Re: [PATCH v2 1/2] powerpc/powermac: add missing g5_phy_disable_cpu1() declaration

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Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> writes:
> g5_phy_disable_cpu1() is used outside of platforms/powermac/feature.c,
> so it should have a declaration to fix W=1 warning:
>
>   arch/powerpc/platforms/powermac/feature.c:1533:6:
>     error: no previous prototype for ‘g5_phy_disable_cpu1’ [-Werror=missing-prototypes]
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
>
> ---
>
> Changes since v1:
> 1. Drop declaration in powermac/smp.c

Sorry I missed v1, so I'm going to ask for more changes :}

>  arch/powerpc/include/asm/pmac_feature.h | 4 ++++

Putting it here exposes it to the whole kernel, but it's only needed
inside arch/powerpc/platforms/powermac.

The right place for the prototype is arch/powerpc/platforms/powermac/pmac.h,
which is for platform internal prototypes.

>  arch/powerpc/platforms/powermac/smp.c   | 2 --
>  2 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/include/asm/pmac_feature.h b/arch/powerpc/include/asm/pmac_feature.h
> index e08e829261b6..7703e5bf1203 100644
> --- a/arch/powerpc/include/asm/pmac_feature.h
> +++ b/arch/powerpc/include/asm/pmac_feature.h
> @@ -143,6 +143,10 @@
>   */
>  struct device_node;
>  
> +#ifdef CONFIG_PPC64
> +void g5_phy_disable_cpu1(void);
> +#endif /* CONFIG_PPC64 */

The ifdef around the prototype doesn't gain much, and is extra visual
noise, so I'd rather without it.

cheers




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