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linux/drivers/acpi
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Nathan Chancellor b584bfbd7e ACPI: APEI: GHES: Disable KASAN instrumentation when compile testing with clang < 18 
After a recent innocuous change to drivers/acpi/apei/ghes.c, building
ARCH=arm64 allmodconfig with clang-17 or older (which has both
CONFIG_KASAN=y and CONFIG_WERROR=y) fails with:

  drivers/acpi/apei/ghes.c:902:13: error: stack frame size (2768) exceeds limit (2048) in 'ghes_do_proc' [-Werror,-Wframe-larger-than]
    902 | static void ghes_do_proc(struct ghes *ghes,
        |             ^

A KASAN pass that removes unneeded stack instrumentation, enabled by
default in clang-18 [1], drastically improves stack usage in this case.

To avoid the warning in the common allmodconfig case when it can break
the build, disable KASAN for ghes.o when compile testing with clang-17
and older. Disabling KASAN outright may hide legitimate runtime issues,
so live with the warning in that case; the user can either increase the
frame warning limit or disable -Werror, which they should probably do
when debugging with KASAN anyways.

Closes: https://github.com/ClangBuiltLinux/linux/issues/2148
Link: 51fbab1345 [1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Cc: All applicable <stable@vger.kernel.org>
Link: https://patch.msgid.link/20260114-ghes-avoid-wflt-clang-older-than-18-v1-1-9c8248bfe4f4@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-01-28 21:35:30 +01:00
..
acpica ACPICA: Avoid walking the Namespace if start_node is NULL 2025-11-25 22:14:11 +01:00
apei ACPI: APEI: GHES: Disable KASAN instrumentation when compile testing with clang < 18 2026-01-28 21:35:30 +01:00
arm64 arm64 updates for 6.19: 2025-12-02 17:03:55 -08:00
dptf Thermal control updates for 6.19-rc1 2025-12-02 17:49:12 -08:00
nfit ACPI: NFIT: Fix incorrect ndr_desc being reportedin dev_err message 2025-09-16 10:57:37 -05:00
numa cxl for v6.19 2025-12-04 17:55:18 -08:00
pmic ACPI: PMIC: Remove unneeded check in tps68470_pmic_opregion_probe() 2024-08-02 17:05:08 +02:00
riscv ACPI: RIMT: Fix unused function warnings when CONFIG_IOMMU_API is disabled 2025-10-17 21:45:08 -06:00
x86 Merge branches 'acpi-misc' and 'pnp' 2025-11-28 15:08:38 +01:00
ac.c ACPI: Switch back to struct platform_driver::remove() 2024-11-12 21:30:30 +01:00
acpi_adxl.c
acpi_apd.c ACPI: APD: Use strscpy() instead of strcpy() 2024-11-05 21:35:35 +01:00
acpi_configfs.c
acpi_dbg.c ACPI: debug: fix signedness issues in read/write helpers 2025-09-23 15:45:28 +02:00
acpi_extlog.c ACPI: extlog: Trace CPER CXL Protocol Error Section 2026-01-14 17:09:34 +01:00
acpi_ffh.c ACPI: FFH: Drop the inclusion of linux/arm-smccc.h 2023-06-12 19:28:20 +02:00
acpi_fpdt.c ACPI: FPDT: properly handle invalid FPDT subtables 2023-10-03 21:12:22 +02:00
acpi_ipmi.c ACPI: IPMI: Add helper to wait for when SMI is selected 2024-04-28 10:07:34 -07:00
acpi_lpat.c
acpi_lpit.c x86/msr: Rename 'rdmsrl_safe()' to 'rdmsrq_safe()' 2025-04-10 11:58:38 +02:00
acpi_memhotplug.c mm/memory_hotplug: allow memmap on memory hotplug request to fallback 2023-08-21 13:37:48 -07:00
