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- Fix race conditions related to thermal device operations that are not
protected against thermal device removal (Guenter Roeck).
- Fix error code in __thermal_cooling_device_register() (Dan Carpenter).
- Validate new cooling device state (coming from user space) in
cur_state_store() and reuse the max_state value from cooling device
structure in the sysfs interface (Viresh Kumar).
- Fix some possible name leaks in error paths in the thermal control
core code (Yang Yingliang).
- Detect TCC lock bit set in the intel_tcc_cooling driver and make it
refuse to update the TCC offset in that case (Zhang Rui).
- Add TCC cooling support for RaptorLake-S (Zhang Rui).
- Prevent accidental clearing of HFI status by one of the other
drivers using the same status register (Srinivas Pandruvada).
- Protect clearing of thermal status bits in Intel thermal control
drivers (Srinivas Pandruvada).
- Allow the HFI thermal control driver to ACK an HFI event for the
previously observed timestamp (Srinivas Pandruvada).
- Remove a pointless die_id check from the HFI thermal driver and
adjust the definition a data structure used by it (Ricardo Neri).
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Merge tag 'thermal-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These include thermal core fixes to protect thermal device operations
against thermal device removal, other thermal core fixes and updates
of Intel thermal control drivers.
Specifics:
- Fix race conditions related to thermal device operations that are
not protected against thermal device removal (Guenter Roeck)
- Fix error code in __thermal_cooling_device_register() (Dan
Carpenter)
- Validate new cooling device state (coming from user space) in
cur_state_store() and reuse the max_state value from cooling device
structure in the sysfs interface (Viresh Kumar)
- Fix some possible name leaks in error paths in the thermal control
core code (Yang Yingliang)
- Detect TCC lock bit set in the intel_tcc_cooling driver and make it
refuse to update the TCC offset in that case (Zhang Rui)
- Add TCC cooling support for RaptorLake-S (Zhang Rui)
- Prevent accidental clearing of HFI status by one of the other
drivers using the same status register (Srinivas Pandruvada)
- Protect clearing of thermal status bits in Intel thermal control
drivers (Srinivas Pandruvada)
- Allow the HFI thermal control driver to ACK an HFI event for the
previously observed timestamp (Srinivas Pandruvada)
- Remove a pointless die_id check from the HFI thermal driver and
adjust the definition a data structure used by it (Ricardo Neri)"
* tag 'thermal-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: intel: hfi: Remove a pointless die_id check
thermal: core: fix some possible name leaks in error paths
thermal: intel: hfi: ACK HFI for the same timestamp
thermal: intel: Protect clearing of thermal status bits
thermal: intel: Prevent accidental clearing of HFI status
thermal/core: Protect thermal device operations against thermal device removal
thermal/core: Remove thermal_zone_set_trips()
thermal/core: Protect sysfs accesses to thermal operations with thermal zone mutex
thermal/core: Protect hwmon accesses to thermal operations with thermal zone mutex
thermal/core: Introduce locked version of thermal_zone_device_update
thermal/core: Move parameter validation from __thermal_zone_get_temp to thermal_zone_get_temp
thermal/core: Ensure that thermal device is registered in thermal_zone_get_temp
thermal/core: Delete device under thermal device zone lock
thermal/core: Destroy thermal zone device mutex in release function
thermal: intel: intel_tcc_cooling: Add TCC cooling support for RaptorLake-S
thermal: intel: intel_tcc_cooling: Detect TCC lock bit
thermal: intel: hfi: Improve the type of hfi_features::nr_table_pages
thermal/core: fix error code in __thermal_cooling_device_register()
thermal: sysfs: Reuse cdev->max_state
thermal: Validate new state in cur_state_store()
- Update the ACPICA code in the kernel to the 20221020 upstream
version and fix a couple of issues in it:
* Make acpi_ex_load_op() match upstream implementation (Rafael
Wysocki).
* Add support for loong_arch-specific APICs in MADT (Huacai Chen).
* Add support for fixed PCIe wake event (Huacai Chen).
* Add EBDA pointer sanity checks (Vit Kabele).
* Avoid accessing VGA memory when EBDA < 1KiB (Vit Kabele).
* Add CCEL table support to both compiler/disassembler (Kuppuswamy
Sathyanarayanan).
* Add a couple of new UUIDs to the known UUID list (Bob Moore).
* Add support for FFH Opregion special context data (Sudeep Holla).
* Improve warning message for "invalid ACPI name" (Bob Moore).
* Add support for CXL 3.0 structures (CXIMS & RDPAS) in the CEDT
table (Alison Schofield).
* Prepare IORT support for revision E.e (Robin Murphy).
* Finish support for the CDAT table (Bob Moore).
* Fix error code path in acpi_ds_call_control_method() (Rafael
Wysocki).
* Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (Li
Zetao).
* Update the version of the ACPICA code in the kernel (Bob Moore).
- Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device
enumeration code (Giulio Benetti).
- Change the return type of the ACPI driver remove callback to void and
update its users accordingly (Dawei Li).
- Add general support for FFH address space type and implement the low-
level part of it for ARM64 (Sudeep Holla).
- Fix stale comments in the ACPI tables parsing code and make it print
more messages related to MADT (Hanjun Guo, Huacai Chen).
- Replace invocations of generic library functions with more kernel-
specific counterparts in the ACPI sysfs interface (Christophe JAILLET,
Xu Panda).
- Print full name paths of ACPI power resource objects during
enumeration (Kane Chen).
- Eliminate a compiler warning regarding a missing function prototype
in the ACPI power management code (Sudeep Holla).
- Fix and clean up the ACPI processor driver (Rafael Wysocki, Li Zhong,
Colin Ian King, Sudeep Holla).
- Add quirk for the HP Pavilion Gaming 15-cx0041ur to the ACPI EC
driver (Mia Kanashi).
- Add some mew ACPI backlight handling quirks and update some existing
ones (Hans de Goede).
- Make the ACPI backlight driver prefer the native backlight control
over vendor backlight control when possible (Hans de Goede).
- Drop unsetting ACPI APEI driver data on remove (Uwe Kleine-König).
- Use xchg_release() instead of cmpxchg() for updating new GHES cache
slots (Ard Biesheuvel).
- Clean up the ACPI APEI code (Sudeep Holla, Christophe JAILLET, Jay Lu).
- Add new I2C device enumeration quirks for Medion Lifetab S10346 and
Lenovo Yoga Tab 3 Pro (YT3-X90F) (Hans de Goede).
- Make the ACPI battery driver notify user space about adding new
battery hooks and removing the existing ones (Armin Wolf).
- Modify the pfr_update and pfr_telemetry drivers to use ACPI_FREE()
for freeing acpi_object structures to help diagnostics (Wang ShaoBo).
- Make the ACPI fan driver use sysfs_emit_at() in its sysfs interface
code (ye xingchen).
- Fix the _FIF package extraction failure handling in the ACPI fan
driver (Hanjun Guo).
- Fix the PCC mailbox handling error code path (Huisong Li).
- Avoid using PCC Opregions if there is no platform interrupt allocated
for this purpose (Huisong Li).
- Use sysfs_emit() instead of scnprintf() in the ACPI PAD driver and
CPPC library (ye xingchen).
- Fix some kernel-doc issues in the ACPI GSI processing code (Xiongfeng
Wang).
- Fix name memory leak in pnp_alloc_dev() (Yang Yingliang).
- Do not disable PNP devices on suspend when they cannot be re-enabled
on resume (Hans de Goede).
- Clean up the ACPI thermal driver a bit (Rafael Wysocki).
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Merge tag 'acpi-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and PNP updates from Rafael Wysocki:
"These include new code (for instance, support for the FFH address
space type and support for new firmware data structures in ACPICA),
some new quirks (mostly related to backlight handling and I2C
enumeration), a number of fixes and a fair amount of cleanups all
over.
