From: Leon Romanovsky <leonro@nvidia.com>

After introduction of dma_map_phys(), there is no need to convert
from physical address to struct page in order to map page. So let's
use it directly.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
  block/blk-mq-dma.c | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/blk-mq-dma.c b/block/blk-mq-dma.c
index ad283017caef..37e2142be4f7 100644
--- a/block/blk-mq-dma.c
+++ b/block/blk-mq-dma.c

@@ -87,8 +87,8 @@ static bool blk_dma_map_bus(struct blk_dma_iter *iter, struct phys_vec *vec)
  static bool blk_dma_map_direct(struct request *req, struct device *dma_dev,
  		struct blk_dma_iter *iter, struct phys_vec *vec)
  {
-	iter->addr = dma_map_page(dma_dev, phys_to_page(vec->paddr),
-			offset_in_page(vec->paddr), vec->len, rq_dma_dir(req));
+	iter->addr = dma_map_phys(dma_dev, vec->paddr, vec->len,
+			rq_dma_dir(req), 0);
  	if (dma_mapping_error(dma_dev, iter->addr)) {
  		iter->status = BLK_STS_RESOURCE;
  		return false;