tcp: move tcp_openreq_init() to tcp_input.c

This big helper is called once from tcp_conn_request(), there is no
point having it in an include. Compiler will inline it anyway.

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

1 files changed, 25 insertions, 0 deletions

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 717d437b6ce1..10d6bd93f229 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5912,6 +5912,31 @@ static void tcp_ecn_create_request(struct request_sock *req,
                 inet_rsk(req)->ecn_ok = 1;
 }
 
+static void tcp_openreq_init(struct request_sock *req,
+                             const struct tcp_options_received *rx_opt,
+                             struct sk_buff *skb, const struct sock *sk)
+{
+        struct inet_request_sock *ireq = inet_rsk(req);
+
+        req->rcv_wnd = 0;               /* So that tcp_send_synack() knows! */
+        req->cookie_ts = 0;
+        tcp_rsk(req)->rcv_isn = TCP_SKB_CB(skb)->seq;
+        tcp_rsk(req)->rcv_nxt = TCP_SKB_CB(skb)->seq + 1;
+        tcp_rsk(req)->snt_synack = tcp_time_stamp;
+        tcp_rsk(req)->last_oow_ack_time = 0;
+        req->mss = rx_opt->mss_clamp;
+        req->ts_recent = rx_opt->saw_tstamp ? rx_opt->rcv_tsval : 0;
+        ireq->tstamp_ok = rx_opt->tstamp_ok;
+        ireq->sack_ok = rx_opt->sack_ok;
+        ireq->snd_wscale = rx_opt->snd_wscale;
+        ireq->wscale_ok = rx_opt->wscale_ok;
+        ireq->acked = 0;
+        ireq->ecn_ok = 0;
+        ireq->ir_rmt_port = tcp_hdr(skb)->source;
+        ireq->ir_num = ntohs(tcp_hdr(skb)->dest);
+        ireq->ir_mark = inet_request_mark(sk, skb);
+}
+
 int tcp_conn_request(struct request_sock_ops *rsk_ops,
                      const struct tcp_request_sock_ops *af_ops,
                      struct sock *sk, struct sk_buff *skb)