On 02/19/22 at 08:17am, Christoph Hellwig wrote: > On Sat, Feb 19, 2022 at 08:52:20AM +0800, Baoquan He wrote: > > if (request_dma(dma, DRIVER_NAME)) > > goto err; > > > > + dma_set_mask_and_coherent(mmc_dev(host->mmc), DMA_BIT_MASK(24)); > > This also sets the streaming mask, but the driver doesn't seem to make > use of that. Please document it in the commit log. Thanks for reviewing. I will change it to dma_set_mask(), and describe this change in patch log. > > Also setting smaller than 32 bit masks can fail, so this should have > error handling. OK, will check and add error handling.
