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?
