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SubjectRe: [PATCH V6 2/3] dma-mapping: Rework dma_get_cache_alignment()function
On Thu, Sep 21, 2017 at 12:28:25PM +0800, 陈华才 wrote:
> Hi, Christoph,
>
> I have changed dma_get_cache_alignment's return value, and I don't know whether those drivers want to return ARCH_DMA_MINALIGN unconditionally. So I pass a NULL for those drivers, in order to keep their old behavior.

Per our documentation yes, they do want ARCH_DMA_MINALIGN. Please
Cc all the driver maintainers on your updated patch so that they can
review it, though.

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