[SCTP]: "list_for_each()" -> "list_for_each_entry()" where appropriate.

Replacing (almost) all invocations of list_for_each() with
list_for_each_entry() tightens up the code and allows for the deletion
of numerous list iterator variables that are no longer necessary.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 14 insertions, 20 deletions

diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index 422c98aa9d5..b4cd2b71953 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -718,12 +718,11 @@ struct sctp_transport *sctp_assoc_lookup_paddr(
 					const union sctp_addr *address)
 {
 	struct sctp_transport *t;
-	struct list_head *pos;
 
 	/* Cycle through all transports searching for a peer address. */
 
-	list_for_each(pos, &asoc->peer.transport_addr_list) {
-		t = list_entry(pos, struct sctp_transport, transports);
+	list_for_each_entry(t, &asoc->peer.transport_addr_list,
+			transports) {
 		if (sctp_cmp_addr_exact(address, &t->ipaddr))
 			return t;
 	}
@@ -762,7 +761,6 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
 	struct sctp_transport *second;
 	struct sctp_ulpevent *event;
 	struct sockaddr_storage addr;
-	struct list_head *pos;
 	int spc_state = 0;
 
 	/* Record the transition on the transport.  */
@@ -814,8 +812,8 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
 	 */
 	first = NULL; second = NULL;
 
-	list_for_each(pos, &asoc->peer.transport_addr_list) {
-		t = list_entry(pos, struct sctp_transport, transports);
+	list_for_each_entry(t, &asoc->peer.transport_addr_list,
+			transports) {
 
 		if ((t->state == SCTP_INACTIVE) ||
 		    (t->state == SCTP_UNCONFIRMED))
@@ -932,7 +930,6 @@ struct sctp_transport *sctp_assoc_lookup_tsn(struct sctp_association *asoc,
 {
 	struct sctp_transport *active;
 	struct sctp_transport *match;
-	struct list_head *entry, *pos;
 	struct sctp_transport *transport;
 	struct sctp_chunk *chunk;
 	__be32 key = htonl(tsn);
@@ -956,8 +953,8 @@ struct sctp_transport *sctp_assoc_lookup_tsn(struct sctp_association *asoc,
 
 	active = asoc->peer.active_path;
 
-	list_for_each(entry, &active->transmitted) {
-		chunk = list_entry(entry, struct sctp_chunk, transmitted_list);
+	list_for_each_entry(chunk, &active->transmitted,
+			transmitted_list) {
 
 		if (key == chunk->subh.data_hdr->tsn) {
 			match = active;
@@ -966,14 +963,13 @@ struct sctp_transport *sctp_assoc_lookup_tsn(struct sctp_association *asoc,
 	}
 
 	/* If not found, go search all the other transports. */
-	list_for_each(pos, &asoc->peer.transport_addr_list) {
-		transport = list_entry(pos, struct sctp_transport, transports);
+	list_for_each_entry(transport, &asoc->peer.transport_addr_list,
+			transports) {
 
 		if (transport == active)
 			break;
-		list_for_each(entry, &transport->transmitted) {
-			chunk = list_entry(entry, struct sctp_chunk,
-					   transmitted_list);
+		list_for_each_entry(chunk, &transport->transmitted,
+				transmitted_list) {
 			if (key == chunk->subh.data_hdr->tsn) {
 				match = transport;
 				goto out;
@@ -1154,9 +1150,8 @@ void sctp_assoc_update(struct sctp_association *asoc,
 
 	} else {
 		/* Add any peer addresses from the new association. */
-		list_for_each(pos, &new->peer.transport_addr_list) {
-			trans = list_entry(pos, struct sctp_transport,
-					   transports);
+		list_for_each_entry(trans, &new->peer.transport_addr_list,
+				transports) {
 			if (!sctp_assoc_lookup_paddr(asoc, &trans->ipaddr))
 				sctp_assoc_add_peer(asoc, &trans->ipaddr,
 						    GFP_ATOMIC, trans->state);
@@ -1306,15 +1301,14 @@ struct sctp_transport *sctp_assoc_choose_shutdown_transport(
 void sctp_assoc_sync_pmtu(struct sctp_association *asoc)
 {
 	struct sctp_transport *t;
-	struct list_head *pos;
 	__u32 pmtu = 0;
 
 	if (!asoc)
 		return;
 
 	/* Get the lowest pmtu of all the transports. */
-	list_for_each(pos, &asoc->peer.transport_addr_list) {
-		t = list_entry(pos, struct sctp_transport, transports);
+	list_for_each_entry(t, &asoc->peer.transport_addr_list,
+				transports) {
 		if (t->pmtu_pending && t->dst) {
 			sctp_transport_update_pmtu(t, dst_mtu(t->dst));
 			t->pmtu_pending = 0;