diff --git a/sys/net/bpf.c b/sys/net/bpf.c
index 1381b06a634d..1678d1198068 100644
--- a/sys/net/bpf.c
+++ b/sys/net/bpf.c
@@ -356,7 +356,7 @@ bpfopen(dev, flags, fmt, td)
 	mac_create_bpfdesc(td->td_ucred, d);
 #endif
 	mtx_init(&d->bd_mtx, devtoname(dev), "bpf cdev lock", MTX_DEF);
-	callout_init(&d->bd_callout, debug_mpsafenet ? CALLOUT_MPSAFE : 0);
+	callout_init(&d->bd_callout, NET_CALLOUT_MPSAFE);
 	knlist_init(&d->bd_sel.si_note, &d->bd_mtx);
 
 	return (0);
diff --git a/sys/net/bridge.c b/sys/net/bridge.c
index 63dfb36a31ce..2461088de763 100644
--- a/sys/net/bridge.c
+++ b/sys/net/bridge.c
@@ -1220,7 +1220,7 @@ bdginit(void)
 
     bdgtakeifaces_ptr();		/* XXX does this do anything? */
 
-    callout_init(&bdg_callout, debug_mpsafenet ? CALLOUT_MPSAFE : 0);
+    callout_init(&bdg_callout, NET_CALLOUT_MPSAFE);
     bdg_timeout(0);
     return 0 ;
 }
diff --git a/sys/netinet/ip_dummynet.c b/sys/netinet/ip_dummynet.c
index fea5981d5591..3adbc69ee122 100644
--- a/sys/netinet/ip_dummynet.c
+++ b/sys/netinet/ip_dummynet.c
@@ -2034,7 +2034,7 @@ ip_dn_init(void)
     ip_dn_io_ptr = dummynet_io;
     ip_dn_ruledel_ptr = dn_rule_delete;
 
-    callout_init(&dn_timeout, debug_mpsafenet ? CALLOUT_MPSAFE : 0);
+    callout_init(&dn_timeout, NET_CALLOUT_MPSAFE);
     callout_reset(&dn_timeout, 1, dummynet, NULL);
 }
 
diff --git a/sys/netinet/ip_fw2.c b/sys/netinet/ip_fw2.c
index 9752fa659b1e..a72a63049ffc 100644
--- a/sys/netinet/ip_fw2.c
+++ b/sys/netinet/ip_fw2.c
@@ -3534,7 +3534,7 @@ ipfw_init(void)
 	    sizeof(ipfw_dyn_rule), NULL, NULL, NULL, NULL,
 	    UMA_ALIGN_PTR, 0);
 	IPFW_DYN_LOCK_INIT();
-	callout_init(&ipfw_timeout, debug_mpsafenet ? CALLOUT_MPSAFE : 0);
+	callout_init(&ipfw_timeout, NET_CALLOUT_MPSAFE);
 
 	bzero(&default_rule, sizeof default_rule);
 
diff --git a/sys/netinet/ip_mroute.c b/sys/netinet/ip_mroute.c
index 0df480754bad..00c0a6c19b85 100644
--- a/sys/netinet/ip_mroute.c
+++ b/sys/netinet/ip_mroute.c
@@ -598,23 +598,20 @@ get_vif_cnt(struct sioc_vif_req *req)
 static void
 ip_mrouter_reset(void)
 {
-    int callout_flag;
-
     bzero((caddr_t)mfctable, sizeof(mfctable));
     bzero((caddr_t)nexpire, sizeof(nexpire));
 
     pim_assert = 0;
     mrt_api_config = 0;
 
-    callout_flag = debug_mpsafenet ? CALLOUT_MPSAFE : 0;
-    callout_init(&expire_upcalls_ch, callout_flag);
+    callout_init(&expire_upcalls_ch, NET_CALLOUT_MPSAFE);
 
     bw_upcalls_n = 0;
     bzero((caddr_t)bw_meter_timers, sizeof(bw_meter_timers));
-    callout_init(&bw_upcalls_ch, callout_flag);
-    callout_init(&bw_meter_ch, callout_flag);
+    callout_init(&bw_upcalls_ch, NET_CALLOUT_MPSAFE);
+    callout_init(&bw_meter_ch, NET_CALLOUT_MPSAFE);
 
-    callout_init(&tbf_reprocess_ch, callout_flag);
+    callout_init(&tbf_reprocess_ch, NET_CALLOUT_MPSAFE);
 }
 
 static struct mtx mrouter_mtx;		/* used to synch init/done work */
diff --git a/sys/netinet/tcp_subr.c b/sys/netinet/tcp_subr.c
index fa4489b575c6..ed5eab35ad27 100644
--- a/sys/netinet/tcp_subr.c
+++ b/sys/netinet/tcp_subr.c
@@ -582,7 +582,6 @@ tcp_newtcpcb(inp)
 #ifdef INET6
 	int isipv6 = (inp->inp_vflag & INP_IPV6) != 0;
 #endif /* INET6 */
-	int callout_flag;
 
 	tm = uma_zalloc(tcpcb_zone, M_NOWAIT | M_ZERO);
 	if (tm == NULL)
@@ -596,12 +595,11 @@ tcp_newtcpcb(inp)
 		tcp_mssdflt;
 