Specifics:
- Update the ACPICA code in the kernel to the 20221020 upstream
version and fix a couple of issues in it:
- Make acpi_ex_load_op() match upstream implementation (Rafael
Wysocki)
- Add support for loong_arch-specific APICs in MADT (Huacai Chen)
- Add support for fixed PCIe wake event (Huacai Chen)
- Add EBDA pointer sanity checks (Vit Kabele)
- Avoid accessing VGA memory when EBDA < 1KiB (Vit Kabele)
- Add CCEL table support to both compiler/disassembler (Kuppuswamy
Sathyanarayanan)
- Add a couple of new UUIDs to the known UUID list (Bob Moore)
- Add support for FFH Opregion special context data (Sudeep
Holla)
- Improve warning message for "invalid ACPI name" (Bob Moore)
- Add support for CXL 3.0 structures (CXIMS & RDPAS) in the CEDT
table (Alison Schofield)
- Prepare IORT support for revision E.e (Robin Murphy)
- Finish support for the CDAT table (Bob Moore)
- Fix error code path in acpi_ds_call_control_method() (Rafael
Wysocki)
- Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (Li
Zetao)
- Update the version of the ACPICA code in the kernel (Bob Moore)
- Use ZERO_PAGE(0) instead of empty_zero_page in the ACPI device
enumeration code (Giulio Benetti)
- Change the return type of the ACPI driver remove callback to void
and update its users accordingly (Dawei Li)
- Add general support for FFH address space type and implement the
low- level part of it for ARM64 (Sudeep Holla)
- Fix stale comments in the ACPI tables parsing code and make it
print more messages related to MADT (Hanjun Guo, Huacai Chen)
- Replace invocations of generic library functions with more kernel-
specific counterparts in the ACPI sysfs interface (Christophe
JAILLET, Xu Panda)
- Print full name paths of ACPI power resource objects during
enumeration (Kane Chen)
- Eliminate a compiler warning regarding a missing function prototype
in the ACPI power management code (Sudeep Holla)
- Fix and clean up the ACPI processor driver (Rafael Wysocki, Li
Zhong, Colin Ian King, Sudeep Holla)
- Add quirk for the HP Pavilion Gaming 15-cx0041ur to the ACPI EC
driver (Mia Kanashi)
- Add some mew ACPI backlight handling quirks and update some
existing ones (Hans de Goede)
- Make the ACPI backlight driver prefer the native backlight control
over vendor backlight control when possible (Hans de Goede)
- Drop unsetting ACPI APEI driver data on remove (Uwe Kleine-König)
- Use xchg_release() instead of cmpxchg() for updating new GHES cache
slots (Ard Biesheuvel)
- Clean up the ACPI APEI code (Sudeep Holla, Christophe JAILLET, Jay
Lu)
- Add new I2C device enumeration quirks for Medion Lifetab S10346 and
Lenovo Yoga Tab 3 Pro (YT3-X90F) (Hans de Goede)
- Make the ACPI battery driver notify user space about adding new
battery hooks and removing the existing ones (Armin Wolf)
- Modify the pfr_update and pfr_telemetry drivers to use ACPI_FREE()
for freeing acpi_object structures to help diagnostics (Wang
ShaoBo)
- Make the ACPI fan driver use sysfs_emit_at() in its sysfs interface
code (ye xingchen)
- Fix the _FIF package extraction failure handling in the ACPI fan
driver (Hanjun Guo)
- Fix the PCC mailbox handling error code path (Huisong Li)
- Avoid using PCC Opregions if there is no platform interrupt
allocated for this purpose (Huisong Li)
- Use sysfs_emit() instead of scnprintf() in the ACPI PAD driver and
CPPC library (ye xingchen)
- Fix some kernel-doc issues in the ACPI GSI processing code
(Xiongfeng Wang)
- Fix name memory leak in pnp_alloc_dev() (Yang Yingliang)
- Do not disable PNP devices on suspend when they cannot be
re-enabled on resume (Hans de Goede)
- Clean up the ACPI thermal driver a bit (Rafael Wysocki)"
* tag 'acpi-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (67 commits)
ACPI: x86: Add skip i2c clients quirk for Medion Lifetab S10346
ACPI: APEI: EINJ: Refactor available_error_type_show()
ACPI: APEI: EINJ: Fix formatting errors
ACPI: processor: perflib: Adjust acpi_processor_notify_smm() return value
ACPI: processor: perflib: Rearrange acpi_processor_notify_smm()
ACPI: processor: perflib: Rearrange unregistration routine
ACPI: processor: perflib: Drop redundant parentheses
ACPI: processor: perflib: Adjust white space
ACPI: processor: idle: Drop unnecessary statements and parens
ACPI: thermal: Adjust critical.flags.valid check
ACPI: fan: Convert to use sysfs_emit_at() API
ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()
ACPI: battery: Call power_supply_changed() when adding hooks
ACPI: use sysfs_emit() instead of scnprintf()
ACPI: x86: Add skip i2c clients quirk for Lenovo Yoga Tab 3 Pro (YT3-X90F)
ACPI: APEI: Remove a useless include
PNP: Do not disable devices on suspend when they cannot be re-enabled on resume
ACPI: processor: Silence missing prototype warnings
ACPI: processor_idle: Silence missing prototype warnings
ACPI: PM: Silence missing prototype warning
...
Merge one more Intel thermal control change for 6.2-rc1:
- Remove a pointless die_id chec from the Intel HFI thermal control
driver (Ricardo Neri).
* thermal-intel:
thermal: intel: hfi: Remove a pointless die_id check
die_id is an u16 quantity. On single-die systems the default value of
die_id is 0. No need to check for negative values.
Plus, removing this check makes Coverity happy.
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
- Add Raptor Lake-S support to the intel_tcc_cooling driver (Zhang
Rui).
- Make the intel_tcc_cooling driver detect TCC locking (Zhang Rui).
- Address Coverity warning in intel_hfi_process_event() (Ricardo Neri).
- Prevent accidental clearing of HFI in the package thermal interrupt
status (Srinivas Pandruvada).
- Protect the clearing of status bits in MSR_IA32_PACKAGE_THERM_STATUS
and MSR_IA32_THERM_STATUS (Srinivas Pandruvada).
- Allow the HFI interrupt handler to ACK an event for the same
timestamp (Srinivas Pandruvada).
* thermal-intel:
thermal: intel: hfi: ACK HFI for the same timestamp
thermal: intel: Protect clearing of thermal status bits
thermal: intel: Prevent accidental clearing of HFI status
thermal: intel: intel_tcc_cooling: Add TCC cooling support for RaptorLake-S
thermal: intel: intel_tcc_cooling: Detect TCC lock bit
thermal: intel: hfi: Improve the type of hfi_features::nr_table_pages
In some error paths before device_register(), the names allocated
by dev_set_name() are not freed. Move dev_set_name() front to
device_register(), so the name can be freed while calling
put_device().
Fixes: 1dd7128b839f ("thermal/core: Fix null pointer dereference in thermal_release()")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Some processors issue more than one HFI interrupt with the same
timestamp. Each interrupt must be acknowledged to let the hardware issue
new HFI interrupts. But this can't be done without some additional flow
modification in the existing interrupt handling.
For background, the HFI interrupt is a package level thermal interrupt
delivered via a LVT. This LVT is common for both the CPU and package
level interrupts. Hence, all CPUs receive the HFI interrupts. But only
one CPU should process interrupt and others simply exit by issuing EOI
to LAPIC.
The current HFI interrupt processing flow:
1. Receive Thermal interrupt
2. Check if there is an active HFI status in MSR_IA32_THERM_STATUS
3. Try and get spinlock, one CPU will enter spinlock and others
will simply return from here to issue EOI.
(Let's assume CPU 4 is processing interrupt)
4. Check the stored time-stamp from the HFI memory time-stamp
5. if same
6. ignore interrupt, unlock and return
7. Copy the HFI message to local buffer
8. unlock spinlock
9. ACK HFI interrupt
10. Queue the message for processing in a work-queue
It is tempting to simply acknowledge all the interrupts even if they
have the same timestamp. This may cause some interrupts to not be
processed.
Let's say CPU5 is slightly late and reaches step 4 while CPU4 is
between steps 8 and 9.
Currently we simply ignore interrupts with the same timestamp. No
issue here for CPU5. When CPU4 acknowledges the interrupt, the next
HFI interrupt can be delivered.
If we acknowledge interrupts with the same timestamp (at step 6), there
is a race condition. Under the same scenario, CPU 5 will acknowledge
the HFI interrupt. This lets hardware generate another HFI interrupt,
before CPU 4 start executing step 9. Once CPU 4 complete step 9, it
will acknowledge the newly arrived HFI interrupt, without actually
processing it.
Acknowledge the interrupt when holding the spinlock. This avoids
contention of the interrupt acknowledgment.
