diff --git a/sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c b/sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c
--- a/sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c
+++ b/sys/netpfil/ipfilter/netinet/ip_fil_freebsd.c
@@ -172,18 +172,15 @@
 	SPL_INT(s);
 
 	SPL_NET(s);
-	READ_ENTER(&softc->ipf_global);
 
 	if (softc->ipf_running > 0)
 		ipf_slowtimer(softc);
 
 	if (softc->ipf_running == -1 || softc->ipf_running == 1) {
-		callout_init_rw(&softc->ipf_slow_ch, &softc->ipf_global.ipf_lk, CALLOUT_SHAREDLOCK);
 		callout_reset(&softc->ipf_slow_ch,
 			(hz / IPF_HZ_DIVIDE) * IPF_HZ_MULT,
 			ipf_timer_func, softc);
 	}
-	RWLOCK_EXIT(&softc->ipf_global);
 	SPL_X(s);
 }