linux-kernel - Re: [PATCH 10/22] microblaze: include linux/cpu.h for trap

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Date:   Wed, 08 Nov 2023 22:07:18 +0100
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Geert Uytterhoeven" <geert@...ux-m68k.org>,
        "Arnd Bergmann" <arnd@...nel.org>
Cc:     "Andrew Morton" <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org,
        "Masahiro Yamada" <masahiroy@...nel.org>,
        linux-kbuild@...r.kernel.org, "Matt Turner" <mattst88@...il.com>,
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Subject: Re: [PATCH 10/22] microblaze: include linux/cpu.h for trap_init() prototype

On Wed, Nov 8, 2023, at 21:42, Geert Uytterhoeven wrote:
>
> On Wed, Nov 8, 2023 at 2:01 PM Arnd Bergmann <arnd@...nel.org> wrote:
>> From: Arnd Bergmann <arnd@...db.de>
>>
>> Microblaze runs into a single -Wmissing-prototypes warning when that is
>> enabled:
>>
>> arch/microblaze/kernel/traps.c:21:6: warning: no previous prototype for 'trap_init' [-Wmissing-prototypes]
>>
>> Include the right header to avoid this.
>>
>> Signed-off-by: Arnd Bergmann <arnd@...db.de>
>
> Thanks for your patch!
>
>>  arch/alpha/kernel/traps.c      | 1 +
>>  arch/csky/include/asm/traps.h  | 2 --
>>  arch/csky/kernel/traps.c       | 1 +
>>  arch/m68k/coldfire/vectors.c   | 3 +--
>>  arch/m68k/coldfire/vectors.h   | 3 ---
>
> Ah, so this is where the m68k changes listed in the cover letter are
> hiding ;-)
>
>>  arch/microblaze/kernel/traps.c | 1 +
>>  arch/sparc/kernel/traps_32.c   | 1 +
>>  arch/sparc/kernel/traps_64.c   | 1 +
>>  arch/x86/include/asm/traps.h   | 1 -
>>  arch/x86/kernel/traps.c        | 1 +
>>  10 files changed, 7 insertions(+), 8 deletions(-)
>>  delete mode 100644 arch/m68k/coldfire/vectors.h
>
> Obviously the non-microblaze changes should be spun off in separate
> patches.

I messed up one of my rebases here and accidentally sent
the wrong changelog text. My intention was to have the
combined patch but with this text:

    arch: include linux/cpu.h for trap_init() prototype
    
    some architectures run into a -Wmissing-prototypes warning
    for trap_init()
    
    arch/microblaze/kernel/traps.c:21:6: warning: no previous prototype for 'trap_init' [-Wmissing-prototypes]
    
    Include the right header to avoid this consistently, removing
    the extra declarations on m68k and x86 that were added as local
    workarounds already.
    
    Signed-off-by: Arnd Bergmann <arnd@...db.de>


I made the same mistake with the "arch: add do_page_fault prototypes"
patch that was missing an explanation.

      Arnd