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Subject[PATCH net-next 02/12] net: hns3: Add unlikely for buf_num check
Date
From: Peng Li <lipeng321@huawei.com>

This patch adds unlikely for buf_num check.

Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
---
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 052b7fb..837c6d6 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -1074,7 +1074,7 @@ static int hns3_nic_maybe_stop_tx(struct sk_buff **out_skb, int *bnum,
/* No. of segments (plus a header) */
buf_num = skb_shinfo(skb)->nr_frags + 1;

- if (buf_num > ring_space(ring))
+ if (unlikely(ring_space(ring) < buf_num))
return -EBUSY;

*bnum = buf_num;
--
2.7.4

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