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Date:   Sat, 16 May 2020 15:32:25 +0200
From:   Ard Biesheuvel <ardb@...nel.org>
To:     Benjamin Thiel <b.thiel@...teo.de>
Cc:     linux-efi <linux-efi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Borislav Petkov <bp@...en8.de>
Subject: Re: [PATCH v2] efi: Pull up arch-specific prototype efi_systab_show_arch()

On Sat, 16 May 2020 at 15:26, Benjamin Thiel <b.thiel@...teo.de> wrote:
>
> ... in order to fix a -Wmissing-prototypes warning:
>
> arch/x86/platform/efi/efi.c:957:7: warning: no previous prototype for
> ‘efi_systab_show_arch’ [-Wmissing-prototypes]
> char *efi_systab_show_arch(char *str)
>
> Signed-off-by: Benjamin Thiel <b.thiel@...teo.de>

Thanks, I'll queue this as a fix.

Nit: please don't treat the subject line as the first N words of the
commit log, but start with a full sentence. Not all mail readers show
the subject line and the body together. I've fixed it up for now.



> ---
>  drivers/firmware/efi/efi.c | 5 +----
>  include/linux/efi.h        | 2 ++
>  2 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
> index 911a2bd0f6b7..4e3055238f31 100644
> --- a/drivers/firmware/efi/efi.c
> +++ b/drivers/firmware/efi/efi.c
> @@ -130,11 +130,8 @@ static ssize_t systab_show(struct kobject *kobj,
>         if (efi.smbios != EFI_INVALID_TABLE_ADDR)
>                 str += sprintf(str, "SMBIOS=0x%lx\n", efi.smbios);
>
> -       if (IS_ENABLED(CONFIG_IA64) || IS_ENABLED(CONFIG_X86)) {
> -               extern char *efi_systab_show_arch(char *str);
> -
> +       if (IS_ENABLED(CONFIG_IA64) || IS_ENABLED(CONFIG_X86))
>                 str = efi_systab_show_arch(str);
> -       }
>
>         return str - buf;
>  }
> diff --git a/include/linux/efi.h b/include/linux/efi.h
> index 251f1f783cdf..9430d01c0c3d 100644
> --- a/include/linux/efi.h
> +++ b/include/linux/efi.h
> @@ -1245,4 +1245,6 @@ struct linux_efi_memreserve {
>
>  void __init efi_arch_mem_reserve(phys_addr_t addr, u64 size);
>
> +char *efi_systab_show_arch(char *str);
> +
>  #endif /* _LINUX_EFI_H */
> --
> 2.20.1
>

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