: sort calibscale attributes
David Lechner [Thu, 15 Aug 2024 17:22:11 +0000 (12:22 -0500)]
iio: ABI: sort calibscale attributes

Sort calibscale attributes so that when we add more, they can also be
added in alphabetical order.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-2-536b2fea8620@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: ABI: document calibscale_available attributes
David Lechner [Thu, 15 Aug 2024 17:22:10 +0000 (12:22 -0500)]
iio: ABI: document calibscale_available attributes

There are a number of light sensor drivers that have various
calibscale_available attributes. Up to now, these were missing from
the documentation.

Kernel version 4.8 is used since the first use appears to be in
commit eb869ade30a6 ("iio: Add tcs3472 color light sensor driver").

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-1-536b2fea8620@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: light: ltr390: Calculate 'counts_per_uvi' dynamically
Abhash Jha [Wed, 14 Aug 2024 11:31:34 +0000 (17:01 +0530)]
iio: light: ltr390: Calculate 'counts_per_uvi' dynamically

counts_per_uvi depends on the current value of gain and resolution.
Hence, we cannot use the hardcoded value 96.
The `counts_per_uvi` function gives the count based on the current gain
and resolution (integration time).

Signed-off-by: Abhash Jha <abhashkumarjha123@gmail.com>
Link: https://patch.msgid.link/20240814113135.14575-3-abhashkumarjha123@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: light: ltr390: Add ALS channel and support for gain and resolution
Abhash Jha [Wed, 14 Aug 2024 11:31:33 +0000 (17:01 +0530)]
iio: light: ltr390: Add ALS channel and support for gain and resolution

Add new ALS channel and allow reading lux and scale values.
Also provide gain and resolution configuration for ALS channel.
Add automatic mode switching between the UVS and ALS channel
based on which channel is being accessed.
The default mode in which the sensor start is ALS mode.

Signed-off-by: Abhash Jha <abhashkumarjha123@gmail.com>
Link: https://patch.msgid.link/20240814113135.14575-2-abhashkumarjha123@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agodoc: iio: ad4695: document buffered read
David Lechner [Tue, 13 Aug 2024 17:26:41 +0000 (12:26 -0500)]
doc: iio: ad4695: document buffered read

Update the ad4695 documentation to say that buffered reads are
supported. Since there are 4 possible modes of reading conversion data,
it is useful to know which one is actually being used, namely the
advanced sequencer mode.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240813-iio-adc-ad4695-buffered-read-v2-2-9bb19fc1924b@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: adc: ad4695: implement triggered buffer
David Lechner [Tue, 13 Aug 2024 17:26:40 +0000 (12:26 -0500)]
iio: adc: ad4695: implement triggered buffer

This implements buffered reads for the ad4695 driver using the typical
triggered buffer implementation, including adding a soft timestamp
channel.

The chip has 4 different modes for doing conversions. The driver is
using the advanced sequencer mode since that is the only mode that
allows individual configuration of all aspects each channel (e.g.
bipolar config currently and oversampling to be added in the future).

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/20240813-iio-adc-ad4695-buffered-read-v2-1-9bb19fc1924b@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: proximity: hx9023s: Fix error code in hx9023s_property_get()
Dan Carpenter [Mon, 12 Aug 2024 06:43:05 +0000 (09:43 +0300)]
iio: proximity: hx9023s: Fix error code in hx9023s_property_get()

If we're returning because "reg >= HX9023S_CH_NUM" then set the error code
to -ENIVAL instead of success.

Fixes: 60df548277b7 ("iio: proximity: Add driver support for TYHX's HX9023S capacitive proximity sensor")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/49b5a9bc-e5ca-43a7-a665-313eb06fbe27@stanley.mountain
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: light: noa1305: Fix up integration time look up
Marek Vasut [Wed, 14 Aug 2024 19:19:09 +0000 (21:19 +0200)]
iio: light: noa1305: Fix up integration time look up

The current code is always iterating over two fields in the
noa1305_int_time_available array. Fix iteration limit, which
has to be halved to avoid out of bounds access in case the
value that is being looked up is not in the array.

Fixes: 025f23cfebad ("iio: light: noa1305: Make integration time configurable")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Suggested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patch.msgid.link/20240814191946.81386-1-marex@denx.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agoiio: humidity: Add support for ENS210
Joshua Felmeden [Mon, 5 Aug 2024 08:12:53 +0000 (09:12 +0100)]
iio: humidity: Add support for ENS210

Add support for ENS210/ENS210A/ENS211/ENS212/ENS213A/ENS215.

