This check has a signedness bug and does not work. If "length" is
larger than "PAGE_SIZE" then "PAGE_SIZE - length" is not negative
but instead it is a large unsigned value. Fortunately, Takashi Iwai
changed this code to use scnprint() instead of snprintf() so now
"length" is never larger than "PAGE_SIZE - 1" and the check can be
removed.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Pull thermal updates from Daniel Lezcano:
- Add support to enable/disable the thermal zones resulting on core
code and drivers cleanup (Andrzej Pietrasiewicz)
- Add generic netlink support for userspace notifications: events,
temperature and discovery commands (Daniel Lezcano)
- Fix redundant initialization for a ret variable (Colin Ian King)
- Remove the clock cooling code as it is used nowhere (Amit Kucheria)
- Add the rcar_gen3_thermal's r8a774e1 support (Marian-Cristian
Rotariu)
- Replace all references to thermal.txt in the documentation to the
corresponding yaml files (Amit Kucheria)
- Add maintainer entry for the IPA (Lukasz Luba)
- Add support for MSM8939 for the tsens (Shawn Guo)
- Update power allocator and devfreq cooling to SPDX licensing (Lukasz
Luba)
- Add Cannon Lake Low Power PCH support (Sumeet Pawnikar)
- Add tsensor support for V2 mediatek thermal system (Henry Yen)
- Fix thermal zone lookup by ID for the core code (Thierry Reding)
* tag 'thermal-v5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (40 commits)
thermal: intel: intel_pch_thermal: Add Cannon Lake Low Power PCH support
thermal: mediatek: Add tsensor support for V2 thermal system
thermal: mediatek: Prepare to add support for other platforms
thermal: Update power allocator and devfreq cooling to SPDX licensing
MAINTAINERS: update entry to thermal governors file name prefixing
thermal: core: Add thermal zone enable/disable notification
thermal: qcom: tsens-v0_1: Add support for MSM8939
dt-bindings: tsens: qcom: Document MSM8939 compatible
thermal: core: Fix thermal zone lookup by ID
thermal: int340x: processor_thermal: fix: update Jasper Lake PCI id
thermal: imx8mm: Support module autoloading
thermal: ti-soc-thermal: Fix reversed condition in ti_thermal_expose_sensor()
MAINTAINERS: Add maintenance information for IPA
thermal: rcar_gen3_thermal: Do not shadow thcode variable
dt-bindings: thermal: Get rid of thermal.txt and replace references
thermal: core: Move initialization after core initcall
thermal: netlink: Improve the initcall ordering
net: genetlink: Move initialization to core_initcall
thermal: rcar_gen3_thermal: Add r8a774e1 support
thermal/drivers/clock_cooling: Remove clock_cooling code
...
Starting from commit "thermal/int340x_thermal: Don't require IDSP to
exist", priv->current_uuid_index is initialized to -1. This value may
be passed to int3400_thermal_run_osc() from int3400_thermal_set_mode,
contributing to page fault when accessing int3400_thermal_uuids array
at index -1.
This commit adds a check on uuid value to int3400_thermal_run_osc.
Fixes: 8d485da0dd ("thermal/int340x_thermal: Don't require IDSP to exist")
Signed-off-by: Bartosz Szczepanek <bsz@semihalf.com>
Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@linux.intel.com>
[ rzhang: Add Fixes tag ]
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20200708134613.131555-1-bsz@semihalf.com
set_mode() is only called when tzd's mode is about to change. Actual
setting is performed in thermal_core, in thermal_zone_device_set_mode().
The meaning of set_mode() callback is actually to notify the driver about
the mode being changed and giving the driver a chance to oppose such
change.
To better reflect the purpose of the method rename it to change_mode()
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
[for acerhdf]
Acked-by: Peter Kaestle <peter@piie.net>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-12-andrzej.p@collabora.com
Use thermal_zone_device_{en|dis}able() and thermal_zone_device_is_enabled().
Consequently, all set_mode() implementations in drivers:
- can stop modifying tzd's "mode" member,
- shall stop taking tzd's lock, as it is taken in the helpers
- shall stop calling thermal_zone_device_update() as it is called in the
helpers
- can assume they are called when the mode truly changes, so checks to
verify that can be dropped
Not providing set_mode() by a driver no longer prevents the core from
being able to set tzd's mode, so the relevant check in mode_store() is
removed.
Other comments:
- acpi/thermal.c: tz->thermal_zone->mode will be updated only after we
return from set_mode(), so use function parameter in thermal_set_mode()
instead, no need to call acpi_thermal_check() in set_mode()
- thermal/imx_thermal.c: regmap writes and mode assignment are done in
thermal_zone_device_{en|dis}able() and set_mode() callback
- thermal/intel/intel_quark_dts_thermal.c: soc_dts_{en|dis}able() are a
part of set_mode() callback, so they don't need to modify tzd->mode, and
don't need to fall back to the opposite mode if unsuccessful, as the return
value will be propagated to thermal_zone_device_{en|dis}able() and
ultimately tzd's member will not be changed in thermal_zone_device_set_mode().
