Re: [PATCH v2] powerpc: select HAVE_PATA_PLATFORM in PPC instead of creating a PPC dependency

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On Fri, Sep 9, 2022, at 11:03 AM, Lukas Bulwahn wrote:
> Commit cc18e0fea790 ("LIBATA: Add HAVE_PATA_PLATFORM to select
> PATA_PLATFORM driver") introduces config HAVE_PATA_PLATFORM, and expects
> that all architectures simply select this config when the architecture
> supports using the PATA_PLATFORM driver.
>
> This is properly implemented already for all architectures except for the
> powerpc architecture. Implement this for powerpc now.
>
> Adjust the config of the powerpc architecture to use the config
> HAVE_PATA_PLATFORM and simplify the config PATA_PLATFORM to not mention
> any specific architecture anymore.
>
> Signed-off-by: Lukas Bulwahn <lukas.bulwahn@xxxxxxxxx>
> ---
>  arch/powerpc/Kconfig | 1 +
>  drivers/ata/Kconfig  | 2 +-
>  2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 39d71d7701bd..2575e21b6e6b 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -237,6 +237,7 @@ config PPC
>  	select HAVE_MOD_ARCH_SPECIFIC
>  	select HAVE_NMI				if PERF_EVENTS || (PPC64 && PPC_BOOK3S)
>  	select HAVE_OPTPROBES
> +	select HAVE_PATA_PLATFORM
>  	select HAVE_PERF_EVENTS
>  	select HAVE_PERF_EVENTS_NMI		if PPC64
>  	select HAVE_PERF_REGS

I don't see a single powerpc machine that creates a
 name="pata_platform" platform_device. I suspect this was
only needed bwfore 2007 commit 9cd55be4d223 ("[POWERPC] pasemi:
Move electra-ide to pata_of_platform"), so the "|| PPC"
bit should just get removed without adding the HAVE_PATA_PLATFORM
bit.

       Arnd



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