The ENS21x is a family of temperature and relative humidity sensors with
accuracies tailored to the needs of specific applications.

Signed-off-by: Joshua Felmeden <jfelmeden@thegoodpenguin.co.uk>
Link: https://patch.msgid.link/20240805-ens21x-v6-2-5bb576ef26a6@thegoodpenguin.co.uk
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agodt-bindings: iio: humidity: add ENS210 sensor family
Joshua Felmeden [Mon, 5 Aug 2024 08:12:52 +0000 (09:12 +0100)]
dt-bindings: iio: humidity: add ENS210 sensor family

Add device tree documentation for ENS210 family of temperature and
humidity sensors

Signed-off-by: Joshua Felmeden <jfelmeden@thegoodpenguin.co.uk>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20240805-ens21x-v6-1-5bb576ef26a6@thegoodpenguin.co.uk
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
11 months agobcachefs: Fix locking in __bch2_trans_mark_dev_sb()
Kent Overstreet [Sun, 5 May 2024 03:48:58 +0000 (23:48 -0400)]
bcachefs: Fix locking in __bch2_trans_mark_dev_sb()

We run this in full RW mode now, so we have to guard against the
superblock buffer being reallocated.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
11 months agoMerge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Linus Torvalds [Sat, 17 Aug 2024 00:08:02 +0000 (17:08 -0700)]
Merge tag 'pull-fixes' of git://git./linux/kernel/git/viro/vfs

Pull memcg-v1 fix from Al Viro:
 "memcg_write_event_control() oops fix"

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  memcg_write_event_control(): fix a user-triggerable oops

11 months agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Sat, 17 Aug 2024 00:02:32 +0000 (17:02 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Fix the arm64 __get_mem_asm() to use the _ASM_EXTABLE_##type##ACCESS()
   macro instead of the *_ERR() one in order to avoid writing -EFAULT to
   the value register in case of a fault

 - Initialise all elements of the acpi_early_node_map[] to NUMA_NO_NODE.
   Prior to this fix, only the first element was initialised

 - Move the KASAN random tag seed initialisation after the per-CPU areas
   have been initialised (prng_state is __percpu)

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Fix KASAN random tag seed initialization
  arm64: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE
  arm64: uaccess: correct thinko in __get_mem_asm()

11 months agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 16 Aug 2024 23:59:05 +0000 (16:59 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "One fix for the new T-Head TH1520 clk driver that marks a bus clk
  critical so that it isn't turned off during late init which breaks
  emmc-sdio"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: thead: fix dependency on clk_ignore_unused

11 months agoMerge tag 'block-6.11-20240824' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 16 Aug 2024 21:03:31 +0000 (14:03 -0700)]
Merge tag 'block-6.11-20240824' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - Fix corruption issues with s390/dasd (Eric, Stefan)

 - Fix a misuse of non irq locking grab of a lock (Li)

 - MD pull request with a single data corruption fix for raid1 (Yu)

* tag 'block-6.11-20240824' of git://git.kernel.dk/linux:
  block: Fix lockdep warning in blk_mq_mark_tag_wait
  md/raid1: Fix data corruption for degraded array with slow disk
  s390/dasd: fix error recovery leading to data corruption on ESE devices
  s390/dasd: Remove DMA alignment

11 months agoMerge tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 16 Aug 2024 21:00:05 +0000 (14:00 -0700)]
Merge tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a comment in the uapi header using the wrong member name (Caleb)

 - Fix KCSAN warning for a debug check in sqpoll (me)

 - Two more NAPI tweaks (Olivier)

* tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux:
  io_uring: fix user_data field name in comment
  io_uring/sqpoll: annotate debug task == current with data_race()
  io_uring/napi: remove duplicate io_napi_entry timeout assignation
  io_uring/napi: check napi_enabled in io_napi_add() before proceeding

11 months agoMerge tag 'devicetree-fixes-for-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 16 Aug 2024 20:50:33 +0000 (13:50 -0700)]
Merge tag 'devicetree-fixes-for-6.11-2' of git://git./linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Fix a possible (but unlikely) out-of-bounds read in interrupts
   parsing code

 - Add AT25 EEPROM "fujitsu,mb85rs256" compatible

 - Update Konrad Dybcio's email

* tag 'devicetree-fixes-for-6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  of/irq: Prevent device address out-of-bounds read in interrupt map walk
  dt-bindings: eeprom: at25: add fujitsu,mb85rs256 compatible
  dt-bindings: Batch-update Konrad Dybcio's email

11 months agobtrfs: only enable extent map shrinker for DEBUG builds
Qu Wenruo [Fri, 16 Aug 2024 01:10:38 +0000 (10:40 +0930)]
btrfs: only enable extent map shrinker for DEBUG builds

Although there are several patches improving the extent map shrinker,
there are still reports of too frequent shrinker behavior, taking too
much CPU for the kswapd process.

