[PATCH net-next 00/17] TIPC: Another mixed bag of cleanups and bugfixes

[PATCH net-next 00/17] TIPC: Another mixed bag of cleanups and bugfixes

[Paul Gortmaker]

We are still seeing some rewards from dumping the native API stuff,
things like the top two struct amalgamation commits are a direct
result of that.  The rest is just a mixed bag of largely unrelated
small bugfixes and other cleanups as summarized below.

Paul.

--------


The following changes since commit dee9f4bceb5fd9dbfcc1567148fccdbf16d6a38a:

  net: Make flow cache paths use a const struct flowi. (2011-02-22 18:44:31 -0800)

are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/paulg/net-next-2.6.git tipc-Feb23-2011

Allan Stephens (17):
      tipc: Combine port structure with tipc_port structure
      tipc: Combine bearer structure with tipc_bearer structure
      tipc: Remove unused global variable tipc_user_count
      tipc: Prevent invalid memory access when sending to configuration service
      tipc: Improve handling of invalid link tolerance values
      tipc: Fix print statements that assume pointers are 32-bit values
      tipc: Clean out all remaining instances of #if 0'd unused code
      tipc: Clean up tracking of node requesting a broadcast retransmit
      tipc: Eliminate unnecessary locking when starting topology service
      tipc: Improve accuracy of link transmit queue maximum size statistic
      tipc: Set unused probe field of link protocol messages to defined value
      tipc: Minor optimization to topology service connection establishment
      tipc: Fix port counter handling to correct congestion control
      tipc: Add in missing lock during link initialization
      tipc: Remove support for per-connection message sequence numbering
      tipc: Remove unused message header field for requested number of links
      tipc: Avoid reliable broadcast preparation for NACK messages

 include/linux/tipc.h        |    8 +-
 include/linux/tipc_config.h |   32 +----
 net/tipc/bcast.c            |   47 ++++---
 net/tipc/bcast.h            |    3 +-
 net/tipc/bearer.c           |  100 +++++++-------
 net/tipc/bearer.h           |   67 +++++-----
 net/tipc/core.c             |    3 +-
 net/tipc/core.h             |    3 +-
 net/tipc/discover.c         |   37 +++---
 net/tipc/discover.h         |    9 +-
 net/tipc/link.c             |   82 ++++++------
 net/tipc/link.h             |   28 ++---
 net/tipc/msg.c              |    7 +-
 net/tipc/msg.h              |   22 +---
 net/tipc/node.c             |    4 +-
 net/tipc/port.c             |  306 +++++++++++++++++++++----------------------
 net/tipc/port.h             |   73 +++++------
 net/tipc/socket.c           |    6 +-
 net/tipc/subscr.c           |   13 +--
 19 files changed, 381 insertions(+), 469 deletions(-)

[PATCH net-next 01/17] tipc: Combine port structure with tipc_port structure

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Merge two distinct structures containing information about a TIPC port
into a single structure. The structures were previously kept separate
so that public information about a port could be made available to
applications using TIPC's native API, while the remaining information
was kept private for use by TIPC itself. However, now that the native
API has been removed there is no longer any need for this somewhat
confusing arrangement.

Since one of the structures was already embedded within the other, the
change largely involves replacing instances of "publ.foo" with "foo".
The changes do not otherwise alter the operation of TIPC ports.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/link.c   |   46 +++++-----
 net/tipc/link.h   |    6 +-
 net/tipc/port.c   |  234 ++++++++++++++++++++++++++--------------------------
 net/tipc/port.h   |   67 +++++++---------
 net/tipc/subscr.c |    6 +-
 5 files changed, 175 insertions(+), 184 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 18702f5..e30770d 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2,7 +2,7 @@
  * net/tipc/link.c: TIPC link code
  *
  * Copyright (c) 1996-2007, Ericsson AB
- * Copyright (c) 2004-2007, Wind River Systems
+ * Copyright (c) 2004-2007, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -90,7 +90,7 @@ static void link_handle_out_of_seq_msg(struct link *l_ptr,
 static void link_recv_proto_msg(struct link *l_ptr, struct sk_buff *buf);
 static int  link_recv_changeover_msg(struct link **l_ptr, struct sk_buff **buf);
 static void link_set_supervision_props(struct link *l_ptr, u32 tolerance);
-static int  link_send_sections_long(struct port *sender,
+static int  link_send_sections_long(struct tipc_port *sender,
 				    struct iovec const *msg_sect,
 				    u32 num_sect, u32 destnode);
 static void link_check_defragm_bufs(struct link *l_ptr);
@@ -406,7 +406,7 @@ static void link_start(struct link *l_ptr)
 
 static int link_schedule_port(struct link *l_ptr, u32 origport, u32 sz)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 
 	spin_lock_bh(&tipc_port_list_lock);
 	p_ptr = tipc_port_lock(origport);
@@ -415,7 +415,7 @@ static int link_schedule_port(struct link *l_ptr, u32 origport, u32 sz)
 			goto exit;
 		if (!list_empty(&p_ptr->wait_list))
 			goto exit;
-		p_ptr->publ.congested = 1;
+		p_ptr->congested = 1;
 		p_ptr->waiting_pkts = 1 + ((sz - 1) / l_ptr->max_pkt);
 		list_add_tail(&p_ptr->wait_list, &l_ptr->waiting_ports);
 		l_ptr->stats.link_congs++;
@@ -428,8 +428,8 @@ exit:
 
 void tipc_link_wakeup_ports(struct link *l_ptr, int all)
 {
-	struct port *p_ptr;
-	struct port *temp_p_ptr;
+	struct tipc_port *p_ptr;
+	struct tipc_port *temp_p_ptr;
 	int win = l_ptr->queue_limit[0] - l_ptr->out_queue_size;
 
 	if (all)
@@ -445,11 +445,11 @@ void tipc_link_wakeup_ports(struct link *l_ptr, int all)
 		if (win <= 0)
 			break;
 		list_del_init(&p_ptr->wait_list);
-		spin_lock_bh(p_ptr->publ.lock);
-		p_ptr->publ.congested = 0;
-		p_ptr->wakeup(&p_ptr->publ);
+		spin_lock_bh(p_ptr->lock);
+		p_ptr->congested = 0;
+		p_ptr->wakeup(p_ptr);
 		win -= p_ptr->waiting_pkts;
-		spin_unlock_bh(p_ptr->publ.lock);
+		spin_unlock_bh(p_ptr->lock);
 	}
 
 exit:
@@ -1027,12 +1027,12 @@ int tipc_send_buf_fast(struct sk_buff *buf, u32 destnode)
  * except for total message length.
  * Returns user data length or errno.
  */
-int tipc_link_send_sections_fast(struct port *sender,
+int tipc_link_send_sections_fast(struct tipc_port *sender,
 				 struct iovec const *msg_sect,
 				 const u32 num_sect,
 				 u32 destaddr)
 {
-	struct tipc_msg *hdr = &sender->publ.phdr;
+	struct tipc_msg *hdr = &sender->phdr;
 	struct link *l_ptr;
 	struct sk_buff *buf;
 	struct tipc_node *node;
@@ -1045,7 +1045,7 @@ again:
 	 * (Must not hold any locks while building message.)
 	 */
 
-	res = tipc_msg_build(hdr, msg_sect, num_sect, sender->publ.max_pkt,
+	res = tipc_msg_build(hdr, msg_sect, num_sect, sender->max_pkt,
 			!sender->user_port, &buf);
 
 	read_lock_bh(&tipc_net_lock);
@@ -1056,7 +1056,7 @@ again:
 		if (likely(l_ptr)) {
 			if (likely(buf)) {
 				res = link_send_buf_fast(l_ptr, buf,
-							 &sender->publ.max_pkt);
+							 &sender->max_pkt);
 				if (unlikely(res < 0))
 					buf_discard(buf);
 exit:
@@ -1075,7 +1075,7 @@ exit:
 			if (link_congested(l_ptr) ||
 			    !list_empty(&l_ptr->b_ptr->cong_links)) {
 				res = link_schedule_port(l_ptr,
-							 sender->publ.ref, res);
+							 sender->ref, res);
 				goto exit;
 			}
 
@@ -1084,12 +1084,12 @@ exit:
 			 * then re-try fast path or fragment the message
 			 */
 
-			sender->publ.max_pkt = l_ptr->max_pkt;
+			sender->max_pkt = l_ptr->max_pkt;
 			tipc_node_unlock(node);
 			read_unlock_bh(&tipc_net_lock);
 
 
-			if ((msg_hdr_sz(hdr) + res) <= sender->publ.max_pkt)
+			if ((msg_hdr_sz(hdr) + res) <= sender->max_pkt)
 				goto again;
 
 			return link_send_sections_long(sender, msg_sect,
@@ -1123,14 +1123,14 @@ exit:
  *
  * Returns user data length or errno.
  */
-static int link_send_sections_long(struct port *sender,
+static int link_send_sections_long(struct tipc_port *sender,
 				   struct iovec const *msg_sect,
 				   u32 num_sect,
 				   u32 destaddr)
 {
 	struct link *l_ptr;
 	struct tipc_node *node;
-	struct tipc_msg *hdr = &sender->publ.phdr;
+	struct tipc_msg *hdr = &sender->phdr;
 	u32 dsz = msg_data_sz(hdr);
 	u32 max_pkt, fragm_sz, rest;
 	struct tipc_msg fragm_hdr;
@@ -1142,7 +1142,7 @@ static int link_send_sections_long(struct port *sender,
 
 again:
 	fragm_no = 1;
-	max_pkt = sender->publ.max_pkt - INT_H_SIZE;
+	max_pkt = sender->max_pkt - INT_H_SIZE;
 		/* leave room for tunnel header in case of link changeover */
 	fragm_sz = max_pkt - INT_H_SIZE;
 		/* leave room for fragmentation header in each fragment */
@@ -1157,7 +1157,7 @@ again:
 
 	tipc_msg_init(&fragm_hdr, MSG_FRAGMENTER, FIRST_FRAGMENT,
 		 INT_H_SIZE, msg_destnode(hdr));
-	msg_set_link_selector(&fragm_hdr, sender->publ.ref);
+	msg_set_link_selector(&fragm_hdr, sender->ref);
 	msg_set_size(&fragm_hdr, max_pkt);
 	msg_set_fragm_no(&fragm_hdr, 1);
 
@@ -1238,13 +1238,13 @@ error:
 	node = tipc_node_find(destaddr);
 	if (likely(node)) {
 		tipc_node_lock(node);
-		l_ptr = node->active_links[sender->publ.ref & 1];
+		l_ptr = node->active_links[sender->ref & 1];
 		if (!l_ptr) {
 			tipc_node_unlock(node);
 			goto reject;
 		}
 		if (l_ptr->max_pkt < max_pkt) {
-			sender->publ.max_pkt = l_ptr->max_pkt;
+			sender->max_pkt = l_ptr->max_pkt;
 			tipc_node_unlock(node);
 			for (; buf_chain; buf_chain = buf) {
 				buf = buf_chain->next;
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 70967e6..85fd3bc 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -2,7 +2,7 @@
  * net/tipc/link.h: Include file for TIPC link code
  *
  * Copyright (c) 1995-2006, Ericsson AB
- * Copyright (c) 2004-2005, Wind River Systems
+ * Copyright (c) 2004-2005, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -211,7 +211,7 @@ struct link {
 	} stats;
 };
 
-struct port;
+struct tipc_port;
 
 struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer,
 			      const struct tipc_media_addr *media_addr);
@@ -230,7 +230,7 @@ void tipc_link_reset(struct link *l_ptr);
 int tipc_link_send(struct sk_buff *buf, u32 dest, u32 selector);
 int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf);
 u32 tipc_link_get_max_pkt(u32 dest, u32 selector);
-int tipc_link_send_sections_fast(struct port *sender,
+int tipc_link_send_sections_fast(struct tipc_port *sender,
 				 struct iovec const *msg_sect,
 				 const u32 num_sect,
 				 u32 destnode);
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 067bab2..aff5dc0 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -2,7 +2,7 @@
  * net/tipc/port.c: TIPC port code
  *
  * Copyright (c) 1992-2007, Ericsson AB
- * Copyright (c) 2004-2008, Wind River Systems
+ * Copyright (c) 2004-2008, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -54,29 +54,29 @@ static DEFINE_SPINLOCK(queue_lock);
 
 static LIST_HEAD(ports);
 static void port_handle_node_down(unsigned long ref);
-static struct sk_buff *port_build_self_abort_msg(struct port *, u32 err);
-static struct sk_buff *port_build_peer_abort_msg(struct port *, u32 err);
+static struct sk_buff *port_build_self_abort_msg(struct tipc_port *, u32 err);
+static struct sk_buff *port_build_peer_abort_msg(struct tipc_port *, u32 err);
 static void port_timeout(unsigned long ref);
 
 
-static u32 port_peernode(struct port *p_ptr)
+static u32 port_peernode(struct tipc_port *p_ptr)
 {
-	return msg_destnode(&p_ptr->publ.phdr);
+	return msg_destnode(&p_ptr->phdr);
 }
 
-static u32 port_peerport(struct port *p_ptr)
+static u32 port_peerport(struct tipc_port *p_ptr)
 {
-	return msg_destport(&p_ptr->publ.phdr);
+	return msg_destport(&p_ptr->phdr);
 }
 
-static u32 port_out_seqno(struct port *p_ptr)
+static u32 port_out_seqno(struct tipc_port *p_ptr)
 {
-	return msg_transp_seqno(&p_ptr->publ.phdr);
+	return msg_transp_seqno(&p_ptr->phdr);
 }
 
-static void port_incr_out_seqno(struct port *p_ptr)
+static void port_incr_out_seqno(struct tipc_port *p_ptr)
 {
-	struct tipc_msg *m = &p_ptr->publ.phdr;
+	struct tipc_msg *m = &p_ptr->phdr;
 
 	if (likely(!msg_routed(m)))
 		return;
@@ -94,7 +94,7 @@ int tipc_multicast(u32 ref, struct tipc_name_seq const *seq,
 	struct sk_buff *buf;
 	struct sk_buff *ibuf = NULL;
 	struct port_list dports = {0, NULL, };
-	struct port *oport = tipc_port_deref(ref);
+	struct tipc_port *oport = tipc_port_deref(ref);
 	int ext_targets;
 	int res;
 
