mac80211: add NOTEXIST station state

This will be used by drivers later if they
need to have stations inserted all the time,
in mac80211 has no purpose, is never used
and sta_state starts out in NONE.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/sta_info.c

@@ -293,6 +293,8 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 	sta->sdata = sdata;
 	sta->last_rx = jiffies;
 
+	sta->sta_state = IEEE80211_STA_NONE;
+
 	do_posix_clock_monotonic_gettime(&uptime);
 	sta->last_connected = uptime.tv_sec;
 	ewma_init(&sta->avg_signal, 1024, 8);

net/mac80211/sta_info.h

@@ -77,6 +77,7 @@ enum ieee80211_sta_info_flags {
 
 enum ieee80211_sta_state {
 	/* NOTE: These need to be ordered correctly! */
+	IEEE80211_STA_NOTEXIST,
 	IEEE80211_STA_NONE,
 	IEEE80211_STA_AUTH,
 	IEEE80211_STA_ASSOC,