So let's only enable extent shrinker for now, until we got more
comprehensive understanding and a better solution.

Link: https://lore.kernel.org/linux-btrfs/3df4acd616a07ef4d2dc6bad668701504b412ffc.camel@intelfx.name/
Link: https://lore.kernel.org/linux-btrfs/c30fd6b3-ca7a-4759-8a53-d42878bf84f7@gmail.com/
Fixes: 956a17d9d050 ("btrfs: add a shrinker for extent maps")
CC: stable@vger.kernel.org # 6.10+
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
11 months agoMerge tag 'thermal-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 16 Aug 2024 18:49:07 +0000 (11:49 -0700)]
Merge tag 'thermal-6.11-rc4' of git://git./linux/kernel/git/rafael/linux-pm

Pull thermal control fix from Rafael Wysocki:
 "Fix a Bang-bang thermal governor issue causing it to fail to reset the
  state of cooling devices if they are 'on' to start with, but the
  thermal zone temperature is always below the corresponding trip point
  (Rafael Wysocki)"

* tag 'thermal-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: gov_bang_bang: Use governor_data to reduce overhead
  thermal: gov_bang_bang: Add .manage() callback
  thermal: gov_bang_bang: Split bang_bang_control()
  thermal: gov_bang_bang: Call __thermal_cdev_update() directly

11 months agoMerge tag 'acpi-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 16 Aug 2024 18:43:54 +0000 (11:43 -0700)]
Merge tag 'acpi-6.11-rc4' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Fix an issue related to the ACPI EC device handling that causes the
  _REG control method to be evaluated for EC operation regions that are
  not expected to be used.

  This confuses the platform firmware and provokes various types of
  misbehavior on some systems (Rafael Wysocki)"

* tag 'acpi-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: EC: Evaluate _REG outside the EC scope more carefully
  ACPICA: Add a depth argument to acpi_execute_reg_methods()
  Revert "ACPI: EC: Evaluate orphan _REG under EC device"

11 months agoMerge tag 'libnvdimm-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 16 Aug 2024 18:36:40 +0000 (11:36 -0700)]
Merge tag 'libnvdimm-fixes-6.11-rc4' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull libnvdimm fix from Ira Weiny:
 "Commit f467fee48da4 ("block: move the dax flag to queue_limits") broke
  the DAX tests by skipping over the legacy pmem mapping pages case.

  Set the DAX flag in this case as well"

* tag 'libnvdimm-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  nvdimm/pmem: Set dax flag for all 'PFN_MAP' cases

11 months agoio_uring: fix user_data field name in comment io_uring-6.11-20240824
Caleb Sander Mateos [Fri, 16 Aug 2024 18:15:23 +0000 (12:15 -0600)]
io_uring: fix user_data field name in comment

io_uring_cqe's user_data field refers to `sqe->data`, but io_uring_sqe
does not have a data field. Fix the comment to say `sqe->user_data`.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Link: https://github.com/axboe/liburing/pull/1206
Link: https://lore.kernel.org/r/20240816181526.3642732-1-csander@purestorage.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
11 months agoMerge tag 'rust-fixes-6.11' of https://github.com/Rust-for-Linux/linux
Linus Torvalds [Fri, 16 Aug 2024 18:24:06 +0000 (11:24 -0700)]
Merge tag 'rust-fixes-6.11' of https://github.com/Rust-for-Linux/linux

Pull rust fixes from Miguel Ojeda:

 - Fix '-Os' Rust 1.80.0+ builds adding more intrinsics (also tweaked in
   upstream Rust for the upcoming 1.82.0).

 - Fix support for the latest version of rust-analyzer due to a change
   on rust-analyzer config file semantics (considered a fix since most
   developers use the latest version of the tool, which is the only one
   actually supported by upstream). I am discussing stability of the
   config file with upstream -- they may be able to start versioning it.

 - Fix GCC 14 builds due to '-fmin-function-alignment' not skipped for
   libclang (bindgen).

 - A couple Kconfig fixes around '{RUSTC,BINDGEN}_VERSION_TEXT' to
   suppress error messages in a foreign architecture chroot and to use a
   proper default format.

