Merge tag 'acpi-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These update APEI (new EINJv2 error injection, assorted fixes), fi

Merge tag 'acpi-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These update APEI (new EINJv2 error injection, assorted fixes), fix
the ACPI processor driver, update the legacy ACPI /proc interface
(multiple assorted fixes of minor issues) and several assorted ACPI
drivers (minor fixes and cleanups):

- Printing the address in acpi_ex_trace_point() is either incorrect
during early kernel boot or not really useful later when pathnames
resolve properly, so stop doing it (Mario Limonciello)

- Address several minor issues in the legacy ACPI proc interface
(Andy Shevchenko)

- Fix acpi_object union initialization in the ACPI processor driver
to avoid using memory that contains leftover data (Sebastian Ott)

- Make the ACPI processor perflib driver take the initial _PPC limit
into account as appropriate (Jiayi Li)

- Fix message formatting in the ACPI processor throttling driver and
in the ACPI PCI link driver (Colin Ian King)

- Clean up general ACPI PM domain handling (Rafael Wysocki)

- Fix iomem-related sparse warnings in the APEI EINJ driver (Zaid
Alali, Tony Luck)

- Add EINJv2 error injection support to the APEI EINJ driver (Zaid
Alali)

- Fix memory corruption in error_type_set() in the APEI EINJ driver
(Dan Carpenter)

- Fix less than zero comparison on a size_t variable in the APEI EINJ
driver (Colin Ian King)

- Fix check and iounmap of an uninitialized pointer in the APEI EINJ
driver (Colin Ian King)

- Add TAINT_MACHINE_CHECK to the GHES panic path in APEI to improve
diagnostics and post-mortem analysis (Breno Leitao)

- Update APEI reviewer records and other ACPI-related information in
MAINTAINERS as well as the contact information in the ACPI ABI
documentation (Rafael Wysocki)

- Fix the handling of synchronous uncorrected memory errors in APEI
(Shuai Xue)

- Remove an AudioDSP-related ID from the ACPI LPSS driver (Andy
Shevchenko)

- Replace sprintf()/scnprintf() with sysfs_emit() in the ACPI fan
driver and update a debug message in fan_get_state_acpi4() (Eslam
Khafagy, Abdelrahman Fekry, Sumeet Pawnikar)

- Add Intel Wildcat Lake support to the ACPI DPTF driver (Srinivas
Pandruvada)

- Add more debug information regarding failing firmware updates to
the ACPI pfr_update driver (Chen Yu)

- Reduce the verbosity of the ACPI PRM (platform runtime mechanism)
driver to avoid user confusion (Zhu Qiyu)

- Replace sprintf() with sysfs_emit() in the ACPI TAD (time and alarm
device) driver (Sukrut Heroorkar)

- Enable CONFIG_ACPI_DEBUG by default to make it easier to get ACPI
debug messages from OEM platforms (Mario Limonciello)

- Fix parent device references in ASL examples in the ACPI
documentation and fix spelling and style in the gpio-properties
documentation in firmware-guide (Andy Shevchenko)

- Fix typos in ACPI documentation and comments (Bjorn Helgaas)"

* tag 'acpi-6.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (39 commits)
ACPI: Fix typos
ACPI/PCI: Remove space before newline
ACPI: processor: throttling: Remove space before newline
ACPI: processor: perflib: Fix initial _PPC limit application
ACPI/PNP: Use my kernel.org address in MAINTAINERS and ABI docs
ACPI: TAD: Replace sprintf() with sysfs_emit()
ACPI: APEI: handle synchronous exceptions in task work
ACPI: APEI: send SIGBUS to current task if synchronous memory error not recovered
ACPI: APEI: MAINTAINERS: Update reviewers for APEI
Documentation: ACPI: Fix parent device references
ACPI: fan: Update debug message in fan_get_state_acpi4()
ACPI: PRM: Reduce unnecessary printing to avoid user confusion
ACPI: fan: Replace sprintf() with sysfs_emit()
ACPI: APEI: EINJ: Fix trigger actions
ACPI: processor: fix acpi_object initialization
ACPI: APEI: GHES: add TAINT_MACHINE_CHECK on GHES panic path
ACPI: LPSS: Remove AudioDSP related ID
Documentation: firmware-guide: gpio-properties: Spelling and style fixes
ACPI: fan: Replace sprintf()/scnprintf() with sysfs_emit() in show() functions
ACPI: PM: Set .detach in acpi_general_pm_domain definition
...

show more ...

