- if (ieee80211_has_a4(hdr->frame_control) &&
- rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
- !rx->sdata->u.vlan.sta)
- return RX_DROP_UNUSABLE;
+ if (unlikely(ieee80211_has_a4(hdr->frame_control))) {
+ switch (rx->sdata->vif.type) {
+ case NL80211_IFTYPE_AP_VLAN:
+ if (!rx->sdata->u.vlan.sta)
+ return RX_DROP_UNUSABLE;
+ break;
+ case NL80211_IFTYPE_STATION:
+ if (!rx->sdata->u.mgd.use_4addr)
+ return RX_DROP_UNUSABLE;
+ break;
+ default:
+ return RX_DROP_UNUSABLE;
+ }
+ check_da = NULL;
+ check_sa = NULL;
+ } else switch (rx->sdata->vif.type) {
+ case NL80211_IFTYPE_AP:
+ case NL80211_IFTYPE_AP_VLAN:
+ check_da = NULL;
+ break;
+ case NL80211_IFTYPE_STATION:
+ if (!rx->sta ||
+ !test_sta_flag(rx->sta, WLAN_STA_TDLS_PEER))
+ check_sa = NULL;
+ break;
+ case NL80211_IFTYPE_MESH_POINT:
+ check_sa = NULL;
+ break;
+ default:
+ break;
+ }