- thermal/of-thermal.c: no need to set zone->mode to DISABLED in
of_parse_thermal_zones() as a tzd is kzalloc'ed so mode is DISABLED anyway
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
[for acerhdf]
Acked-by: Peter Kaestle <peter@piie.net>
Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20200629122925.21729-8-andrzej.p@collabora.com
The platform vendor may expose an array of OEM-specific values to be used
in determining DPTF policy. These are obtained via the ODVP method, and
then simply exposed in sysfs. In addition, they are updated when a
notification is received or when the DPTF policy is changed by userland.
Conflicts:
drivers/thermal/intel/int340x_thermal/int3400_thermal.c
Signed-off-by: Matthew Garrett <mjg59@google.com>
Tested-by: Pandruvada, Srinivas <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Link: https://lore.kernel.org/r/20200414020953.255364-2-matthewgarrett@google.com
Pull thermal updates from Daniel Lezcano:
- Convert tsens configuration DT binding to yaml (Rajeshwari)
- Add interrupt support on the rcar sensor (Niklas Söderlund)
- Add a new Spreadtrum thermal driver (Baolin Wang)
- Add thermal binding for the fsl scu board, a new API to retrieve the
sensor id bound to the thermal zone and i.MX system controller sensor
(Anson Huang))
- Remove warning log when a deferred probe is requested on Exynos
(Marek Szyprowski)
- Add the thermal monitoring unit support for imx8mm with its DT
bindings (Anson Huang)
- Rephrase the Kconfig text for clarity (Linus Walleij)
- Use the gpio descriptor for the ti-soc-thermal (Linus Walleij)
- Align msg structure to 4 bytes for i.MX SC, fix the Kconfig
dependency, add the __may_be unused annotation for PM functions and
the COMPILE_TEST option for imx8mm (Anson Huang)
- Fix a dependency on regmap in Kconfig for qoriq (Yuantian Tang)
- Add DT binding and support for the rcar gen3 r8a77961 and improve the
error path on the rcar init function (Niklas Söderlund)
- Cleanup and improvements for the tsens Qcom sensor (Amit Kucheria)
- Improve code by removing lock and caching values in the rcar thermal
sensor (Niklas Söderlund)
- Cleanup in the qoriq drivers and add a call to
imx_thermal_unregister_legacy_cooling in the removal function (Anson
Huang)
- Remove redundant 'maxItems' in tsens and sprd DT bindings (Rob
Herring)
- Change the thermal DT bindings by making the cooling-maps optional
(Yuantian Tang)
- Add Tiger Lake support (Sumeet Pawnikar)
- Use scnprintf() for avoiding potential buffer overflow (Takashi Iwai)
- Make pkg_temp_lock a raw_spinlock_t(Clark Williams)
- Fix incorrect data types by changing them to signed on i.MX SC (Anson
Huang)
- Replace zero-length array with flexible-array member (Gustavo A. R.
Silva)
- Add support for i.MX8MP in the driver and in the DT bindings (Anson
Huang)
- Fix return value of the cpufreq_set_cur_state() function (Willy
Wolff)
- Remove abusing and scary WARN_ON in the cpufreq cooling device
(Daniel Lezcano)
- Fix build warning of incorrect argument type reported by sparse on
imx8mm (Anson Huang)
- Fix stub for the devfreq cooling device (Martin Blumenstingl)
- Fix cpu idle cooling documentation (Sergey Vidishev)
* tag 'thermal-v5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thermal/linux: (52 commits)
Documentation: cpu-idle-cooling: Fix diagram for 33% duty cycle
thermal: devfreq_cooling: inline all stubs for CONFIG_DEVFREQ_THERMAL=n
thermal: imx8mm: Fix build warning of incorrect argument type
thermal/drivers/cpufreq_cooling: Remove abusing WARN_ON
thermal/drivers/cpufreq_cooling: Fix return of cpufreq_set_cur_state
thermal: imx8mm: Add i.MX8MP support
dt-bindings: thermal: imx8mm-thermal: Add support for i.MX8MP
thermal: qcom: tsens.h: Replace zero-length array with flexible-array member
thermal: imx_sc_thermal: Fix incorrect data type
thermal: int340x_thermal: Use scnprintf() for avoiding potential buffer overflow
thermal: int340x: processor_thermal: Add Tiger Lake support
thermal/x86_pkg_temp: Make pkg_temp_lock a raw_spinlock_t
dt-bindings: thermal: make cooling-maps property optional
dt-bindings: thermal: qcom-tsens: Remove redundant 'maxItems'
dt-bindings: thermal: sprd: Remove redundant 'maxItems'
thermal: imx: Calling imx_thermal_unregister_legacy_cooling() in .remove
thermal: qoriq: Sort includes alphabetically
thermal: qoriq: Use devm_add_action_or_reset() to handle all cleanups
thermal: rcar_thermal: Remove lock in rcar_thermal_get_current_temp()
thermal: rcar_thermal: Do not store ctemp in rcar_thermal_priv
...
Based on 2 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation #
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 4122 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Enrico Weigelt <info@metux.net>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
int3400 only pushes the UUID into the firmware when the mode is flipped
to "enable". The current code only exposes the mode flag if the firmware
supports the PASSIVE_1 UUID, which not all machines do. Remove the
restriction.
Signed-off-by: Matthew Garrett <mjg59@google.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This cleans up the directory a bit, now that we have several other
platforms using platform-specific sub-directories. Compile-tested with
ARCH=x86 defconfig and the drivers explicitly enabled with menuconfig.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
