Re: [PATCH] dma-mapping: no need to pass a bus_type into get_arch_dma_ops()

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On Tue, Feb 14, 2023, at 15:01, Greg Kroah-Hartman wrote:
> The get_arch_dma_ops() arch-specific function never does anything with
> the struct bus_type that is passed into it, so remove it entirely as it
> is not needed.
> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> ---
> Note: Unless someone objects, I would like to take this through the
> driver-core tree, as further bus_type cleanups depend on it, and it's
> stand-alone from everyone else's tree at the moment from what I can
> determine.

Nice find!

Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>

It looks like the bus was last required in 2020 before commit
255a69a94b8c ("sparc32: use per-device dma_ops").

    Arnd



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