Re: [PATCH AUTOSEL 5.2 42/76] drm/msm: stop abusing dma_map/unmap for cache

[Sasha Levin]

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.

--
Thanks,
Sasha