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SubjectRe: [PATCH V6 20/33] csky/dma: fix up dma_mapping error
On Fri, Sep 28, 2018 at 09:21:16AM -0700, Christoph Hellwig wrote:
> On Fri, Sep 28, 2018 at 08:51:17AM +0800, Guo Ren wrote:
> > The arch_sync_dma_for_cpu()/arch_sync_dma_for_device() implementation is
> > broken for some combinations that end up in a BUG() instead of performing
> > the necessary flushes.
>
> This should be folded into the original patch adding this code.
Ok, I'll rebase it.

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