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From: Greg KH on 30 Mar 2010 19:30
2.6.33-stable review patch. If anyone has any objections, please let us know.

------------------

From: Zhu Yi <yi.zhu(a)intel.com>

[ Upstream commit 4045635318538d3ddd2007720412fdc4b08f6a62 ]

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 <yi.zhu(a)intel.com>
Signed-off-by: David S. Miller <davem(a)davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>

---
include/net/sock.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -589,7 +589,7 @@ static inline void __sk_add_backlog(stru
}

/* 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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