Index: madwifi-trunk-r3776/net80211/ieee80211.h
===================================================================
--- madwifi-trunk-r3776.orig/net80211/ieee80211.h	2008-07-17 04:14:08.000000000 +0200
+++ madwifi-trunk-r3776/net80211/ieee80211.h	2008-07-17 04:14:13.000000000 +0200
@@ -174,8 +174,6 @@
 #define	IEEE80211_SEQ_SEQ_MASK			0xfff0
 #define	IEEE80211_SEQ_SEQ_SHIFT			4
 
-#define	IEEE80211_SEQ_LEQ(a,b)	((int)((a)-(b)) <= 0)
-
 #define	IEEE80211_NWID_LEN			32
 
 #define	IEEE80211_QOS_TXOP			0x00ff
Index: madwifi-trunk-r3776/net80211/ieee80211_input.c
===================================================================
--- madwifi-trunk-r3776.orig/net80211/ieee80211_input.c	2008-07-17 04:14:08.000000000 +0200
+++ madwifi-trunk-r3776/net80211/ieee80211_input.c	2008-07-17 04:14:13.000000000 +0200
@@ -406,7 +406,7 @@
 				tid = 0;
 			rxseq = le16toh(*(__le16 *)wh->i_seq);
 			if ((wh->i_fc[1] & IEEE80211_FC1_RETRY) &&
-			    IEEE80211_SEQ_LEQ(rxseq, ni->ni_rxseqs[tid])) {
+			    (rxseq == ni->ni_rxseqs[tid])) {
 				/* duplicate, discard */
 				IEEE80211_DISCARD_MAC(vap, IEEE80211_MSG_INPUT,
 					bssid, "duplicate",