lkml.org 
[lkml]   [2018]   [Aug]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH RESEND v2] arm64: clean the additional checks before calling ghes_notify_sea()
CC Borislav


2018-08-08 0:26 GMT+08:00 Dongjiu Geng <gengdongjiu@huawei.com>:
> 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 <tbaicar@codeaurora.org>
> CC: James Morse <james.morse@arm.com>
> Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
> Acked-by: Will Deacon <will.deacon@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
>

\
 
 \ /
  Last update: 2018-08-09 14:33    [W:0.060 / U:2.168 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site