cfg80211: fix VHT TDLS peer AID verification

I (Johannes) accidentally applied the first version of the patch
("Allow TDLS peer AID to be configured for VHT"). Now apply just
the changes between v1 and v2 to get the AID verification and
prefer the new attribute over the old one.
Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/wireless/nl80211.c

@@ -3972,10 +3972,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 	params.listen_interval =
 		nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
 
-	if (info->attrs[NL80211_ATTR_STA_AID])
-		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
-	else
+	if (info->attrs[NL80211_ATTR_PEER_AID])
 		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
+	else
+		params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
 	if (!params.aid || params.aid > IEEE80211_MAX_AID)
 		return -EINVAL;
 
@@ -4027,7 +4027,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 			params.sta_modify_mask &= ~STATION_PARAM_APPLY_UAPSD;
 
 		/* TDLS peers cannot be added */
-		if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+		if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
+		    info->attrs[NL80211_ATTR_PEER_AID])
 			return -EINVAL;
 		/* but don't bother the driver with it */
 		params.sta_flags_mask &= ~BIT(NL80211_STA_FLAG_TDLS_PEER);
@@ -4053,7 +4054,8 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 		if (params.sta_flags_mask & BIT(NL80211_STA_FLAG_ASSOCIATED))
 			return -EINVAL;
 		/* TDLS peers cannot be added */
-		if (params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+		if ((params.sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) ||
+		    info->attrs[NL80211_ATTR_PEER_AID])
 			return -EINVAL;
 		break;
 	case NL80211_IFTYPE_STATION: