--- src/sys/net/if.h	2008/01/11 11:59:40	1.20
+++ src/sys/net/if.h	2008/08/30 16:07:59	1.21
@@ -62,6 +62,7 @@
 #define	LINK_STATE_UNKNOWN	0	/* link invalid/unknown */
 #define	LINK_STATE_DOWN		1	/* link is down */
 #define	LINK_STATE_UP		2	/* link is up */
+#define	LINK_STATE_IS_UP(_s)	((_s) >= LINK_STATE_UP)
 
 struct ifnet;