Merge branch 'acpi-apei'

Merge ACPI APEI updates for 6.17-rc1:

- Fix iomem-related sparse warnings in the APEI EINJ driver (Zaid
Alali, Tony Luck)

- Add EINJv2 error injection support to the

Merge branch 'acpi-apei'

Merge ACPI APEI updates for 6.17-rc1:

- Fix iomem-related sparse warnings in the APEI EINJ driver (Zaid
Alali, Tony Luck)

- Add EINJv2 error injection support to the APEI EINJ driver (Zaid
Alali)

- Fix memory corruption in error_type_set() in the APEI EINJ driver (Dan
Carpenter)

- Fix less than zero comparison on a size_t variable in the APEI EINJ
driver (Colin Ian King)

- Fix check and iounmap of an uninitialized pointer in the APEI EINJ
driver (Colin Ian King)

- Add TAINT_MACHINE_CHECK to the GHES panic path in APEI to improve
diagnostics and post-mortem analysis (Breno Leitao)

- Update APEI reviewer records in MAINTAINERS (Rafael Wysocki)

- Fix the handling of synchronous uncorrected memory errors in APEI
(Shuai Xue)

* acpi-apei:
ACPI: APEI: handle synchronous exceptions in task work
ACPI: APEI: send SIGBUS to current task if synchronous memory error not recovered
ACPI: APEI: MAINTAINERS: Update reviewers for APEI
ACPI: APEI: EINJ: Fix trigger actions
ACPI: APEI: GHES: add TAINT_MACHINE_CHECK on GHES panic path
ACPI: APEI: EINJ: Fix check and iounmap of uninitialized pointer p
ACPI: APEI: EINJ: Fix less than zero comparison on a size_t variable
ACPI: APEI: EINJ: prevent memory corruption in error_type_set()
ACPI: APEI: EINJ: Update the documentation for EINJv2 support
ACPI: APEI: EINJ: Enable EINJv2 error injections
ACPI: APEI: EINJ: Create debugfs files to enter device id and syndrome
ACPI: APEI: EINJ: Discover EINJv2 parameters
ACPI: APEI: EINJ: Add einjv2 extension struct
ACPI: APEI: EINJ: Enable the discovery of EINJv2 capabilities
ACPI: APEI: EINJ: Fix kernel test sparse warnings

show more ...

ACPI: APEI: handle synchronous exceptions in task work

The memory uncorrected error could be signaled by asynchronous interrupt
(specifically, SPI in arm64 platform), e.g. when an error is detected

ACPI: APEI: handle synchronous exceptions in task work

The memory uncorrected error could be signaled by asynchronous interrupt
(specifically, SPI in arm64 platform), e.g. when an error is detected by
a background scrubber, or signaled by synchronous exception
(specifically, data abort exception in arm64 platform), e.g. when a CPU
tries to access a poisoned cache line. Currently, both synchronous and
asynchronous errors use memory_failure_queue() to schedule
memory_failure() to exectute in a kworker context.

As a result, when a user-space process is accessing a poisoned data, a
data abort is taken and the memory_failure() is executed in the kworker
context, which:

- will send wrong si_code by SIGBUS signal in early_kill mode, and
- can not kill the user-space in some cases resulting a synchronous
error infinite loop

Issue 1: send wrong si_code in early_kill mode

Since commit a70297d22132 ("ACPI: APEI: set memory failure flags as
MF_ACTION_REQUIRED on synchronous events")', the flag MF_ACTION_REQUIRED
could be used to determine whether a synchronous exception occurs on
ARM64 platform. When a synchronous exception is detected, the kernel is
expected to terminate the current process which has accessed a poisoned
page. This is done by sending a SIGBUS signal with error code
BUS_MCEERR_AR, indicating an action-required machine check error on
read.

However, when kill_proc() is called to terminate the processes who has
the poisoned page mapped, it sends the incorrect SIGBUS error code
BUS_MCEERR_AO because the context in which it operates is not the one
where the error was triggered.