 	/* Set up our timeouts. */
-	callout_flag = debug_mpsafenet ? CALLOUT_MPSAFE : 0;
-	callout_init(tp->tt_rexmt = &tm->tcpcb_mem_rexmt, callout_flag);
-	callout_init(tp->tt_persist = &tm->tcpcb_mem_persist, callout_flag);
-	callout_init(tp->tt_keep = &tm->tcpcb_mem_keep, callout_flag);
-	callout_init(tp->tt_2msl = &tm->tcpcb_mem_2msl, callout_flag);
-	callout_init(tp->tt_delack = &tm->tcpcb_mem_delack, callout_flag);
+	callout_init(tp->tt_rexmt = &tm->tcpcb_mem_rexmt, NET_CALLOUT_MPSAFE);
+	callout_init(tp->tt_persist = &tm->tcpcb_mem_persist, NET_CALLOUT_MPSAFE);
+	callout_init(tp->tt_keep = &tm->tcpcb_mem_keep, NET_CALLOUT_MPSAFE);
+	callout_init(tp->tt_2msl = &tm->tcpcb_mem_2msl, NET_CALLOUT_MPSAFE);
+	callout_init(tp->tt_delack = &tm->tcpcb_mem_delack, NET_CALLOUT_MPSAFE);
 
 	if (tcp_do_rfc1323)
 		tp->t_flags = (TF_REQ_SCALE|TF_REQ_TSTMP);
diff --git a/sys/netinet/tcp_syncache.c b/sys/netinet/tcp_syncache.c
index 8a95a4fe61cb..b95efb66c20a 100644
--- a/sys/netinet/tcp_syncache.c
+++ b/sys/netinet/tcp_syncache.c
@@ -245,8 +245,7 @@ syncache_init(void)
 	/* Initialize the timer queues. */
 	for (i = 0; i <= SYNCACHE_MAXREXMTS; i++) {
 		TAILQ_INIT(&tcp_syncache.timerq[i]);
-		callout_init(&tcp_syncache.tt_timerq[i],
-			debug_mpsafenet ? CALLOUT_MPSAFE : 0);
+		callout_init(&tcp_syncache.tt_timerq[i], NET_CALLOUT_MPSAFE);
 	}
 
 	/*
diff --git a/sys/netinet/tcp_timewait.c b/sys/netinet/tcp_timewait.c
index fa4489b575c6..ed5eab35ad27 100644
--- a/sys/netinet/tcp_timewait.c
+++ b/sys/netinet/tcp_timewait.c
@@ -582,7 +582,6 @@ tcp_newtcpcb(inp)
 #ifdef INET6
 	int isipv6 = (inp->inp_vflag & INP_IPV6) != 0;
 #endif /* INET6 */
-	int callout_flag;
 
 	tm = uma_zalloc(tcpcb_zone, M_NOWAIT | M_ZERO);
 	if (tm == NULL)
@@ -596,12 +595,11 @@ tcp_newtcpcb(inp)
 		tcp_mssdflt;
 
 	/* Set up our timeouts. */
-	callout_flag = debug_mpsafenet ? CALLOUT_MPSAFE : 0;
-	callout_init(tp->tt_rexmt = &tm->tcpcb_mem_rexmt, callout_flag);
-	callout_init(tp->tt_persist = &tm->tcpcb_mem_persist, callout_flag);
-	callout_init(tp->tt_keep = &tm->tcpcb_mem_keep, callout_flag);
-	callout_init(tp->tt_2msl = &tm->tcpcb_mem_2msl, callout_flag);
-	callout_init(tp->tt_delack = &tm->tcpcb_mem_delack, callout_flag);
+	callout_init(tp->tt_rexmt = &tm->tcpcb_mem_rexmt, NET_CALLOUT_MPSAFE);
+	callout_init(tp->tt_persist = &tm->tcpcb_mem_persist, NET_CALLOUT_MPSAFE);
+	callout_init(tp->tt_keep = &tm->tcpcb_mem_keep, NET_CALLOUT_MPSAFE);
+	callout_init(tp->tt_2msl = &tm->tcpcb_mem_2msl, NET_CALLOUT_MPSAFE);
+	callout_init(tp->tt_delack = &tm->tcpcb_mem_delack, NET_CALLOUT_MPSAFE);
 
 	if (tcp_do_rfc1323)
 		tp->t_flags = (TF_REQ_SCALE|TF_REQ_TSTMP);