@@ -103,7 +103,7 @@ int tipc_multicast(u32 ref, struct tipc_name_seq const *seq,
 
 	/* Create multicast message */
 
-	hdr = &oport->publ.phdr;
+	hdr = &oport->phdr;
 	msg_set_type(hdr, TIPC_MCAST_MSG);
 	msg_set_nametype(hdr, seq->type);
 	msg_set_namelower(hdr, seq->lower);
@@ -211,7 +211,7 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
 			void (*wakeup)(struct tipc_port *),
 			const u32 importance)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
 	u32 ref;
 
@@ -220,17 +220,17 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
 		warn("Port creation failed, no memory\n");
 		return NULL;
 	}
-	ref = tipc_ref_acquire(p_ptr, &p_ptr->publ.lock);
+	ref = tipc_ref_acquire(p_ptr, &p_ptr->lock);
 	if (!ref) {
 		warn("Port creation failed, reference table exhausted\n");
 		kfree(p_ptr);
 		return NULL;
 	}
 
-	p_ptr->publ.usr_handle = usr_handle;
-	p_ptr->publ.max_pkt = MAX_PKT_DEFAULT;
-	p_ptr->publ.ref = ref;
-	msg = &p_ptr->publ.phdr;
+	p_ptr->usr_handle = usr_handle;
+	p_ptr->max_pkt = MAX_PKT_DEFAULT;
+	p_ptr->ref = ref;
+	msg = &p_ptr->phdr;
 	tipc_msg_init(msg, importance, TIPC_NAMED_MSG, LONG_H_SIZE, 0);
 	msg_set_origport(msg, ref);
 	p_ptr->last_in_seqno = 41;
@@ -246,12 +246,12 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
 	INIT_LIST_HEAD(&p_ptr->port_list);
 	list_add_tail(&p_ptr->port_list, &ports);
 	spin_unlock_bh(&tipc_port_list_lock);
-	return &(p_ptr->publ);
+	return p_ptr;
 }
 
 int tipc_deleteport(u32 ref)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct sk_buff *buf = NULL;
 
 	tipc_withdraw(ref, 0, NULL);
@@ -263,7 +263,7 @@ int tipc_deleteport(u32 ref)
 	tipc_port_unlock(p_ptr);
 
 	k_cancel_timer(&p_ptr->timer);
-	if (p_ptr->publ.connected) {
+	if (p_ptr->connected) {
 		buf = port_build_peer_abort_msg(p_ptr, TIPC_ERR_NO_PORT);
 		tipc_nodesub_unsubscribe(&p_ptr->subscription);
 	}
@@ -279,14 +279,14 @@ int tipc_deleteport(u32 ref)
 	return 0;
 }
 
-static int port_unreliable(struct port *p_ptr)
+static int port_unreliable(struct tipc_port *p_ptr)
 {
-	return msg_src_droppable(&p_ptr->publ.phdr);
+	return msg_src_droppable(&p_ptr->phdr);
 }
 
 int tipc_portunreliable(u32 ref, unsigned int *isunreliable)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
@@ -298,24 +298,24 @@ int tipc_portunreliable(u32 ref, unsigned int *isunreliable)
 
 int tipc_set_portunreliable(u32 ref, unsigned int isunreliable)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return -EINVAL;
-	msg_set_src_droppable(&p_ptr->publ.phdr, (isunreliable != 0));
+	msg_set_src_droppable(&p_ptr->phdr, (isunreliable != 0));
 	tipc_port_unlock(p_ptr);
 	return 0;
 }
 
-static int port_unreturnable(struct port *p_ptr)
+static int port_unreturnable(struct tipc_port *p_ptr)
 {
-	return msg_dest_droppable(&p_ptr->publ.phdr);
+	return msg_dest_droppable(&p_ptr->phdr);
 }
 
 int tipc_portunreturnable(u32 ref, unsigned int *isunrejectable)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
@@ -327,12 +327,12 @@ int tipc_portunreturnable(u32 ref, unsigned int *isunrejectable)
 
 int tipc_set_portunreturnable(u32 ref, unsigned int isunrejectable)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return -EINVAL;
-	msg_set_dest_droppable(&p_ptr->publ.phdr, (isunrejectable != 0));
+	msg_set_dest_droppable(&p_ptr->phdr, (isunrejectable != 0));
 	tipc_port_unlock(p_ptr);
 	return 0;
 }
@@ -413,10 +413,10 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)
 	/* send self-abort message when rejecting on a connected port */
 	if (msg_connected(msg)) {
 		struct sk_buff *abuf = NULL;
-		struct port *p_ptr = tipc_port_lock(msg_destport(msg));
+		struct tipc_port *p_ptr = tipc_port_lock(msg_destport(msg));
 
 		if (p_ptr) {
-			if (p_ptr->publ.connected)
+			if (p_ptr->connected)
 				abuf = port_build_self_abort_msg(p_ptr, err);
 			tipc_port_unlock(p_ptr);
 		}
@@ -429,7 +429,7 @@ int tipc_reject_msg(struct sk_buff *buf, u32 err)
 	return data_sz;
 }
 
-int tipc_port_reject_sections(struct port *p_ptr, struct tipc_msg *hdr,
+int tipc_port_reject_sections(struct tipc_port *p_ptr, struct tipc_msg *hdr,
 			      struct iovec const *msg_sect, u32 num_sect,
 			      int err)
 {
@@ -446,13 +446,13 @@ int tipc_port_reject_sections(struct port *p_ptr, struct tipc_msg *hdr,
 
 static void port_timeout(unsigned long ref)
 {
-	struct port *p_ptr = tipc_port_lock(ref);
+	struct tipc_port *p_ptr = tipc_port_lock(ref);
 	struct sk_buff *buf = NULL;
 
 	if (!p_ptr)
 		return;
 
-	if (!p_ptr->publ.connected) {
+	if (!p_ptr->connected) {
 		tipc_port_unlock(p_ptr);
 		return;
 	}
@@ -463,7 +463,7 @@ static void port_timeout(unsigned long ref)
 	} else {
 		buf = port_build_proto_msg(port_peerport(p_ptr),
 					   port_peernode(p_ptr),
-					   p_ptr->publ.ref,
+					   p_ptr->ref,
 					   tipc_own_addr,
 					   CONN_MANAGER,
 					   CONN_PROBE,
@@ -481,7 +481,7 @@ static void port_timeout(unsigned long ref)
 
 static void port_handle_node_down(unsigned long ref)
 {
-	struct port *p_ptr = tipc_port_lock(ref);
+	struct tipc_port *p_ptr = tipc_port_lock(ref);
 	struct sk_buff *buf = NULL;
 
 	if (!p_ptr)
@@ -492,15 +492,15 @@ static void port_handle_node_down(unsigned long ref)
 }
 
 
-static struct sk_buff *port_build_self_abort_msg(struct port *p_ptr, u32 err)
+static struct sk_buff *port_build_self_abort_msg(struct tipc_port *p_ptr, u32 err)
 {
-	u32 imp = msg_importance(&p_ptr->publ.phdr);
+	u32 imp = msg_importance(&p_ptr->phdr);
 
-	if (!p_ptr->publ.connected)
+	if (!p_ptr->connected)
 		return NULL;
 	if (imp < TIPC_CRITICAL_IMPORTANCE)
 		imp++;
-	return port_build_proto_msg(p_ptr->publ.ref,
+	return port_build_proto_msg(p_ptr->ref,
 				    tipc_own_addr,
 				    port_peerport(p_ptr),
 				    port_peernode(p_ptr),
@@ -512,17 +512,17 @@ static struct sk_buff *port_build_self_abort_msg(struct port *p_ptr, u32 err)
 }
 
 
-static struct sk_buff *port_build_peer_abort_msg(struct port *p_ptr, u32 err)
+static struct sk_buff *port_build_peer_abort_msg(struct tipc_port *p_ptr, u32 err)
 {
-	u32 imp = msg_importance(&p_ptr->publ.phdr);
+	u32 imp = msg_importance(&p_ptr->phdr);
 
-	if (!p_ptr->publ.connected)
+	if (!p_ptr->connected)
 		return NULL;
 	if (imp < TIPC_CRITICAL_IMPORTANCE)
 		imp++;
 	return port_build_proto_msg(port_peerport(p_ptr),
 				    port_peernode(p_ptr),
-				    p_ptr->publ.ref,
+				    p_ptr->ref,
 				    tipc_own_addr,
 				    imp,
 				    TIPC_CONN_MSG,
@@ -534,31 +534,31 @@ static struct sk_buff *port_build_peer_abort_msg(struct port *p_ptr, u32 err)
 void tipc_port_recv_proto_msg(struct sk_buff *buf)
 {
 	struct tipc_msg *msg = buf_msg(buf);
-	struct port *p_ptr = tipc_port_lock(msg_destport(msg));
+	struct tipc_port *p_ptr = tipc_port_lock(msg_destport(msg));
 	u32 err = TIPC_OK;
 	struct sk_buff *r_buf = NULL;
 	struct sk_buff *abort_buf = NULL;
 
 	if (!p_ptr) {
 		err = TIPC_ERR_NO_PORT;
-	} else if (p_ptr->publ.connected) {
+	} else if (p_ptr->connected) {
 		if ((port_peernode(p_ptr) != msg_orignode(msg)) ||
 		    (port_peerport(p_ptr) != msg_origport(msg))) {
 			err = TIPC_ERR_NO_PORT;
 		} else if (msg_type(msg) == CONN_ACK) {
 			int wakeup = tipc_port_congested(p_ptr) &&
-				     p_ptr->publ.congested &&
+				     p_ptr->congested &&
 				     p_ptr->wakeup;
 			p_ptr->acked += msg_msgcnt(msg);
 			if (tipc_port_congested(p_ptr))
 				goto exit;
-			p_ptr->publ.congested = 0;
+			p_ptr->congested = 0;
 			if (!wakeup)
 				goto exit;
-			p_ptr->wakeup(&p_ptr->publ);
+			p_ptr->wakeup(p_ptr);
 			goto exit;
 		}
-	} else if (p_ptr->publ.published) {
+	} else if (p_ptr->published) {
 		err = TIPC_ERR_NO_PORT;
 	}
 	if (err) {
@@ -596,29 +596,29 @@ exit:
 	buf_discard(buf);
 }
 
-static void port_print(struct port *p_ptr, struct print_buf *buf, int full_id)
+static void port_print(struct tipc_port *p_ptr, struct print_buf *buf, int full_id)
 {
 	struct publication *publ;
 
 	if (full_id)
 		tipc_printf(buf, "<%u.%u.%u:%u>:",
 			    tipc_zone(tipc_own_addr), tipc_cluster(tipc_own_addr),
-			    tipc_node(tipc_own_addr), p_ptr->publ.ref);
+			    tipc_node(tipc_own_addr), p_ptr->ref);
 	else
-		tipc_printf(buf, "%-10u:", p_ptr->publ.ref);
+		tipc_printf(buf, "%-10u:", p_ptr->ref);
 
-	if (p_ptr->publ.connected) {
+	if (p_ptr->connected) {
 		u32 dport = port_peerport(p_ptr);
 		u32 destnode = port_peernode(p_ptr);
 
 		tipc_printf(buf, " connected to <%u.%u.%u:%u>",
 			    tipc_zone(destnode), tipc_cluster(destnode),
 			    tipc_node(destnode), dport);
-		if (p_ptr->publ.conn_type != 0)
+		if (p_ptr->conn_type != 0)
 			tipc_printf(buf, " via {%u,%u}",
-				    p_ptr->publ.conn_type,
-				    p_ptr->publ.conn_instance);
-	} else if (p_ptr->publ.published) {
+				    p_ptr->conn_type,
+				    p_ptr->conn_instance);
+	} else if (p_ptr->published) {
 		tipc_printf(buf, " bound to");
 		list_for_each_entry(publ, &p_ptr->publications, pport_list) {
 			if (publ->lower == publ->upper)
@@ -639,7 +639,7 @@ struct sk_buff *tipc_port_get_ports(void)
 	struct sk_buff *buf;
 	struct tlv_desc *rep_tlv;
 	struct print_buf pb;
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	int str_len;
 
 	buf = tipc_cfg_reply_alloc(TLV_SPACE(MAX_PORT_QUERY));
@@ -650,9 +650,9 @@ struct sk_buff *tipc_port_get_ports(void)
 	tipc_printbuf_init(&pb, TLV_DATA(rep_tlv), MAX_PORT_QUERY);
 	spin_lock_bh(&tipc_port_list_lock);
 	list_for_each_entry(p_ptr, &ports, port_list) {
-		spin_lock_bh(p_ptr->publ.lock);
+		spin_lock_bh(p_ptr->lock);
 		port_print(p_ptr, &pb, 0);
-		spin_unlock_bh(p_ptr->publ.lock);
+		spin_unlock_bh(p_ptr->lock);
 	}
 	spin_unlock_bh(&tipc_port_list_lock);
 	str_len = tipc_printbuf_validate(&pb);
@@ -665,12 +665,12 @@ struct sk_buff *tipc_port_get_ports(void)
 
 void tipc_port_reinit(void)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
 
 	spin_lock_bh(&tipc_port_list_lock);
 	list_for_each_entry(p_ptr, &ports, port_list) {
-		msg = &p_ptr->publ.phdr;
+		msg = &p_ptr->phdr;
 		if (msg_orignode(msg) == tipc_own_addr)
 			break;
 		msg_set_prevnode(msg, tipc_own_addr);
@@ -695,7 +695,7 @@ static void port_dispatcher_sigh(void *dummy)
 	spin_unlock_bh(&queue_lock);
 
 	while (buf) {
-		struct port *p_ptr;
+		struct tipc_port *p_ptr;
 		struct user_port *up_ptr;
 		struct tipc_portid orig;
 		struct tipc_name_seq dseq;
@@ -720,8 +720,8 @@ static void port_dispatcher_sigh(void *dummy)
 		orig.node = msg_orignode(msg);
 		up_ptr = p_ptr->user_port;
 		usr_handle = up_ptr->usr_handle;
-		connected = p_ptr->publ.connected;
-		published = p_ptr->publ.published;
+		connected = p_ptr->connected;
+		published = p_ptr->published;
 
