On Wed, Feb 28, 2018 at 04:41:51PM +0100, Marc-André Lureau wrote: > I don't know if it's always safe to enable dma in read_raw(), how > could we know? Is there a check we could use to choose one or ther > other (and thus avoiding explicit dma/readfn argument)?
IMHO the way to go is not to try to do zero copy. Allocate a buffer and DMA there, then copy. -- MST
