smc: convert to ->poll_mask

smc->clcsock is an internal TCP socket, after TCP socket
converts to ->poll_mask, ->poll doesn't exist any more.
So just convert smc socket to ->poll_mask too.

Fixes: 2c7d3da ("net/tcp: convert to ->poll_mask")
Reported-by: [email protected]
Cc: Christoph Hellwig <[email protected]>
Cc: Ursula Braun <[email protected]>
Signed-off-by: Cong Wang <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: congwang

net/smc/af_smc.c

@@ -1273,8 +1273,7 @@ static __poll_t smc_accept_poll(struct sock *parent)
 	return mask;
 }
 
-static __poll_t smc_poll(struct file *file, struct socket *sock,
-			     poll_table *wait)
+static __poll_t smc_poll_mask(struct socket *sock, __poll_t events)
 {
 	struct sock *sk = sock->sk;
 	__poll_t mask = 0;
@@ -1290,7 +1289,7 @@ static __poll_t smc_poll(struct file *file, struct socket *sock,
 	if ((sk->sk_state == SMC_INIT) || smc->use_fallback) {
 		/* delegate to CLC child sock */
 		release_sock(sk);
-		mask = smc->clcsock->ops->poll(file, smc->clcsock, wait);
+		mask = smc->clcsock->ops->poll_mask(smc->clcsock, events);
 		lock_sock(sk);
 		sk->sk_err = smc->clcsock->sk->sk_err;
 		if (sk->sk_err) {
@@ -1308,11 +1307,6 @@ static __poll_t smc_poll(struct file *file, struct socket *sock,
 			}
 		}
 	} else {
-		if (sk->sk_state != SMC_CLOSED) {
-			release_sock(sk);
-			sock_poll_wait(file, sk_sleep(sk), wait);
-			lock_sock(sk);
-		}
 		if (sk->sk_err)
 			mask |= EPOLLERR;
 		if ((sk->sk_shutdown == SHUTDOWN_MASK) ||
@@ -1625,7 +1619,7 @@ static const struct proto_ops smc_sock_ops = {
 	.socketpair	= sock_no_socketpair,
 	.accept		= smc_accept,
 	.getname	= smc_getname,
-	.poll		= smc_poll,
+	.poll_mask	= smc_poll_mask,
 	.ioctl		= smc_ioctl,
 	.listen		= smc_listen,
 	.shutdown	= smc_shutdown,