 		if (unlikely(msg_errcode(msg)))
 			goto err;
@@ -742,10 +742,10 @@ static void port_dispatcher_sigh(void *dummy)
 				} else if ((msg_origport(msg) != peer_port) ||
 					   (msg_orignode(msg) != peer_node))
 					goto reject;
-				if (unlikely(++p_ptr->publ.conn_unacked >=
+				if (unlikely(++p_ptr->conn_unacked >=
 					     TIPC_FLOW_CONTROL_WIN))
 					tipc_acknowledge(dref,
-							 p_ptr->publ.conn_unacked);
+							 p_ptr->conn_unacked);
 				skb_pull(buf, msg_hdr_sz(msg));
 				cb(usr_handle, dref, &buf, msg_data(msg),
 				   msg_data_sz(msg));
@@ -872,7 +872,7 @@ static u32 port_dispatcher(struct tipc_port *dummy, struct sk_buff *buf)
 
 static void port_wakeup_sh(unsigned long ref)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct user_port *up_ptr;
 	tipc_continue_event cb = NULL;
 	void *uh = NULL;
@@ -898,14 +898,14 @@ static void port_wakeup(struct tipc_port *p_ptr)
 
 void tipc_acknowledge(u32 ref, u32 ack)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct sk_buff *buf = NULL;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return;
-	if (p_ptr->publ.connected) {
-		p_ptr->publ.conn_unacked -= ack;
+	if (p_ptr->connected) {
+		p_ptr->conn_unacked -= ack;
 		buf = port_build_proto_msg(port_peerport(p_ptr),
 					   port_peernode(p_ptr),
 					   ref,
@@ -936,14 +936,14 @@ int tipc_createport(void *usr_handle,
 		    u32 *portref)
 {
 	struct user_port *up_ptr;
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 
 	up_ptr = kmalloc(sizeof(*up_ptr), GFP_ATOMIC);
 	if (!up_ptr) {
 		warn("Port creation failed, no memory\n");
 		return -ENOMEM;
 	}
-	p_ptr = (struct port *)tipc_createport_raw(NULL, port_dispatcher,
+	p_ptr = (struct tipc_port *)tipc_createport_raw(NULL, port_dispatcher,
 						   port_wakeup, importance);
 	if (!p_ptr) {
 		kfree(up_ptr);
@@ -952,7 +952,7 @@ int tipc_createport(void *usr_handle,
 
 	p_ptr->user_port = up_ptr;
 	up_ptr->usr_handle = usr_handle;
-	up_ptr->ref = p_ptr->publ.ref;
+	up_ptr->ref = p_ptr->ref;
 	up_ptr->err_cb = error_cb;
 	up_ptr->named_err_cb = named_error_cb;
 	up_ptr->conn_err_cb = conn_error_cb;
@@ -960,26 +960,26 @@ int tipc_createport(void *usr_handle,
 	up_ptr->named_msg_cb = named_msg_cb;
 	up_ptr->conn_msg_cb = conn_msg_cb;
 	up_ptr->continue_event_cb = continue_event_cb;
-	*portref = p_ptr->publ.ref;
+	*portref = p_ptr->ref;
 	tipc_port_unlock(p_ptr);
 	return 0;
 }
 
 int tipc_portimportance(u32 ref, unsigned int *importance)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return -EINVAL;
-	*importance = (unsigned int)msg_importance(&p_ptr->publ.phdr);
+	*importance = (unsigned int)msg_importance(&p_ptr->phdr);
 	tipc_port_unlock(p_ptr);
 	return 0;
 }
 
 int tipc_set_portimportance(u32 ref, unsigned int imp)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 
 	if (imp > TIPC_CRITICAL_IMPORTANCE)
 		return -EINVAL;
@@ -987,7 +987,7 @@ int tipc_set_portimportance(u32 ref, unsigned int imp)
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return -EINVAL;
-	msg_set_importance(&p_ptr->publ.phdr, (u32)imp);
+	msg_set_importance(&p_ptr->phdr, (u32)imp);
 	tipc_port_unlock(p_ptr);
 	return 0;
 }
@@ -995,7 +995,7 @@ int tipc_set_portimportance(u32 ref, unsigned int imp)
 
 int tipc_publish(u32 ref, unsigned int scope, struct tipc_name_seq const *seq)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct publication *publ;
 	u32 key;
 	int res = -EINVAL;
@@ -1004,7 +1004,7 @@ int tipc_publish(u32 ref, unsigned int scope, struct tipc_name_seq const *seq)
 	if (!p_ptr)
 		return -EINVAL;
 
-	if (p_ptr->publ.connected)
+	if (p_ptr->connected)
 		goto exit;
 	if (seq->lower > seq->upper)
 		goto exit;
@@ -1016,11 +1016,11 @@ int tipc_publish(u32 ref, unsigned int scope, struct tipc_name_seq const *seq)
 		goto exit;
 	}
 	publ = tipc_nametbl_publish(seq->type, seq->lower, seq->upper,
-				    scope, p_ptr->publ.ref, key);
+				    scope, p_ptr->ref, key);
 	if (publ) {
 		list_add(&publ->pport_list, &p_ptr->publications);
 		p_ptr->pub_count++;
-		p_ptr->publ.published = 1;
+		p_ptr->published = 1;
 		res = 0;
 	}
 exit:
@@ -1030,7 +1030,7 @@ exit:
 
 int tipc_withdraw(u32 ref, unsigned int scope, struct tipc_name_seq const *seq)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct publication *publ;
 	struct publication *tpubl;
 	int res = -EINVAL;
@@ -1063,37 +1063,37 @@ int tipc_withdraw(u32 ref, unsigned int scope, struct tipc_name_seq const *seq)
 		}
 	}
 	if (list_empty(&p_ptr->publications))
-		p_ptr->publ.published = 0;
+		p_ptr->published = 0;
 	tipc_port_unlock(p_ptr);
 	return res;
 }
 
 int tipc_connect2port(u32 ref, struct tipc_portid const *peer)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
 	int res = -EINVAL;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return -EINVAL;
-	if (p_ptr->publ.published || p_ptr->publ.connected)
+	if (p_ptr->published || p_ptr->connected)
 		goto exit;
 	if (!peer->ref)
 		goto exit;
 
-	msg = &p_ptr->publ.phdr;
+	msg = &p_ptr->phdr;
 	msg_set_destnode(msg, peer->node);
 	msg_set_destport(msg, peer->ref);
 	msg_set_orignode(msg, tipc_own_addr);
-	msg_set_origport(msg, p_ptr->publ.ref);
+	msg_set_origport(msg, p_ptr->ref);
 	msg_set_transp_seqno(msg, 42);
 	msg_set_type(msg, TIPC_CONN_MSG);
 	msg_set_hdr_sz(msg, SHORT_H_SIZE);
 
 	p_ptr->probing_interval = PROBING_INTERVAL;
 	p_ptr->probing_state = CONFIRMED;
-	p_ptr->publ.connected = 1;
+	p_ptr->connected = 1;
 	k_start_timer(&p_ptr->timer, p_ptr->probing_interval);
 
 	tipc_nodesub_subscribe(&p_ptr->subscription, peer->node,
@@ -1102,7 +1102,7 @@ int tipc_connect2port(u32 ref, struct tipc_portid const *peer)
 	res = 0;
 exit:
 	tipc_port_unlock(p_ptr);
-	p_ptr->publ.max_pkt = tipc_link_get_max_pkt(peer->node, ref);
+	p_ptr->max_pkt = tipc_link_get_max_pkt(peer->node, ref);
 	return res;
 }
 
@@ -1120,7 +1120,7 @@ int tipc_disconnect_port(struct tipc_port *tp_ptr)
 		tp_ptr->connected = 0;
 		/* let timer expire on it's own to avoid deadlock! */
 		tipc_nodesub_unsubscribe(
-			&((struct port *)tp_ptr)->subscription);
+			&((struct tipc_port *)tp_ptr)->subscription);
 		res = 0;
 	} else {
 		res = -ENOTCONN;
@@ -1135,7 +1135,7 @@ int tipc_disconnect_port(struct tipc_port *tp_ptr)
 
 int tipc_disconnect(u32 ref)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	int res;
 
 	p_ptr = tipc_port_lock(ref);
@@ -1151,15 +1151,15 @@ int tipc_disconnect(u32 ref)
  */
 int tipc_shutdown(u32 ref)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct sk_buff *buf = NULL;
 
 	p_ptr = tipc_port_lock(ref);
 	if (!p_ptr)
 		return -EINVAL;
 
-	if (p_ptr->publ.connected) {
-		u32 imp = msg_importance(&p_ptr->publ.phdr);
+	if (p_ptr->connected) {
+		u32 imp = msg_importance(&p_ptr->phdr);
 		if (imp < TIPC_CRITICAL_IMPORTANCE)
 			imp++;
 		buf = port_build_proto_msg(port_peerport(p_ptr),
@@ -1182,13 +1182,13 @@ int tipc_shutdown(u32 ref)
  *                        message for this node.
  */
 
-static int tipc_port_recv_sections(struct port *sender, unsigned int num_sect,
+static int tipc_port_recv_sections(struct tipc_port *sender, unsigned int num_sect,
 				   struct iovec const *msg_sect)
 {
 	struct sk_buff *buf;
 	int res;
 
-	res = tipc_msg_build(&sender->publ.phdr, msg_sect, num_sect,
+	res = tipc_msg_build(&sender->phdr, msg_sect, num_sect,
 			MAX_MSG_SIZE, !sender->user_port, &buf);
 	if (likely(buf))
 		tipc_port_recv_msg(buf);
@@ -1201,15 +1201,15 @@ static int tipc_port_recv_sections(struct port *sender, unsigned int num_sect,
 
 int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	u32 destnode;
 	int res;
 
 	p_ptr = tipc_port_deref(ref);
-	if (!p_ptr || !p_ptr->publ.connected)
+	if (!p_ptr || !p_ptr->connected)
 		return -EINVAL;
 
-	p_ptr->publ.congested = 1;
+	p_ptr->congested = 1;
 	if (!tipc_port_congested(p_ptr)) {
 		destnode = port_peernode(p_ptr);
 		if (likely(destnode != tipc_own_addr))
@@ -1220,13 +1220,13 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect)
 
 		if (likely(res != -ELINKCONG)) {
 			port_incr_out_seqno(p_ptr);
-			p_ptr->publ.congested = 0;
+			p_ptr->congested = 0;
 			p_ptr->sent++;
 			return res;
 		}
 	}
 	if (port_unreliable(p_ptr)) {
-		p_ptr->publ.congested = 0;
+		p_ptr->congested = 0;
 		/* Just calculate msg length and return */
 		return tipc_msg_calc_data_size(msg_sect, num_sect);
 	}
@@ -1240,17 +1240,17 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect)
 int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain,
 	   unsigned int num_sect, struct iovec const *msg_sect)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
 	u32 destnode = domain;
 	u32 destport;
 	int res;
 
 	p_ptr = tipc_port_deref(ref);
-	if (!p_ptr || p_ptr->publ.connected)
+	if (!p_ptr || p_ptr->connected)
 		return -EINVAL;
 
-	msg = &p_ptr->publ.phdr;
+	msg = &p_ptr->phdr;
 	msg_set_type(msg, TIPC_NAMED_MSG);
 	msg_set_orignode(msg, tipc_own_addr);
 	msg_set_origport(msg, ref);
@@ -1287,15 +1287,15 @@ int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain,
 int tipc_send2port(u32 ref, struct tipc_portid const *dest,
 	   unsigned int num_sect, struct iovec const *msg_sect)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
 	int res;
 
 	p_ptr = tipc_port_deref(ref);
-	if (!p_ptr || p_ptr->publ.connected)
+	if (!p_ptr || p_ptr->connected)
 		return -EINVAL;
 
-	msg = &p_ptr->publ.phdr;
+	msg = &p_ptr->phdr;
 	msg_set_type(msg, TIPC_DIRECT_MSG);
 	msg_set_orignode(msg, tipc_own_addr);
 	msg_set_origport(msg, ref);
@@ -1322,15 +1322,15 @@ int tipc_send2port(u32 ref, struct tipc_portid const *dest,
 int tipc_send_buf2port(u32 ref, struct tipc_portid const *dest,
 	       struct sk_buff *buf, unsigned int dsz)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
 	int res;
 
-	p_ptr = (struct port *)tipc_ref_deref(ref);
-	if (!p_ptr || p_ptr->publ.connected)
+	p_ptr = (struct tipc_port *)tipc_ref_deref(ref);
+	if (!p_ptr || p_ptr->connected)
 		return -EINVAL;
 
-	msg = &p_ptr->publ.phdr;
+	msg = &p_ptr->phdr;
 	msg_set_type(msg, TIPC_DIRECT_MSG);
 	msg_set_orignode(msg, tipc_own_addr);
 	msg_set_origport(msg, ref);
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 8e84b98..f8722af 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -2,7 +2,7 @@
  * net/tipc/port.h: Include file for TIPC port code
  *
  * Copyright (c) 1994-2007, Ericsson AB
- * Copyright (c) 2004-2007, Wind River Systems
+ * Copyright (c) 2004-2007, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -95,7 +95,7 @@ struct user_port {
 };
 
 /**
- * struct tipc_port - TIPC port info available to socket API
+ * struct tipc_port - TIPC port structure
  * @usr_handle: pointer to additional user-defined information about port
  * @lock: pointer to spinlock for controlling access to port
  * @connected: non-zero if port is currently connected to a peer port
@@ -107,24 +107,6 @@ struct user_port {
  * @max_pkt: maximum packet size "hint" used when building messages sent by port
  * @ref: unique reference to port in TIPC object registry
  * @phdr: preformatted message header used when sending messages
- */
-struct tipc_port {
-	void *usr_handle;
-	spinlock_t *lock;
-	int connected;
-	u32 conn_type;
-	u32 conn_instance;
-	u32 conn_unacked;
-	int published;
-	u32 congested;
-	u32 max_pkt;
-	u32 ref;
-	struct tipc_msg phdr;
-};
-
-/**
- * struct port - TIPC port structure
- * @publ: TIPC port info available to privileged users
  * @port_list: adjacent ports in TIPC's global list of ports
  * @dispatcher: ptr to routine which handles received messages
  * @wakeup: ptr to routine to call when port is no longer congested
@@ -141,9 +123,18 @@ struct tipc_port {
  * @timer_ref:
  * @subscription: "node down" subscription used to terminate failed connections
  */
-
-struct port {
-	struct tipc_port publ;
+struct tipc_port {
+	void *usr_handle;
+	spinlock_t *lock;
+	int connected;
+	u32 conn_type;
+	u32 conn_instance;
+	u32 conn_unacked;
+	int published;
+	u32 congested;
+	u32 max_pkt;
+	u32 ref;
+	struct tipc_msg phdr;
 	struct list_head port_list;
 	u32 (*dispatcher)(struct tipc_port *, struct sk_buff *);
 	void (*wakeup)(struct tipc_port *);
@@ -230,7 +221,7 @@ int tipc_send_buf2port(u32 portref, struct tipc_portid const *dest,
 int tipc_multicast(u32 portref, struct tipc_name_seq const *seq,
 		unsigned int section_count, struct iovec const *msg);
 