acpi_mrrm.c ACPI: MRRM: Fix memory leaks and improve error handling 2025-11-07 21:48:49 +01:00
acpi_pad.c ACPI: PAD: Update arguments of mwait_idle_with_hints() 2025-06-10 20:47:56 +02:00
acpi_pcc.c ACPI: PCC: Fix race condition by removing static qualifier 2025-12-15 13:00:33 +01:00
acpi_platform.c ACPI: platform: Move SMB0001 HID to the header and reuse 2023-07-04 19:28:20 +02:00
acpi_pnp.c More ACPI updates for 6.15-rc1 2025-04-02 15:16:30 -07:00
acpi_processor.c ACPI: processor: idle: Add module import namespace 2025-09-02 16:08:53 +02:00
acpi_tad.c ACPI: TAD: Use PM_RUNTIME_ACQUIRE()/PM_RUNTIME_ACQUIRE_ERR() 2025-11-14 21:25:15 +01:00
acpi_video.c ACPI: video: Fix use-after-free in acpi_video_switch_brightness() 2025-10-23 20:36:55 +02:00
acpi_watchdog.c ACPI: use %pe for better readability of errors while printing 2024-02-16 19:31:12 +01:00
battery.c ACPI: battery: Drop redundant locking 2025-10-27 20:19:52 +01:00
bgrt.c sysfs: treewide: switch back to attribute_group::bin_attrs 2025-06-17 10:44:15 +02:00
bus.c ACPI: Fix typos 2025-07-22 17:12:41 +02:00
button.c ACPI: button: Call input_free_device() on failing input device registration 2025-10-22 21:19:23 +02:00
container.c
cppc_acpi.c ACPI: CPPC: Fix missing PCC check for guaranteed_perf 2025-12-15 12:56:46 +01:00
debugfs.c
device_pm.c ACPI updates for 6.17-rc1 2025-07-28 20:44:42 -07:00
device_sysfs.c ACPI: sysfs: Use ACPI_FREE() for freeing an ACPI object 2025-08-25 20:21:44 +02:00
dock.c ACPI: scan: Introduce typedef:s for struct acpi_hotplug_context members 2024-04-04 21:19:02 +02:00
ec.c ACPI: EC: Add WQ_PERCPU to alloc_workqueue() users 2025-11-03 18:45:42 +01:00
ec_sys.c
event.c ACPI: event: Use strscpy() instead of strcpy() 2024-11-05 21:35:35 +01:00
evged.c ACPI: Switch back to struct platform_driver::remove() 2024-11-12 21:30:30 +01:00
fan.h Thermal control updates for 6.19-rc1 2025-12-02 17:49:12 -08:00
fan_attr.c ACPI: fan: Use ACPI handle when retrieving _FST 2025-10-24 10:29:08 +02:00
fan_core.c ACPI: fan: Add support for Microsoft fan extensions 2025-10-27 20:56:01 +01:00
fan_hwmon.c ACPI: fan: Add hwmon notification support 2025-10-27 20:56:01 +01:00
glue.c ACPI: Fix selecting wrong ACPI fwnode for the iGPU on some Dell laptops 2023-01-10 20:23:48 +01:00
hed.c ACPI: HED: Always initialize before evged 2025-02-18 19:24:29 +01:00
internal.h ACPI: DPTF: Remove int340x thermal scan handler 2025-11-07 20:45:37 +01:00
ioapic.c ACPI: Silence missing prototype warnings 2022-12-30 19:12:30 +01:00
irq.c ACPI: irq: Add interrupt affinity reporting interface 2025-10-27 17:16:32 +01:00
Kconfig ACPI: extlog: Trace CPER CXL Protocol Error Section 2026-01-14 17:09:34 +01:00
Makefile ACPI: MRRM: Minimal parse of ACPI MRRM table 2025-05-12 15:43:16 +02:00
mipi-disco-img.c ACPI: bus: change the prototype for acpi_get_physical_device_location 2024-12-19 20:59:35 +01:00
nhlt.c ACPI: NHLT: Streamline struct naming 2024-03-27 16:36:45 +01:00
nvs.c
osi.c ACPI: OSI: Stop advertising support for "3.0 _SCP Extensions" 2025-05-16 15:53:26 +02:00
osl.c ACPI: OSL: Add WQ_PERCPU to alloc_workqueue() users 2025-11-03 18:45:42 +01:00
pci_irq.c ACPI: Use str_low_high() helper in two places 2025-08-25 20:25:53 +02:00
