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| author | Peng Li <lipeng321@huawei.com> | 2018-09-19 19:29:48 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-09-20 06:20:22 +0200 |
| commit | 932d1252aded755bfd6f53183ab6211f711c6435 (patch) | |
| tree | 2f8de9dc64ca05932079ac9194bd11a07309d0d5 | |
| parent | net: hns3: Add default irq affinity (diff) | |
| download | linux-932d1252aded755bfd6f53183ab6211f711c6435.tar.xz linux-932d1252aded755bfd6f53183ab6211f711c6435.zip | |
net: hns3: Add unlikely for buf_num check
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 052b7fbf1803..837c6d62c29f 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; |