Index: sys/compat/linuxkpi/common/include/linux/netdevice.h
===================================================================
--- sys/compat/linuxkpi/common/include/linux/netdevice.h
+++ sys/compat/linuxkpi/common/include/linux/netdevice.h
@@ -59,6 +59,7 @@
 /* According to linux::ipoib_main.c. */
 struct netdev_notifier_info {
 	struct net_device	*dev;
+	struct ifnet		*ifp;
 };
 
 static inline struct net_device *
@@ -67,6 +68,12 @@
 	return (ni->dev);
 }
 
+static inline struct ifnet *
+netdev_notifier_info_to_ifp(struct netdev_notifier_info *ni)
+{
+	return (ni->ifp);
+}
+
 int	register_netdevice_notifier(struct notifier_block *);
 int	register_inetaddr_notifier(struct notifier_block *);
 int	unregister_netdevice_notifier(struct notifier_block *);
Index: sys/compat/linuxkpi/common/src/linux_compat.c
===================================================================
--- sys/compat/linuxkpi/common/src/linux_compat.c
+++ sys/compat/linuxkpi/common/src/linux_compat.c
@@ -2315,6 +2315,7 @@
 	struct netdev_notifier_info ni;
 
 	nb = arg;
+	ni.ifp = ifp;
 	ni.dev = (struct net_device *)ifp;
 	if (linkstate == LINK_STATE_UP)
 		nb->notifier_call(nb, NETDEV_UP, &ni);
@@ -2329,6 +2330,7 @@
 	struct netdev_notifier_info ni;
 
 	nb = arg;
+	ni.ifp = ifp;
 	ni.dev = (struct net_device *)ifp;
 	nb->notifier_call(nb, NETDEV_REGISTER, &ni);
 }
@@ -2340,6 +2342,7 @@
 	struct netdev_notifier_info ni;
 
 	nb = arg;
+	ni.ifp = ifp;
 	ni.dev = (struct net_device *)ifp;
 	nb->notifier_call(nb, NETDEV_UNREGISTER, &ni);
 }
@@ -2351,6 +2354,7 @@
 	struct netdev_notifier_info ni;
 
 	nb = arg;
+	ni.ifp = ifp;
 	ni.dev = (struct net_device *)ifp;
 	nb->notifier_call(nb, NETDEV_CHANGEADDR, &ni);
 }
@@ -2362,6 +2366,7 @@
 	struct netdev_notifier_info ni;
 
 	nb = arg;
+	ni.ifp = ifp;
 	ni.dev = (struct net_device *)ifp;
 	nb->notifier_call(nb, NETDEV_CHANGEIFADDR, &ni);
 }