-int tipc_port_reject_sections(struct port *p_ptr, struct tipc_msg *hdr,
+int tipc_port_reject_sections(struct tipc_port *p_ptr, struct tipc_msg *hdr,
 			      struct iovec const *msg_sect, u32 num_sect,
 			      int err);
 struct sk_buff *tipc_port_get_ports(void);
@@ -242,9 +233,9 @@ void tipc_port_reinit(void);
  * tipc_port_lock - lock port instance referred to and return its pointer
  */
 
-static inline struct port *tipc_port_lock(u32 ref)
+static inline struct tipc_port *tipc_port_lock(u32 ref)
 {
-	return (struct port *)tipc_ref_lock(ref);
+	return (struct tipc_port *)tipc_ref_lock(ref);
 }
 
 /**
@@ -253,27 +244,27 @@ static inline struct port *tipc_port_lock(u32 ref)
  * Can use pointer instead of tipc_ref_unlock() since port is already locked.
  */
 
-static inline void tipc_port_unlock(struct port *p_ptr)
+static inline void tipc_port_unlock(struct tipc_port *p_ptr)
 {
-	spin_unlock_bh(p_ptr->publ.lock);
+	spin_unlock_bh(p_ptr->lock);
 }
 
-static inline struct port *tipc_port_deref(u32 ref)
+static inline struct tipc_port *tipc_port_deref(u32 ref)
 {
-	return (struct port *)tipc_ref_deref(ref);
+	return (struct tipc_port *)tipc_ref_deref(ref);
 }
 
-static inline u32 tipc_peer_port(struct port *p_ptr)
+static inline u32 tipc_peer_port(struct tipc_port *p_ptr)
 {
-	return msg_destport(&p_ptr->publ.phdr);
+	return msg_destport(&p_ptr->phdr);
 }
 
-static inline u32 tipc_peer_node(struct port *p_ptr)
+static inline u32 tipc_peer_node(struct tipc_port *p_ptr)
 {
-	return msg_destnode(&p_ptr->publ.phdr);
+	return msg_destnode(&p_ptr->phdr);
 }
 
-static inline int tipc_port_congested(struct port *p_ptr)
+static inline int tipc_port_congested(struct tipc_port *p_ptr)
 {
 	return (p_ptr->sent - p_ptr->acked) >= (TIPC_FLOW_CONTROL_WIN * 2);
 }
@@ -284,7 +275,7 @@ static inline int tipc_port_congested(struct port *p_ptr)
 
 static inline int tipc_port_recv_msg(struct sk_buff *buf)
 {
-	struct port *p_ptr;
+	struct tipc_port *p_ptr;
 	struct tipc_msg *msg = buf_msg(buf);
 	u32 destport = msg_destport(msg);
 	u32 dsz = msg_data_sz(msg);
@@ -299,7 +290,7 @@ static inline int tipc_port_recv_msg(struct sk_buff *buf)
 	/* validate destination & pass to port, otherwise reject message */
 	p_ptr = tipc_port_lock(destport);
 	if (likely(p_ptr)) {
-		if (likely(p_ptr->publ.connected)) {
+		if (likely(p_ptr->connected)) {
 			if ((unlikely(msg_origport(msg) != tipc_peer_port(p_ptr))) ||
 			    (unlikely(msg_orignode(msg) != tipc_peer_node(p_ptr))) ||
 			    (unlikely(!msg_connected(msg)))) {
@@ -308,7 +299,7 @@ static inline int tipc_port_recv_msg(struct sk_buff *buf)
 				goto reject;
 			}
 		}
-		err = p_ptr->dispatcher(&p_ptr->publ, buf);
+		err = p_ptr->dispatcher(p_ptr, buf);
 		tipc_port_unlock(p_ptr);
 		if (likely(!err))
 			return dsz;
diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index ca04479..98ee50b 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -2,7 +2,7 @@
  * net/tipc/subscr.c: TIPC network topology service
  *
  * Copyright (c) 2000-2006, Ericsson AB
- * Copyright (c) 2005-2007, Wind River Systems
+ * Copyright (c) 2005-2007, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -160,7 +160,7 @@ void tipc_subscr_report_overlap(struct subscription *sub,
 
 static void subscr_timeout(struct subscription *sub)
 {
-	struct port *server_port;
+	struct tipc_port *server_port;
 
 	/* Validate server port reference (in case subscriber is terminating) */
 
@@ -508,7 +508,7 @@ static void subscr_named_msg_event(void *usr_handle,
 
 	/* Lock server port (& save lock address for future use) */
 
-	subscriber->lock = tipc_port_lock(subscriber->port_ref)->publ.lock;
+	subscriber->lock = tipc_port_lock(subscriber->port_ref)->lock;
 
 	/* Add subscriber to topology server's subscriber list */
 
-- 
1.7.3.3

[PATCH net-next 02/17] tipc: Combine bearer structure with tipc_bearer structure

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Combines two distinct structures containing information about a TIPC bearer
into a single structure. The structures were previously kept separate so
that public information about a bearer could be made available to plug-in
media types using TIPC's native API, while the remaining information was
kept private for use by TIPC itself. However, now that the native API has
been removed there is no longer any need for this arrangement.

Since one of the structures was already embedded within the other, the
change largely involves replacing instances of "publ.foo" with "foo".
The changes do not otherwise alter the operation of TIPC bearers.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/bcast.c    |   28 +++++++-------
 net/tipc/bearer.c   |   98 +++++++++++++++++++++++++--------------------------
 net/tipc/bearer.h   |   67 ++++++++++++++++-------------------
 net/tipc/discover.c |   26 +++++++-------
 net/tipc/discover.h |    6 ++--
 net/tipc/link.c     |   13 +++----
 net/tipc/link.h     |    4 +-
 net/tipc/node.c     |    4 +-
 8 files changed, 119 insertions(+), 127 deletions(-)

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 70ab5ef..b4d659d 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2004-2006, Ericsson AB
  * Copyright (c) 2004, Intel Corporation.
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -61,8 +61,8 @@
  */
 
 struct bcbearer_pair {
-	struct bearer *primary;
-	struct bearer *secondary;
+	struct tipc_bearer *primary;
+	struct tipc_bearer *secondary;
 };
 
 /**
@@ -81,7 +81,7 @@ struct bcbearer_pair {
  */
 
 struct bcbearer {
-	struct bearer bearer;
+	struct tipc_bearer bearer;
 	struct media media;
 	struct bcbearer_pair bpairs[MAX_BEARERS];
 	struct bcbearer_pair bpairs_temp[TIPC_MAX_LINK_PRI + 1];
@@ -574,8 +574,8 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
 	bcbearer->remains = tipc_bcast_nmap;
 
 	for (bp_index = 0; bp_index < MAX_BEARERS; bp_index++) {
-		struct bearer *p = bcbearer->bpairs[bp_index].primary;
-		struct bearer *s = bcbearer->bpairs[bp_index].secondary;
+		struct tipc_bearer *p = bcbearer->bpairs[bp_index].primary;
+		struct tipc_bearer *s = bcbearer->bpairs[bp_index].secondary;
 
 		if (!p)
 			break;	/* no more bearers to try */
@@ -584,11 +584,11 @@ static int tipc_bcbearer_send(struct sk_buff *buf,
 		if (bcbearer->remains_new.count == bcbearer->remains.count)
 			continue;	/* bearer pair doesn't add anything */
 
-		if (p->publ.blocked ||
-		    p->media->send_msg(buf, &p->publ, &p->media->bcast_addr)) {
+		if (p->blocked ||
+		    p->media->send_msg(buf, p, &p->media->bcast_addr)) {
 			/* unable to send on primary bearer */
-			if (!s || s->publ.blocked ||
-			    s->media->send_msg(buf, &s->publ,
+			if (!s || s->blocked ||
+			    s->media->send_msg(buf, s,
 					       &s->media->bcast_addr)) {
 				/* unable to send on either bearer */
 				continue;
@@ -633,7 +633,7 @@ void tipc_bcbearer_sort(void)
 	memset(bp_temp, 0, sizeof(bcbearer->bpairs_temp));
 
 	for (b_index = 0; b_index < MAX_BEARERS; b_index++) {
-		struct bearer *b = &tipc_bearers[b_index];
+		struct tipc_bearer *b = &tipc_bearers[b_index];
 
 		if (!b->active || !b->nodes.count)
 			continue;
@@ -682,12 +682,12 @@ void tipc_bcbearer_sort(void)
 
 void tipc_bcbearer_push(void)
 {
-	struct bearer *b_ptr;
+	struct tipc_bearer *b_ptr;
 
 	spin_lock_bh(&bc_lock);
 	b_ptr = &bcbearer->bearer;
-	if (b_ptr->publ.blocked) {
-		b_ptr->publ.blocked = 0;
+	if (b_ptr->blocked) {
+		b_ptr->blocked = 0;
 		tipc_bearer_lock_push(b_ptr);
 	}
 	spin_unlock_bh(&bc_lock);
diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 837b7a4..9e2ff0e 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -2,7 +2,7 @@
  * net/tipc/bearer.c: TIPC bearer code
  *
  * Copyright (c) 1996-2006, Ericsson AB
- * Copyright (c) 2004-2006, Wind River Systems
+ * Copyright (c) 2004-2006, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -44,7 +44,7 @@
 static struct media media_list[MAX_MEDIA];
 static u32 media_count;
 
-struct bearer tipc_bearers[MAX_BEARERS];
+struct tipc_bearer tipc_bearers[MAX_BEARERS];
 
 /**
  * media_name_valid - validate media name
@@ -278,13 +278,13 @@ static int bearer_name_validate(const char *name,
  * bearer_find - locates bearer object with matching bearer name
  */
 
-static struct bearer *bearer_find(const char *name)
+static struct tipc_bearer *bearer_find(const char *name)
 {
-	struct bearer *b_ptr;
+	struct tipc_bearer *b_ptr;
 	u32 i;
 
 	for (i = 0, b_ptr = tipc_bearers; i < MAX_BEARERS; i++, b_ptr++) {
-		if (b_ptr->active && (!strcmp(b_ptr->publ.name, name)))
+		if (b_ptr->active && (!strcmp(b_ptr->name, name)))
 			return b_ptr;
 	}
 	return NULL;
@@ -294,16 +294,16 @@ static struct bearer *bearer_find(const char *name)
  * tipc_bearer_find_interface - locates bearer object with matching interface name
  */
 
-struct bearer *tipc_bearer_find_interface(const char *if_name)
+struct tipc_bearer *tipc_bearer_find_interface(const char *if_name)
 {
-	struct bearer *b_ptr;
+	struct tipc_bearer *b_ptr;
 	char *b_if_name;
 	u32 i;
 
 	for (i = 0, b_ptr = tipc_bearers; i < MAX_BEARERS; i++, b_ptr++) {
 		if (!b_ptr->active)
 			continue;
-		b_if_name = strchr(b_ptr->publ.name, ':') + 1;
+		b_if_name = strchr(b_ptr->name, ':') + 1;
 		if (!strcmp(b_if_name, if_name))
 			return b_ptr;
 	}
@@ -318,7 +318,7 @@ struct sk_buff *tipc_bearer_get_names(void)
 {
 	struct sk_buff *buf;
 	struct media *m_ptr;
-	struct bearer *b_ptr;
+	struct tipc_bearer *b_ptr;
 	int i, j;
 
 	buf = tipc_cfg_reply_alloc(MAX_BEARERS * TLV_SPACE(TIPC_MAX_BEARER_NAME));
@@ -331,8 +331,8 @@ struct sk_buff *tipc_bearer_get_names(void)
 			b_ptr = &tipc_bearers[j];
 			if (b_ptr->active && (b_ptr->media == m_ptr)) {
 				tipc_cfg_append_tlv(buf, TIPC_TLV_BEARER_NAME,
-						    b_ptr->publ.name,
-						    strlen(b_ptr->publ.name) + 1);
+						    b_ptr->name,
+						    strlen(b_ptr->name) + 1);
 			}
 		}
 	}
@@ -340,14 +340,14 @@ struct sk_buff *tipc_bearer_get_names(void)
 	return buf;
 }
 
-void tipc_bearer_add_dest(struct bearer *b_ptr, u32 dest)
+void tipc_bearer_add_dest(struct tipc_bearer *b_ptr, u32 dest)
 {
 	tipc_nmap_add(&b_ptr->nodes, dest);
 	tipc_disc_update_link_req(b_ptr->link_req);
 	tipc_bcbearer_sort();
 }
 
-void tipc_bearer_remove_dest(struct bearer *b_ptr, u32 dest)
+void tipc_bearer_remove_dest(struct tipc_bearer *b_ptr, u32 dest)
 {
 	tipc_nmap_remove(&b_ptr->nodes, dest);
 	tipc_disc_update_link_req(b_ptr->link_req);
@@ -362,12 +362,12 @@ void tipc_bearer_remove_dest(struct bearer *b_ptr, u32 dest)
  * bearer.lock must be taken before calling
  * Returns binary true(1) ore false(0)
  */
-static int bearer_push(struct bearer *b_ptr)
+static int bearer_push(struct tipc_bearer *b_ptr)
 {
 	u32 res = 0;
 	struct link *ln, *tln;
 
-	if (b_ptr->publ.blocked)
+	if (b_ptr->blocked)
 		return 0;
 
 	while (!list_empty(&b_ptr->cong_links) && (res != PUSH_FAILED)) {
@@ -382,13 +382,13 @@ static int bearer_push(struct bearer *b_ptr)
 	return list_empty(&b_ptr->cong_links);
 }
 