Updated flow:
1. Receive HFI Thermal interrupt
2. Check if there is an active HFI status in MSR_IA32_THERM_STATUS
3. Try and get spin-lock
Let's assume CPU 4 is processing interrupt
4.1 Read MSR_IA32_PACKAGE_THERM_STATUS and check HFI status bit
4.2 If hfi status is 0
4.3 unlock spinlock
4.4 return
4.5 Check the stored time-stamp from the HFI memory time-stamp
5. if same
6.1 ACK HFI Interrupt,
6.2 unlock spinlock
6.3 return
7. Copy the HFI message to local buffer
8. ACK HFI interrupt
9. unlock spinlock
10. Queue the message for processing in a work-queue
To avoid taking the lock unnecessarily, intel_hfi_process_event() checks
the status of the HFI interrupt before taking the lock. If CPU5 is late,
when it starts processing the interrupt there are two scenarios:
a) CPU4 acknowledged the HFI interrupt before CPU5 read
MSR_IA32_THERM_STATUS. CPU5 exits.
b) CPU5 reads MSR_IA32_THERM_STATUS before CPU4 has acknowledged the
interrupt. CPU5 will take the lock if CPU4 has released it. It then
re-reads MSR_IA32_THERM_STATUS. If there is not a new interrupt,
the HFI status bit is clear and CPU5 exits. If a new HFI interrupt
was generated it will find that the status bit is set and it will
continue to process the interrupt. In this case even if timestamp
is not changed, the ACK can be issued as this is a new interrupt.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Tested-by: Arshad, Adeel<adeel.arshad@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The clearing of the package thermal status is done by Read-Modify-Write
operation. This may result in clearing of some new status bits which are
being or about to be processed.
For example, while clearing of HFI status, after read of thermal status
register, a new thermal status bit is set by the hardware. But during
write back, the newly generated status bit will be set to 0 or cleared.
So, it is not safe to do read-modify-write.
Since thermal status Read-Write bits can be set to only 0 not 1, it is
safe to set all other bits to 1 which are not getting cleared.
Create a common interface for clearing package thermal status bits. Use
this interface to replace existing code to clear thermal package status
bits.
It is safe to call from different CPUs without protection as there is no
read-modify-write. Also wrmsrl results in just single instruction. For
example while CPU 0 and CPU 3 are clearing bit 1 and 3 respectively. If
CPU 3 wins the race, it will write 0x4000aa2, then CPU 1 will write
0x4000aa8. The bits which are not part of clear are set to 1. The default
mask for bits, which can be written here is 0x4000aaa.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
When there is a package thermal interrupt with PROCHOT log, it will be
processed and cleared. It is possible that there is an active HFI event
status, which is about to get processed or getting processed. While
clearing PROCHOT log bit, it will also clear HFI status bit. This means
that hardware is free to update HFI memory.
When clearing a package thermal interrupt, some processors will generate
a "general protection fault" when any of the read only bit is set to 1.
The driver maintains a mask of all read-write bits which can be set.
This mask doesn't include HFI status bit. This bit will also be cleared,
as it will be assumed read-only bit. So, add HFI status bit 26 to the
mask.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reviewed-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
For bus-based driver, device removal is implemented as:
1 device_remove()->
2 bus->remove()->
3 driver->remove()
Driver core needs no inform from callee(bus driver) about the
result of remove callback. In that case, commit fc7a6209d571
("bus: Make remove callback return void") forces bus_type::remove
be void-returned.
Now we have the situation that both 1 & 2 of calling chain are
void-returned, so it does not make much sense for 3(driver->remove)
to return non-void to its caller.
So the basic idea behind this change is making remove() callback of
any bus-based driver to be void-returned.
This change, for itself, is for device drivers based on acpi-bus.
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Lee Jones <lee@kernel.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Dawei Li <set_pte_at@outlook.com>
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for drivers/platform/surface/*
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This adds new BPMP ABI so that newer features can be enabled.
Furthermore, the BPMP driver is updated to use iosys-map helpers to
allow working with shared memory regions that are located in system
memory.
Apart from that, several minor cleanups are included.
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Merge tag 'tegra-for-6.2-firmware-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into soc/drivers
firmware: tegra: Changes for v6.2-rc1
This adds new BPMP ABI so that newer features can be enabled.
Furthermore, the BPMP driver is updated to use iosys-map helpers to
allow working with shared memory regions that are located in system
memory.
Apart from that, several minor cleanups are included.
* tag 'tegra-for-6.2-firmware-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
firmware: tegra: Remove surplus dev_err() when using platform_get_irq_byname()
firmware: tegra: Update BPMP ABI
firmware: tegra: bpmp: Do not support big-endian
firmware: tegra: bpmp: Use iosys-map helpers
firmware: tegra: bpmp: Prefer u32 over uint32_t
Link: https://lore.kernel.org/r/20221121171239.2041835-2-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Thermal device operations may be called after thermal zone device removal.
After thermal zone device removal, thermal zone device operations must
no longer be called. To prevent such calls from happening, ensure that
the thermal device is registered before executing any thermal device
operations.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Since no callers of thermal_zone_set_trips() are left, remove the function.
Document __thermal_zone_set_trips() instead. Explicitly state that the
thermal zone lock must be held when calling the function, and that the
pointer to the thermal zone must be valid.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Protect access to thermal operations against thermal zone removal by
acquiring the thermal zone device mutex. After acquiring the mutex, check
if the thermal zone device is registered and abort the operation if not.
With this change, we can call __thermal_zone_device_update() instead of
thermal_zone_device_update() from trip_point_temp_store() and from
emul_temp_store(). Similar, we can call __thermal_zone_set_trips() instead
of thermal_zone_set_trips() from trip_point_hyst_store().
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In preparation to protecting access to thermal operations against thermal
zone device removal, protect hwmon accesses to thermal zone operations
with the thermal zone mutex. After acquiring the mutex, ensure that the
thermal zone device is registered before proceeding.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In thermal_zone_device_set_mode(), the thermal zone mutex is released only
to be reacquired in the subsequent call to thermal_zone_device_update().
Introduce __thermal_zone_device_update(), which is similar to
thermal_zone_device_update() but has to be called with the thermal device
mutex held. Call the new function from thermal_zone_device_set_mode()
to avoid the extra thermal device mutex release/acquire sequence in that
function.
With the new function in place, re-implement thermal_zone_device_update()
as wrapper around __thermal_zone_device_update() to acquire and release
the thermal device mutex.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
All callers of __thermal_zone_get_temp() already validated the
thermal zone parameters. Move validation to thermal_zone_get_temp()
where it is actually needed. Also add kernel documentation for
__thermal_zone_get_temp(), listing the requirement that the
function must be called with validated parameters and with thermal
device mutex held.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Calls to thermal_zone_get_temp() are not protected against thermal zone
device removal. As result, it is possible that the thermal zone operations
callbacks are no longer valid when thermal_zone_get_temp() is called.
This may result in crashes such as
BUG: unable to handle page fault for address: ffffffffc04ef420
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 5d60e067 P4D 5d60e067 PUD 5d610067 PMD 110197067 PTE 0
Oops: 0000 [#1] PREEMPT SMP NOPTI
CPU: 1 PID: 3209 Comm: cat Tainted: G W 5.10.136-19389-g615abc6eb807 #1 02df41ac0b12f3a64f4b34245188d8875bb3bce1
Hardware name: Google Coral/Coral, BIOS Google_Coral.10068.92.0 11/27/2018
RIP: 0010:thermal_zone_get_temp+0x26/0x73
Code: 89 c3 eb d3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 53 48 85 ff 74 50 48 89 fb 48 81 ff 00 f0 ff ff 77 44 48 8b 83 98 03 00 00 <48> 83 78 10 00 74 36 49 89 f6 4c 8d bb d8 03 00 00 4c 89 ff e8 9f
RSP: 0018:ffffb3758138fd38 EFLAGS: 00010287
RAX: ffffffffc04ef410 RBX: ffff98f14d7fb000 RCX: 0000000000000000
RDX: ffff98f17cf90000 RSI: ffffb3758138fd64 RDI: ffff98f14d7fb000
RBP: ffffb3758138fd50 R08: 0000000000001000 R09: ffff98f17cf90000
R10: 0000000000000000 R11: ffffffff8dacad28 R12: 0000000000001000
R13: ffff98f1793a7d80 R14: ffff98f143231708 R15: ffff98f14d7fb018
FS: 00007ec166097800(0000) GS:ffff98f1bbd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffc04ef420 CR3: 000000010ee9a000 CR4: 00000000003506e0
Call Trace:
temp_show+0x31/0x68
dev_attr_show+0x1d/0x4f
sysfs_kf_seq_show+0x92/0x107
seq_read_iter+0xf5/0x3f2
vfs_read+0x205/0x379
__x64_sys_read+0x7c/0xe2
do_syscall_64+0x43/0x55
entry_SYSCALL_64_after_hwframe+0x61/0xc6
if a thermal device is removed while accesses to its device attributes
are ongoing.
