diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c
index 8e386899ceb9..e1f20ff8fdb4 100644
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -174,8 +174,6 @@ static int subflow_check_req(struct request_sock *req,
 
 		if (unlikely(listener->pm_listener))
 			return subflow_reset_req_endp(req, skb);
-		if (opt_mp_join)
-			return 0;
 	} else if (opt_mp_join) {
 		SUBFLOW_REQ_INC_STATS(req, MPTCP_MIB_JOINSYNRX);
 
@@ -277,9 +275,6 @@ int mptcp_subflow_init_cookie_req(struct request_sock *req,
 
 	opt_mp_capable = !!(mp_opt.suboptions & OPTION_MPTCP_MPC_ACK);
 	opt_mp_join = !!(mp_opt.suboptions & OPTION_MPTCP_MPJ_ACK);
-	if (opt_mp_capable && opt_mp_join)
-		return -EINVAL;
-
 	if (opt_mp_capable && listener->request_mptcp) {
 		if (mp_opt.sndr_key == 0)
 			return -EINVAL;