On 21-03-18 07:32:45, Christoph Hellwig wrote: > On Wed, Mar 17, 2021 at 08:13:59PM +0100, Sanket Parmar wrote: > > dma_alloc_coherent() might fail on the platform with a small > > DMA region. > > > > To avoid such failure in cdns3_prepare_aligned_request_buf(), > > dma_alloc_coherent() is replaced with dma_alloc_noncoherent() > > to allocate aligned request buffer of dynamic length. > > > > Reported-by: Aswath Govindraju <a-govindraju@xxxxxx> > > Signed-off-by: Sanket Parmar <sparmar@xxxxxxxxxxx> > > Looks good to me: > > Reviewed-by: Christoph Hellwig <hch@xxxxxx> Hi Christoph, I would like to confirm the dma_alloc_noncoherent allocates the memory less than PAGE_SIZE if buffer size it would like to allocate is small (eg, 64 bytes)? -- Thanks, Peter Chen