 - Clean 'rust-analyzer' target warning due to missing recursive make
   invocation mark.

 - Clean Clippy warning due to missing indentation in docs.

 - Clean LLVM 19 build warning due to removed 3dnow feature upstream.

* tag 'rust-fixes-6.11' of https://github.com/Rust-for-Linux/linux:
  rust: x86: remove `-3dnow{,a}` from target features
  kbuild: rust-analyzer: mark `rust_is_available.sh` invocation as recursive
  rust: add intrinsics to fix `-Os` builds
  kbuild: rust: skip -fmin-function-alignment in bindgen flags
  rust: Support latest version of `rust-analyzer`
  rust: macros: indent list item in `module!`'s docs
  rust: fix the default format for CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT
  rust: suppress error messages from CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT

11 months agoMerge tag 'riscv-for-linus-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 16 Aug 2024 18:18:09 +0000 (11:18 -0700)]
Merge tag 'riscv-for-linus-6.11-rc4' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - reintroduce the text patching global icache flush

 - fix syscall entry code to correctly initialize a0, which manifested
   as a strace bug

 - XIP kernels now map the entire kernel, which fixes boot under at
   least DEBUG_VIRTUAL=y

 - initialize all nodes in the acpi_early_node_map initializer

 - fix OOB access in the Andes vendor extension probing code

 - A new key for scalar misaligned access performance in hwprobe, which
   correctly treat the values as an enum (as opposed to a bitmap)

* tag 'riscv-for-linus-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix out-of-bounds when accessing Andes per hart vendor extension array
  RISC-V: hwprobe: Add SCALAR to misaligned perf defines
  RISC-V: hwprobe: Add MISALIGNED_PERF key
  RISC-V: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE
  riscv: change XIP's kernel_map.size to be size of the entire kernel
  riscv: entry: always initialize regs->a0 to -ENOSYS
  riscv: Re-introduce global icache flush in patch_text_XXX()

11 months agoMerge tag 'trace-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Fri, 16 Aug 2024 18:12:29 +0000 (11:12 -0700)]
Merge tag 'trace-v6.11-rc3' of git://git./linux/kernel/git/trace/linux-trace

Pull tracing fixes from Steven Rostedt:
 "A couple of fixes for tracing:

   - Prevent a NULL pointer dereference in the error path of RTLA tool

   - Fix an infinite loop bug when reading from the ring buffer when
     closed. If there's a thread trying to read the ring buffer and it
     gets closed by another thread, the one reading will go into an
     infinite loop when the buffer is empty instead of exiting back to
     user space"

* tag 'trace-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rtla/osnoise: Prevent NULL dereference in error handling
  tracing: Return from tracing_buffers_read() if the file has been closed

11 months agoMerge tag 'keys-trusted-next-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 16 Aug 2024 18:05:25 +0000 (11:05 -0700)]
Merge tag 'keys-trusted-next-6.11-rc4' of git://git./linux/kernel/git/jarkko/linux-tpmdd

Pull key fixes from Jarkko Sakkinen:
 "Two bug fixes for a memory corruption bug and a memory leak bug in the
  DCP trusted keys type.

  Just as a reminder DCP was a crypto coprocessor in i.MX SoCs"

* tag 'keys-trusted-next-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  KEYS: trusted: dcp: fix leak of blob encryption key
  KEYS: trusted: fix DCP blob payload length assignment

11 months agobcachefs: fix incorrect i_state usage
Kent Overstreet [Fri, 16 Aug 2024 16:44:49 +0000 (12:44 -0400)]
bcachefs: fix incorrect i_state usage

Reported-by: syzbot+95e40eae71609e40d851@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
11 months agobcachefs: avoid overflowing LRU_TIME_BITS for cached data lru
Kent Overstreet [Fri, 16 Aug 2024 16:41:46 +0000 (12:41 -0400)]
bcachefs: avoid overflowing LRU_TIME_BITS for cached data lru

Reported-by: syzbot+510b0b28f8e6de64d307@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
11 months agobcachefs: Fix forgetting to pass trans to fsck_err()
Kent Overstreet [Fri, 16 Aug 2024 16:31:29 +0000 (12:31 -0400)]
bcachefs: Fix forgetting to pass trans to fsck_err()

Reported-by: syzbot+e3938cd6d761b78750e6@syzkaller.appspotmail.com
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
11 months agobcachefs: Increase size of cuckoo hash table on too many rehashes
Kent Overstreet [Thu, 15 Aug 2024 17:02:55 +0000 (13:02 -0400)]
bcachefs: Increase size of cuckoo hash table on too many rehashes

