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arm64 / ACPI: clean the additional checks before calling ghes_notify_sea()

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In order to remove the additional check before calling the
ghes_notify_sea(), make stub definition when !CONFIG_ACPI_APEI_SEA.

After this cleanup, we can simply call the ghes_notify_sea() to let
APEI driver handle the SEA notification.

Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Dongjiu Geng 2018-08-07 12:26:15 -04:00 committed by Rafael J. Wysocki
parent 1ffaddd029
commit 1035a07835
2 changed files with 5 additions and 6 deletions
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7
arch/arm64/mm/fault.c
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@ -727,12 +727,7 @@ static const struct fault_info fault_info[] = {
int handle_guest_sea(phys_addr_t addr, unsigned int esr)
{
int ret = -ENOENT;
if (IS_ENABLED(CONFIG_ACPI_APEI_SEA))
ret = ghes_notify_sea();
return ret;
return ghes_notify_sea();
}
asmlinkage void __exception do_mem_abort(unsigned long addr, unsigned int esr,

4
include/acpi/ghes.h
View File

@ -118,6 +118,10 @@ static inline void *acpi_hest_get_next(struct acpi_hest_generic_data *gdata)
(void *)section - (void *)(estatus + 1) < estatus->data_length; \
section = acpi_hest_get_next(section))
#ifdef CONFIG_ACPI_APEI_SEA
int ghes_notify_sea(void);
#else
static inline int ghes_notify_sea(void) { return -ENOENT; }
#endif
#endif /* GHES_H */