From: Peng Li Date: Wed, 19 Sep 2018 17:29:48 +0000 (+0100) Subject: net: hns3: Add unlikely for buf_num check X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=932d1252aded755bfd6f53183ab6211f711c6435;p=linux.git net: hns3: Add unlikely for buf_num check This patch adds unlikely for buf_num check. Signed-off-by: Peng Li Signed-off-by: Salil Mehta Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 052b7fbf18036..837c6d62c29ff 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;