*
  *     If we are in FINWAIT-2, a received FIN moves us to TIME-WAIT.
  */
-static void tcp_fin(struct sk_buff *skb, struct sock *sk, struct tcphdr *th)
+static void tcp_fin(struct sock *sk)
 {
        struct tcp_sock *tp = tcp_sk(sk);
 
                __skb_queue_tail(&sk->sk_receive_queue, skb);
                tp->rcv_nxt = TCP_SKB_CB(skb)->end_seq;
                if (tcp_hdr(skb)->fin)
-                       tcp_fin(skb, sk, tcp_hdr(skb));
+                       tcp_fin(sk);
        }
 }
 
                if (skb->len)
                        tcp_event_data_recv(sk, skb);
                if (th->fin)
-                       tcp_fin(skb, sk, th);
+                       tcp_fin(sk);
 
                if (!skb_queue_empty(&tp->out_of_order_queue)) {
                        tcp_ofo_queue(sk);