inet: remove sk_listener parameter from syn_ack_timeout()

It is not needed, and req->sk_listener points to the listener anyway.
request_sock argument can be const.

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

3 files changed, 7 insertions, 5 deletions

diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 25a9615b3b88..1f7161e05403 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -576,7 +576,7 @@ static void dccp_v4_reqsk_destructor(struct request_sock *req)
         kfree(inet_rsk(req)->opt);
 }
 
-void dccp_syn_ack_timeout(struct sock *sk, struct request_sock *req)
+void dccp_syn_ack_timeout(const struct request_sock *req)
 {
 }
 EXPORT_SYMBOL(dccp_syn_ack_timeout);
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 7d011e825c48..a12b973164d0 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -615,7 +615,7 @@ static void reqsk_timer_handler(unsigned long data)
                 max_retries = defer_accept;
         syn_ack_recalc(req, thresh, max_retries, defer_accept,
                        &expire, &resend);
-        req->rsk_ops->syn_ack_timeout(sk_listener, req);
+        req->rsk_ops->syn_ack_timeout(req);
         if (!expire &&
             (!resend ||
              !inet_rtx_syn_ack(sk_listener, req) ||
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 3daa6b5d766d..2568fd282873 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -327,7 +327,7 @@ static void tcp_fastopen_synack_timer(struct sock *sk)
         struct request_sock *req;
 
         req = tcp_sk(sk)->fastopen_rsk;
-        req->rsk_ops->syn_ack_timeout(sk, req);
+        req->rsk_ops->syn_ack_timeout(req);
 
         if (req->num_timeout >= max_retries) {
                 tcp_write_err(sk);
@@ -539,9 +539,11 @@ static void tcp_write_timer(unsigned long data)
         sock_put(sk);
 }
 
-void tcp_syn_ack_timeout(struct sock *sk, struct request_sock *req)
+void tcp_syn_ack_timeout(const struct request_sock *req)
 {
-        NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPTIMEOUTS);
+        struct net *net = read_pnet(&inet_rsk(req)->ireq_net);
+
+        NET_INC_STATS_BH(net, LINUX_MIB_TCPTIMEOUTS);
 }
 EXPORT_SYMBOL(tcp_syn_ack_timeout);