From: Eric Dumazet <edumazet@google.com>
Date: Wed, 8 Jun 2022 16:04:31 +0000 (-0700)
Subject: net: use DEBUG_NET_WARN_ON_ONCE() in __release_sock()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=63fbdd3c77ec216a91a87d22821d2ecd96669a5d;p=linux.git

net: use DEBUG_NET_WARN_ON_ONCE() in __release_sock()

Check against skb dst in socket backlog has never triggered
in past years.

Keep the check omly for CONFIG_DEBUG_NET=y builds.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/net/core/sock.c b/net/core/sock.c
index 2ff40dd0a7a65..f5062d9e12227 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2844,7 +2844,7 @@ void __release_sock(struct sock *sk)
 		do {
 			next = skb->next;
 			prefetch(next);
-			WARN_ON_ONCE(skb_dst_is_noref(skb));
+			DEBUG_NET_WARN_ON_ONCE(skb_dst_is_noref(skb));
 			skb_mark_not_on_list(skb);
 			sk_backlog_rcv(sk, skb);