The problem is exposed by code in iwl_op_mode_mvm_start(), which registers
a thermal zone device only to unregister it shortly afterwards if an
unrelated failure is encountered while accessing the hardware.
Check if the thermal zone device is registered after acquiring the
thermal zone device mutex to ensure this does not happen.
The code was tested by triggering the failure in iwl_op_mode_mvm_start()
on purpose. Without this patch, the kernel crashes reliably. The crash
is no longer observed after applying this and the preceding patches.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Thermal device attributes may still be opened after unregistering
the thermal zone and deleting the thermal device.
Currently there is no protection against accessing thermal device
operations after unregistering a thermal zone. To enable adding
such protection, protect the device delete operation with the
thermal zone device mutex. This requires splitting the call to
device_unregister() into its components, device_del() and put_device().
Only the first call can be executed under mutex protection, since
put_device() may result in releasing the thermal zone device memory.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Accesses to thermal zones, and with it the thermal zone device mutex,
are still possible after the thermal zone device has been unregistered.
For example, thermal_zone_get_temp() can be called from temp_show()
in thermal_sysfs.c if the sysfs attribute was opened before the thermal
device was unregistered.
Move the call to mutex_destroy from thermal_zone_device_unregister()
to thermal_release() to ensure that it is only destroyed after it is
guaranteed to be no longer accessed.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Add RaptorLake to the list of processor models supported by the Intel
TCC cooling driver.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
When MSR_IA32_TEMPERATURE_TARGET is locked, TCC Offset can not be
updated even if the PROGRAMMABE Bit is set.
Yield the driver on platforms with MSR_IA32_TEMPERATURE_TARGET locked.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
A Coverity static code scan raised a potential overflow_before_widen
warning when hfi_features::nr_table_pages is used as an argument to
memcpy in intel_hfi_process_event().
Even though the overflow can never happen (the maximum number of pages of
the HFI table is 0x10 and 0x10 << PAGE_SHIFT = 0x10000), using size_t as
the data type of hfi_features::nr_table_pages makes Coverity happy and
matches the data type of the argument 'size' of memcpy().
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Return an error pointer if ->get_max_state() fails. The current code
returns NULL which will cause an oops in the callers.
Fixes: c408b3d1d9bb ("thermal: Validate new state in cur_state_store()")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Now that the cooling device structure stores the max_state value, reuse
it and drop max_states from struct cooling_dev_stats.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In cur_state_store(), the new state of the cooling device is received
from user-space and is not validated by the thermal core but the same is
left for the individual drivers to take care of. Apart from duplicating
the code it leaves possibility for introducing bugs where a driver may
not do it right.
Lets make the thermal core check the new state itself and store the max
value in the cooling device structure.
Link: https://lore.kernel.org/all/Y0ltRJRjO7AkawvE@kili/
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The shared memory used for inter-processor communication between the CPU
and the BPMP can reside either in system memory or in I/O memory. Use
the iosys-map helpers to abstract these differences away.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Commit 68b99e94a4a2 ("thermal: intel_powerclamp: Use get_cpu() instead
of smp_processor_id() to avoid crash") fixed an issue related to using
smp_processor_id() in preemptible context by replacing it with a pair
of get_cpu()/put_cpu(), but what is needed there really is any online
CPU and not necessarily the one currently running the code. Arguably,
getting the one that's running the code in there is confusing.
For this reason, simply give the control CPU role to the first online
one which automatically will be CPU0 if it is online, so one check
can be dropped from the code for an added benefit.
Link: https://lore.kernel.org/linux-pm/20221011113646.GA12080@duo.ucw.cz/
Fixes: 68b99e94a4a2 ("thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Chen Yu <yu.c.chen@intel.com>
- Use platform data to get the sensor ID instead of parsing the device
in imx_sc thermal driver and remove the dedicated OF function from
the core code (Daniel Lezcano).
- Fix Kconfig dependency for the QCom tsens thermal driver (Jonathan
Cameron).
- Add missing const annotation to the RCar ops thermal driver (Lad
Prabhakar).
- Drop duplicate parameter check from
thermal_zone_device_register_with_trips() (Lad Prabhakar).
- Fix NULL pointer dereference in trip_point_temp_store() by making it
check if the ->set_trip_temp() operation is present (Lad Prabhakar).
- Fix the MSM8939 fourth sensor hardware ID in the QCom tsens thermal
driver (Vincent Knecht).
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Merge tag 'thermal-6.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more thermal control updates from Rafael Wysocki:
"These fix assorted issues in the thermal core and ARM thermal drivers.
Specifics:
- Use platform data to get the sensor ID instead of parsing the
device in imx_sc thermal driver and remove the dedicated OF
function from the core code (Daniel Lezcano).
- Fix Kconfig dependency for the QCom tsens thermal driver (Jonathan
Cameron).
- Add missing const annotation to the RCar ops thermal driver (Lad
Prabhakar).
- Drop duplicate parameter check from
thermal_zone_device_register_with_trips() (Lad Prabhakar).
- Fix NULL pointer dereference in trip_point_temp_store() by making
it check if the ->set_trip_temp() operation is present (Lad
Prabhakar).
- Fix the MSM8939 fourth sensor hardware ID in the QCom tsens thermal
driver (Vincent Knecht)"
* tag 'thermal-6.1-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal/drivers/qcom/tsens-v0_1: Fix MSM8939 fourth sensor hw_id
thermal/core: Add a check before calling set_trip_temp()
thermal/core: Drop valid pointer check for type
thermal/drivers/rcar_thermal: Constify static thermal_zone_device_ops
thermal/drivers/qcom: Drop false build dependency of all QCOM drivers on QCOM_TSENS
thermal/of: Remove the thermal_zone_of_get_sensor_id() function
thermal/drivers/imx_sc: Rely on the platform data to get the resource id
Here is the large set of char/misc and other small driver subsystem
changes for 6.1-rc1. Loads of different things in here:
- IIO driver updates, additions, and changes. Probably the largest
part of the diffstat
- habanalabs driver update with support for new hardware and features,
the second largest part of the diff.
- fpga subsystem driver updates and additions
- mhi subsystem updates
- Coresight driver updates
- gnss subsystem updates
- extcon driver updates
- icc subsystem updates
- fsi subsystem updates
- nvmem subsystem and driver updates
- misc driver updates
- speakup driver additions for new features
- lots of tiny driver updates and cleanups
All of these have been in the linux-next tree for a while with no
reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc and other driver updates from Greg KH:
"Here is the large set of char/misc and other small driver subsystem
changes for 6.1-rc1. Loads of different things in here:
- IIO driver updates, additions, and changes. Probably the largest
part of the diffstat
- habanalabs driver update with support for new hardware and
features, the second largest part of the diff.
- fpga subsystem driver updates and additions
- mhi subsystem updates
- Coresight driver updates
- gnss subsystem updates
- extcon driver updates
- icc subsystem updates
- fsi subsystem updates
- nvmem subsystem and driver updates
- misc driver updates
- speakup driver additions for new features
- lots of tiny driver updates and cleanups
All of these have been in the linux-next tree for a while with no
reported issues"
* tag 'char-misc-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (411 commits)
w1: Split memcpy() of struct cn_msg flexible array
spmi: pmic-arb: increase SPMI transaction timeout delay
spmi: pmic-arb: block access for invalid PMIC arbiter v5 SPMI writes
spmi: pmic-arb: correct duplicate APID to PPID mapping logic
spmi: pmic-arb: add support to dispatch interrupt based on IRQ status
spmi: pmic-arb: check apid against limits before calling irq handler
spmi: pmic-arb: do not ack and clear peripheral interrupts in cleanup_irq
spmi: pmic-arb: handle spurious interrupt
spmi: pmic-arb: add a print in cleanup_irq
drivers: spmi: Directly use ida_alloc()/free()
MAINTAINERS: add TI ECAP driver info
counter: ti-ecap-capture: capture driver support for ECAP
Documentation: ABI: sysfs-bus-counter: add frequency & num_overflows items
dt-bindings: counter: add ti,am62-ecap-capture.yaml
counter: Introduce the COUNTER_COMP_ARRAY component type
counter: Consolidate Counter extension sysfs attribute creation
counter: Introduce the Count capture component
counter: 104-quad-8: Add Signal polarity component
counter: Introduce the Signal polarity component
counter: interrupt-cnt: Implement watch_validate callback
...
