mac80211: trace interface name

It's not all that useful to have the vif/sdata pointer,
we'd rather refer to the interfaces by their name.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index 05ccaad..05e161c 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -65,7 +65,7 @@
 					     struct ieee80211_sub_if_data,
 					     u.ap);
 
-			drv_sta_notify(local, &sdata->vif, STA_NOTIFY_REMOVE,
+			drv_sta_notify(local, sdata, STA_NOTIFY_REMOVE,
 				       &sta->sta);
 		}