diff --git a/sys/net/if.c b/sys/net/if.c
index 3090fc697f3d..130ca14235ad 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: if.c,v 1.495 2021/09/30 03:43:25 yamaguchi Exp $	*/
+/*	$NetBSD: if.c,v 1.496 2021/09/30 03:51:05 yamaguchi Exp $	*/
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2008 The NetBSD Foundation, Inc.
@@ -90,7 +90,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.495 2021/09/30 03:43:25 yamaguchi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if.c,v 1.496 2021/09/30 03:51:05 yamaguchi Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_inet.h"
@@ -1199,8 +1199,6 @@ if_deactivate(struct ifnet *ifp)
 	ifp->if_slowtimo = if_nullslowtimo;
 	ifp->if_drain	 = if_nulldrain;
 
-	ifp->if_link_state_changed = NULL;
-
 	/* No more packets may be enqueued. */
 	ifp->if_snd.ifq_maxlen = 0;
 
@@ -2397,9 +2395,6 @@ if_link_state_change_process(struct ifnet *ifp, int link_state)
 	/* Notify that the link state has changed. */
 	rt_ifmsg(ifp);
 
-	if (ifp->if_link_state_changed != NULL)
-		ifp->if_link_state_changed(ifp, link_state);
-
 	simplehook_dohooks(ifp->if_linkstate_hooks);
 
 	DOMAIN_FOREACH(dp) {
diff --git a/sys/net/if.h b/sys/net/if.h
index ecbd46614ce6..00cfaf3aca23 100644
--- a/sys/net/if.h
+++ b/sys/net/if.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: if.h,v 1.294 2021/09/30 03:23:48 yamaguchi Exp $	*/
+/*	$NetBSD: if.h,v 1.295 2021/09/30 03:51:05 yamaguchi Exp $	*/
 
 /*-
  * Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
@@ -420,7 +420,6 @@ typedef struct ifnet {
 	uint16_t	if_link_queue;	/* q: masked link state change queue */
 					/* q: is link state work scheduled? */
 	bool		if_link_scheduled;
-	void		(*if_link_state_changed)(struct ifnet *, int);
 	struct pslist_entry
 			if_pslist_entry;/* i: */
 	struct psref_target
diff --git a/sys/net/if_ethersubr.c b/sys/net/if_ethersubr.c
index 186f3f2e3cae..a80af958631f 100644
--- a/sys/net/if_ethersubr.c
+++ b/sys/net/if_ethersubr.c
@@ -1,4 +1,4 @@
-/*	$NetBSD: if_ethersubr.c,v 1.295 2021/09/30 03:47:27 yamaguchi Exp $	*/
+/*	$NetBSD: if_ethersubr.c,v 1.296 2021/09/30 03:51:05 yamaguchi Exp $	*/
 
 /*
  * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
@@ -61,7 +61,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_ethersubr.c,v 1.295 2021/09/30 03:47:27 yamaguchi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_ethersubr.c,v 1.296 2021/09/30 03:51:05 yamaguchi Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_inet.h"
@@ -1005,12 +1005,6 @@ ether_snprintf(char *buf, size_t len, const u_char *ap)
 	return buf;
 }
 
-static void
-ether_link_state_changed(struct ifnet *ifp, int link_state)
-{
-
-}
-
 /*
  * Perform common duties while attaching to interface list
  */
@@ -1025,7 +1019,6 @@ ether_ifattach(struct ifnet *ifp, const uint8_t *lla)
 	ifp->if_mtu = ETHERMTU;
 	ifp->if_output = ether_output;
 	ifp->_if_input = ether_input;
-	ifp->if_link_state_changed = ether_link_state_changed;
 	if (ifp->if_baudrate == 0)
 		ifp->if_baudrate = IF_Mbps(10);		/* just a default */