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 2ff40dd..f5062d9 100644 (file)
--- 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);