-void tipc_bearer_lock_push(struct bearer *b_ptr)
+void tipc_bearer_lock_push(struct tipc_bearer *b_ptr)
 {
 	int res;
 
-	spin_lock_bh(&b_ptr->publ.lock);
+	spin_lock_bh(&b_ptr->lock);
 	res = bearer_push(b_ptr);
-	spin_unlock_bh(&b_ptr->publ.lock);
+	spin_unlock_bh(&b_ptr->lock);
 	if (res)
 		tipc_bcbearer_push();
 }
@@ -398,16 +398,14 @@ void tipc_bearer_lock_push(struct bearer *b_ptr)
  * Interrupt enabling new requests after bearer congestion or blocking:
  * See bearer_send().
  */
-void tipc_continue(struct tipc_bearer *tb_ptr)
+void tipc_continue(struct tipc_bearer *b_ptr)
 {
-	struct bearer *b_ptr = (struct bearer *)tb_ptr;
-
-	spin_lock_bh(&b_ptr->publ.lock);
+	spin_lock_bh(&b_ptr->lock);
 	b_ptr->continue_count++;
 	if (!list_empty(&b_ptr->cong_links))
 		tipc_k_signal((Handler)tipc_bearer_lock_push, (unsigned long)b_ptr);
-	b_ptr->publ.blocked = 0;
-	spin_unlock_bh(&b_ptr->publ.lock);
+	b_ptr->blocked = 0;
+	spin_unlock_bh(&b_ptr->lock);
 }
 
 /*
@@ -418,7 +416,7 @@ void tipc_continue(struct tipc_bearer *tb_ptr)
  * bearer.lock is busy
  */
 
-static void tipc_bearer_schedule_unlocked(struct bearer *b_ptr, struct link *l_ptr)
+static void tipc_bearer_schedule_unlocked(struct tipc_bearer *b_ptr, struct link *l_ptr)
 {
 	list_move_tail(&l_ptr->link_list, &b_ptr->cong_links);
 }
@@ -431,11 +429,11 @@ static void tipc_bearer_schedule_unlocked(struct bearer *b_ptr, struct link *l_p
  * bearer.lock is free
  */
 
-void tipc_bearer_schedule(struct bearer *b_ptr, struct link *l_ptr)
+void tipc_bearer_schedule(struct tipc_bearer *b_ptr, struct link *l_ptr)
 {
-	spin_lock_bh(&b_ptr->publ.lock);
+	spin_lock_bh(&b_ptr->lock);
 	tipc_bearer_schedule_unlocked(b_ptr, l_ptr);
-	spin_unlock_bh(&b_ptr->publ.lock);
+	spin_unlock_bh(&b_ptr->lock);
 }
 
 
@@ -444,18 +442,18 @@ void tipc_bearer_schedule(struct bearer *b_ptr, struct link *l_ptr)
  * and if there is, try to resolve it before returning.
  * 'tipc_net_lock' is read_locked when this function is called
  */
-int tipc_bearer_resolve_congestion(struct bearer *b_ptr, struct link *l_ptr)
+int tipc_bearer_resolve_congestion(struct tipc_bearer *b_ptr, struct link *l_ptr)
 {
 	int res = 1;
 
 	if (list_empty(&b_ptr->cong_links))
 		return 1;
-	spin_lock_bh(&b_ptr->publ.lock);
+	spin_lock_bh(&b_ptr->lock);
 	if (!bearer_push(b_ptr)) {
 		tipc_bearer_schedule_unlocked(b_ptr, l_ptr);
 		res = 0;
 	}
-	spin_unlock_bh(&b_ptr->publ.lock);
+	spin_unlock_bh(&b_ptr->lock);
 	return res;
 }
 
@@ -463,9 +461,9 @@ int tipc_bearer_resolve_congestion(struct bearer *b_ptr, struct link *l_ptr)
  * tipc_bearer_congested - determines if bearer is currently congested
  */
 
-int tipc_bearer_congested(struct bearer *b_ptr, struct link *l_ptr)
+int tipc_bearer_congested(struct tipc_bearer *b_ptr, struct link *l_ptr)
 {
-	if (unlikely(b_ptr->publ.blocked))
+	if (unlikely(b_ptr->blocked))
 		return 1;
 	if (likely(list_empty(&b_ptr->cong_links)))
 		return 0;
@@ -478,7 +476,7 @@ int tipc_bearer_congested(struct bearer *b_ptr, struct link *l_ptr)
 
 int tipc_enable_bearer(const char *name, u32 bcast_scope, u32 priority)
 {
-	struct bearer *b_ptr;
+	struct tipc_bearer *b_ptr;
 	struct media *m_ptr;
 	struct bearer_name b_name;
 	char addr_string[16];
@@ -528,7 +526,7 @@ restart:
 			bearer_id = i;
 			continue;
 		}
-		if (!strcmp(name, tipc_bearers[i].publ.name)) {
+		if (!strcmp(name, tipc_bearers[i].name)) {
 			warn("Bearer <%s> rejected, already enabled\n", name);
 			goto failed;
 		}
@@ -551,8 +549,8 @@ restart:
 	}
 
 	b_ptr = &tipc_bearers[bearer_id];
-	strcpy(b_ptr->publ.name, name);
-	res = m_ptr->enable_bearer(&b_ptr->publ);
+	strcpy(b_ptr->name, name);
+	res = m_ptr->enable_bearer(b_ptr);
 	if (res) {
 		warn("Bearer <%s> rejected, enable failure (%d)\n", name, -res);
 		goto failed;
@@ -570,7 +568,7 @@ restart:
 		b_ptr->link_req = tipc_disc_init_link_req(b_ptr, &m_ptr->bcast_addr,
 							  bcast_scope, 2);
 	}
-	spin_lock_init(&b_ptr->publ.lock);
+	spin_lock_init(&b_ptr->lock);
 	write_unlock_bh(&tipc_net_lock);
 	info("Enabled bearer <%s>, discovery domain %s, priority %u\n",
 	     name, tipc_addr_string_fill(addr_string, bcast_scope), priority);
@@ -587,7 +585,7 @@ failed:
 
 int tipc_block_bearer(const char *name)
 {
-	struct bearer *b_ptr = NULL;
+	struct tipc_bearer *b_ptr = NULL;
 	struct link *l_ptr;
 	struct link *temp_l_ptr;
 
@@ -600,8 +598,8 @@ int tipc_block_bearer(const char *name)
 	}
 
 	info("Blocking bearer <%s>\n", name);
-	spin_lock_bh(&b_ptr->publ.lock);
-	b_ptr->publ.blocked = 1;
+	spin_lock_bh(&b_ptr->lock);
+	b_ptr->blocked = 1;
 	list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
 		struct tipc_node *n_ptr = l_ptr->owner;
 
@@ -609,7 +607,7 @@ int tipc_block_bearer(const char *name)
 		tipc_link_reset(l_ptr);
 		spin_unlock_bh(&n_ptr->lock);
 	}
-	spin_unlock_bh(&b_ptr->publ.lock);
+	spin_unlock_bh(&b_ptr->lock);
 	read_unlock_bh(&tipc_net_lock);
 	return 0;
 }
@@ -620,27 +618,27 @@ int tipc_block_bearer(const char *name)
  * Note: This routine assumes caller holds tipc_net_lock.
  */
 
-static void bearer_disable(struct bearer *b_ptr)
+static void bearer_disable(struct tipc_bearer *b_ptr)
 {
 	struct link *l_ptr;
 	struct link *temp_l_ptr;
 
-	info("Disabling bearer <%s>\n", b_ptr->publ.name);
+	info("Disabling bearer <%s>\n", b_ptr->name);
 	tipc_disc_stop_link_req(b_ptr->link_req);
-	spin_lock_bh(&b_ptr->publ.lock);
+	spin_lock_bh(&b_ptr->lock);
 	b_ptr->link_req = NULL;
-	b_ptr->publ.blocked = 1;
-	b_ptr->media->disable_bearer(&b_ptr->publ);
+	b_ptr->blocked = 1;
+	b_ptr->media->disable_bearer(b_ptr);
 	list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
 		tipc_link_delete(l_ptr);
 	}
-	spin_unlock_bh(&b_ptr->publ.lock);
-	memset(b_ptr, 0, sizeof(struct bearer));
+	spin_unlock_bh(&b_ptr->lock);
+	memset(b_ptr, 0, sizeof(struct tipc_bearer));
 }
 
 int tipc_disable_bearer(const char *name)
 {
-	struct bearer *b_ptr;
+	struct tipc_bearer *b_ptr;
 	int res;
 
 	write_lock_bh(&tipc_net_lock);
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index 85f451d..255dea6 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -2,7 +2,7 @@
  * net/tipc/bearer.h: Include file for TIPC bearer code
  *
  * Copyright (c) 1996-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -61,26 +61,7 @@ struct tipc_media_addr {
 	} dev_addr;
 };
 
-/**
- * struct tipc_bearer - TIPC bearer info available to media code
- * @usr_handle: pointer to additional media-specific information about bearer
- * @mtu: max packet size bearer can support
- * @blocked: non-zero if bearer is blocked
- * @lock: spinlock for controlling access to bearer
- * @addr: media-specific address associated with bearer
- * @name: bearer name (format = media:interface)
- *
- * Note: TIPC initializes "name" and "lock" fields; media code is responsible
- * for initialization all other fields when a bearer is enabled.
- */
-struct tipc_bearer {
-	void *usr_handle;
-	u32 mtu;
-	int blocked;
-	spinlock_t lock;
-	struct tipc_media_addr addr;
-	char name[TIPC_MAX_BEARER_NAME];
-};
+struct tipc_bearer;
 
 /**
  * struct media - TIPC media information available to internal users
@@ -115,8 +96,13 @@ struct media {
 };
 
 /**
- * struct bearer - TIPC bearer information available to internal users
- * @publ: bearer information available to privileged users
+ * struct tipc_bearer - TIPC bearer structure
+ * @usr_handle: pointer to additional media-specific information about bearer
+ * @mtu: max packet size bearer can support
+ * @blocked: non-zero if bearer is blocked
+ * @lock: spinlock for controlling access to bearer
+ * @addr: media-specific address associated with bearer
+ * @name: bearer name (format = media:interface)
  * @media: ptr to media structure associated with bearer
  * @priority: default link priority for bearer
  * @detect_scope: network address mask used during automatic link creation
@@ -128,10 +114,18 @@ struct media {
  * @active: non-zero if bearer structure is represents a bearer
  * @net_plane: network plane ('A' through 'H') currently associated with bearer
  * @nodes: indicates which nodes in cluster can be reached through bearer
+ *
+ * Note: media-specific code is responsible for initialization of the fields
+ * indicated below when a bearer is enabled; TIPC's generic bearer code takes
+ * care of initializing all other fields.
  */
-
-struct bearer {
-	struct tipc_bearer publ;
+struct tipc_bearer {
+	void *usr_handle;			/* initalized by media */
+	u32 mtu;				/* initalized by media */
+	int blocked;				/* initalized by media */
+	struct tipc_media_addr addr;		/* initalized by media */
+	char name[TIPC_MAX_BEARER_NAME];
+	spinlock_t lock;
 	struct media *media;
 	u32 priority;
 	u32 detect_scope;
@@ -152,7 +146,7 @@ struct bearer_name {
 
 struct link;
 
-extern struct bearer tipc_bearers[];
+extern struct tipc_bearer tipc_bearers[];
 
 /*
  * TIPC routines available to supported media types
@@ -186,14 +180,14 @@ void tipc_media_addr_printf(struct print_buf *pb, struct tipc_media_addr *a);
 struct sk_buff *tipc_media_get_names(void);
 
 struct sk_buff *tipc_bearer_get_names(void);
-void tipc_bearer_add_dest(struct bearer *b_ptr, u32 dest);
-void tipc_bearer_remove_dest(struct bearer *b_ptr, u32 dest);
-void tipc_bearer_schedule(struct bearer *b_ptr, struct link *l_ptr);
-struct bearer *tipc_bearer_find_interface(const char *if_name);
-int tipc_bearer_resolve_congestion(struct bearer *b_ptr, struct link *l_ptr);
-int tipc_bearer_congested(struct bearer *b_ptr, struct link *l_ptr);
+void tipc_bearer_add_dest(struct tipc_bearer *b_ptr, u32 dest);
+void tipc_bearer_remove_dest(struct tipc_bearer *b_ptr, u32 dest);
+void tipc_bearer_schedule(struct tipc_bearer *b_ptr, struct link *l_ptr);
+struct tipc_bearer *tipc_bearer_find_interface(const char *if_name);
+int tipc_bearer_resolve_congestion(struct tipc_bearer *b_ptr, struct link *l_ptr);
+int tipc_bearer_congested(struct tipc_bearer *b_ptr, struct link *l_ptr);
 void tipc_bearer_stop(void);
-void tipc_bearer_lock_push(struct bearer *b_ptr);
+void tipc_bearer_lock_push(struct tipc_bearer *b_ptr);
 
 
 /**
@@ -214,10 +208,11 @@ void tipc_bearer_lock_push(struct bearer *b_ptr);
  * and let TIPC's link code deal with the undelivered message.
  */
 
-static inline int tipc_bearer_send(struct bearer *b_ptr, struct sk_buff *buf,
+static inline int tipc_bearer_send(struct tipc_bearer *b_ptr,
+				   struct sk_buff *buf,
 				   struct tipc_media_addr *dest)
 {
-	return !b_ptr->media->send_msg(buf, &b_ptr->publ, dest);
+	return !b_ptr->media->send_msg(buf, b_ptr, dest);
 }
 
