Index: sys/dev/cxgbe/tom/t4_tom.c
===================================================================
--- sys/dev/cxgbe/tom/t4_tom.c
+++ sys/dev/cxgbe/tom/t4_tom.c
@@ -59,6 +59,7 @@
 #include <netinet6/scope6_var.h>
 #define TCPSTATES
 #include <netinet/tcp_fsm.h>
+#include <netinet/tcp_timer.h>
 #include <netinet/tcp_var.h>
 #include <netinet/toecore.h>
 
@@ -553,8 +554,6 @@
 	return (wscale);
 }
 
-extern int always_keepalive;
-
 /*
  * socket so could be a listening socket too.
  */
@@ -573,7 +572,7 @@
 	if (so != NULL) {
 		struct inpcb *inp = sotoinpcb(so);
 		struct tcpcb *tp = intotcpcb(inp);
-		int keepalive = always_keepalive ||
+		int keepalive = tcp_always_keepalive ||
 		    so_options_get(so) & SO_KEEPALIVE;
 
 		opt0 |= V_NAGLE((tp->t_flags & TF_NODELAY) == 0);
Index: sys/netinet/tcp_timer.h
===================================================================
--- sys/netinet/tcp_timer.h
+++ sys/netinet/tcp_timer.h
@@ -197,6 +197,7 @@
 extern int tcp_backoff[];
 extern int tcp_syn_backoff[];
 
+extern int tcp_always_keepalive;
 extern int tcp_finwait2_timeout;
 extern int tcp_fast_finwait2_recycle;
 
Index: sys/netinet/tcp_timer.c
===================================================================
--- sys/netinet/tcp_timer.c
+++ sys/netinet/tcp_timer.c
@@ -118,9 +118,9 @@
     &tcp_rexmit_slop, 0, sysctl_msec_to_ticks, "I",
     "Retransmission Timer Slop");
 
-static int	always_keepalive = 1;
+int	tcp_always_keepalive = 1;
 SYSCTL_INT(_net_inet_tcp, OID_AUTO, always_keepalive, CTLFLAG_RW,
-    &always_keepalive , 0, "Assume SO_KEEPALIVE on all TCP connections");
+    &tcp_always_keepalive , 0, "Assume SO_KEEPALIVE on all TCP connections");
 
 int    tcp_fast_finwait2_recycle = 0;
 SYSCTL_INT(_net_inet_tcp, OID_AUTO, fast_finwait2_recycle, CTLFLAG_RW, 
@@ -471,7 +471,8 @@
 	TCPSTAT_INC(tcps_keeptimeo);
 	if (tp->t_state < TCPS_ESTABLISHED)
 		goto dropit;
-	if ((always_keepalive || inp->inp_socket->so_options & SO_KEEPALIVE) &&
+	if ((tcp_always_keepalive ||
+	    inp->inp_socket->so_options & SO_KEEPALIVE) &&
 	    tp->t_state <= TCPS_CLOSING) {
 		if (ticks - tp->t_rcvtime >= TP_KEEPIDLE(tp) + TP_MAXIDLE(tp))
 			goto dropit;