tcp: remove unused parameter of tcp_sacktag_bsearch()

parameter state in the tcp_sacktag_bsearch() is not used.
So, it can be removed.

Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 7a027de..6ac2742 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1574,9 +1574,7 @@ static struct sk_buff *tcp_sacktag_walk(struct sk_buff *skb, struct sock *sk,
        return skb;
 }
 
-static struct sk_buff *tcp_sacktag_bsearch(struct sock *sk,
-                                          struct tcp_sacktag_state *state,
-                                          u32 seq)
+static struct sk_buff *tcp_sacktag_bsearch(struct sock *sk, u32 seq)
 {
        struct rb_node *parent, **p = &sk->tcp_rtx_queue.rb_node;
        struct sk_buff *skb;
@@ -1598,13 +1596,12 @@ static struct sk_buff *tcp_sacktag_bsearch(struct sock *sk,
 }
 
 static struct sk_buff *tcp_sacktag_skip(struct sk_buff *skb, struct sock *sk,
-                                       struct tcp_sacktag_state *state,
                                        u32 skip_to_seq)
 {
        if (skb && after(TCP_SKB_CB(skb)->seq, skip_to_seq))
                return skb;
 
-       return tcp_sacktag_bsearch(sk, state, skip_to_seq);
+       return tcp_sacktag_bsearch(sk, skip_to_seq);
 }
 
 static struct sk_buff *tcp_maybe_skipping_dsack(struct sk_buff *skb,
@@ -1617,7 +1614,7 @@ static struct sk_buff *tcp_maybe_skipping_dsack(struct sk_buff *skb,
                return skb;
 
        if (before(next_dup->start_seq, skip_to_seq)) {
-               skb = tcp_sacktag_skip(skb, sk, state, next_dup->start_seq);
+               skb = tcp_sacktag_skip(skb, sk, next_dup->start_seq);
                skb = tcp_sacktag_walk(skb, sk, NULL, state,
                                       next_dup->start_seq, next_dup->end_seq,
                                       1);
@@ -1758,8 +1755,7 @@ tcp_sacktag_write_queue(struct sock *sk, const struct sk_buff *ack_skb,
 
                        /* Head todo? */
                        if (before(start_seq, cache->start_seq)) {
-                               skb = tcp_sacktag_skip(skb, sk, state,
-                                                      start_seq);
+                               skb = tcp_sacktag_skip(skb, sk, start_seq);
                                skb = tcp_sacktag_walk(skb, sk, next_dup,
                                                       state,
                                                       start_seq,
@@ -1785,7 +1781,7 @@ tcp_sacktag_write_queue(struct sock *sk, const struct sk_buff *ack_skb,
                                goto walk;
                        }
 
-                       skb = tcp_sacktag_skip(skb, sk, state, cache->end_seq);
+                       skb = tcp_sacktag_skip(skb, sk, cache->end_seq);
                        /* Check overlap against next cached too (past this one already) */
                        cache++;
                        continue;
@@ -1796,7 +1792,7 @@ tcp_sacktag_write_queue(struct sock *sk, const struct sk_buff *ack_skb,
                        if (!skb)
                                break;
                }
-               skb = tcp_sacktag_skip(skb, sk, state, start_seq);
+               skb = tcp_sacktag_skip(skb, sk, start_seq);
 
 walk:
                skb = tcp_sacktag_walk(skb, sk, next_dup, state,