Core
----
- Introduce and use a single page frag cache for allocating small skb
heads, clawing back the 10-20% performance regression in UDP flood
test from previous fixes.
- Run packets which already went thru HW coalescing thru SW GRO.
This significantly improves TCP segment coalescing and simplifies
deployments as different workloads benefit from HW or SW GRO.
- Shrink the size of the base zero-copy send structure.
- Move TCP init under a new slow / sleepable version of DO_ONCE().
BPF
---
- Add BPF-specific, any-context-safe memory allocator.
- Add helpers/kfuncs for PKCS#7 signature verification from BPF
programs.
- Define a new map type and related helpers for user space -> kernel
communication over a ring buffer (BPF_MAP_TYPE_USER_RINGBUF).
- Allow targeting BPF iterators to loop through resources of one
task/thread.
- Add ability to call selected destructive functions.
Expose crash_kexec() to allow BPF to trigger a kernel dump.
Use CAP_SYS_BOOT check on the loading process to judge permissions.
- Enable BPF to collect custom hierarchical cgroup stats efficiently
by integrating with the rstat framework.
- Support struct arguments for trampoline based programs.
Only structs with size <= 16B and x86 are supported.
- Invoke cgroup/connect{4,6} programs for unprivileged ICMP ping
sockets (instead of just TCP and UDP sockets).
- Add a helper for accessing CLOCK_TAI for time sensitive network
related programs.
- Support accessing network tunnel metadata's flags.
- Make TCP SYN ACK RTO tunable by BPF programs with TCP Fast Open.
- Add support for writing to Netfilter's nf_conn:mark.
Protocols
---------
- WiFi: more Extremely High Throughput (EHT) and Multi-Link
Operation (MLO) work (802.11be, WiFi 7).
- vsock: improve support for SO_RCVLOWAT.
- SMC: support SO_REUSEPORT.
- Netlink: define and document how to use netlink in a "modern" way.
Support reporting missing attributes via extended ACK.
- IPSec: support collect metadata mode for xfrm interfaces.
- TCPv6: send consistent autoflowlabel in SYN_RECV state
and RST packets.
- TCP: introduce optional per-netns connection hash table to allow
better isolation between namespaces (opt-in, at the cost of memory
and cache pressure).
- MPTCP: support TCP_FASTOPEN_CONNECT.
- Add NEXT-C-SID support in Segment Routing (SRv6) End behavior.
- Adjust IP_UNICAST_IF sockopt behavior for connected UDP sockets.
- Open vSwitch:
- Allow specifying ifindex of new interfaces.
- Allow conntrack and metering in non-initial user namespace.
- TLS: support the Korean ARIA-GCM crypto algorithm.
- Remove DECnet support.
Driver API
----------
- Allow selecting the conduit interface used by each port
in DSA switches, at runtime.
- Ethernet Power Sourcing Equipment and Power Device support.
- Add tc-taprio support for queueMaxSDU parameter, i.e. setting
per traffic class max frame size for time-based packet schedules.
- Support PHY rate matching - adapting between differing host-side
and link-side speeds.
- Introduce QUSGMII PHY mode and 1000BASE-KX interface mode.
- Validate OF (device tree) nodes for DSA shared ports; make
phylink-related properties mandatory on DSA and CPU ports.
Enforcing more uniformity should allow transitioning to phylink.
- Require that flash component name used during update matches one
of the components for which version is reported by info_get().
- Remove "weight" argument from driver-facing NAPI API as much
as possible. It's one of those magic knobs which seemed like
a good idea at the time but is too indirect to use in practice.
- Support offload of TLS connections with 256 bit keys.
New hardware / drivers
----------------------
- Ethernet:
- Microchip KSZ9896 6-port Gigabit Ethernet Switch
- Renesas Ethernet AVB (EtherAVB-IF) Gen4 SoCs
- Analog Devices ADIN1110 and ADIN2111 industrial single pair
Ethernet (10BASE-T1L) MAC+PHY.
- Rockchip RV1126 Gigabit Ethernet (a version of stmmac IP).
- Ethernet SFPs / modules:
- RollBall / Hilink / Turris 10G copper SFPs
- HALNy GPON module
- WiFi:
- CYW43439 SDIO chipset (brcmfmac)
- CYW89459 PCIe chipset (brcmfmac)
- BCM4378 on Apple platforms (brcmfmac)
Drivers
-------
- CAN:
- gs_usb: HW timestamp support
- Ethernet PHYs:
- lan8814: cable diagnostics
- Ethernet NICs:
- Intel (100G):
- implement control of FCS/CRC stripping
- port splitting via devlink
- L2TPv3 filtering offload
- nVidia/Mellanox:
- tunnel offload for sub-functions
- MACSec offload, w/ Extended packet number and replay
window offload
- significantly restructure, and optimize the AF_XDP support,
align the behavior with other vendors
- Huawei:
- configuring DSCP map for traffic class selection
- querying standard FEC statistics
- querying SerDes lane number via ethtool
- Marvell/Cavium:
- egress priority flow control
- MACSec offload
- AMD/SolarFlare:
- PTP over IPv6 and raw Ethernet
- small / embedded:
- ax88772: convert to phylink (to support SFP cages)
- altera: tse: convert to phylink
- ftgmac100: support fixed link
- enetc: standard Ethtool counters
- macb: ZynqMP SGMII dynamic configuration support
- tsnep: support multi-queue and use page pool
- lan743x: Rx IP & TCP checksum offload
- igc: add xdp frags support to ndo_xdp_xmit
- Ethernet high-speed switches:
- Marvell (prestera):
- support SPAN port features (traffic mirroring)
- nexthop object offloading
- Microchip (sparx5):
- multicast forwarding offload
- QoS queuing offload (tc-mqprio, tc-tbf, tc-ets)
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- support RGMII cmode
- NXP (felix):
- standardized ethtool counters
- Microchip (lan966x):
- QoS queuing offload (tc-mqprio, tc-tbf, tc-cbs, tc-ets)
- traffic policing and mirroring
- link aggregation / bonding offload
- QUSGMII PHY mode support
- Qualcomm 802.11ax WiFi (ath11k):
- cold boot calibration support on WCN6750
- support to connect to a non-transmit MBSSID AP profile
- enable remain-on-channel support on WCN6750
- Wake-on-WLAN support for WCN6750
- support to provide transmit power from firmware via nl80211
- support to get power save duration for each client
- spectral scan support for 160 MHz
- MediaTek WiFi (mt76):
- WiFi-to-Ethernet bridging offload for MT7986 chips
- RealTek WiFi (rtw89):
- P2P support
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
"Core:
- Introduce and use a single page frag cache for allocating small skb
heads, clawing back the 10-20% performance regression in UDP flood
test from previous fixes.
- Run packets which already went thru HW coalescing thru SW GRO. This
significantly improves TCP segment coalescing and simplifies
deployments as different workloads benefit from HW or SW GRO.
- Shrink the size of the base zero-copy send structure.
- Move TCP init under a new slow / sleepable version of DO_ONCE().
BPF:
- Add BPF-specific, any-context-safe memory allocator.
- Add helpers/kfuncs for PKCS#7 signature verification from BPF
programs.
- Define a new map type and related helpers for user space -> kernel
communication over a ring buffer (BPF_MAP_TYPE_USER_RINGBUF).
- Allow targeting BPF iterators to loop through resources of one
task/thread.
- Add ability to call selected destructive functions. Expose
crash_kexec() to allow BPF to trigger a kernel dump. Use
CAP_SYS_BOOT check on the loading process to judge permissions.
- Enable BPF to collect custom hierarchical cgroup stats efficiently
by integrating with the rstat framework.
- Support struct arguments for trampoline based programs. Only
structs with size <= 16B and x86 are supported.
- Invoke cgroup/connect{4,6} programs for unprivileged ICMP ping
sockets (instead of just TCP and UDP sockets).
- Add a helper for accessing CLOCK_TAI for time sensitive network
related programs.
- Support accessing network tunnel metadata's flags.
- Make TCP SYN ACK RTO tunable by BPF programs with TCP Fast Open.
- Add support for writing to Netfilter's nf_conn:mark.
Protocols:
- WiFi: more Extremely High Throughput (EHT) and Multi-Link Operation
(MLO) work (802.11be, WiFi 7).
- vsock: improve support for SO_RCVLOWAT.
- SMC: support SO_REUSEPORT.
- Netlink: define and document how to use netlink in a "modern" way.
Support reporting missing attributes via extended ACK.
- IPSec: support collect metadata mode for xfrm interfaces.
