qcacmn: Do not add AST entry when PEER exist

Do not add WDS AST entry when peer exists with
same mac address

Change-Id: I533f431bb8c137d484c21fe8e411b1da7fe0d0cb
CRs-fixed: 2514962

dp/wifi3.0/dp_peer.c

@@ -579,6 +579,7 @@ int dp_peer_add_ast(struct dp_soc *soc,
 	int  ret = -1;
 	txrx_ast_free_cb cb = NULL;
 	void *cookie = NULL;
+	struct dp_peer *tmp_peer = NULL;
 
 	qdf_spin_lock_bh(&soc->ast_lock);
 	if (peer->delete_in_progress) {
@@ -628,6 +629,13 @@ int dp_peer_add_ast(struct dp_soc *soc,
 			qdf_spin_unlock_bh(&soc->ast_lock);
 			return 0;
 		}
+		tmp_peer = dp_peer_find_hash_find(soc, mac_addr, 0,
+						  DP_VDEV_ALL);
+		if (tmp_peer) {
+			dp_peer_unref_delete(tmp_peer);
+			qdf_spin_unlock_bh(&soc->ast_lock);
+			return 0;
+		}
 	} else {
 		/* For HWMWDS_SEC entries can be added for same mac address
 		 * do not check for existing entry