To reproduce this problem:

#sysctl -w vm.memory_failure_early_kill=1
vm.memory_failure_early_kill = 1

# STEP2: inject an UCE error and consume it to trigger a synchronous error
#einj_mem_uc single
0: single vaddr = 0xffffb0d75400 paddr = 4092d55b400
injecting ...
triggering ...
signal 7 code 5 addr 0xffffb0d75000
page not present
Test passed

The si_code (code 5) from einj_mem_uc indicates that it is BUS_MCEERR_AO
error and it is not factually correct.

After this change:

# STEP1: enable early kill mode
#sysctl -w vm.memory_failure_early_kill=1
vm.memory_failure_early_kill = 1
# STEP2: inject an UCE error and consume it to trigger a synchronous error
#einj_mem_uc single
0: single vaddr = 0xffffb0d75400 paddr = 4092d55b400
injecting ...
triggering ...
signal 7 code 4 addr 0xffffb0d75000
page not present
Test passed

The si_code (code 4) from einj_mem_uc indicates that it is a BUS_MCEERR_AR
error as expected.

Issue 2: a synchronous error infinite loop

If a user-space process, e.g. devmem, accesses a poisoned page for which
the HWPoison flag is set, kill_accessing_process() is called to send
SIGBUS to current processs with error info. Since the memory_failure()
is executed in the kworker context, it will just do nothing but return
EFAULT. So, devmem will access the posioned page and trigger an
exception again, resulting in a synchronous error infinite loop. Such
exception loop may cause platform firmware to exceed some threshold and
reboot when Linux could have recovered from this error.

To reproduce this problem:

# STEP 1: inject an UCE error, and kernel will set HWPosion flag for related page
#einj_mem_uc single
0: single vaddr = 0xffffb0d75400 paddr = 4092d55b400
injecting ...
triggering ...
signal 7 code 4 addr 0xffffb0d75000
page not present
Test passed

# STEP 2: access the same page and it will trigger a synchronous error infinite loop
devmem 0x4092d55b400

To fix above two issues, queue memory_failure() as a task_work so that
it runs in the context of the process that is actually consuming the
poisoned data.

Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com>
Tested-by: Ma Wupeng <mawupeng1@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Xiaofei Tan <tanxiaofei@huawei.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Jane Chu <jane.chu@oracle.com>
Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://patch.msgid.link/20250714114212.31660-3-xueshuai@linux.alibaba.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

show more ...

Merge branch 'next' into for-linus

Prepare input updates for 6.11 merge window.

Merge tag 'v6.9' into next

Sync up with the mainline to bring in the new cleanup API.

Merge drm/drm-next into drm-intel-gt-next

Some display refactoring patches are needed in order to allow conflict-
less merging.

Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@k

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...

Merge drm/drm-next into drm-intel-next

Backmerge to bring Xe driver to drm-intel-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge branch 'next' into for-linus

Prepare input updates for 6.11 merge window.

Merge tag 'v6.9' into next

Sync up with the mainline to bring in the new cleanup API.

Merge drm/drm-next into drm-intel-gt-next

Some display refactoring patches are needed in order to allow conflict-
less merging.

Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@k

Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch

Conflicts:
arch/x86/include/asm/percpu.h
arch/x86/include/asm/text-patching.h

Signed-off-by: Ingo Molnar <mingo@kernel.org>

show more ...

Merge drm/drm-next into drm-intel-next

Backmerge to bring Xe driver to drm-intel-next.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers,

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

Merge drm/drm-next into drm-misc-next

Let's kickstart the v6.8 release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge branch 'tip/perf/urgent'

Avoid conflicts, base on fixes.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>

Merge tag 'acpi-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These fix issues, add new quirks, rearrange the IRQ override quirk

Merge tag 'acpi-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These fix issues, add new quirks, rearrange the IRQ override quirk
definitions, add new helpers and switch over code to using them,
rework a couple of interfaces to be more flexible, eliminate strncpy()
usage from PNP, extend the ACPI PCC mailbox driver and clean up code.

This is based on ACPI thermal driver changes that are present in the
thermal control updates for 6.7-rc1 pull request (they are depended on
by the ACPI utilities updates). However, the ACPI thermal driver
changes are not included in the list of specific ACPI changes below.

