svn commit: r195319 - projects/mesh11s/sys/net80211

[Sam Leffler]

Author: sam
Date: Fri Jul  3 17:58:45 2009
New Revision: 195319
URL: http://svn.freebsd.org/changeset/base/195319

Log:
  revert node hash until we find a cheaper hash function

Modified:
  projects/mesh11s/sys/net80211/ieee80211_node.h

Modified: projects/mesh11s/sys/net80211/ieee80211_node.h
==============================================================================
--- projects/mesh11s/sys/net80211/ieee80211_node.h	Fri Jul  3 17:54:33 2009	(r195318)
+++ projects/mesh11s/sys/net80211/ieee80211_node.h	Fri Jul  3 17:58:45 2009	(r195319)
@@ -58,8 +58,10 @@
 #define	IEEE80211_NONERP_PRESENT_AGE	msecs_to_ticks(60*1000)
 
 #define	IEEE80211_NODE_HASHSIZE	32		/* NB: hash size must be pow2 */
-#define	IEEE80211_NODE_HASH(ic, addr) \
-	(ieee80211_mac_hash(ic, addr) & (IEEE80211_NODE_HASHSIZE-1))
+/* simple hash is enough for variation of macaddr */
+#define	IEEE80211_NODE_HASH(ic, addr)	\
+	(((const uint8_t *)(addr))[IEEE80211_ADDR_LEN - 1] % \
+		IEEE80211_NODE_HASHSIZE)
 
 struct ieee80211_node_table;
 struct ieee80211com;