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udp: Use WARN_ON_ONCE() in udp_read_skb()

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Prevent udp_read_skb() from flooding the syslog.

Suggested-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Peilin Ye <peilin.ye@bytedance.com>
Link: https://lore.kernel.org/r/20220921005915.2697-1-yepeilin.cs@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Peilin Ye 2022-09-20 17:59:15 -07:00 committed by Jakub Kicinski
parent c5da4b68d2
commit db39dfdc1c
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/udp.c
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@ -1821,7 +1821,7 @@ int udp_read_skb(struct sock *sk, skb_read_actor_t recv_actor)
continue;
}
WARN_ON(!skb_set_owner_sk_safe(skb, sk));
WARN_ON_ONCE(!skb_set_owner_sk_safe(skb, sk));
used = recv_actor(sk, skb);
if (used <= 0) {
if (!copied)