On Thu, Mar 21, 2019 at 06:36:21PM +0800, Hillf Danton wrote: > On both the arch and dma core sides, see commit 6829e274a623 and 518a2f1925c3 > respectively, efforts are paid for clearing memory returned from dma_alloc_* > functions, so on the driver side we can get our duty offloaded by explicitly > asking the dma core for a zero-ed buffer. And why do you think you then need to pass __GFP_ZERO?
