tcp: drop unnecessary local var in collapse

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 77af7fa..61445b5 100644 (file)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1767,11 +1767,9 @@ static void tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
        struct tcp_sock *tp = tcp_sk(sk);
        struct sk_buff *next_skb = tcp_write_queue_next(sk, skb);
        int skb_size, next_skb_size;
-       u16 flags;
 
        skb_size = skb->len;
        next_skb_size = next_skb->len;
-       flags = TCP_SKB_CB(skb)->flags;
 
        BUG_ON(tcp_skb_pcount(skb) != 1 || tcp_skb_pcount(next_skb) != 1);
 
@@ -1791,9 +1789,8 @@ static void tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
        /* Update sequence range on original skb. */
        TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(next_skb)->end_seq;
 
-       /* Merge over control information. */
-       flags |= TCP_SKB_CB(next_skb)->flags; /* This moves PSH/FIN etc. over */
-       TCP_SKB_CB(skb)->flags = flags;
+       /* Merge over control information. This moves PSH/FIN etc. over */
+       TCP_SKB_CB(skb)->flags |= TCP_SKB_CB(next_skb)->flags;
 
        /* All done, get rid of second SKB and account for it so
         * packet counting does not break.