Also, improve the calculation of the new table size, so that it can
shrink when needed.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
11 months agoMerge tag 'for-6.11/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device...
Linus Torvalds [Fri, 16 Aug 2024 16:07:34 +0000 (09:07 -0700)]
Merge tag 'for-6.11/dm-fixes' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mikulas Patocka:

 - fix misbehavior if suspend or resume is interrupted by a signal

 - fix wrong indentation in dm-crypt.rst

 - fix memory allocation failure in dm-persistent-data

* tag 'for-6.11/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm persistent data: fix memory allocation failure
  Documentation: dm-crypt.rst warning + error fix
  dm resume: don't return EINVAL when signalled
  dm suspend: return -ERESTARTSYS instead of -EINTR

11 months agoMerge tag 'iommu-fixes-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 16 Aug 2024 15:56:45 +0000 (08:56 -0700)]
Merge tag 'iommu-fixes-v6.11-rc3' of git://git./linux/kernel/git/iommu/linux

Pull iommu fixes from Joerg Roedel:

 - Bring back a lost return statement in io-page-fault code

 - Remove an unused function declaration

* tag 'iommu-fixes-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
  iommu: Remove unused declaration iommu_sva_unbind_gpasid()
  iommu: Restore lost return in iommu_report_device_fault()

11 months agoMerge tag 'gpio-fixes-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 16 Aug 2024 15:47:50 +0000 (08:47 -0700)]
Merge tag 'gpio-fixes-for-v6.11-rc4' of git://git./linux/kernel/git/brgl/linux

Pull gpio fix from Bartosz Golaszewski:

 - add the shutdown() callback to gpio-mlxbf3 in order to disable
   interrupts during graceful reboot

* tag 'gpio-fixes-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: mlxbf3: Support shutdown() function

11 months agoMerge tag 'sound-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 16 Aug 2024 15:39:41 +0000 (08:39 -0700)]
Merge tag 'sound-6.11-rc4' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "All small fixes, mostly for usual suspects, HD-audio and USB-audio
  device-specific fixes / quirks. The Cirrus codec support took the
  update of SPI header as well. Other than that, there is a regression
  fix in the sanity check of ALSA timer code"

* tag 'sound-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/tas2781: Use correct endian conversion
  ALSA: usb-audio: Support Yamaha P-125 quirk entry
  ALSA: hda: cs35l41: Remove redundant call to hda_cs_dsp_control_remove()
  ALSA: hda: cs35l56: Remove redundant call to hda_cs_dsp_control_remove()
  ALSA: hda/tas2781: fix wrong calibrated data order
  ALSA: usb-audio: Add delay quirk for VIVO USB-C-XE710 HEADSET
  ALSA: hda/realtek: Add support for new HP G12 laptops
  ALSA: hda/realtek: Fix noise from speakers on Lenovo IdeaPad 3 15IAU7
  ALSA: timer: Relax start tick time check for slave timer elements
  spi: Add empty versions of ACPI functions

11 months agoMerge tag 'drm-fixes-2024-08-16' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 16 Aug 2024 15:35:50 +0000 (08:35 -0700)]
Merge tag 'drm-fixes-2024-08-16' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Weekly drm fixes, mostly amdgpu and xe. The larger amdgpu fix is for a
  new IP block introduced in rc1, so should be fine. The xe fixes
  contain some missed fixes from the end of the previous round along
  with some fixes which required precursor changes, but otherwise
  everything seems fine,

  mediatek:
   - fix cursor crash

  amdgpu:
   - Fix MES ring buffer overflow
   - DCN 3.5 fix
   - DCN 3.2.1 fix
   - DP MST fix
   - Cursor fixes
   - JPEG fixes
   - Context ops validation
   - MES 12 fixes
   - VCN 5.0 fix
   - HDP fix

  panel:
   - dt bindings style fix
   - orientation quirks

  rockchip:
   - inno-hdmi: fix infoframe upload

  v3d:
   - fix OOB access in v3d_csd_job_run()

  xe:
   - Validate user fence during creation
   - Fix use after free when client stats are captured
   - SRIOV fixes
   - Runtime PM fixes"

