madwifi: some misconfigured APs broadcast NULL BSSIDs, which can confuse the STA. Ignore those when scanning.

SVN-Revision: 11795

package/madwifi/patches/358-ignore_broken_bssid.patch

@@ -0,0 +1,18 @@
+Some misconfigured APs broadcast NULL BSSIDs, which can confuse the STA
+Ignore those when scanning.
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+
+--- a/net80211/ieee80211_scan_sta.c
++++ b/net80211/ieee80211_scan_sta.c
+@@ -242,6 +242,10 @@
+ 	struct ieee80211_scan_entry *ise;
+ 	int hash;
+ 
++	/* workaround for broken APs that broadcast NULL BSSIDs */
++	if (memcmp(wh->i_addr3, "\x00\x00\x00\x00\x00\x00", 6) == 0)
++		return 0;
++
+ 	hash = STA_HASH(macaddr);
+ 	SCAN_STA_LOCK_IRQ(st);
+ 	LIST_FOREACH(se, &st->st_hash[hash], se_hash)