Specifics:

- Add symbol definitions related to CDAT to the ACPICA code (Dave
Jiang)

- Use the acpi_device_is_present() helper in more places and rename
acpi_scan_device_not_present() to be about enumeration (James
Morse)

- Add __printf format attribute to acpi_os_vprintf() (Su Hui)

- Clean up departures from kernel coding style in the low-level
interface for ACPICA (Jonathan Bergh)

- Replace strncpy() with strscpy() in acpi_osi_setup() (Justin Stitt)

- Fail FPDT parsing on zero length records and add proper handling
for fpdt_process_subtable() to acpi_init_fpdt() (Vasily Khoruzhick)

- Rework acpi_handle_list handling so as to manage it dynamically,
including size computation (Rafael Wysocki)

- Clean up ACPI utilities code so as to make it follow the kernel
coding style (Jonathan Bergh)

- Consolidate IRQ trigger-type override DMI tables and drop .ident
values from dmi_system_id tables used for ACPI resources management
quirks (Hans de Goede)

- Add ACPI IRQ override for TongFang GMxXGxx (Werner Sembach)

- Allow _DSD buffer data only for byte accessors and document the
_DSD data buffer GUID (Andy Shevchenko)

- Drop BayTrail and Lynxpoint pinctrl device IDs from the ACPI LPSS
driver, because it does not need them (Raag Jadav)

- Add acpi_backlight=vendor quirk for Toshiba Portégé R100 (Ondrej
Zary)

- Add "vendor" backlight quirks for 3 Lenovo x86 Android tablets
(Hans de Goede)

- Move Xiaomi Mi Pad 2 backlight quirk to its own section (Hans de
Goede)

- Annotate struct prm_module_info with __counted_by (Kees Cook)

- Fix AER info corruption in aer_recover_queue() when error status
data has multiple sections (Shiju Jose)

- Make APEI use ERST maximum execution time for slow devices (Jeshua
Smith)

- Add support for platform notification handling to the PCC mailbox
driver and modify it to support shared interrupts for multiple
subspaces (Huisong Li)

- Define common macros to use when referring to various bitfields in
the PCC generic communications channel command and status fields
and use them in some drivers (Sudeep Holla)

- Add EC GPE detection quirk for HP 250 G7 Notebook PC (Jonathan
Denose)

- Fix and clean up create_pnp_modalias() and create_of_modalias()
(Christophe JAILLET)

- Modify 2 pieces of code to use acpi_evaluate_dsm_typed() (Andy
Shevchenko)

- Define acpi_dev_uid_match() for matching _UID and use it in several
places (Raag Jadav)

- Use acpi_device_uid() for fetching _UID in 2 places (Raag Jadav)

- Add context argument to acpi_dev_install_notify_handler() (Rafael
Wysocki)

- Clarify ACPI bus concepts in the ACPI device enumeration
documentation (Rafael Wysocki)

- Switch over the ACPI AC and ACPI PAD drivers to using the platform
driver interface which, is more logically consistent than binding a
driver directly to an ACPI device object, and clean them up (Michal
Wilczynski)

- Replace strncpy() in the PNP code with either memcpy() or strscpy()
as appropriate (Justin Stitt)

- Clean up coding style in pnp.h (GuoHua Cheng)"

* tag 'acpi-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (54 commits)
ACPI: resource: Do IRQ override on TongFang GMxXGxx
perf: arm_cspmu: use acpi_dev_hid_uid_match() for matching _HID and _UID
ACPI: EC: Add quirk for HP 250 G7 Notebook PC
ACPI: x86: use acpi_dev_uid_match() for matching _UID
ACPI: utils: use acpi_dev_uid_match() for matching _UID
pinctrl: intel: use acpi_dev_uid_match() for matching _UID
ACPI: utils: Introduce acpi_dev_uid_match() for matching _UID
ACPI: sysfs: Clean up create_pnp_modalias() and create_of_modalias()
ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias()
ACPI: acpi_pad: Rename ACPI device from device to adev
ACPI: acpi_pad: Use dev groups for sysfs
ACPI: acpi_pad: Replace acpi_driver with platform_driver
ACPI: APEI: Use ERST timeout for slow devices
ACPI: scan: Rename acpi_scan_device_not_present() to be about enumeration
PNP: replace deprecated strncpy() with memcpy()
PNP: ACPI: replace deprecated strncpy() with strscpy()
perf: qcom: use acpi_device_uid() for fetching _UID
ACPI: sysfs: use acpi_device_uid() for fetching _UID
ACPI: scan: Use the acpi_device_is_present() helper in more places
ACPI: AC: Rename ACPI device from device to adev
...

show more ...