 #endif	/* _TIPC_BEARER_H */
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index fa026bd..59a86fc 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -2,7 +2,7 @@
  * net/tipc/discover.c
  *
  * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005-2006, Wind River Systems
+ * Copyright (c) 2005-2006, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -57,7 +57,7 @@
  * @timer_intv: current interval between requests (in ms)
  */
 struct link_req {
-	struct bearer *bearer;
+	struct tipc_bearer *bearer;
 	struct tipc_media_addr dest;
 	struct sk_buff *buf;
 	struct timer_list timer;
@@ -75,7 +75,7 @@ struct link_req {
 static struct sk_buff *tipc_disc_init_msg(u32 type,
 					  u32 req_links,
 					  u32 dest_domain,
-					  struct bearer *b_ptr)
+					  struct tipc_bearer *b_ptr)
 {
 	struct sk_buff *buf = tipc_buf_acquire(DSC_H_SIZE);
 	struct tipc_msg *msg;
@@ -87,7 +87,7 @@ static struct sk_buff *tipc_disc_init_msg(u32 type,
 		msg_set_req_links(msg, req_links);
 		msg_set_dest_domain(msg, dest_domain);
 		msg_set_bc_netid(msg, tipc_net_id);
-		msg_set_media_addr(msg, &b_ptr->publ.addr);
+		msg_set_media_addr(msg, &b_ptr->addr);
 	}
 	return buf;
 }
@@ -99,7 +99,7 @@ static struct sk_buff *tipc_disc_init_msg(u32 type,
  * @media_addr: media address advertised by duplicated node
  */
 
-static void disc_dupl_alert(struct bearer *b_ptr, u32 node_addr,
+static void disc_dupl_alert(struct tipc_bearer *b_ptr, u32 node_addr,
 			    struct tipc_media_addr *media_addr)
 {
 	char node_addr_str[16];
@@ -111,7 +111,7 @@ static void disc_dupl_alert(struct bearer *b_ptr, u32 node_addr,
 	tipc_media_addr_printf(&pb, media_addr);
 	tipc_printbuf_validate(&pb);
 	warn("Duplicate %s using %s seen on <%s>\n",
-	     node_addr_str, media_addr_str, b_ptr->publ.name);
+	     node_addr_str, media_addr_str, b_ptr->name);
 }
 
 /**
@@ -120,7 +120,7 @@ static void disc_dupl_alert(struct bearer *b_ptr, u32 node_addr,
  * @b_ptr: bearer that message arrived on
  */
 
-void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr)
+void tipc_disc_recv_msg(struct sk_buff *buf, struct tipc_bearer *b_ptr)
 {
 	struct link *link;
 	struct tipc_media_addr media_addr;
@@ -140,7 +140,7 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr)
 	if (!tipc_addr_node_valid(orig))
 		return;
 	if (orig == tipc_own_addr) {
-		if (memcmp(&media_addr, &b_ptr->publ.addr, sizeof(media_addr)))
+		if (memcmp(&media_addr, &b_ptr->addr, sizeof(media_addr)))
 			disc_dupl_alert(b_ptr, tipc_own_addr, &media_addr);
 		return;
 	}
@@ -193,7 +193,7 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr)
 			return;
 		rbuf = tipc_disc_init_msg(DSC_RESP_MSG, 1, orig, b_ptr);
 		if (rbuf != NULL) {
-			b_ptr->media->send_msg(rbuf, &b_ptr->publ, &media_addr);
+			b_ptr->media->send_msg(rbuf, b_ptr, &media_addr);
 			buf_discard(rbuf);
 		}
 	}
@@ -249,9 +249,9 @@ void tipc_disc_update_link_req(struct link_req *req)
 
 static void disc_timeout(struct link_req *req)
 {
-	spin_lock_bh(&req->bearer->publ.lock);
+	spin_lock_bh(&req->bearer->lock);
 
-	req->bearer->media->send_msg(req->buf, &req->bearer->publ, &req->dest);
+	req->bearer->media->send_msg(req->buf, req->bearer, &req->dest);
 
 	if ((req->timer_intv == TIPC_LINK_REQ_SLOW) ||
 	    (req->timer_intv == TIPC_LINK_REQ_FAST)) {
@@ -266,7 +266,7 @@ static void disc_timeout(struct link_req *req)
 	}
 	k_start_timer(&req->timer, req->timer_intv);
 
-	spin_unlock_bh(&req->bearer->publ.lock);
+	spin_unlock_bh(&req->bearer->lock);
 }
 
 /**
@@ -279,7 +279,7 @@ static void disc_timeout(struct link_req *req)
  * Returns pointer to link request structure, or NULL if unable to create.
  */
 
-struct link_req *tipc_disc_init_link_req(struct bearer *b_ptr,
+struct link_req *tipc_disc_init_link_req(struct tipc_bearer *b_ptr,
 					 const struct tipc_media_addr *dest,
 					 u32 dest_domain,
 					 u32 req_links)
diff --git a/net/tipc/discover.h b/net/tipc/discover.h
index d2c3cff..4046d77 100644
--- a/net/tipc/discover.h
+++ b/net/tipc/discover.h
@@ -2,7 +2,7 @@
  * net/tipc/discover.h
  *
  * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -39,13 +39,13 @@
 
 struct link_req;
 
-struct link_req *tipc_disc_init_link_req(struct bearer *b_ptr,
+struct link_req *tipc_disc_init_link_req(struct tipc_bearer *b_ptr,
 					 const struct tipc_media_addr *dest,
 					 u32 dest_domain,
 					 u32 req_links);
 void tipc_disc_update_link_req(struct link_req *req);
 void tipc_disc_stop_link_req(struct link_req *req);
 
-void tipc_disc_recv_msg(struct sk_buff *buf, struct bearer *b_ptr);
+void tipc_disc_recv_msg(struct sk_buff *buf, struct tipc_bearer *b_ptr);
 
 #endif
diff --git a/net/tipc/link.c b/net/tipc/link.c
index e30770d..1c5c53a 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -113,7 +113,7 @@ static void link_init_max_pkt(struct link *l_ptr)
 {
 	u32 max_pkt;
 
-	max_pkt = (l_ptr->b_ptr->publ.mtu & ~3);
+	max_pkt = (l_ptr->b_ptr->mtu & ~3);
 	if (max_pkt > MAX_MSG_SIZE)
 		max_pkt = MAX_MSG_SIZE;
 
@@ -303,7 +303,7 @@ static void link_set_timer(struct link *l_ptr, u32 time)
  * Returns pointer to link.
  */
 
-struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer,
+struct link *tipc_link_create(struct tipc_bearer *b_ptr, const u32 peer,
 			      const struct tipc_media_addr *media_addr)
 {
 	struct link *l_ptr;
@@ -317,7 +317,7 @@ struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer,
 	}
 
 	l_ptr->addr = peer;
-	if_name = strchr(b_ptr->publ.name, ':') + 1;
+	if_name = strchr(b_ptr->name, ':') + 1;
 	sprintf(l_ptr->name, "%u.%u.%u:%s-%u.%u.%u:",
 		tipc_zone(tipc_own_addr), tipc_cluster(tipc_own_addr),
 		tipc_node(tipc_own_addr),
@@ -1595,11 +1595,10 @@ static int link_recv_buf_validate(struct sk_buff *buf)
  * structure (i.e. cannot be NULL), but bearer can be inactive.
  */
 
-void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *tb_ptr)
+void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
 {
 	read_lock_bh(&tipc_net_lock);
 	while (head) {
-		struct bearer *b_ptr = (struct bearer *)tb_ptr;
 		struct tipc_node *n_ptr;
 		struct link *l_ptr;
 		struct sk_buff *crs;
@@ -2658,7 +2657,7 @@ void tipc_link_set_queue_limits(struct link *l_ptr, u32 window)
 static struct link *link_find_link(const char *name, struct tipc_node **node)
 {
 	struct link_name link_name_parts;
-	struct bearer *b_ptr;
+	struct tipc_bearer *b_ptr;
 	struct link *l_ptr;
 
 	if (!link_name_validate(name, &link_name_parts))
@@ -2961,7 +2960,7 @@ static void link_print(struct link *l_ptr, const char *str)
 
 	tipc_printf(buf, str);
 	tipc_printf(buf, "Link %x<%s>:",
-		    l_ptr->addr, l_ptr->b_ptr->publ.name);
+		    l_ptr->addr, l_ptr->b_ptr->name);
 
 #ifdef CONFIG_TIPC_DEBUG
 	if (link_reset_reset(l_ptr) || link_reset_unknown(l_ptr))
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 85fd3bc..bdb0fa2 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -122,7 +122,7 @@ struct link {
 	u32 checkpoint;
 	u32 peer_session;
 	u32 peer_bearer_id;
-	struct bearer *b_ptr;
+	struct tipc_bearer *b_ptr;
 	u32 tolerance;
 	u32 continuity_interval;
 	u32 abort_limit;
@@ -213,7 +213,7 @@ struct link {
 
 struct tipc_port;
 
-struct link *tipc_link_create(struct bearer *b_ptr, const u32 peer,
+struct link *tipc_link_create(struct tipc_bearer *b_ptr, const u32 peer,
 			      const struct tipc_media_addr *media_addr);
 void tipc_link_delete(struct link *l_ptr);
 void tipc_link_changeover(struct link *l_ptr);
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 3af53e3..e4dba1d 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -2,7 +2,7 @@
  * net/tipc/node.c: TIPC node management routines
  *
  * Copyright (c) 2000-2006, Ericsson AB
- * Copyright (c) 2005-2006, Wind River Systems
+ * Copyright (c) 2005-2006, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -238,7 +238,7 @@ struct tipc_node *tipc_node_attach_link(struct link *l_ptr)
 			return n_ptr;
 		}
 		err("Attempt to establish second link on <%s> to %s\n",
-		    l_ptr->b_ptr->publ.name,
+		    l_ptr->b_ptr->name,
 		    tipc_addr_string_fill(addr_string, l_ptr->addr));
 	}
 	return NULL;
-- 
1.7.3.3

[PATCH net-next 03/17] tipc: Remove unused global variable tipc_user_count

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Eliminates a global variable that was previously used by TIPC's user
registry to track the number of distinct applications using TIPC. Due to
the recent elimination of the user registry this variable no longer serves
any purpose and can be removed.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/core.c   |    3 +--
 net/tipc/core.h   |    3 +--
 net/tipc/socket.c |    4 +---
 3 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/net/tipc/core.c b/net/tipc/core.c
index e071579..2da1fc7 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -2,7 +2,7 @@
  * net/tipc/core.c: TIPC module code
  *
  * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005-2006, Wind River Systems
+ * Copyright (c) 2005-2006, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -57,7 +57,6 @@
 
 int tipc_mode = TIPC_NOT_RUNNING;
 int tipc_random;
-atomic_t tipc_user_count = ATOMIC_INIT(0);
 
 const char tipc_alphabet[] =
 	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_.";
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 9971585..37544d9 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -2,7 +2,7 @@
  * net/tipc/core.h: Include file for TIPC global declarations
  *
  * Copyright (c) 2005-2006, Ericsson AB
- * Copyright (c) 2005-2007, Wind River Systems
+ * Copyright (c) 2005-2007, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -161,7 +161,6 @@ extern int tipc_remote_management;
 extern int tipc_mode;
 extern int tipc_random;
 extern const char tipc_alphabet[];
-extern atomic_t tipc_user_count;
 
 
 /*
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 2b02a3a..893ca6e 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -2,7 +2,7 @@
  * net/tipc/socket.c: TIPC socket API
  *
  * Copyright (c) 2001-2007, Ericsson AB
- * Copyright (c) 2004-2008, Wind River Systems
+ * Copyright (c) 2004-2008, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -241,7 +241,6 @@ static int tipc_create(struct net *net, struct socket *sock, int protocol,
 			tipc_set_portunreliable(tp_ptr->ref, 1);
 	}
 
-	atomic_inc(&tipc_user_count);
 	return 0;
 }
 
@@ -321,7 +320,6 @@ static int release(struct socket *sock)
 	sock_put(sk);
 	sock->sk = NULL;
 
-	atomic_dec(&tipc_user_count);
 	return res;
 }
 
-- 
1.7.3.3

[PATCH net-next 04/17] tipc: Prevent invalid memory access when sending to configuration service

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Reject TIPC configuration service messages without a full message
header.  Previously, an application that sent a message to the
configuration service that was too short could cause the validation
code to access an uninitialized field in the msghdr structure,
resulting in a memory access exception.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/socket.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 893ca6e..125dcb0 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -493,6 +493,8 @@ static int dest_name_check(struct sockaddr_tipc *dest, struct msghdr *m)
 	if (likely(dest->addr.name.name.type != TIPC_CFG_SRV))
 		return -EACCES;
 
+	if (!m->msg_iovlen || (m->msg_iov[0].iov_len < sizeof(hdr)))
+		return -EMSGSIZE;
 	if (copy_from_user(&hdr, m->msg_iov[0].iov_base, sizeof(hdr)))
 		return -EFAULT;
 	if ((ntohs(hdr.tcm_type) & 0xC000) && (!capable(CAP_NET_ADMIN)))
-- 
1.7.3.3

[PATCH net-next 05/17] tipc: Improve handling of invalid link tolerance values

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Enhances TIPC link code to ignore an invalid link tolerance value
contained in an incoming LINK_PROTOCOL message, rather than
processing the value and potentially causing a divide-by-zero error.

