[PATCH 03/12] mtip32xx: don't use block layer bounce buffers
From: Christoph Hellwig <hidden>
Date: 2018-04-16 08:50:51
Also in:
linux-arch, linux-block, linux-ide, linux-iommu, linux-scsi, lkml
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
mtip32xx just sets the block bounce limit to the dma mask, which means that the iommu or swiotlb already take care of the bounce buffering, and the block bouncing can be removed. Signed-off-by: Christoph Hellwig <redacted> --- drivers/block/mtip32xx/mtip32xx.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 769c551e3d71..b03bb27dcc58 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c@@ -3862,7 +3862,6 @@ static int mtip_block_initialize(struct driver_data *dd) blk_queue_max_hw_sectors(dd->queue, 0xffff); blk_queue_max_segment_size(dd->queue, 0x400000); blk_queue_io_min(dd->queue, 4096); - blk_queue_bounce_limit(dd->queue, dd->pdev->dma_mask); /* Signal trim support */ if (dd->trim_supp == true) {
--
2.17.0