Merge branches 'acpi-video', 'acpi-prm', 'acpi-apei' and 'acpi-pcc'

Merge ACPI backlight driver updates, ACPI APEI updates, ACPI PRM updates
and changes related to ACPI PCC for 6.7-rc1:

- Add acpi

Merge branches 'acpi-video', 'acpi-prm', 'acpi-apei' and 'acpi-pcc'

Merge ACPI backlight driver updates, ACPI APEI updates, ACPI PRM updates
and changes related to ACPI PCC for 6.7-rc1:

- Add acpi_backlight=vendor quirk for Toshiba Portégé R100 (Ondrej
Zary).

- Add "vendor" backlight quirks for 3 Lenovo x86 Android tablets (Hans
de Goede).

- Move Xiaomi Mi Pad 2 backlight quirk to its own section (Hans de
Goede).

- Annotate struct prm_module_info with __counted_by (Kees Cook).

- Fix AER info corruption in aer_recover_queue() when error status data
has multiple sections (Shiju Jose).

- Make APEI use ERST max execution time value for slow devices (Jeshua
Smith).

- Add support for platform notification handling to the PCC mailbox
driver and modify it to support shared interrupts for multiple
subspaces (Huisong Li).

- Define common macros to use when referring to various bitfields in the
PCC generic communications channel command and status fields and use
them in some drivers (Sudeep Holla).

* acpi-video:
ACPI: video: Add acpi_backlight=vendor quirk for Toshiba Portégé R100
ACPI: video: Add "vendor" quirks for 3 Lenovo x86 Android tablets
ACPI: video: Move Xiaomi Mi Pad 2 quirk to its own section

* acpi-prm:
ACPI: PRM: Annotate struct prm_module_info with __counted_by

* acpi-apei:
ACPI: APEI: Use ERST timeout for slow devices
ACPI: APEI: Fix AER info corruption when error status data has multiple sections

* acpi-pcc:
soc: kunpeng_hccs: Migrate to use generic PCC shmem related macros
hwmon: (xgene) Migrate to use generic PCC shmem related macros
i2c: xgene-slimpro: Migrate to use generic PCC shmem related macros
ACPI: PCC: Add PCC shared memory region command and status bitfields
mailbox: pcc: Support shared interrupt for multiple subspaces
mailbox: pcc: Add support for platform notification handling

show more ...

ACPI: APEI: Fix AER info corruption when error status data has multiple sections

ghes_handle_aer() passes AER data to the PCI core for logging and
recovery by calling aer_recover_queue() with a poin

ACPI: APEI: Fix AER info corruption when error status data has multiple sections

ghes_handle_aer() passes AER data to the PCI core for logging and
recovery by calling aer_recover_queue() with a pointer to struct
aer_capability_regs.

The problem was that aer_recover_queue() queues the pointer directly
without copying the aer_capability_regs data. The pointer was to
the ghes->estatus buffer, which could be reused before
aer_recover_work_func() reads the data.

To avoid this problem, allocate a new aer_capability_regs structure
from the ghes_estatus_pool, copy the AER data from the ghes->estatus
buffer into it, pass a pointer to the new struct to
aer_recover_queue(), and free it after aer_recover_work_func() has
processed it.

Reported-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

show more ...

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers,

Merge remote-tracking branch 'torvalds/master' into perf-tools-next

To pick up fixes that went thru perf-tools for v6.7 and to get in sync
with upstream to check for drift in the copies of headers, etc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

show more ...

Merge drm/drm-next into drm-misc-next

Let's kickstart the v6.8 release cycle.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge branch 'tip/perf/urgent'

Avoid conflicts, base on fixes.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>

Merge tag 'acpi-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These fix issues, add new quirks, rearrange the IRQ override quirk

Merge tag 'acpi-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
"These fix issues, add new quirks, rearrange the IRQ override quirk
definitions, add new helpers and switch over code to using them,
rework a couple of interfaces to be more flexible, eliminate strncpy()
usage from PNP, extend the ACPI PCC mailbox driver and clean up code.

