2 files changed, 13 insertions, 11 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 1b94b9bfe2dc..646dbe3962ea 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -41,6 +41,7 @@
 #include <net/ip.h>
 #include <net/tcp_states.h>
 #include <net/inet_ecn.h>
+#include <net/dst.h>
 
 #include <linux/seq_file.h>
 
@@ -530,6 +531,17 @@ static inline void tcp_fast_path_check(struct sock *sk)
                 tcp_fast_path_on(tp);
 }
 
+/* Compute the actual rto_min value */
+static inline u32 tcp_rto_min(struct sock *sk)
+{
+        struct dst_entry *dst = __sk_dst_get(sk);
+        u32 rto_min = TCP_RTO_MIN;
+
+        if (dst && dst_metric_locked(dst, RTAX_RTO_MIN))
+                rto_min = dst_metric_rtt(dst, RTAX_RTO_MIN);
+        return rto_min;
+}
+
 /* Compute the actual receive window we are currently advertising.
  * Rcv_nxt can be after the window if our peer push more data
  * than the offered window.
@@ -895,7 +907,7 @@ static inline int tcp_prequeue(struct sock *sk, struct sk_buff *skb)
                         wake_up_interruptible(sk->sk_sleep);
                         if (!inet_csk_ack_scheduled(sk))
                                 inet_csk_reset_xmit_timer(sk, ICSK_TIME_DACK,
-                                                          (3 * TCP_RTO_MIN) / 4,
+                                                          (3 * tcp_rto_min(sk)) / 4,
                                                           TCP_RTO_MAX);
                 }
                 return 1;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c96a6bb25430..eec3e6f9956c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -597,16 +597,6 @@ static void tcp_event_data_recv(struct sock *sk, struct sk_buff *skb)
                 tcp_grow_window(sk, skb);
 }
 
-static u32 tcp_rto_min(struct sock *sk)
-{
-        struct dst_entry *dst = __sk_dst_get(sk);
-        u32 rto_min = TCP_RTO_MIN;
-
-        if (dst && dst_metric_locked(dst, RTAX_RTO_MIN))
-                rto_min = dst_metric_rtt(dst, RTAX_RTO_MIN);
-        return rto_min;
-}
-
 /* Called to compute a smoothed rtt estimate. The data fed to this
  * routine either comes from timestamps, or from segments that were
  * known _not_ to have been retransmitted [see Karn/Partridge