[SCTP] embedded sctp_addr: net-endian mirrors

Add sctp_chunk->source, sctp_sockaddr_entry->a, sctp_transport->ipaddr
and sctp_transport->saddr, maintain them as net-endian mirrors of
their host-endian counterparts.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c
index 20883ff..3632740 100644
--- a/net/sctp/protocol.c
+++ b/net/sctp/protocol.c
@@ -150,9 +150,10 @@
 		/* Add the address to the local list.  */
 		addr = t_new(struct sctp_sockaddr_entry, GFP_ATOMIC);
 		if (addr) {
-			addr->a_h.v4.sin_family = AF_INET;
-			addr->a_h.v4.sin_port = 0;
-			addr->a_h.v4.sin_addr.s_addr = ifa->ifa_local;
+			addr->a.v4.sin_family = AF_INET;
+			addr->a.v4.sin_port = 0;
+			addr->a.v4.sin_addr.s_addr = ifa->ifa_local;
+			addr->a_h = addr->a;
 			list_add_tail(&addr->list, addrlist);
 		}
 	}