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/main.c b/net/mac80211/main.c
index dbf05b4..98320a9 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -222,8 +222,7 @@
 		}
 	}
 
-	drv_bss_info_changed(local, &sdata->vif,
-			     &sdata->vif.bss_conf, changed);
+	drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, changed);
 }
 
 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata)