Re: [PATCH v2] powerpc/wii: Fix declaration made after definition

From: Michael Ellerman
Date: Thu May 28 2020 - 09:32:10 EST


Nathan Chancellor <natechancellor@xxxxxxxxx> writes:
> A 0day randconfig uncovered an error with clang, trimmed for brevity:
>
> arch/powerpc/platforms/embedded6xx/wii.c:195:7: error: attribute
> declaration must precede definition [-Werror,-Wignored-attributes]
> if (!machine_is(wii))
> ^
>
> The macro machine_is declares mach_##name but define_machine actually
> defines mach_##name, hence the warning.
>
> To fix this, move define_machine after the machine_is usage.
>
> Fixes: 5a7ee3198dfa ("powerpc: wii: platform support")
> Reported-by: kbuild test robot <lkp@xxxxxxxxx>
> Link: https://github.com/ClangBuiltLinux/linux/issues/989
> Reviewed-by: Nick Desaulniers <ndesaulniers@xxxxxxxxxx>
> Signed-off-by: Nathan Chancellor <natechancellor@xxxxxxxxx>
> ---
>
> v1 -> v2:
>
> * s/is_machine/machine_is/ (Nick)
>
> * Add Nick's reviewed-by tag.

I already picked up v1, and it's behind a merge so I don't want to
rebase it. I'll live with the typo. Thanks.

cheers