- TCPv6: send consistent autoflowlabel in SYN_RECV state and RST
packets.
- TCP: introduce optional per-netns connection hash table to allow
better isolation between namespaces (opt-in, at the cost of memory
and cache pressure).
- MPTCP: support TCP_FASTOPEN_CONNECT.
- Add NEXT-C-SID support in Segment Routing (SRv6) End behavior.
- Adjust IP_UNICAST_IF sockopt behavior for connected UDP sockets.
- Open vSwitch:
- Allow specifying ifindex of new interfaces.
- Allow conntrack and metering in non-initial user namespace.
- TLS: support the Korean ARIA-GCM crypto algorithm.
- Remove DECnet support.
Driver API:
- Allow selecting the conduit interface used by each port in DSA
switches, at runtime.
- Ethernet Power Sourcing Equipment and Power Device support.
- Add tc-taprio support for queueMaxSDU parameter, i.e. setting per
traffic class max frame size for time-based packet schedules.
- Support PHY rate matching - adapting between differing host-side
and link-side speeds.
- Introduce QUSGMII PHY mode and 1000BASE-KX interface mode.
- Validate OF (device tree) nodes for DSA shared ports; make
phylink-related properties mandatory on DSA and CPU ports.
Enforcing more uniformity should allow transitioning to phylink.
- Require that flash component name used during update matches one of
the components for which version is reported by info_get().
- Remove "weight" argument from driver-facing NAPI API as much as
possible. It's one of those magic knobs which seemed like a good
idea at the time but is too indirect to use in practice.
- Support offload of TLS connections with 256 bit keys.
New hardware / drivers:
- Ethernet:
- Microchip KSZ9896 6-port Gigabit Ethernet Switch
- Renesas Ethernet AVB (EtherAVB-IF) Gen4 SoCs
- Analog Devices ADIN1110 and ADIN2111 industrial single pair
Ethernet (10BASE-T1L) MAC+PHY.
- Rockchip RV1126 Gigabit Ethernet (a version of stmmac IP).
- Ethernet SFPs / modules:
- RollBall / Hilink / Turris 10G copper SFPs
- HALNy GPON module
- WiFi:
- CYW43439 SDIO chipset (brcmfmac)
- CYW89459 PCIe chipset (brcmfmac)
- BCM4378 on Apple platforms (brcmfmac)
Drivers:
- CAN:
- gs_usb: HW timestamp support
- Ethernet PHYs:
- lan8814: cable diagnostics
- Ethernet NICs:
- Intel (100G):
- implement control of FCS/CRC stripping
- port splitting via devlink
- L2TPv3 filtering offload
- nVidia/Mellanox:
- tunnel offload for sub-functions
- MACSec offload, w/ Extended packet number and replay window
offload
- significantly restructure, and optimize the AF_XDP support,
align the behavior with other vendors
- Huawei:
- configuring DSCP map for traffic class selection
- querying standard FEC statistics
- querying SerDes lane number via ethtool
- Marvell/Cavium:
- egress priority flow control
- MACSec offload
- AMD/SolarFlare:
- PTP over IPv6 and raw Ethernet
- small / embedded:
- ax88772: convert to phylink (to support SFP cages)
- altera: tse: convert to phylink
- ftgmac100: support fixed link
- enetc: standard Ethtool counters
- macb: ZynqMP SGMII dynamic configuration support
- tsnep: support multi-queue and use page pool
- lan743x: Rx IP & TCP checksum offload
- igc: add xdp frags support to ndo_xdp_xmit
- Ethernet high-speed switches:
- Marvell (prestera):
- support SPAN port features (traffic mirroring)
- nexthop object offloading
- Microchip (sparx5):
- multicast forwarding offload
- QoS queuing offload (tc-mqprio, tc-tbf, tc-ets)
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- support RGMII cmode
- NXP (felix):
- standardized ethtool counters
- Microchip (lan966x):
- QoS queuing offload (tc-mqprio, tc-tbf, tc-cbs, tc-ets)
- traffic policing and mirroring
- link aggregation / bonding offload
- QUSGMII PHY mode support
- Qualcomm 802.11ax WiFi (ath11k):
- cold boot calibration support on WCN6750
- support to connect to a non-transmit MBSSID AP profile
- enable remain-on-channel support on WCN6750
- Wake-on-WLAN support for WCN6750
- support to provide transmit power from firmware via nl80211
- support to get power save duration for each client
- spectral scan support for 160 MHz
- MediaTek WiFi (mt76):
- WiFi-to-Ethernet bridging offload for MT7986 chips
- RealTek WiFi (rtw89):
- P2P support"
* tag 'net-next-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1864 commits)
eth: pse: add missing static inlines
once: rename _SLOW to _SLEEPABLE
net: pse-pd: add regulator based PSE driver
dt-bindings: net: pse-dt: add bindings for regulator based PoDL PSE controller
ethtool: add interface to interact with Ethernet Power Equipment
net: mdiobus: search for PSE nodes by parsing PHY nodes.
net: mdiobus: fwnode_mdiobus_register_phy() rework error handling
net: add framework to support Ethernet PSE and PDs devices
dt-bindings: net: phy: add PoDL PSE property
net: marvell: prestera: Propagate nh state from hw to kernel
net: marvell: prestera: Add neighbour cache accounting
net: marvell: prestera: add stub handler neighbour events
net: marvell: prestera: Add heplers to interact with fib_notifier_info
net: marvell: prestera: Add length macros for prestera_ip_addr
net: marvell: prestera: add delayed wq and flush wq on deinit
net: marvell: prestera: Add strict cleanup of fib arbiter
net: marvell: prestera: Add cleanup of allocated fib_nodes
net: marvell: prestera: Add router nexthops ABI
eth: octeon: fix build after netif_napi_add() changes
net/mlx5: E-Switch, Return EBUSY if can't get mode lock
...
Drop the valid pointer check for type in
thermal_zone_device_register_with_trips() as we already have it confirmed
for != NULL from the previous if block.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220909181322.10933-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
The only usage of rcar_thermal_zone_of_ops is to pass its address to
devm_thermal_of_zone_register(), which takes a pointer to const struct
thermal_zone_device_ops. Make it const to allow the compiler to put
it in read-only memory.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20220909182838.11154-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
The SPMI QCOM drivers have no dependency in Kconfig, but the Makefile
will not be included without QCOM_TSENS. This unnecessarily reduces
build coverage.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Acked-by: Amit Kucheria <amitk@kernel.org>
Reviewed-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
Link: https://lore.kernel.org/r/20220821160032.2206349-1-jic23@kernel.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Currently the imx_sc driver is reimplementing part of the thermal zone
parsing from the thermal OF tree code to get the sensor id associated
with a thermal zone sensor.
The driver platform specific code should know what sensor is present
and not rely on the thermal zone description to do a discovery. Well
that is arguable but all the other drivers have a per platform data
telling what sensor id to use.
The imx_sc thermal driver is the only one using a different
approach. Not invalid but forcing to keep a specific function
'thermal_zone_of_get_sensor_id()' to get the sensor id for a specific
thermal zone as the self-explanatory function tells and having device
tree code inside the driver.
The thermal OF code had a rework and remains now self-encapsulated
with a register/unregister functions and their 'devm' variants, except
for the function mentioned above.
After investigating, it appears the imx_sc sensor is defined in
arch/arm64/boot/dts/freescale/imx8qxp.dtsi:
which defines the cpu-thermal zone with the id: IMX_SC_R_SYSTEM
This dtsi is included by:
- imx8qxp-ai_ml.dts
- imx8qxp-colibri.dtsi
- imx8qxp-mek.dts
The two first ones do not define more thermal zones
The third one adds the pmic-thermal0 zone with id: IMX_SC_R_PMIC_0
The thermal OF code returns -ENODEV if the thermal zone registration
with a specific id fails because the description is not available in
the DT for such a sensor id. In this case we continue with the other
ids without bailing out with an error.
So we can build for the 'fsl,imx-sc-thermal' a compatible data, an
array of sensor ids containing IMX_SC_R_SYSTEM and IMX_SC_R_PMIC_0.
The latter won't be found but that will not result in an error but a
normal case where we continue the initialization with other ids.
Just to clarify, it is what the thermal framework does and what the
other drivers are expecting: when a registration fails with -ENODEV
this is not an error but a case where the description is not found in
the device tree, that be can the entire thermal zones description or a
specific thermal zone with an unknown id.
There is one small functional change but without impact. When there is
no 'thermal-zones' description the probe function was returning
'-ENODEV', now it returns zero. When a thermal zone fails to register
with an error different from '-ENODEV', the error is detected and
returned.