* tag 'drm-fixes-2024-08-16' of https://gitlab.freedesktop.org/drm/kernel: (37 commits)
  drm/xe: Hold a PM ref when GT TLB invalidations are inflight
  drm/xe: Drop xe_gt_tlb_invalidation_wait
  drm/xe: Add xe_gt_tlb_invalidation_fence_init helper
  drm/xe/pf: Fix VF config validation on multi-GT platforms
  drm/xe: Build PM into GuC CT layer
  drm/xe/vf: Fix register value lookup
  drm/xe: Fix use after free when client stats are captured
  drm/xe: Take a ref to xe file when user creates a VM
  drm/xe: Add ref counting for xe_file
  drm/xe: Move part of xe_file cleanup to a helper
  drm/xe: Validate user fence during creation
  drm/rockchip: inno-hdmi: Fix infoframe upload
  drm/amd/amdgpu: add HDP_SD support on gc 12.0.0/1
  drm/amdgpu: Update kmd_fw_shared for VCN5
  drm/amd/amdgpu: command submission parser for JPEG
  drm/amdgpu/mes12: fix suspend issue
  drm/amdgpu/mes12: sw/hw fini for unified mes
  drm/amdgpu/mes12: configure two pipes hardware resources
  drm/amdgpu/mes12: adjust mes12 sw/hw init for multiple pipes
  drm/amdgpu/mes12: add mes pipe switch support
  ...

11 months agoMerge tag 'i2c-host-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel...
Wolfram Sang [Fri, 16 Aug 2024 14:23:51 +0000 (16:23 +0200)]
Merge tag 'i2c-host-fixes-6.11-rc4' of git://git./linux/kernel/git/andi.shyti/linux into i2c/for-current

Two fixes in this update:

Tegra I2C Controller: Addresses a potential double-locking issue
during probe. ACPI devices are not IRQ-safe when invoking runtime
suspend and resume functions, so the irq_safe flag should not be
set.

Qualcomm GENI I2C Controller: Fixes an oversight in the exit path
of the runtime_resume() function, which was missed in the
previous release.

11 months agothermal: gov_bang_bang: Use governor_data to reduce overhead
Rafael J. Wysocki [Tue, 13 Aug 2024 14:29:11 +0000 (16:29 +0200)]
thermal: gov_bang_bang: Use governor_data to reduce overhead

After running once, the for_each_trip_desc() loop in
bang_bang_manage() is pure needless overhead because it is not going to
make any changes unless a new cooling device has been bound to one of
the trips in the thermal zone or the system is resuming from sleep.

For this reason, make bang_bang_manage() set governor_data for the
thermal zone and check it upfront to decide whether or not it needs to
do anything.

However, governor_data needs to be reset in some cases to let
bang_bang_manage() know that it should walk the trips again, so add an
.update_tz() callback to the governor and make the core additionally
invoke it during system resume.

To avoid affecting the other users of that callback unnecessarily, add
a special notification reason for system resume, THERMAL_TZ_RESUME, and
also pass it to __thermal_zone_device_update() called during system
resume for consistency.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/2285575.iZASKD2KPV@rjwysocki.net
11 months agothermal: gov_bang_bang: Add .manage() callback
Rafael J. Wysocki [Tue, 13 Aug 2024 14:27:33 +0000 (16:27 +0200)]
thermal: gov_bang_bang: Add .manage() callback

After recent changes, the Bang-bang governor may not adjust the
initial configuration of cooling devices to the actual situation.

Namely, if a cooling device bound to a certain trip point starts in
the "on" state and the thermal zone temperature is below the threshold
of that trip point, the trip point may never be crossed on the way up
in which case the state of the cooling device will never be adjusted
because the thermal core will never invoke the governor's
.trip_crossed() callback.  [Note that there is no issue if the zone
temperature is at the trip threshold or above it to start with because
.trip_crossed() will be invoked then to indicate the start of thermal
mitigation for the given trip.]

To address this, add a .manage() callback to the Bang-bang governor
and use it to ensure that all of the thermal instances managed by the
governor have been initialized properly and the states of all of the
cooling devices involved have been adjusted to the current zone
temperature as appropriate.

