commit f0320c85346167246c4fd50e5cac453afb06c663
Author: Ryota Ozaki <ozaki-r@iij.ad.jp>
Date:   Wed Jul 30 10:20:58 2014 +0900

    Call etherinit when ether is required

diff --git a/sys/conf/files b/sys/conf/files
index 8e23b25..9dc61e9 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -1708,7 +1708,7 @@ file	net/bridgestp.c			bridge
 file	net/if_ecosubr.c		eco
 file	net/if_etherip.c		etherip			needs-flag
 file	net/if_ethersubr.c		ether | fddi | netatalk | token |
-					    wlan
+					    wlan		needs-flag
 file	net/if_faith.c			faith & (inet | inet6)	needs-flag
 file	net/if_fddisubr.c		fddi			needs-flag
 file	net/if_gif.c			gif			needs-flag
diff --git a/sys/net/if.c b/sys/net/if.c
index 8af331d..db54600 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -96,6 +96,7 @@ __KERNEL_RCSID(0, "$NetBSD: if.c,v 1.285 2014/07/01 10:16:02 ozaki-r Exp $");
 
 #include "opt_atalk.h"
 #include "opt_natm.h"
+#include "opt_wlan.h"
 
 #include <sys/param.h>
 #include <sys/mbuf.h>
@@ -139,6 +140,10 @@ __KERNEL_RCSID(0, "$NetBSD: if.c,v 1.285 2014/07/01 10:16:02 ozaki-r Exp $");
 #include <netinet6/nd6.h>
 #endif
 
+#include "ether.h"
+#include "fddi.h"
+#include "token.h"
+
 #include "carp.h"
 #if NCARP > 0
 #include <netinet/ip_carp.h>
@@ -261,7 +266,9 @@ ifinit1(void)
 	if_pfil = pfil_head_create(PFIL_TYPE_IFNET, NULL);
 	KASSERT(if_pfil != NULL);
 
+#if NETHER > 0 || NFDDI > 0 || defined(NETATALK) || NTOKEN > 0 || defined(WLAN)
 	etherinit();
+#endif
 }
 
 ifnet_t *
diff --git a/sys/rump/net/lib/libnetinet/opt/ether.h b/sys/rump/net/lib/libnetinet/opt/ether.h
new file mode 100644
index 0000000..9efaf37
--- /dev/null
+++ b/sys/rump/net/lib/libnetinet/opt/ether.h
@@ -0,0 +1,3 @@
+/*	$NetBSD$	*/
+
+/* dummy */
diff --git a/sys/rump/net/lib/libnetinet/opt/opt_wlan.h b/sys/rump/net/lib/libnetinet/opt/opt_wlan.h
new file mode 100644
index 0000000..9efaf37
--- /dev/null
+++ b/sys/rump/net/lib/libnetinet/opt/opt_wlan.h
@@ -0,0 +1,3 @@
+/*	$NetBSD$	*/
+
+/* dummy */