mac80211: minor fix for the offchannel status change notification

SVN-Revision: 22417

package/mac80211/patches/524-mac80211_offchannel_fix.patch

@@ -0,0 +1,27 @@
+--- a/net/mac80211/main.c
++++ b/net/mac80211/main.c
+@@ -99,11 +99,13 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
+ 	int ret = 0;
+ 	int power;
+ 	enum nl80211_channel_type channel_type;
++	u32 offchannel_flag;
+ 
+ 	might_sleep();
+ 
+ 	scan_chan = local->scan_channel;
+ 
++	offchannel_flag = local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
+ 	if (scan_chan) {
+ 		chan = scan_chan;
+ 		channel_type = NL80211_CHAN_NO_HT;
+@@ -117,8 +119,9 @@ int ieee80211_hw_config(struct ieee80211_local *local, u32 changed)
+ 		channel_type = local->_oper_channel_type;
+ 		local->hw.conf.flags &= ~IEEE80211_CONF_OFFCHANNEL;
+ 	}
++	offchannel_flag ^= local->hw.conf.flags & IEEE80211_CONF_OFFCHANNEL;
+ 
+-	if (chan != local->hw.conf.channel ||
++	if (offchannel_flag || chan != local->hw.conf.channel ||
+ 	    channel_type != local->hw.conf.channel_type) {
+ 		local->hw.conf.channel = chan;
+ 		local->hw.conf.channel_type = channel_type;