This is based on ACPI thermal driver changes that are present in the
thermal control updates for 6.7-rc1 pull request (they are depended on
by the ACPI utilities updates). However, the ACPI thermal driver
changes are not included in the list of specific ACPI changes below.

Specifics:

- Add symbol definitions related to CDAT to the ACPICA code (Dave
Jiang)

- Use the acpi_device_is_present() helper in more places and rename
acpi_scan_device_not_present() to be about enumeration (James
Morse)

- Add __printf format attribute to acpi_os_vprintf() (Su Hui)

- Clean up departures from kernel coding style in the low-level
interface for ACPICA (Jonathan Bergh)

- Replace strncpy() with strscpy() in acpi_osi_setup() (Justin Stitt)

- Fail FPDT parsing on zero length records and add proper handling
for fpdt_process_subtable() to acpi_init_fpdt() (Vasily Khoruzhick)

- Rework acpi_handle_list handling so as to manage it dynamically,
including size computation (Rafael Wysocki)

- Clean up ACPI utilities code so as to make it follow the kernel
coding style (Jonathan Bergh)

- Consolidate IRQ trigger-type override DMI tables and drop .ident
values from dmi_system_id tables used for ACPI resources management
quirks (Hans de Goede)

- Add ACPI IRQ override for TongFang GMxXGxx (Werner Sembach)

- Allow _DSD buffer data only for byte accessors and document the
_DSD data buffer GUID (Andy Shevchenko)

- Drop BayTrail and Lynxpoint pinctrl device IDs from the ACPI LPSS
driver, because it does not need them (Raag Jadav)

- Add acpi_backlight=vendor quirk for Toshiba Portégé R100 (Ondrej
Zary)

- Add "vendor" backlight quirks for 3 Lenovo x86 Android tablets
(Hans de Goede)

- Move Xiaomi Mi Pad 2 backlight quirk to its own section (Hans de
Goede)

- Annotate struct prm_module_info with __counted_by (Kees Cook)

- Fix AER info corruption in aer_recover_queue() when error status
data has multiple sections (Shiju Jose)

- Make APEI use ERST maximum execution time for slow devices (Jeshua
Smith)

- Add support for platform notification handling to the PCC mailbox
driver and modify it to support shared interrupts for multiple
subspaces (Huisong Li)

- Define common macros to use when referring to various bitfields in
the PCC generic communications channel command and status fields
and use them in some drivers (Sudeep Holla)

- Add EC GPE detection quirk for HP 250 G7 Notebook PC (Jonathan
Denose)

- Fix and clean up create_pnp_modalias() and create_of_modalias()
(Christophe JAILLET)

- Modify 2 pieces of code to use acpi_evaluate_dsm_typed() (Andy
Shevchenko)

- Define acpi_dev_uid_match() for matching _UID and use it in several
places (Raag Jadav)

- Use acpi_device_uid() for fetching _UID in 2 places (Raag Jadav)

- Add context argument to acpi_dev_install_notify_handler() (Rafael
Wysocki)

- Clarify ACPI bus concepts in the ACPI device enumeration
documentation (Rafael Wysocki)

- Switch over the ACPI AC and ACPI PAD drivers to using the platform
driver interface which, is more logically consistent than binding a
driver directly to an ACPI device object, and clean them up (Michal
Wilczynski)

- Replace strncpy() in the PNP code with either memcpy() or strscpy()
as appropriate (Justin Stitt)

- Clean up coding style in pnp.h (GuoHua Cheng)"

