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authorYunsheng Lin <linyunsheng@huawei.com>2020-09-19 10:24:47 +0800
committerDavid S. Miller <davem@davemloft.net>2020-09-20 14:17:20 -0700
commit1f14bd99e6d393f55ca5f62dcf7bed0152ec4db6 (patch)
tree08d23bd43e755327b3aa876c7509ebe58da507f5
parent5273144116d10f66c206a068266584cc60a526ac (diff)
net: remove unnecessary NULL checking in napi_consume_skb()
When budget is non-zero, skb_unref() has already handled the NULL checking. When budget is zero, the dev_consume_skb_any() has handled NULL checking in __dev_kfree_skb_irq(), or dev_kfree_skb() which also ultimately call skb_unref(). So remove the unnecessary checking in napi_consume_skb(). Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/core/skbuff.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index bfd748346f20..e0774471f56d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -895,9 +895,6 @@ void __kfree_skb_defer(struct sk_buff *skb)
void napi_consume_skb(struct sk_buff *skb, int budget)
{
- if (unlikely(!skb))
- return;
-
/* Zero budget indicate non-NAPI context called us, like netpoll */
if (unlikely(!budget)) {
dev_consume_skb_any(skb);