[MAC80211]: remove ieee80211_msg_wep_frame_unknown_key

Neither hostapd nor wpa_supplicant really use it.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/mac80211/ieee80211_common.h

@@ -48,7 +48,7 @@ enum ieee80211_msg_type {
 	ieee80211_msg_tx_callback_ack = 1,
 	ieee80211_msg_tx_callback_fail = 2,
 	/* hole at 3, was ieee80211_msg_passive_scan but unused */
-	ieee80211_msg_wep_frame_unknown_key = 4,
+	/* hole at 4, was ieee80211_msg_wep_frame_unknown_key but now unused */
 	ieee80211_msg_michael_mic_failure = 5,
 	/* hole at 6, was monitor but never sent to userspace */
 	ieee80211_msg_sta_not_assoc = 7,

net/mac80211/rx.c

@@ -346,12 +346,11 @@ ieee80211_rx_h_load_key(struct ieee80211_txrx_data *rx)
 					       MAC_ARG(hdr->addr1),
 					       MAC_ARG(hdr->addr2),
 					       MAC_ARG(hdr->addr3));
-				if (!rx->local->apdev)
+				/*
+				 * TODO: notify userspace about this
+				 * via cfg/nl80211
+				 */
 				return TXRX_DROP;
-				ieee80211_rx_mgmt(
-					rx->local, rx->skb, rx->u.rx.status,
-					ieee80211_msg_wep_frame_unknown_key);
-				return TXRX_QUEUED;
 			}
 		}
 	}