On Fri, 01 Feb 2019 09:48:01 +0100, Christoph Hellwig wrote: > > The DMA API generally relies on a struct device to work properly, and > only barely works without one for legacy reasons. Pass the easily > available struct device from the platform_device to remedy this. > > Also use GFP_KERNEL instead of GFP_USER as the gfp_t for the memory > allocation, as we should treat this allocation as a normal kernel one. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: Takashi Iwai <tiwai@xxxxxxx> thanks, Takashi