mptcp: drop 'first' in __mptcp_subflow_push_pending

Signed-off-by: Geliang Tang <[email protected]>

net/mptcp/protocol.c

@@ -1639,7 +1639,7 @@ void __mptcp_push_pending(struct sock *sk, unsigned int flags)
 		mptcp_check_send_data_fin(sk);
 }
 
-static void __mptcp_subflow_push_pending(struct sock *sk, struct sock *ssk, bool first)
+static void __mptcp_subflow_push_pending(struct sock *sk, struct sock *ssk)
 {
 	struct mptcp_sock *msk = mptcp_sk(sk);
 	struct mptcp_sendmsg_info info = {
@@ -1654,19 +1654,6 @@ static void __mptcp_subflow_push_pending(struct sock *sk, struct sock *ssk, bool
 		struct mptcp_subflow_context *subflow = mptcp_subflow_ctx(ssk);
 		int ret = 0;
 
-		/* check for a different subflow usage only after
-		 * spooling the first chunk of data
-		 */
-		if (first) {
-			mptcp_subflow_set_scheduled(subflow, false);
-			ret = __subflow_push_pending(sk, ssk, &info);
-			first = false;
-			if (ret <= 0)
-				break;
-			copied += ret;
-			continue;
-		}
-
 		if (mptcp_sched_get_send(msk))
 			goto out;
 
@@ -3415,7 +3402,7 @@ void __mptcp_check_push(struct sock *sk, struct sock *ssk)
 		return;
 
 	if (!sock_owned_by_user(sk))
-		__mptcp_subflow_push_pending(sk, ssk, false);
+		__mptcp_subflow_push_pending(sk, ssk);
 	else
 		__set_bit(MPTCP_PUSH_PENDING, &mptcp_sk(sk)->cb_flags);
 }
@@ -3513,7 +3500,7 @@ void mptcp_subflow_process_delegated(struct sock *ssk, long status)
 	if (status & BIT(MPTCP_DELEGATE_SEND)) {
 		mptcp_data_lock(sk);
 		if (!sock_owned_by_user(sk))
-			__mptcp_subflow_push_pending(sk, ssk, true);
+			__mptcp_subflow_push_pending(sk, ssk);
 		else
 			__set_bit(MPTCP_PUSH_PENDING, &mptcp_sk(sk)->cb_flags);
 		mptcp_data_unlock(sk);