On Tue, Jul 23, 2019 at 02:26:48PM +0900, Yoshihiro Shimoda wrote: > When the max_segs of a mmc host is smaller than 512, the mmc > subsystem tries to use 512 segments if DMA MAP layer can merge > the segments, and then the mmc subsystem exposes such information > to the block layer by using blk_queue_can_use_dma_map_merging(). > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx> > Reviewed-by: Christoph Hellwig <hch@xxxxxx> > Reviewed-by: Ulf Hansson <ulf.hansson@xxxxxxxxxx> Reviewed-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
