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. CC: Tyler Baicar <tbai...@codeaurora.org> CC: James Morse <james.mo...@arm.com> Signed-off-by: Dongjiu Geng <gengdong...@huawei.com> Acked-by: Will Deacon <will.dea...@arm.com> --- This cleanup is ever mentioned by Mark Rutland in [1] [1]: https://lkml.org/lkml/2018/5/31/289 Change since v1: 1. Update the commit messages 2. CC Tyler and James 3. Add Acked-by of Will --- arch/arm64/mm/fault.c | 7 +------ include/acpi/ghes.h | 4 ++++ 2 files changed, 5 insertions(+), 6 deletions(-) diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index b8eecc7..9ffe01d 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -727,12 +727,7 @@ static int do_sea(unsigned long addr, unsigned int esr, struct pt_regs *regs) 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, diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h index 1624e2b..82cb4eb 100644 --- a/include/acpi/ghes.h +++ b/include/acpi/ghes.h @@ -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 */ -- 1.9.1