Also add a compile-time check that catches attempts to redefine
TIPC's minimum link tolerance value in a manner that might result
in the same divide-by-zero error at run-time.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 include/linux/tipc_config.h |    4 ++++
 net/tipc/link.c             |    3 +++
 2 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/include/linux/tipc_config.h b/include/linux/tipc_config.h
index 7d42460a..c14102d 100644
--- a/include/linux/tipc_config.h
+++ b/include/linux/tipc_config.h
@@ -193,6 +193,10 @@
 #define TIPC_DEF_LINK_TOL 1500
 #define TIPC_MAX_LINK_TOL 30000
 
+#if (TIPC_MIN_LINK_TOL < 16)
+#error "TIPC_MIN_LINK_TOL is too small (abort limit may be NaN)"
+#endif
+
 /*
  * Link window limits (min, default, max), in packets
  */
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 1c5c53a..3c1c28c 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2617,6 +2617,9 @@ static void link_check_defragm_bufs(struct link *l_ptr)
 
 static void link_set_supervision_props(struct link *l_ptr, u32 tolerance)
 {
+	if ((tolerance < TIPC_MIN_LINK_TOL) || (tolerance > TIPC_MAX_LINK_TOL))
+		return;
+
 	l_ptr->tolerance = tolerance;
 	l_ptr->continuity_interval =
 		((tolerance / 4) > 500) ? 500 : tolerance / 4;
-- 
1.7.3.3

[PATCH net-next 06/17] tipc: Fix print statements that assume pointers are 32-bit values

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Corrects print statements that use %x to print pointer values to use
%p instead, so that 64-bit pointer values are displayed correctly.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/link.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 3c1c28c..d586265 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2983,9 +2983,9 @@ static void link_print(struct link *l_ptr, const char *str)
 		     != (l_ptr->out_queue_size - 1)) ||
 		    (l_ptr->last_out->next != NULL)) {
 			tipc_printf(buf, "\nSend queue inconsistency\n");
-			tipc_printf(buf, "first_out= %x ", l_ptr->first_out);
-			tipc_printf(buf, "next_out= %x ", l_ptr->next_out);
-			tipc_printf(buf, "last_out= %x ", l_ptr->last_out);
+			tipc_printf(buf, "first_out= %p ", l_ptr->first_out);
+			tipc_printf(buf, "next_out= %p ", l_ptr->next_out);
+			tipc_printf(buf, "last_out= %p ", l_ptr->last_out);
 		}
 	} else
 		tipc_printf(buf, "[]");
-- 
1.7.3.3

[PATCH net-next 07/17] tipc: Clean out all remaining instances of #if 0'd unused code

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Remove all instances of legacy or proposed-but-not-implemented code
that lives within an #if 0 ... #endif block.  If some of it is needed
in the future it can recovered out of history, but there is no need
for it to clutter up the active code base.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 include/linux/tipc.h        |    8 +-------
 include/linux/tipc_config.h |   28 +---------------------------
 2 files changed, 2 insertions(+), 34 deletions(-)

diff --git a/include/linux/tipc.h b/include/linux/tipc.h
index 1eefa3f..a5b994a 100644
--- a/include/linux/tipc.h
+++ b/include/linux/tipc.h
@@ -2,7 +2,7 @@
  * include/linux/tipc.h: Include file for TIPC socket interface
  *
  * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -130,12 +130,6 @@ static inline unsigned int tipc_node(__u32 addr)
 #define TIPC_SUB_PORTS		0x01	/* filter for port availability */
 #define TIPC_SUB_SERVICE	0x02	/* filter for service availability */
 #define TIPC_SUB_CANCEL		0x04	/* cancel a subscription */
-#if 0
-/* The following filter options are not currently implemented */
-#define TIPC_SUB_NO_BIND_EVTS	0x04	/* filter out "publish" events */
-#define TIPC_SUB_NO_UNBIND_EVTS	0x08	/* filter out "withdraw" events */
-#define TIPC_SUB_SINGLE_EVT	0x10	/* expire after first event */
-#endif
 
 #define TIPC_WAIT_FOREVER	(~0)	/* timeout for permanent subscription */
 
diff --git a/include/linux/tipc_config.h b/include/linux/tipc_config.h
index c14102d..011556f 100644
--- a/include/linux/tipc_config.h
+++ b/include/linux/tipc_config.h
@@ -2,7 +2,7 @@
  * include/linux/tipc_config.h: Include file for TIPC configuration interface
  *
  * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005-2007, Wind River Systems
+ * Copyright (c) 2005-2007, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -76,13 +76,6 @@
 #define  TIPC_CMD_SHOW_LINK_STATS   0x000B    /* tx link_name, rx ultra_string */
 #define  TIPC_CMD_SHOW_STATS        0x000F    /* tx unsigned, rx ultra_string */
 
-#if 0
-#define  TIPC_CMD_SHOW_PORT_STATS   0x0008    /* tx port_ref, rx ultra_string */
-#define  TIPC_CMD_RESET_PORT_STATS  0x0009    /* tx port_ref, rx none */
-#define  TIPC_CMD_GET_ROUTES        0x000A    /* tx ?, rx ? */
-#define  TIPC_CMD_GET_LINK_PEER     0x000D    /* tx link_name, rx ? */
-#endif
-
 /*
  * Protected commands:
  * May only be issued by "network administration capable" process.
@@ -109,13 +102,6 @@
 #define  TIPC_CMD_DUMP_LOG          0x410B    /* tx none, rx ultra_string */
 #define  TIPC_CMD_RESET_LINK_STATS  0x410C    /* tx link_name, rx none */
 
-#if 0
-#define  TIPC_CMD_CREATE_LINK       0x4103    /* tx link_create, rx none */
-#define  TIPC_CMD_REMOVE_LINK       0x4104    /* tx link_name, rx none */
-#define  TIPC_CMD_BLOCK_LINK        0x4105    /* tx link_name, rx none */
-#define  TIPC_CMD_UNBLOCK_LINK      0x4106    /* tx link_name, rx none */
-#endif
-
 /*
  * Private commands:
  * May only be issued by "network administration capable" process.
@@ -123,9 +109,6 @@
  */
 
 #define  TIPC_CMD_SET_NODE_ADDR     0x8001    /* tx net_addr, rx none */
-#if 0
-#define  TIPC_CMD_SET_ZONE_MASTER   0x8002    /* tx none, rx none */
-#endif
 #define  TIPC_CMD_SET_REMOTE_MNG    0x8003    /* tx unsigned, rx none */
 #define  TIPC_CMD_SET_MAX_PORTS     0x8004    /* tx unsigned, rx none */
 #define  TIPC_CMD_SET_MAX_PUBL      0x8005    /* tx unsigned, rx none */
@@ -251,15 +234,6 @@ struct tipc_name_table_query {
 #define TIPC_CFG_NOT_SUPPORTED  "\x84"	/* request is not supported by TIPC */
 #define TIPC_CFG_INVALID_VALUE  "\x85"  /* request has invalid argument value */
 
-#if 0
-/* prototypes TLV structures for proposed commands */
-struct tipc_link_create {
-	__u32   domain;
-	struct tipc_media_addr peer_addr;
-	char bearer_name[TIPC_MAX_BEARER_NAME];
-};
-#endif
-
 /*
  * A TLV consists of a descriptor, followed by the TLV value.
  * TLV descriptor fields are stored in network byte order;
-- 
1.7.3.3

[PATCH net-next 08/17] tipc: Clean up tracking of node requesting a broadcast retransmit

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Allows the broadcast link to track the node that is requesting a retransmit
in a new field dedicated to that purpose. This replaces the existing
mechanism that (ab)uses an existing node structure linked list field to do
the tracking.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/bcast.c |   16 ++++++++++++++--
 net/tipc/bcast.h |    3 ++-
 net/tipc/link.c  |    2 +-
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index b4d659d..a5eb7db 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -93,6 +93,7 @@ struct bcbearer {
  * struct bclink - link used for broadcast messages
  * @link: (non-standard) broadcast link structure
  * @node: (non-standard) node structure representing b'cast link's peer node
+ * @retransmit_to: node that most recently requested a retransmit
  *
  * Handles sequence numbering, fragmentation, bundling, etc.
  */
@@ -100,6 +101,7 @@ struct bcbearer {
 struct bclink {
 	struct link link;
 	struct tipc_node node;
+	struct tipc_node *retransmit_to;
 };
 
 
@@ -184,6 +186,17 @@ static int bclink_ack_allowed(u32 n)
 
 
 /**
+ * tipc_bclink_retransmit_to - get most recent node to request retransmission
+ *
+ * Called with bc_lock locked
+ */
+
+struct tipc_node *tipc_bclink_retransmit_to(void)
+{
+	return bclink->retransmit_to;
+}
+
+/**
  * bclink_retransmit_pkt - retransmit broadcast packets
  * @after: sequence number of last packet to *not* retransmit
  * @to: sequence number of last packet to retransmit
@@ -444,10 +457,9 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
 			tipc_node_unlock(node);
 			spin_lock_bh(&bc_lock);
 			bcl->stats.recv_nacks++;
-			bcl->owner->next = node;   /* remember requestor */
+			bclink->retransmit_to = node;
 			bclink_retransmit_pkt(msg_bcgap_after(msg),
 					      msg_bcgap_to(msg));
-			bcl->owner->next = NULL;
 			spin_unlock_bh(&bc_lock);
 		} else {
 			tipc_bclink_peek_nack(msg_destnode(msg),
diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h
index 51f8c53..500c97f 100644
--- a/net/tipc/bcast.h
+++ b/net/tipc/bcast.h
@@ -2,7 +2,7 @@
  * net/tipc/bcast.h: Include file for TIPC broadcast code
  *
  * Copyright (c) 2003-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -90,6 +90,7 @@ void tipc_port_list_free(struct port_list *pl_ptr);
 
 int  tipc_bclink_init(void);
 void tipc_bclink_stop(void);
+struct tipc_node *tipc_bclink_retransmit_to(void);
 void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked);
 int  tipc_bclink_send_msg(struct sk_buff *buf);
 void tipc_bclink_recv_pkt(struct sk_buff *buf);
diff --git a/net/tipc/link.c b/net/tipc/link.c
index d586265..0cb773b 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1441,7 +1441,7 @@ static void link_retransmit_failure(struct link *l_ptr, struct sk_buff *buf)
 		info("Outstanding acks: %lu\n",
 		     (unsigned long) TIPC_SKB_CB(buf)->handle);
 
-		n_ptr = l_ptr->owner->next;
+		n_ptr = tipc_bclink_retransmit_to();
 		tipc_node_lock(n_ptr);
 
 		tipc_addr_string_fill(addr_string, n_ptr->addr);
-- 
1.7.3.3

[PATCH net-next 09/17] tipc: Eliminate unnecessary locking when starting topology service

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Modifies the initialization code for TIPC's topology service to
avoid taking the spinlock protecting the subscriber list, since
there is no need to do this.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/subscr.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index 98ee50b..1387372 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -542,7 +542,6 @@ int tipc_subscr_start(void)
 	spin_lock_init(&topsrv.lock);
 	INIT_LIST_HEAD(&topsrv.subscriber_list);
 
-	spin_lock_bh(&topsrv.lock);
 	res = tipc_createport(NULL,
 			      TIPC_CRITICAL_IMPORTANCE,
 			      NULL,
@@ -563,12 +562,10 @@ int tipc_subscr_start(void)
 		goto failed;
 	}
 
-	spin_unlock_bh(&topsrv.lock);
 	return 0;
 
 failed:
 	err("Failed to create subscription service\n");
-	spin_unlock_bh(&topsrv.lock);
 	return res;
 }
 
-- 
1.7.3.3

[PATCH net-next 10/17] tipc: Improve accuracy of link transmit queue maximum size statistic

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Enhances TIPC's unicast and broadcast link code to update the transmit
queue maximum size counter in a single place, namely the routine that
adds messages to the queue. This ensures that the maximum size statistic
reported for unicast links is completely accurate, rather than being
partially based on statistical sampling.

The changes to link.h are just documenting the roles of the variables.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/bcast.c |    2 --
 net/tipc/link.c  |    9 +++------
 net/tipc/link.h  |   18 ++++++------------
 3 files changed, 9 insertions(+), 20 deletions(-)

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index a5eb7db..63df42b 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -418,8 +418,6 @@ int tipc_bclink_send_msg(struct sk_buff *buf)
 	else
 		bclink_set_last_sent();
 
-	if (bcl->out_queue_size > bcl->stats.max_queue_sz)
-		bcl->stats.max_queue_sz = bcl->out_queue_size;
 	bcl->stats.queue_sz_counts++;
 	bcl->stats.accu_queue_sz += bcl->out_queue_size;
 
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 0cb773b..d1818fb 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -246,9 +246,6 @@ static void link_timeout(struct link *l_ptr)
 	l_ptr->stats.accu_queue_sz += l_ptr->out_queue_size;
 	l_ptr->stats.queue_sz_counts++;
 
-	if (l_ptr->out_queue_size > l_ptr->stats.max_queue_sz)
-		l_ptr->stats.max_queue_sz = l_ptr->out_queue_size;
-
 	if (l_ptr->first_out) {
 		struct tipc_msg *msg = buf_msg(l_ptr->first_out);
 		u32 length = msg_size(msg);
@@ -824,7 +821,10 @@ static void link_add_to_outqueue(struct link *l_ptr,
 		l_ptr->last_out = buf;
 	} else
 		l_ptr->first_out = l_ptr->last_out = buf;
+
 	l_ptr->out_queue_size++;
+	if (l_ptr->out_queue_size > l_ptr->stats.max_queue_sz)
+		l_ptr->stats.max_queue_sz = l_ptr->out_queue_size;
 }
 
 /*
@@ -867,9 +867,6 @@ int tipc_link_send_buf(struct link *l_ptr, struct sk_buff *buf)
 
 	/* Packet can be queued or sent: */
 
-	if (queue_size > l_ptr->stats.max_queue_sz)
-		l_ptr->stats.max_queue_sz = queue_size;
-
 	if (likely(!tipc_bearer_congested(l_ptr->b_ptr, l_ptr) &&
 		   !link_congested(l_ptr))) {
 		link_add_to_outqueue(l_ptr, buf, msg);
diff --git a/net/tipc/link.h b/net/tipc/link.h
index bdb0fa2..a7794e7 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -196,18 +196,12 @@ struct link {
 		u32 bearer_congs;
 		u32 deferred_recv;
 		u32 duplicates;
-
-		/* for statistical profiling of send queue size */
-
-		u32 max_queue_sz;
-		u32 accu_queue_sz;
-		u32 queue_sz_counts;
-
-		/* for statistical profiling of message lengths */
-
-		u32 msg_length_counts;
-		u32 msg_lengths_total;
-		u32 msg_length_profile[7];
+		u32 max_queue_sz;	/* send queue size high water mark */
+		u32 accu_queue_sz;	/* used for send queue size profiling */
+		u32 queue_sz_counts;	/* used for send queue size profiling */
+		u32 msg_length_counts;	/* used for message length profiling */
+		u32 msg_lengths_total;	/* used for message length profiling */
+		u32 msg_length_profile[7]; /* used for msg. length profiling */
 	} stats;
 };
 
-- 
1.7.3.3

[PATCH net-next 11/17] tipc: Set unused probe field of link protocol messages to defined value

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Ensures that a link reset or activate message has a "probe" field
of zero. (This field is currently unused in these messages, but this
could potentially change in future versions of TIPC.)