Change the code accordingly and remove the OF code from the driver.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20220818082316.2717095-1-daniel.lezcano@linaro.org
Merge thermal control driver changes for 6.1-rc1:
- Use module_pci_driver() macro in the int340x processor_thermal
driver (Shang XiaoJing).
- Use get_cpu() instead of smp_processor_id() in the intel_powerclamp
thermal driver to prevent it from crashing and remove unused
accounting for IRQ wakes from it (Srinivas Pandruvada).
- Consolidate priv->data_vault checks in int340x_thermal (Rafael
Wysocki).
- Check the policy first in cpufreq_cooling_register() (Xuewen Yan).
- Drop redundant error message from da9062-thermal (zhaoxiao).
- Drop of_match_ptr() from thermal_mmio (Jean Delvare).
* thermal-intel:
thermal: int340x: processor_thermal: Use module_pci_driver() macro
thermal: intel_powerclamp: Remove accounting for IRQ wakes
thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crash
thermal: int340x_thermal: Consolidate priv->data_vault checks
* thermal-drivers:
thermal: cpufreq_cooling: Check the policy first in cpufreq_cooling_register()
thermal: da9062-thermal: Drop redundant error message
thermal/drivers/thermal_mmio: Drop of_match_ptr()
Merge core thermal control changes for 6.1-rc1:
- Increase maximum number of trip points in the thermal core (Sumeet
Pawnikar).
- Replace strlcpy() with unused retval with strscpy() in the core
thermal control code (Wolfram Sang).
- Do not lock thermal zone mutex in the user space governor (Rafael
Wysocki)
- Rework the device tree initialization, convert the drivers to the
new API and remove the old OF code (Daniel Lezcano)
- Fix return value to -ENODEV when searching for a specific thermal
zone which does not exist (Daniel Lezcano)
- Fix the return value inspection in of_thermal_zone_find() (Dan
Carpenter)
- Fix kernel panic when KASAN is enabled as it detects use after
free when unregistering a thermal zone (Daniel Lezcano)
- Move the set_trip ops inside the therma sysfs code (Daniel Lezcano)
- Remove unnecessary error message as it is already showed in the
underlying function (Jiapeng Chong)
- Rework the monitoring path and move the locks upper in the call
stack to fix some potentials race windows (Daniel Lezcano)
- Fix lockdep_assert() warning introduced by the lock rework (Daniel
Lezcano)
- Revert the Mellanox 'hotter thermal zone' feature because it is
already handled in the thermal framework core code (Daniel Lezcano)
* thermal-core: (47 commits)
thermal: core: Increase maximum number of trip points
thermal: move from strlcpy() with unused retval to strscpy()
thermal: gov_user_space: Do not lock thermal zone mutex
Revert "mlxsw: core: Add the hottest thermal zone detection"
thermal/core: Fix lockdep_assert() warning
thermal/core: Move the mutex inside the thermal_zone_device_update() function
thermal/core: Move the thermal zone lock out of the governors
thermal/governors: Group the thermal zone lock inside the throttle function
thermal/core: Rework the monitoring a bit
thermal/core: Rearm the monitoring only one time
thermal/drivers/qcom/spmi-adc-tm5: Remove unnecessary print function dev_err()
thermal/of: Remove old OF code
thermal/core: Move set_trip_temp ops to the sysfs code
thermal/drivers/samsung: Switch to new of thermal API
regulator/drivers/max8976: Switch to new of thermal API
Input: sun4i-ts - switch to new of thermal API
iio/drivers/sun4i_gpadc: Switch to new of thermal API
hwmon/drivers/core: Switch to new of thermal API
hwmon: pm_bus: core: Switch to new of thermal API
ata/drivers/ahci_imx: Switch to new of thermal API
...
On one of the Chrome system, if we define more than 12 trip points,
probe for thermal sensor fails with
"int3403 thermal: probe of INTC1046:03 failed with error -22"
and throws an error as
"thermal_sys: Error: Incorrect number of thermal trips".
The thermal_zone_device_register() interface needs maximum
number of trip points supported in a zone as an argument.
This number can't exceed THERMAL_MAX_TRIPS, which is currently
set to 12. To address this issue, THERMAL_MAX_TRIPS value
has to be increased.
This interface also has an argument to specify a mask of trips
which are writable. This mask is defined as an int.
This mask sets the ceiling for increasing maximum number of
supported trips. With the current implementation, maximum number
of trips can be supported is 31.
Also, THERMAL_MAX_TRIPS macro is used in one place only.
So, remove THERMAL_MAX_TRIPS macro and compare num_trips
directly with using a macro BITS_PER_TYPE(int)-1.
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Since PCI provides helper macro module_pci_driver(), the
module_init/exit code can be replaced with it.
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There is a static variable "idle_wakeup_counter", which accounts for
number of wake ups because of IRQs and take actions to compensate idle
injection. This is now read and reset to 0, but never incremented.
So all the usage of this counter for idle injection has no use.
Also another static variable "reduce_irq", which depends on
"idle_wakeup_counter", so remove usage of "reduce_irq" also.
Commit feb6cd6a0f9f ("thermal/intel_powerclamp: stop sched tick in
forced idle") replaced the local use of "mwait_idle_with_hints" with
play_idle(). This removed possibility of updating "idle_wakeup_counter"
without change in play_idle(). This change was made in Linux 4.10.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
When CPU 0 is offline and intel_powerclamp is used to inject
idle, it generates kernel BUG:
BUG: using smp_processor_id() in preemptible [00000000] code: bash/15687
caller is debug_smp_processor_id+0x17/0x20
CPU: 4 PID: 15687 Comm: bash Not tainted 5.19.0-rc7+ #57
Call Trace:
<TASK>
dump_stack_lvl+0x49/0x63
dump_stack+0x10/0x16
check_preemption_disabled+0xdd/0xe0
debug_smp_processor_id+0x17/0x20
powerclamp_set_cur_state+0x7f/0xf9 [intel_powerclamp]
...
...
Here CPU 0 is the control CPU by default and changed to the current CPU,
if CPU 0 offlined. This check has to be performed under cpus_read_lock(),
hence the above warning.
Use get_cpu() instead of smp_processor_id() to avoid this BUG.
Suggested-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This includes Nuno Sa's work to move the IIO core over to generic firmware
properties rather than having DT specific code paths. Combined with Andy
Shevchenko's long term work on drivers, this leaves IIO in a good state for
handling other firmware types.
New device support
- liteon,ltrf216a
* New driver and dt bindings to support this Light sensor.
- maxim,max11205
* New driver for this 16bit single channel ADC.
- memsensing,msa311
* New driver for this accelerometer. Includes a string helper for read/write.
- richtek,rtq6056
* New driver and dt binding to support this current monitor used to measure
power usage.
- yamaha,yas530
* Support the YAS537 variant (series includes several fixes for other parts
and new driver features).
Staging graduation
- adi,ad7746 CDC. Cleanup conducted against set of roadtest tests using
the posted RFC of that framework.
Features
- core
* Large rework to make all the core IIO code use generic firmware properties.
Includes switching some drivers over as well using newly provided
generic interfaces and allowing removal of DT specific ones.
* Support for gesture event types for single and double tap. Used in
bosch,bma400.
- atmel,at91-sama5d2
* Add support for temperature sensor which uses two muxed inputs to estimate
the temperature.
* Handle trackx bits of EMR register to improve temp sampling accuracy.
* Runtime PM support.
- liteon,ltrf216a
* Add a _raw channel output to allow working around an issue with
differing conversions equations that breaks some user space controls.
- mexelis,mlx90632
* Support regulator control.
- ti,tsc2046
* External reference voltage support.
Clean up and minor fixes
- Tree-wide
* devm_clk_get_enabled() replacements of opencoded equivalent.
* Remaining IIO_DMA_MINALIGN conversions (the staging/iio drivers).
* Various minor warning and similar cleanup such as missing static
markings.
* strlcpy() to strscpy() for cases where return value not checked.
* provide units.h entries for more HZ units and use them in drivers.
- dt-bindings cleanup
* Drop maintainers listss where the email address is bouncing.
* Switch spi devices over to using spi-peripheral.yaml
* Add some missing unevaluatedProperties / additionalProperties: false
entries.
- ABI docs
* Add some missing channel type specific sampling frequency entries.
* Add parameter names for callback parameters.
- MAINTAINERS
* Fix wrong ADI forum links.
- core
* lockdep class per device, to avoid an issue with nest when one IIO
device is the consumer of another.