Fixes: 530c932bdf75 ("thermal: gov_bang_bang: Use .trip_crossed() instead of .throttle()")
Link: https://lore.kernel.org/linux-pm/1bfbbae5-42b0-4c7d-9544-e98855715294@piie.net/
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Link: https://patch.msgid.link/8419356.T7Z3S40VBb@rjwysocki.net
11 months agothermal: gov_bang_bang: Split bang_bang_control()
Rafael J. Wysocki [Tue, 13 Aug 2024 14:26:42 +0000 (16:26 +0200)]
thermal: gov_bang_bang: Split bang_bang_control()

Move the setting of the thermal instance target state from
bang_bang_control() into a separate function that will be also called
in a different place going forward.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/3313587.aeNJFYEL58@rjwysocki.net
11 months agothermal: gov_bang_bang: Call __thermal_cdev_update() directly
Rafael J. Wysocki [Tue, 13 Aug 2024 14:25:19 +0000 (16:25 +0200)]
thermal: gov_bang_bang: Call __thermal_cdev_update() directly

Instead of clearing the "updated" flag for each cooling device
affected by the trip point crossing in bang_bang_control() and
walking all thermal instances to run thermal_cdev_update() for all
of the affected cooling devices, call __thermal_cdev_update()
directly for each of them.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/13583081.uLZWGnKmhe@rjwysocki.net
11 months agochar: xillybus: Check USB endpoints when probing device
Eli Billauer [Fri, 16 Aug 2024 07:02:00 +0000 (10:02 +0300)]
char: xillybus: Check USB endpoints when probing device

Ensure, as the driver probes the device, that all endpoints that the
driver may attempt to access exist and are of the correct type.

All XillyUSB devices must have a Bulk IN and Bulk OUT endpoint at
address 1. This is verified in xillyusb_setup_base_eps().

On top of that, a XillyUSB device may have additional Bulk OUT
endpoints. The information about these endpoints' addresses is deduced
from a data structure (the IDT) that the driver fetches from the device
while probing it. These endpoints are checked in setup_channels().

A XillyUSB device never has more than one IN endpoint, as all data
towards the host is multiplexed in this single Bulk IN endpoint. This is
why setup_channels() only checks OUT endpoints.

Reported-by: syzbot+eac39cba052f2e750dbe@syzkaller.appspotmail.com
Cc: stable <stable@kernel.org>
Closes: https://lore.kernel.org/all/0000000000001d44a6061f7a54ee@google.com/T/
Fixes: a53d1202aef1 ("char: xillybus: Add driver for XillyUSB (Xillybus variant for USB)").
Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Link: https://lore.kernel.org/r/20240816070200.50695-2-eli.billauer@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 months agochar: xillybus: Refine workqueue handling
Eli Billauer [Fri, 16 Aug 2024 07:01:59 +0000 (10:01 +0300)]
char: xillybus: Refine workqueue handling

As the wakeup work item now runs on a separate workqueue, it needs to be
flushed separately along with flushing the device's workqueue.

Also, move the destroy_workqueue() call to the end of the exit method,
so that deinitialization is done in the opposite order of
initialization.

Fixes: ccbde4b128ef ("char: xillybus: Don't destroy workqueue from work item running on it")
Cc: stable <stable@kernel.org>
Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Link: https://lore.kernel.org/r/20240816070200.50695-1-eli.billauer@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
11 months agomm/migrate: fix deadlock in migrate_pages_batch() on large folios
Gao Xiang [Mon, 29 Jul 2024 02:13:06 +0000 (10:13 +0800)]
mm/migrate: fix deadlock in migrate_pages_batch() on large folios

Currently, migrate_pages_batch() can lock multiple locked folios with an
arbitrary order.  Although folio_trylock() is used to avoid deadlock as
commit 2ef7dbb26990 ("migrate_pages: try migrate in batch asynchronously
firstly") mentioned, it seems try_split_folio() is still missing.

It was found by compaction stress test when I explicitly enable EROFS
compressed files to use large folios, which case I cannot reproduce with
the same workload if large folio support is off (current mainline).
Typically, filesystem reads (with locked file-backed folios) could use
another bdev/meta inode to load some other I/Os (e.g.  inode extent
metadata or caching compressed data), so the locking order will be:

  file-backed folios  (A)
     bdev/meta folios (B)

The following calltrace shows the deadlock:
   Thread 1 takes (B) lock and tries to take folio (A) lock
   Thread 2 takes (A) lock and tries to take folio (B) lock

