From mboxrd@z Thu Jan 1 00:00:00 1970 From: Salil Mehta Subject: [PATCH net-next 08/12] net: hns3: Add unlikely for dma_mapping_error check Date: Fri, 21 Sep 2018 16:41:44 +0100 Message-ID: <20180921154148.26756-9-salil.mehta@huawei.com> References: <20180921154148.26756-1-salil.mehta@huawei.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , , , , , Jian Shen To: Return-path: In-Reply-To: <20180921154148.26756-1-salil.mehta@huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Jian Shen For dma_mapping_error is unlikely happened, this patch adds unlikely for dma_mapping_error check. Signed-off-by: Jian Shen Signed-off-by: Peng Li Signed-off-by: Salil Mehta --- 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