On Sat, Feb 19, 2022 at 08:52:18AM +0800, Baoquan He wrote: > Use dma_alloc_noncoherent() instead to get the DMA buffer. > > [ 42.hyeyoo@xxxxxxxxx: Use dma_alloc_noncoherent() instead of > __get_free_pages. Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>