[NET] define HAVE_NETDEV_PRIV back-compat hook

include/linux/netdevice.h

@@ -42,13 +42,14 @@ struct divert_blk;
 struct vlan_group;
 struct ethtool_ops;
 
-					/* source back-compat hook */
+					/* source back-compat hooks */
 #define SET_ETHTOOL_OPS(netdev,ops) \
 	( (netdev)->ethtool_ops = (ops) )
 
 #define HAVE_ALLOC_NETDEV		/* feature macro: alloc_xxxdev
 					   functions are available. */
-#define HAVE_FREE_NETDEV
+#define HAVE_FREE_NETDEV		/* free_netdev() */
+#define HAVE_NETDEV_PRIV		/* netdev_priv() */
 
 #define NET_XMIT_SUCCESS	0
 #define NET_XMIT_DROP		1	/* skb dropped			*/