Index: head/sys/net80211/ieee80211.h
===================================================================
--- head/sys/net80211/ieee80211.h
+++ head/sys/net80211/ieee80211.h
@@ -815,6 +815,7 @@
 /* rate set entries are in .5 Mb/s units, and potentially marked as basic */
 #define	IEEE80211_RATE_BASIC		0x80
 #define	IEEE80211_RATE_VAL		0x7f
+#define	IEEE80211_RV(v)			((v) & IEEE80211_RATE_VAL)
 
 /* ERP information element flags */
 #define	IEEE80211_ERP_NON_ERP_PRESENT	0x01