+ rcu_read_lock();
+ switch (sdata->vif.type) {
+ case NL80211_IFTYPE_AP_VLAN:
+ rcu_read_lock();
+ sta = rcu_dereference(sdata->u.vlan.sta);
+ if (sta)
+ sta_flags = get_sta_flags(sta);
+ rcu_read_unlock();
+ if (sta)
+ break;
+ case NL80211_IFTYPE_AP:
+ ra = skb->data;
+ break;
+ case NL80211_IFTYPE_WDS:
+ ra = sdata->u.wds.remote_addr;
+ break;
+#ifdef CONFIG_MAC80211_MESH
+ case NL80211_IFTYPE_MESH_POINT:
+ /*
+ * XXX: This is clearly broken ... but already was before,
+ * because ieee80211_fill_mesh_addresses() would clear A1
+ * except for multicast addresses.
+ */
+ break;
+#endif
+ case NL80211_IFTYPE_STATION:
+ ra = sdata->u.mgd.bssid;
+ break;
+ case NL80211_IFTYPE_ADHOC:
+ ra = skb->data;
+ break;
+ default:
+ break;