* White space tweaks.
- asc,dlhl60d
* Use get_unaligned_be24 to avoid some unusual data manipulation and masking.
- atmel,at91-sama5d2
* Fix wrong max value.
* Improve error handling when measuring pressure and touch.
* Add locks to remove races on updating oversampling / sampling freq.
* Add missing calls in suspend and resume path to ensure state is correctly
brought up if buffered capture was in use when suspend happened.
* Error out of write_raw() callback if buffered capture enabled to avoid
unpredictable behavior.
* Handle different versions having different oversampling ratio support and
drop excess error checking.
* Cleanup magic value defines where the name is just the value and hence
hurts readability.
* Use read_avail() callback to provide info on possible oversampling ratios.
* Correctly handle variable bit depth when doing oversampling on different
supported parts. Also handle higher oversampling ratios.
- fsl,imx8qxp
* Don't ignore errors from regulator_get_voltage() so as to avoid some
very surprising scaling.
- invensense,icp10100
* Switch from UNIVERSAL to DEFINE_RUNTIME_DEV_PM_OPS. UNIVERSAL rarely made
sense and is now deprecated. In this driver we just avoid double disabling
in some paths.
- maxim,max1363
* Drop consumer channel map provision by platform data. There have been
better ways of doing this for years and there are no in tree users.
- microchip,mcp3911
* Update status to maintained.
- qcom,spmi-adc5
* Support measurement of LDO output voltage.
- qcom,spmi-adc
* Add missing channel available on SM6125 SoC.
- st,stmpe
* Drop requirement on node name in binding now that driver correctly
doesn't enforce it.
- stx104
* Move to more appropriate addac directory
- ti,am335x
* Document ti,am654-adc compatible already in use in tree.
- ti,hmc5843
* Move dev_pm_ops out of header and use new pm macros to handle export.
- yamaha,yas530
* Minor cleanups.
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Merge tag 'iio-for-6.1a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:
1st set of IIO new device support, features and cleanup for 6.1
This includes Nuno Sa's work to move the IIO core over to generic firmware
properties rather than having DT specific code paths. Combined with Andy
Shevchenko's long term work on drivers, this leaves IIO in a good state for
handling other firmware types.
New device support
- liteon,ltrf216a
* New driver and dt bindings to support this Light sensor.
- maxim,max11205
* New driver for this 16bit single channel ADC.
- memsensing,msa311
* New driver for this accelerometer. Includes a string helper for read/write.
- richtek,rtq6056
* New driver and dt binding to support this current monitor used to measure
power usage.
- yamaha,yas530
* Support the YAS537 variant (series includes several fixes for other parts
and new driver features).
Staging graduation
- adi,ad7746 CDC. Cleanup conducted against set of roadtest tests using
the posted RFC of that framework.
Features
- core
* Large rework to make all the core IIO code use generic firmware properties.
Includes switching some drivers over as well using newly provided
generic interfaces and allowing removal of DT specific ones.
* Support for gesture event types for single and double tap. Used in
bosch,bma400.
- atmel,at91-sama5d2
* Add support for temperature sensor which uses two muxed inputs to estimate
the temperature.
* Handle trackx bits of EMR register to improve temp sampling accuracy.
* Runtime PM support.
- liteon,ltrf216a
* Add a _raw channel output to allow working around an issue with
differing conversions equations that breaks some user space controls.
- mexelis,mlx90632
* Support regulator control.
- ti,tsc2046
* External reference voltage support.
Clean up and minor fixes
- Tree-wide
* devm_clk_get_enabled() replacements of opencoded equivalent.
* Remaining IIO_DMA_MINALIGN conversions (the staging/iio drivers).
* Various minor warning and similar cleanup such as missing static
markings.
* strlcpy() to strscpy() for cases where return value not checked.
* provide units.h entries for more HZ units and use them in drivers.
- dt-bindings cleanup
* Drop maintainers listss where the email address is bouncing.
* Switch spi devices over to using spi-peripheral.yaml
* Add some missing unevaluatedProperties / additionalProperties: false
entries.
- ABI docs
* Add some missing channel type specific sampling frequency entries.
* Add parameter names for callback parameters.
- MAINTAINERS
* Fix wrong ADI forum links.
- core
* lockdep class per device, to avoid an issue with nest when one IIO
device is the consumer of another.
* White space tweaks.
- asc,dlhl60d
* Use get_unaligned_be24 to avoid some unusual data manipulation and masking.
- atmel,at91-sama5d2
* Fix wrong max value.
* Improve error handling when measuring pressure and touch.
* Add locks to remove races on updating oversampling / sampling freq.
* Add missing calls in suspend and resume path to ensure state is correctly
brought up if buffered capture was in use when suspend happened.
* Error out of write_raw() callback if buffered capture enabled to avoid
unpredictable behavior.
* Handle different versions having different oversampling ratio support and
drop excess error checking.
* Cleanup magic value defines where the name is just the value and hence
hurts readability.
* Use read_avail() callback to provide info on possible oversampling ratios.
* Correctly handle variable bit depth when doing oversampling on different
supported parts. Also handle higher oversampling ratios.
- fsl,imx8qxp
* Don't ignore errors from regulator_get_voltage() so as to avoid some
very surprising scaling.
- invensense,icp10100
* Switch from UNIVERSAL to DEFINE_RUNTIME_DEV_PM_OPS. UNIVERSAL rarely made
sense and is now deprecated. In this driver we just avoid double disabling
in some paths.
- maxim,max1363
* Drop consumer channel map provision by platform data. There have been
better ways of doing this for years and there are no in tree users.
- microchip,mcp3911
* Update status to maintained.
- qcom,spmi-adc5
* Support measurement of LDO output voltage.
- qcom,spmi-adc
* Add missing channel available on SM6125 SoC.
- st,stmpe
* Drop requirement on node name in binding now that driver correctly
doesn't enforce it.
- stx104
* Move to more appropriate addac directory
- ti,am335x
* Document ti,am654-adc compatible already in use in tree.
- ti,hmc5843
* Move dev_pm_ops out of header and use new pm macros to handle export.
- yamaha,yas530
* Minor cleanups.
* tag 'iio-for-6.1a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (142 commits)
iio: pressure: icp10100: Switch from UNIVERSAL to DEFINE_RUNTIME_DEV_PM_OPS().
iio: adc: max1363: Drop provision to provide an IIO channel map via platform data
iio: accel: bma400: Add support for single and double tap events
iio: Add new event type gesture and use direction for single and double tap
iio: Use per-device lockdep class for mlock
iio: adc: add max11205 adc driver
dt-bindings: iio: adc: Add max11205 documentation file
iio: magnetometer: yamaha-yas530: Use dev_err_probe()
iio: magnetometer: yamaha-yas530: Make strings const in chip info
iio: magnetometer: yamaha-yas530: Use pointers as driver data
iio: adc: tsc2046: silent spi_device_id warning
iio: adc: tsc2046: add vref support
dt-bindings: iio: adc: ti,tsc2046: add vref-supply property
iio: light: ltrf216a: Add raw attribute
dt-bindings: iio: Add missing (unevaluated|additional)Properties on child nodes
MAINTAINERS: fix Analog Devices forum links
iio/accel: fix repeated words in comments
dt-bindings: iio: accel: add dt-binding schema for msa311 accel driver
iio: add MEMSensing MSA311 3-axis accelerometer driver
dt-bindings: vendor-prefixes: add MEMSensing Microsystems Co., Ltd.
...
It is sufficient to check priv->data_vault once in the error code path
of int3400_thermal_probe(), so do that.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Since the policy needs to be accessed first when obtaining cpu devices,
first check whether the policy is legal before this.
Fixes: 5130802ddbb1 ("thermal: cpu_cooling: Switch to QoS requests for freq limits")
Signed-off-by: Xuewen Yan <xuewen.yan@unisoc.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Drop duplicate words from two kerneldoc comments in the thermal
subsystem.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
[ rjw: Subject edits and changelog rewrite ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linus Torvalds
Rafael J. Wysocki
Ricardo Neri
Yang Yingliang
Srinivas Pandruvada
Dawei Li
Arnd Bergmann
Guenter Roeck
Zhang Rui
Dan Carpenter
Viresh Kumar
Thierry Reding
Vincent Knecht
Lad Prabhakar
Jonathan Cameron
Daniel Lezcano
Sumeet Pawnikar
Shang XiaoJing
Rafał Miłecki
Greg Kroah-Hartman
Xuewen Yan
Jilin Yuan
Jakub Kicinski