pci_link.c syscore: Pass context data to callbacks 2025-11-14 10:01:52 +01:00
pci_mcfg.c PCI/ACPI: Increase Loongson max PCI hosts to 8 2024-08-01 18:04:05 -05:00
pci_root.c ACPI: PCI: Constify fwnode_handle in acpi_pci_root_remap_iospace() 2025-05-09 20:47:26 +02:00
pci_slot.c ACPI: use %pe for better readability of errors while printing 2024-02-16 19:31:12 +01:00
pfr_telemetry.c Merge branch 'acpi-misc' 2024-11-15 20:52:02 +01:00
pfr_update.c ACPI: pfr_update: Fix the driver update version check 2025-08-20 15:30:36 +02:00
platform_profile.c acpi: platform_profile - Add max-power profile option 2025-11-28 12:03:22 +02:00
power.c ACPI: PM: Add HP EliteBook 855 G7 WWAN modem power resource quirk 2025-08-25 16:25:54 +02:00
pptt.c ACPI / PPTT: Add a helper to fill a cpumask from a cache_id 2025-11-19 18:34:14 +00:00
prmt.c ACPI: PRM: Add acpi_prm_handler_available() 2025-10-27 15:45:22 +01:00
proc.c ACPI: proc: Prefer to use octal permission 2025-06-26 21:08:13 +02:00
processor_core.c ACPI: processor_core: fix map_x2apic_id for amd-pstate on am4 2025-11-26 18:06:25 +01:00
processor_driver.c Revert "ACPI: processor: Update cpuidle driver check in __acpi_processor_start()" 2025-11-27 20:52:55 +01:00
processor_idle.c Merge back ACPI processor driver changes for 6.19 2025-11-26 13:56:30 +01:00
processor_pdc.c ACPI: processor: Fix uninitialized access of buf in acpi_set_pdc_bits() 2023-09-18 12:16:16 +02:00
processor_perflib.c ACPI: processor: perflib: Move problematic pr->performance check 2025-08-12 15:33:58 +02:00
processor_thermal.c ACPI: processor: thermal: Release policy references using __free() 2025-09-08 19:53:32 +02:00
processor_throttling.c ACPI: processor: throttling: Remove space before newline 2025-07-21 16:45:40 +02:00
property.c ACPI: property: use min() instead of min_t() 2025-11-24 20:45:38 +01:00
reboot.c
resource.c Merge branches 'acpi-apei', 'acpi-misc' and 'pnp' 2025-09-29 15:28:51 +02:00
sbs.c ACPI: SBS: Fix present test in acpi_battery_read() 2025-11-03 17:29:52 +01:00
sbshc.c Merge branch 'acpi-misc' 2024-11-15 20:52:02 +01:00
sbshc.h
scan.c Thermal control updates for 6.19-rc1 2025-12-02 17:49:12 -08:00
sleep.c soc: driver updates for 6.19 2025-12-05 17:29:04 -08:00
sleep.h ACPI: PM: s2idle: Staticise LPS0 callback functions 2025-10-20 20:39:33 +02:00
spcr.c ACPI: SPCR: Check for table version when using precise baudrate 2025-10-27 20:43:41 +01:00
sysfs.c sysfs: treewide: switch back to bin_attribute::read()/write() 2025-06-17 10:44:13 +02:00
tables.c ACPI / MPAM: Parse the MPAM table 2025-11-19 18:34:20 +00:00
thermal.c ACPI: thermal: Add WQ_PERCPU to alloc_workqueue() users 2025-11-03 18:45:42 +01:00
thermal_lib.c module: Convert symbol namespace to string literal 2024-12-02 11:34:44 -08:00
tiny-power-button.c ACPI: tiny-power-button: Eliminate the driver notify callback 2023-06-16 19:48:09 +02:00
utils.c ACPI: bus: change the prototype for acpi_get_physical_device_location 2024-12-19 20:59:35 +01:00
video_detect.c ACPI: video: force native for Lenovo 82K8 2025-08-25 20:00:17 +02:00
viot.c ACPI: VIOT: Remove (explicitly) unused header 2025-05-12 15:43:16 +02:00
wakeup.c ACPI: wakeup: Drop unneeded casting for sleep_state 2025-06-26 21:08:13 +02:00