[SCTP]: Beginning of conversion to net-endian for embedded sctp_addr.

Part 1: rename sctp_chunk->source, sctp_sockaddr_entry->a,
sctp_transport->ipaddr and sctp_transport->saddr (to ..._h)

The next patch will reintroduce these fields and keep them as
net-endian mirrors of the original (renamed) ones.  Split in
two patches to make sure that we hadn't forgotten any instanes.

Later in the series we'll eliminate uses of host-endian variants
(basically switching users to net-endian counterparts as we
progress through that mess).  Then host-endian ones will die.

Other embedded host-endian sctp_addr will be easier to switch
directly, so we leave them alone for now.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index b70e3258..f460727 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -852,7 +852,7 @@
 
 	hbinfo.param_hdr.type = SCTP_PARAM_HEARTBEAT_INFO;
 	hbinfo.param_hdr.length = htons(sizeof(sctp_sender_hb_info_t));
-	hbinfo.daddr = transport->ipaddr;
+	hbinfo.daddr = transport->ipaddr_h;
 	hbinfo.sent_at = jiffies;
 	hbinfo.hb_nonce = transport->hb_nonce;
 
@@ -1167,8 +1167,8 @@
 		list_for_each(pos2, &asoc->peer.transport_addr_list) {
 			addr = list_entry(pos2, struct sctp_transport,
 					  transports);
-			if (sctp_cmp_addr_exact(&new_addr->ipaddr,
-						&addr->ipaddr)) {
+			if (sctp_cmp_addr_exact(&new_addr->ipaddr_h,
+						&addr->ipaddr_h)) {
 				found = 1;
 				break;
 			}
@@ -1179,7 +1179,7 @@
 
 	/* If a new address was added, ABORT the sender. */
 	if (!found && new_addr) {
-		sctp_sf_send_restart_abort(&new_addr->ipaddr, init, commands);
+		sctp_sf_send_restart_abort(&new_addr->ipaddr_h, init, commands);
 	}
 
 	/* Return success if all addresses were found. */