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SubjectRe: [PATCH AUTOSEL 5.2 42/76] drm/msm: stop abusing dma_map/unmap for cache
On Fri, Aug 02, 2019 at 05:14:35PM -0700, Rob Clark wrote:
>Hi Sasha,
>It's probably best *not* to backport this patch.. drm/msm abuses the
>DMA API in a way that it is not intended be used, to work around the
>lack of cache sync API exported to kernel modules on arm/arm64. I
>couldn't really guarantee that this patch does the right thing on
>older versions of DMA API, so best to leave things as they were.

Now dropped, thank you.


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