linux-stable/drivers/acpi/apei
Dan Williams f3e6b3ae9c acpi/ghes: Remove CXL CPER notifications
Initial tests with the CXL CPER implementation identified that error
reports were being duplicated in the log and the trace event [1].  Then
it was discovered that the notification handler took sleeping locks
while the GHES event handling runs in spin_lock_irqsave() context [2]

While the duplicate reporting was fixed in v6.8-rc4, the fix for the
sleeping-lock-vs-atomic collision would enjoy more time to settle and
gain some test cycles.  Given how late it is in the development cycle,
remove the CXL hookup for now and try again during the next merge
window.

Note that end result is that v6.8 does not emit CXL CPER payloads to the
kernel log, but this is in line with the CXL trend to move error
reporting to trace events instead of the kernel log.

Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: http://lore.kernel.org/r/20240108165855.00002f5a@Huawei.com [1]
Closes: http://lore.kernel.org/r/b963c490-2c13-4b79-bbe7-34c6568423c7@moroto.mountain [2]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2024-02-20 22:50:52 -08:00
..
Kconfig ACPI / APEI: Switch NOTIFY_SEA to use the estatus queue 2019-02-07 23:10:45 +01:00
Makefile
apei-base.c ACPI: APEI: Remove a useless include 2022-12-02 20:18:50 +01:00
apei-internal.h efi: fix missing prototype warnings 2023-05-25 09:26:19 +02:00
bert.c ACPI: APEI: mark bert_disable as __initdata 2023-06-12 19:23:25 +02:00
einj.c ACPI: APEI: EINJ: Add support for vendor defined error types 2023-11-21 21:10:44 +01:00
erst-dbg.c ACPI: APEI: Fix missing ERST record id 2022-04-13 20:29:24 +02:00
erst.c ACPI: APEI: Use ERST timeout for slow devices 2023-10-24 20:50:17 +02:00
ghes.c acpi/ghes: Remove CXL CPER notifications 2024-02-20 22:50:52 -08:00
hest.c ACPI: APEI: fix return value of __setup handlers 2022-03-08 19:43:39 +01:00