[PATCH net-next 08/12] net: hns3: Add unlikely for dma_mapping_error check

[Salil Mehta]

From: Jian Shen <shenjian15@xxxxxxxxxx>

For dma_mapping_error is unlikely happened, this patch adds unlikely for
dma_mapping_error check.

Signed-off-by: Jian Shen <shenjian15@xxxxxxxxxx>
Signed-off-by: Peng Li <lipeng321@xxxxxxxxxx>
Signed-off-by: Salil Mehta <salil.mehta@xxxxxxxxxx>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 73b42d3..8b63707 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1807,7 +1807,7 @@ static int hns3_map_buffer(struct hns3_enet_ring *ring, struct hns3_desc_cb *cb)
 	cb->dma = dma_map_page(ring_to_dev(ring), cb->priv, 0,
 			       cb->length, ring_to_dma_dir(ring));
 
-	if (dma_mapping_error(ring_to_dev(ring), cb->dma))
+	if (unlikely(dma_mapping_error(ring_to_dev(ring), cb->dma)))
 		return -EIO;
 
 	return 0;
-- 
2.7.4