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Date:	Mon,  8 Mar 2010 10:21:39 +0800
From:	Zhu Yi <>
Cc:, Zhu Yi <>
Subject: [PATCH] net: add __must_check to sk_add_backlog

Add the "__must_check" tag to sk_add_backlog() so that any failure to
check and drop packets will be warned about.

Signed-off-by: Zhu Yi <>
 include/net/sock.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index 170353d..092b055 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -604,7 +604,7 @@ static inline void __sk_add_backlog(struct sock *sk, struct sk_buff *skb)
 /* The per-socket spinlock must be held here. */
-static inline int sk_add_backlog(struct sock *sk, struct sk_buff *skb)
+static inline __must_check int sk_add_backlog(struct sock *sk, struct sk_buff *skb)
 	if (sk->sk_backlog.len >= max(sk->sk_backlog.limit, sk->sk_rcvbuf << 1))
 		return -ENOBUFS;

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