Messages in this thread | | | Date | Mon, 21 Jan 2019 13:30:28 -0800 | From | Christoph Hellwig <> | Subject | Re: [PATCH 3/4] dma-buf: add support for mapping with dma mapping attributes |
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On Mon, Jan 21, 2019 at 12:20:42PM -0800, Liam Mark wrote: > I have left this to clients, but if they own the buffer they can have the > knowledge as to whether CPU access is needed in that use case (example for > post-processing).
That is an API design which the user is more likely to get wrong than right and thus does not pass the smell test.
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