[SCTP]: Switch sctp_endpoint_is_match() to net-endian.

The only caller (__sctp_rcv_lookup_endpoint()) also switched,
its caller adjusted

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/endpointola.c b/net/sctp/endpointola.c
index 7c781d6..c543f32 100644
--- a/net/sctp/endpointola.c
+++ b/net/sctp/endpointola.c
@@ -228,12 +228,10 @@
 					       const union sctp_addr *laddr)
 {
 	struct sctp_endpoint *retval;
-	union sctp_addr tmp;
-	flip_to_n(&tmp, laddr);
 
 	sctp_read_lock(&ep->base.addr_lock);
-	if (ep->base.bind_addr.port == laddr->v4.sin_port) {
-		if (sctp_bind_addr_match(&ep->base.bind_addr, &tmp,
+	if (htons(ep->base.bind_addr.port) == laddr->v4.sin_port) {
+		if (sctp_bind_addr_match(&ep->base.bind_addr, laddr,
 					 sctp_sk(ep->base.sk))) {
 			retval = ep;
 			goto out;