net/sctp/sctp_socket.c: Fix printf string for size_t.

- also fix sctp.h declaration type of sctp_get_port

include/net/sctp/sctp.h

@@ -123,7 +123,7 @@ extern int sctp_copy_local_addr_list(sctp_protocol_t *, sctp_bind_addr_t *,
  */
 extern int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
 extern int sctp_inet_listen(struct socket *sock, int backlog);
-extern int sctp_get_port(struct sock *sk, unsigned short snum);
+extern long sctp_get_port(struct sock *sk, unsigned short snum);
 extern void sctp_write_space(struct sock *sk);
 extern unsigned int sctp_poll(struct file *file, struct socket *sock,
 		poll_table *wait);

net/sctp/sctp_socket.c

@@ -800,7 +800,7 @@ int sctp_sendmsg(struct sock *sk, struct msghdr *msg, int size)
 		associd = sinfo->sinfo_assoc_id;
 	}
 
-	SCTP_DEBUG_PRINTK("msg_len: %d, sinfo_flags: 0x%x\n",
+	SCTP_DEBUG_PRINTK("msg_len: %Zd, sinfo_flags: 0x%x\n",
 			  msg_len, sinfo_flags);
 
 	/* If MSG_EOF|MSG_ABORT is set, no data can be sent.  Disallow