tipc_sendmsg(): pass msghdr instead of its ->msg_iov

Signed-off-by: Al Viro <[e-mail]>

net/tipc/socket.c

···
  * tipc_sendmcast - send multicast message
  * @sock: socket structure
  * @seq: destination address
- * @iov: message data to send
+ * @msg: message to send
  * @dsz: total length of message data
  * @timeo: timeout to wait for wakeup
  *
···
  * Returns the number of bytes sent on success, or errno
  */
 static int tipc_sendmcast(struct  socket *sock, struct tipc_name_seq *seq,
-			  struct iovec *iov, size_t dsz, long timeo)
+			  struct msghdr *msg, size_t dsz, long timeo)
 {
 	struct sock *sk = sock->sk;
 	struct tipc_msg *mhdr = &tipc_sk(sk)->phdr;
···
 
 new_mtu:
 	mtu = tipc_bclink_get_mtu();
-	rc = tipc_msg_build(mhdr, iov, 0, dsz, mtu, &buf);
+	rc = tipc_msg_build(mhdr, msg->msg_iov, 0, dsz, mtu, &buf);
 	if (unlikely(rc < 0))
 		return rc;
 
···
 	timeo = sock_sndtimeo(sk, m->msg_flags & MSG_DONTWAIT);
 
 	if (dest->addrtype == TIPC_ADDR_MCAST) {
-		rc = tipc_sendmcast(sock, seq, iov, dsz, timeo);
+		rc = tipc_sendmcast(sock, seq, m, dsz, timeo);
 		goto exit;
 	} else if (dest->addrtype == TIPC_ADDR_NAME) {
 		u32 type = dest->addr.name.name.type;