* tag 'acpi-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (54 commits)
ACPI: resource: Do IRQ override on TongFang GMxXGxx
perf: arm_cspmu: use acpi_dev_hid_uid_match() for matching _HID and _UID
ACPI: EC: Add quirk for HP 250 G7 Notebook PC
ACPI: x86: use acpi_dev_uid_match() for matching _UID
ACPI: utils: use acpi_dev_uid_match() for matching _UID
pinctrl: intel: use acpi_dev_uid_match() for matching _UID
ACPI: utils: Introduce acpi_dev_uid_match() for matching _UID
ACPI: sysfs: Clean up create_pnp_modalias() and create_of_modalias()
ACPI: sysfs: Fix create_pnp_modalias() and create_of_modalias()
ACPI: acpi_pad: Rename ACPI device from device to adev
ACPI: acpi_pad: Use dev groups for sysfs
ACPI: acpi_pad: Replace acpi_driver with platform_driver
ACPI: APEI: Use ERST timeout for slow devices
ACPI: scan: Rename acpi_scan_device_not_present() to be about enumeration
PNP: replace deprecated strncpy() with memcpy()
PNP: ACPI: replace deprecated strncpy() with strscpy()
perf: qcom: use acpi_device_uid() for fetching _UID
ACPI: sysfs: use acpi_device_uid() for fetching _UID
ACPI: scan: Use the acpi_device_is_present() helper in more places
ACPI: AC: Rename ACPI device from device to adev
...

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Merge branches 'acpi-video', 'acpi-prm', 'acpi-apei' and 'acpi-pcc'

Merge ACPI backlight driver updates, ACPI APEI updates, ACPI PRM updates
and changes related to ACPI PCC for 6.7-rc1:

- Add acpi

Merge branches 'acpi-video', 'acpi-prm', 'acpi-apei' and 'acpi-pcc'

Merge ACPI backlight driver updates, ACPI APEI updates, ACPI PRM updates
and changes related to ACPI PCC for 6.7-rc1:

- Add acpi_backlight=vendor quirk for Toshiba Portégé R100 (Ondrej
Zary).

- Add "vendor" backlight quirks for 3 Lenovo x86 Android tablets (Hans
de Goede).

- Move Xiaomi Mi Pad 2 backlight quirk to its own section (Hans de
Goede).

- Annotate struct prm_module_info with __counted_by (Kees Cook).

- Fix AER info corruption in aer_recover_queue() when error status data
has multiple sections (Shiju Jose).

- Make APEI use ERST max execution time value for slow devices (Jeshua
Smith).

- Add support for platform notification handling to the PCC mailbox
driver and modify it to support shared interrupts for multiple
subspaces (Huisong Li).

- Define common macros to use when referring to various bitfields in the
PCC generic communications channel command and status fields and use
them in some drivers (Sudeep Holla).

* acpi-video:
ACPI: video: Add acpi_backlight=vendor quirk for Toshiba Portégé R100
ACPI: video: Add "vendor" quirks for 3 Lenovo x86 Android tablets
ACPI: video: Move Xiaomi Mi Pad 2 quirk to its own section

* acpi-prm:
ACPI: PRM: Annotate struct prm_module_info with __counted_by

* acpi-apei:
ACPI: APEI: Use ERST timeout for slow devices
ACPI: APEI: Fix AER info corruption when error status data has multiple sections

* acpi-pcc:
soc: kunpeng_hccs: Migrate to use generic PCC shmem related macros
hwmon: (xgene) Migrate to use generic PCC shmem related macros
i2c: xgene-slimpro: Migrate to use generic PCC shmem related macros
ACPI: PCC: Add PCC shared memory region command and status bitfields
mailbox: pcc: Support shared interrupt for multiple subspaces
mailbox: pcc: Add support for platform notification handling

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ACPI: APEI: Fix AER info corruption when error status data has multiple sections

ghes_handle_aer() passes AER data to the PCI core for logging and
recovery by calling aer_recover_queue() with a poin

ACPI: APEI: Fix AER info corruption when error status data has multiple sections

ghes_handle_aer() passes AER data to the PCI core for logging and
recovery by calling aer_recover_queue() with a pointer to struct
aer_capability_regs.

The problem was that aer_recover_queue() queues the pointer directly
without copying the aer_capability_regs data. The pointer was to
the ghes->estatus buffer, which could be reused before
aer_recover_work_func() reads the data.

To avoid this problem, allocate a new aer_capability_regs structure
from the ghes_estatus_pool, copy the AER data from the ghes->estatus
buffer into it, pass a pointer to the new struct to
aer_recover_queue(), and free it after aer_recover_work_func() has
processed it.

Reported-by: Bjorn Helgaas <helgaas@kernel.org>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Shiju Jose <shiju.jose@huawei.com>
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

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