cfg80211: dont use union for wext

Otherwise it becomes very hard to reset the structs
correctly since wext can be configured while the
interface is down.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

include/net/cfg80211.h

@@ -1270,10 +1270,8 @@ struct wireless_dev {
 #ifdef CONFIG_WIRELESS_EXT
 	/* wext data */
 	struct {
-		union {
 		struct cfg80211_ibss_params ibss;
 		struct cfg80211_connect_params connect;
-		};
 		u8 *ie;
 		size_t ie_len;
 		u8 bssid[ETH_ALEN];