2 files changed, 14 insertions, 13 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 5c472f255b77..572a77bb6907 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -341,6 +341,7 @@ extern struct sock *		tcp_check_req(struct sock *sk,struct sk_buff *skb,
 extern int                      tcp_child_process(struct sock *parent,
                                                   struct sock *child,
                                                   struct sk_buff *skb);
+extern int                      tcp_use_frto(const struct sock *sk);
 extern void                     tcp_enter_frto(struct sock *sk);
 extern void                     tcp_enter_loss(struct sock *sk, int how);
 extern void                     tcp_clear_retrans(struct tcp_sock *tp);
@@ -1033,19 +1034,6 @@ static inline int tcp_paws_check(const struct tcp_options_received *rx_opt, int
 
 #define TCP_CHECK_TIMER(sk) do { } while (0)
 
-static inline int tcp_use_frto(const struct sock *sk)
-{
-        const struct tcp_sock *tp = tcp_sk(sk);
-        
-        /* F-RTO must be activated in sysctl and there must be some
-         * unsent new data, and the advertised window should allow
-         * sending it.
-         */
-        return (sysctl_tcp_frto && sk->sk_send_head &&
-                !after(TCP_SKB_CB(sk->sk_send_head)->end_seq,
-                       tp->snd_una + tp->snd_wnd));
-}
-
 static inline void tcp_mib_init(void)
 {
         /* See RFC 2012 */
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c5be3d0465f5..fe96e176d85a 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1236,6 +1236,19 @@ tcp_sacktag_write_queue(struct sock *sk, struct sk_buff *ack_skb, u32 prior_snd_
         return flag;
 }
 
+int tcp_use_frto(const struct sock *sk)
+{
+        const struct tcp_sock *tp = tcp_sk(sk);
+
+        /* F-RTO must be activated in sysctl and there must be some
+         * unsent new data, and the advertised window should allow
+         * sending it.
+         */
+        return (sysctl_tcp_frto && sk->sk_send_head &&
+                !after(TCP_SKB_CB(sk->sk_send_head)->end_seq,
+                       tp->snd_una + tp->snd_wnd));
+}
+
 /* RTO occurred, but do not yet enter loss state. Instead, transmit two new
  * segments to see from the next ACKs whether any data was really missing.
  * If the RTO was spurious, new ACKs should arrive.