On Mon, Apr 25, 2016 at 04:26:19PM +0200, Niklas S?derlund wrote: > I have followed the call path from the usage in > drivers/dma/sh/rcar-dmac.c and made sure the dma_addr_t is not used in a > bad way. The dma-debug routines are called from the generic code in include/linux/dma-mapping.h, and from my reading of the other patches in your series you are calling it for these as well.