tcp_match_skb_to_sack() can become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
  * which may fail and creates some hassle (caller must handle error case
  * returns).
  */
-int tcp_match_skb_to_sack(struct sock *sk, struct sk_buff *skb,
-                         u32 start_seq, u32 end_seq)
+static int tcp_match_skb_to_sack(struct sock *sk, struct sk_buff *skb,
+                                u32 start_seq, u32 end_seq)
 {
        int in_sack, err;
        unsigned int pkt_len;