[Thread 1]
INFO: task stress:1824 blocked for more than 30 seconds.
      Tainted: G           OE      6.10.0-rc7+ #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:stress          state:D stack:0     pid:1824  tgid:1824  ppid:1822   flags:0x0000000c
Call trace:
 __switch_to+0xec/0x138
 __schedule+0x43c/0xcb0
 schedule+0x54/0x198
 io_schedule+0x44/0x70
 folio_wait_bit_common+0x184/0x3f8
<-- folio mapping ffff00036d69cb18 index 996  (**)
 __folio_lock+0x24/0x38
 migrate_pages_batch+0x77c/0xea0 // try_split_folio (mm/migrate.c:1486:2)
// migrate_pages_batch (mm/migrate.c:1734:16)
<--- LIST_HEAD(unmap_folios) has
..
folio mapping 0xffff0000d184f1d8 index 1711;   (*)
folio mapping 0xffff0000d184f1d8 index 1712;
..
 migrate_pages+0xb28/0xe90
 compact_zone+0xa08/0x10f0
 compact_node+0x9c/0x180
 sysctl_compaction_handler+0x8c/0x118
 proc_sys_call_handler+0x1a8/0x280
 proc_sys_write+0x1c/0x30
 vfs_write+0x240/0x380
 ksys_write+0x78/0x118
 __arm64_sys_write+0x24/0x38
 invoke_syscall+0x78/0x108
 el0_svc_common.constprop.0+0x48/0xf0
 do_el0_svc+0x24/0x38
 el0_svc+0x3c/0x148
 el0t_64_sync_handler+0x100/0x130
 el0t_64_sync+0x190/0x198

[Thread 2]
INFO: task stress:1825 blocked for more than 30 seconds.
      Tainted: G           OE      6.10.0-rc7+ #6
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:stress          state:D stack:0     pid:1825  tgid:1825  ppid:1822   flags:0x0000000c
Call trace:
 __switch_to+0xec/0x138
 __schedule+0x43c/0xcb0
 schedule+0x54/0x198
 io_schedule+0x44/0x70
 folio_wait_bit_common+0x184/0x3f8
<-- folio = 0xfffffdffc6b503c0 (mapping == 0xffff0000d184f1d8 index == 1711) (*)
 __folio_lock+0x24/0x38
 z_erofs_runqueue+0x384/0x9c0 [erofs]
 z_erofs_readahead+0x21c/0x350 [erofs]       <-- folio mapping 0xffff00036d69cb18 range from [992, 1024] (**)
 read_pages+0x74/0x328
 page_cache_ra_order+0x26c/0x348
 ondemand_readahead+0x1c0/0x3a0
 page_cache_sync_ra+0x9c/0xc0
 filemap_get_pages+0xc4/0x708
 filemap_read+0x104/0x3a8
 generic_file_read_iter+0x4c/0x150
 vfs_read+0x27c/0x330
 ksys_pread64+0x84/0xd0
 __arm64_sys_pread64+0x28/0x40
 invoke_syscall+0x78/0x108
 el0_svc_common.constprop.0+0x48/0xf0
 do_el0_svc+0x24/0x38
 el0_svc+0x3c/0x148
 el0t_64_sync_handler+0x100/0x130
 el0t_64_sync+0x190/0x198

Link: https://lkml.kernel.org/r/20240729021306.398286-1-hsiangkao@linux.alibaba.com
Fixes: 5dfab109d519 ("migrate_pages: batch _unmap and _move")
Signed-off-by: Gao Xiang <hsiangkao@linux.alibaba.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
11 months agoalloc_tag: mark pages reserved during CMA activation as not tagged
Suren Baghdasaryan [Tue, 13 Aug 2024 15:07:57 +0000 (08:07 -0700)]
alloc_tag: mark pages reserved during CMA activation as not tagged

During CMA activation, pages in CMA area are prepared and then freed
without being allocated.  This triggers warnings when memory allocation
debug config (CONFIG_MEM_ALLOC_PROFILING_DEBUG) is enabled.  Fix this by
marking these pages not tagged before freeing them.

Link: https://lkml.kernel.org/r/20240813150758.855881-2-surenb@google.com
Fixes: d224eb0287fb ("codetag: debug: mark codetags for reserved pages as empty")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org> [6.10]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
11 months agoalloc_tag: introduce clear_page_tag_ref() helper function
Suren Baghdasaryan [Tue, 13 Aug 2024 15:07:56 +0000 (08:07 -0700)]
alloc_tag: introduce clear_page_tag_ref() helper function

In several cases we are freeing pages which were not allocated using
common page allocators.  For such cases, in order to keep allocation
accounting correct, we should clear the page tag to indicate that the page
being freed is expected to not have a valid allocation tag.  Introduce
clear_page_tag_ref() helper function to be used for this.

Link: https://lkml.kernel.org/r/20240813150758.855881-1-surenb@google.com
Fixes: d224eb0287fb ("codetag: debug: mark codetags for reserved pages as empty")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Suggested-by: David Hildenbrand <david@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Sourav Panda <souravpanda@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org> [6.10]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>