6.5-stable review patch. If anyone has any objections, please let me know.
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From: Hanjun Guo guohanjun@huawei.com
commit d5921c460e543228d100daf67dac7a03dfaaa40a upstream.
acpi_agdi_init() in acpi_arm_init() will register a SDEI event, so it needs the SDEI subsystem to be initialized (which is done in acpi_ghes_init()) before the AGDI driver probing.
In commit fcea0ccf4fd7 ("ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init()"), the acpi_agdi_init() was called before acpi_ghes_init() and it causes following failure:
| [ 0.515864] sdei: Failed to create event 1073741825: -5 | [ 0.515866] agdi agdi.0: Failed to register for SDEI event 1073741825 | [ 0.515867] agdi: probe of agdi.0 failed with error -5 | ... | [ 0.516022] sdei: SDEIv1.0 (0x0) detected in firmware.
Fix it by moving acpi_arm_init() to the place of after acpi_ghes_init().
Fixes: fcea0ccf4fd7 ("ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init()") Reported-by: D Scott Phillips scott@os.amperecomputing.com Signed-off-by: Hanjun Guo guohanjun@huawei.com Reviewed-by: Sudeep Holla sudeep.holla@arm.com Tested-by: D Scott Phillips scott@os.amperecomputing.com Cc: 6.5+ stable@vger.kernel.org # 6.5+ Signed-off-by: Rafael J. Wysocki rafael.j.wysocki@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/acpi/bus.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -1387,10 +1387,10 @@ static int __init acpi_init(void) acpi_init_ffh();
pci_mmcfg_late_init(); - acpi_arm_init(); acpi_viot_early_init(); acpi_hest_init(); acpi_ghes_init(); + acpi_arm_init(); acpi_scan_init(); acpi_ec_init(); acpi_debugfs_init();