Messages in this thread | | | Date | Mon, 30 Sep 2019 23:37:44 -0700 | From | Christoph Hellwig <> | Subject | Re: [PATCH] media: uvcvideo: Use streaming DMA APIs to transfer buffers |
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On Mon, Sep 30, 2019 at 01:23:10AM -0700, Christoph Hellwig wrote: > And drivers really have no business looking at the dma mask. I have > a plan for dma_alloc_pages API that could replace that cruft, but > until then please use GFP_KERNEL and let the dma subsystem bounce > buffer if needed.
Can you try this series:
http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma_alloc_pages
and see if it does whay you need for usb?
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