From: David S. Miller Date: Tue, 23 Sep 2008 08:29:23 +0000 (-0700) Subject: tcp: Fix order of tests in tcp_retransmit_skb() X-Git-Tag: v2.6.28-rc1~717^2~200 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=77d40a0952b16e020ce07c4cf9fb22024448275b;p=linux-2.6-omap-h63xx.git tcp: Fix order of tests in tcp_retransmit_skb() tcp_write_queue_next() must only be made if we know that tcp_skb_is_last() evaluates to false. Signed-off-by: David S. Miller --- diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index c3d58ee3e16..a8499ef3234 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1932,8 +1932,8 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb) /* Collapse two adjacent packets if worthwhile and we can. */ if (!(TCP_SKB_CB(skb)->flags & TCPCB_FLAG_SYN) && (skb->len < (cur_mss >> 1)) && - (tcp_write_queue_next(sk, skb) != tcp_send_head(sk)) && (!tcp_skb_is_last(sk, skb)) && + (tcp_write_queue_next(sk, skb) != tcp_send_head(sk)) && (skb_shinfo(skb)->nr_frags == 0 && skb_shinfo(tcp_write_queue_next(sk, skb))->nr_frags == 0) && (tcp_skb_pcount(skb) == 1 &&