[RESEND PATCH v3 0/9] Make ghes_edac a proper module

Jia He
2022-08-22T15:41:20Z

Commit dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES in
apci_init()") introduced a bug that ghes_edac_register() would be invoked
before edac_init(). Because at that time, the bus "edac" hasn't been even
registered, this created sysfs /devices/mc0 instead of
/sys/devices/system/edac/mc/mc0 on an Ampere eMag server.

Changelog:
v3:
- refine the commit logs
- introduce ghes preferred and present flag (by Toshi)
- move force_load to setup parameter
- add the ghes_edac_preferred() check for x86/Arm edac drivers (incompleted list)

v2:
- add acked-by tag of Patch 1 from Ard
- split the notifier patch
- add 2 patch to get regular drivers selected when ghes edac is not loaded
- fix an errno in igen6 driver
- add a patch to fix the sparse warning of ghes
- refine the commit logs

Jia He (9):
efi/cper: export several helpers for ghes_edac to use
EDAC/ghes: Add a notifier for reporting memory errors
EDAC/ghes: Make ghes_edac a proper module to remove the dependency on
ghes
EDAC/ghes: Move ghes_edac.force_load to setup parameter
EDAC: Don't load chipset-specific edac drivers when ghes_edac is
preferred
ghes: Introduce a flag ghes_present
apei/ghes: Use unrcu_pointer for cmpxchg
EDAC/igen6: Keep returned errno consistent when edac mc has been
enabled
edac: Don't load Arm specific edac drivers when ghes_edac is preferred

.../admin-guide/kernel-parameters.txt | 5 +
drivers/acpi/apei/ghes.c | 94 ++++++++++++++--
drivers/edac/Kconfig | 4 +-
drivers/edac/amd64_edac.c | 3 +
drivers/edac/armada_xp_edac.c | 3 +
drivers/edac/edac_module.h | 1 +
drivers/edac/ghes_edac.c | 102 +++++++++++-------
drivers/edac/i10nm_base.c | 3 +
drivers/edac/igen6_edac.c | 5 +-
drivers/edac/layerscape_edac.c | 3 +
drivers/edac/pnd2_edac.c | 3 +
drivers/edac/sb_edac.c | 3 +
drivers/edac/skx_base.c | 3 +
drivers/edac/thunderx_edac.c | 3 +
drivers/edac/xgene_edac.c | 3 +
drivers/firmware/efi/cper.c | 3 +
include/acpi/ghes.h | 38 +++----
17 files changed, 204 insertions(+), 75 deletions(-)

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2.25.1