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/link.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index d1818fb..754e310 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1946,6 +1946,7 @@ void tipc_link_send_proto_msg(struct link *l_ptr, u32 msg_typ, int probe_msg,
 		msg_set_ack(msg, mod(l_ptr->reset_checkpoint - 1));
 		msg_set_seq_gap(msg, 0);
 		msg_set_next_sent(msg, 1);
+		msg_set_probe(msg, 0);
 		msg_set_link_tolerance(msg, l_ptr->tolerance);
 		msg_set_linkprio(msg, l_ptr->priority);
 		msg_set_max_pkt(msg, l_ptr->max_pkt_target);
-- 
1.7.3.3

[PATCH net-next 12/17] tipc: Minor optimization to topology service connection establishment

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Eliminates a local iovec structure containing no data, which was
previously used during the establishment of a topology service connection,
since the same effect can be achieved by passing in a NULL pointer and
an iovec length of zero.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/subscr.c |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

diff --git a/net/tipc/subscr.c b/net/tipc/subscr.c
index 1387372..aae9eae 100644
--- a/net/tipc/subscr.c
+++ b/net/tipc/subscr.c
@@ -472,8 +472,6 @@ static void subscr_named_msg_event(void *usr_handle,
 				   struct tipc_portid const *orig,
 				   struct tipc_name_seq const *dest)
 {
-	static struct iovec msg_sect = {NULL, 0};
-
 	struct subscriber *subscriber;
 	u32 server_port_ref;
 
@@ -523,7 +521,7 @@ static void subscr_named_msg_event(void *usr_handle,
 
 	/* Send an ACK- to complete connection handshaking */
 
-	tipc_send(server_port_ref, 1, &msg_sect);
+	tipc_send(server_port_ref, 0, NULL);
 
 	/* Handle optional subscription request */
 
-- 
1.7.3.3

[PATCH net-next 13/17] tipc: Fix port counter handling to correct congestion control

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Modifies TIPC's congestion control between a connected port and its
peer so that it works as documented. The following changes have been
made:

1) The counter of the number of messages sent by a port now starts
   at zero, rather than one. This prevents the port from reporting port
   congestion one message earlier than it was supposed to.

2) The counter of the number of messages sent by a port is now
   incremented only if a non-empty message is sent successfully.
   This prevents the port from becoming permanently congested if
   too many send attempts are unsuccessful because of congestion
   (or other reasons). It also removes the risk that empty hand-
   shaking messages used during connection setup might cause the
   port to report congestion earlier than it was supposed to.

3) The counter of the number of unacknowledged messages received by
   a port controlled by an internal TIPC service is now incremented
   only if the message is non-empty, in order to be consistent with
   the aforementioned changes.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/port.c |   53 ++++++++++++++++++++++++++++++++++-------------------
 net/tipc/port.h |    4 ++--
 2 files changed, 36 insertions(+), 21 deletions(-)

diff --git a/net/tipc/port.c b/net/tipc/port.c
index aff5dc0..3e5122c 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -234,7 +234,6 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
 	tipc_msg_init(msg, importance, TIPC_NAMED_MSG, LONG_H_SIZE, 0);
 	msg_set_origport(msg, ref);
 	p_ptr->last_in_seqno = 41;
-	p_ptr->sent = 1;
 	INIT_LIST_HEAD(&p_ptr->wait_list);
 	INIT_LIST_HEAD(&p_ptr->subscription.nodesub_list);
 	p_ptr->dispatcher = dispatcher;
@@ -732,6 +731,7 @@ static void port_dispatcher_sigh(void *dummy)
 				tipc_conn_msg_event cb = up_ptr->conn_msg_cb;
 				u32 peer_port = port_peerport(p_ptr);
 				u32 peer_node = port_peernode(p_ptr);
+				u32 dsz;
 
 				tipc_port_unlock(p_ptr);
 				if (unlikely(!cb))
@@ -742,13 +742,14 @@ static void port_dispatcher_sigh(void *dummy)
 				} else if ((msg_origport(msg) != peer_port) ||
 					   (msg_orignode(msg) != peer_node))
 					goto reject;
-				if (unlikely(++p_ptr->conn_unacked >=
-					     TIPC_FLOW_CONTROL_WIN))
+				dsz = msg_data_sz(msg);
+				if (unlikely(dsz &&
+					     (++p_ptr->conn_unacked >=
+					      TIPC_FLOW_CONTROL_WIN)))
 					tipc_acknowledge(dref,
 							 p_ptr->conn_unacked);
 				skb_pull(buf, msg_hdr_sz(msg));
-				cb(usr_handle, dref, &buf, msg_data(msg),
-				   msg_data_sz(msg));
+				cb(usr_handle, dref, &buf, msg_data(msg), dsz);
 				break;
 			}
 		case TIPC_DIRECT_MSG:{
@@ -1221,7 +1222,8 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect)
 		if (likely(res != -ELINKCONG)) {
 			port_incr_out_seqno(p_ptr);
 			p_ptr->congested = 0;
-			p_ptr->sent++;
+			if (res > 0)
+				p_ptr->sent++;
 			return res;
 		}
 	}
@@ -1263,13 +1265,17 @@ int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain,
 	msg_set_destport(msg, destport);
 
 	if (likely(destport)) {
-		p_ptr->sent++;
 		if (likely(destnode == tipc_own_addr))
-			return tipc_port_recv_sections(p_ptr, num_sect, msg_sect);
-		res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect,
-						   destnode);
-		if (likely(res != -ELINKCONG))
+			res = tipc_port_recv_sections(p_ptr, num_sect,
+						      msg_sect);
+		else
+			res = tipc_link_send_sections_fast(p_ptr, msg_sect,
+							   num_sect, destnode);
+		if (likely(res != -ELINKCONG)) {
+			if (res > 0)
+				p_ptr->sent++;
 			return res;
+		}
 		if (port_unreliable(p_ptr)) {
 			/* Just calculate msg length and return */
 			return tipc_msg_calc_data_size(msg_sect, num_sect);
@@ -1302,12 +1308,17 @@ int tipc_send2port(u32 ref, struct tipc_portid const *dest,
 	msg_set_destnode(msg, dest->node);
 	msg_set_destport(msg, dest->ref);
 	msg_set_hdr_sz(msg, DIR_MSG_H_SIZE);
-	p_ptr->sent++;
+
 	if (dest->node == tipc_own_addr)
-		return tipc_port_recv_sections(p_ptr, num_sect, msg_sect);
-	res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect, dest->node);
-	if (likely(res != -ELINKCONG))
+		res =  tipc_port_recv_sections(p_ptr, num_sect, msg_sect);
+	else
+		res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect,
+						   dest->node);
+	if (likely(res != -ELINKCONG)) {
+		if (res > 0)
+			p_ptr->sent++;
 		return res;
+	}
 	if (port_unreliable(p_ptr)) {
 		/* Just calculate msg length and return */
 		return tipc_msg_calc_data_size(msg_sect, num_sect);
@@ -1343,12 +1354,16 @@ int tipc_send_buf2port(u32 ref, struct tipc_portid const *dest,
 
 	skb_push(buf, DIR_MSG_H_SIZE);
 	skb_copy_to_linear_data(buf, msg, DIR_MSG_H_SIZE);
-	p_ptr->sent++;
+
 	if (dest->node == tipc_own_addr)
-		return tipc_port_recv_msg(buf);
-	res = tipc_send_buf_fast(buf, dest->node);
-	if (likely(res != -ELINKCONG))
+		res = tipc_port_recv_msg(buf);
+	else
+		res = tipc_send_buf_fast(buf, dest->node);
+	if (likely(res != -ELINKCONG)) {
+		if (res > 0)
+			p_ptr->sent++;
 		return res;
+	}
 	if (port_unreliable(p_ptr))
 		return dsz;
 	return -ELINKCONG;
diff --git a/net/tipc/port.h b/net/tipc/port.h
index f8722af..34ccb7c 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -113,8 +113,8 @@ struct user_port {
  * @user_port: ptr to user port associated with port (if any)
  * @wait_list: adjacent ports in list of ports waiting on link congestion
  * @waiting_pkts:
- * @sent:
- * @acked:
+ * @sent: # of non-empty messages sent by port
+ * @acked: # of non-empty message acknowledgements from connected port's peer
  * @publications: list of publications for port
  * @pub_count: total # of publications port has made during its lifetime
  * @probing_state:
-- 
1.7.3.3

[PATCH net-next 14/17] tipc: Add in missing lock during link initialization

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Ensure that the routine that starts up processing on a newly created
link endpoint takes the spinlock of the node object that owns the link,
to prevent possible conflicts with processing involving other links
owned by that node object.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/link.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 754e310..89fbb6d 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -388,7 +388,9 @@ void tipc_link_delete(struct link *l_ptr)
 
 static void link_start(struct link *l_ptr)
 {
+	tipc_node_lock(l_ptr->owner);
 	link_state_event(l_ptr, STARTING_EVT);
+	tipc_node_unlock(l_ptr->owner);
 }
 
 /**
-- 
1.7.3.3

[PATCH net-next 15/17] tipc: Remove support for per-connection message sequence numbering

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Eliminates TIPC's prototype support for message sequence numbering
on routable connections (i.e. connections requiring more than one hop).
This capability isn't currently used, and can be removed since TIPC
only supports systems in which all inter-node communication can be
achieved in a single hop.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/msg.c  |    6 +-----
 net/tipc/msg.h  |   12 +-----------
 net/tipc/port.c |   29 +----------------------------
 net/tipc/port.h |    2 --
 4 files changed, 3 insertions(+), 46 deletions(-)

diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index bb6180c..e56b9b8 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -2,7 +2,7 @@
  * net/tipc/msg.c: TIPC message header routines
  *
  * Copyright (c) 2000-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -381,14 +381,10 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str)
 			tipc_printf(buf, ":OPRT(%u):", msg_origport(msg));
 			tipc_printf(buf, ":DPRT(%u):", msg_destport(msg));
 		}
-		if (msg_routed(msg) && !msg_non_seq(msg))
-			tipc_printf(buf, ":TSEQN(%u)", msg_transp_seqno(msg));
 	}
 	if (msg_user(msg) == NAME_DISTRIBUTOR) {
 		tipc_printf(buf, ":ONOD(%x):", msg_orignode(msg));
 		tipc_printf(buf, ":DNOD(%x):", msg_destnode(msg));
-		if (msg_routed(msg))
-			tipc_printf(buf, ":CSEQN(%u)", msg_transp_seqno(msg));
 	}
 
 	if (msg_user(msg) ==  LINK_CONFIG) {
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 92c4c4f..b1438c7 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -2,7 +2,7 @@
  * net/tipc/msg.h: Include file for TIPC message header routines
  *
  * Copyright (c) 2000-2007, Ericsson AB
- * Copyright (c) 2005-2008, Wind River Systems
+ * Copyright (c) 2005-2008, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -438,11 +438,6 @@ static inline void msg_set_nametype(struct tipc_msg *m, u32 n)
 	msg_set_word(m, 8, n);
 }
 
-static inline u32 msg_transp_seqno(struct tipc_msg *m)
-{
-	return msg_word(m, 8);
-}
-
 static inline void msg_set_timestamp(struct tipc_msg *m, u32 n)
 {
 	msg_set_word(m, 8, n);
@@ -453,11 +448,6 @@ static inline u32 msg_timestamp(struct tipc_msg *m)
 	return msg_word(m, 8);
 }
 
-static inline void msg_set_transp_seqno(struct tipc_msg *m, u32 n)
-{
-	msg_set_word(m, 8, n);
-}
-
 static inline u32 msg_nameinst(struct tipc_msg *m)
 {
 	return msg_word(m, 9);
diff --git a/net/tipc/port.c b/net/tipc/port.c
index 3e5122c..6ff78f9 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -69,20 +69,6 @@ static u32 port_peerport(struct tipc_port *p_ptr)
 	return msg_destport(&p_ptr->phdr);
 }
 
-static u32 port_out_seqno(struct tipc_port *p_ptr)
-{
-	return msg_transp_seqno(&p_ptr->phdr);
-}
-
-static void port_incr_out_seqno(struct tipc_port *p_ptr)
-{
-	struct tipc_msg *m = &p_ptr->phdr;
-
-	if (likely(!msg_routed(m)))
-		return;
-	msg_set_transp_seqno(m, (msg_transp_seqno(m) + 1));
-}
-
 /**
  * tipc_multicast - send a multicast message to local and remote destinations
  */
@@ -233,7 +219,6 @@ struct tipc_port *tipc_createport_raw(void *usr_handle,
 	msg = &p_ptr->phdr;
 	tipc_msg_init(msg, importance, TIPC_NAMED_MSG, LONG_H_SIZE, 0);
 	msg_set_origport(msg, ref);
-	p_ptr->last_in_seqno = 41;
 	INIT_LIST_HEAD(&p_ptr->wait_list);
 	INIT_LIST_HEAD(&p_ptr->subscription.nodesub_list);
 	p_ptr->dispatcher = dispatcher;
@@ -344,7 +329,7 @@ int tipc_set_portunreturnable(u32 ref, unsigned int isunrejectable)
 static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode,
 					    u32 origport, u32 orignode,
 					    u32 usr, u32 type, u32 err,
-					    u32 seqno, u32 ack)
+					    u32 ack)
 {
 	struct sk_buff *buf;
 	struct tipc_msg *msg;
@@ -357,7 +342,6 @@ static struct sk_buff *port_build_proto_msg(u32 destport, u32 destnode,
 		msg_set_destport(msg, destport);
 		msg_set_origport(msg, origport);
 		msg_set_orignode(msg, orignode);
-		msg_set_transp_seqno(msg, seqno);
 		msg_set_msgcnt(msg, ack);
 	}
 	return buf;
@@ -467,9 +451,7 @@ static void port_timeout(unsigned long ref)
 					   CONN_MANAGER,
 					   CONN_PROBE,
 					   TIPC_OK,
-					   port_out_seqno(p_ptr),
 					   0);
-		port_incr_out_seqno(p_ptr);
 		p_ptr->probing_state = PROBING;
 		k_start_timer(&p_ptr->timer, p_ptr->probing_interval);
 	}
@@ -506,7 +488,6 @@ static struct sk_buff *port_build_self_abort_msg(struct tipc_port *p_ptr, u32 er
 				    imp,
 				    TIPC_CONN_MSG,
 				    err,
-				    p_ptr->last_in_seqno + 1,
 				    0);
 }
 
@@ -526,7 +507,6 @@ static struct sk_buff *port_build_peer_abort_msg(struct tipc_port *p_ptr, u32 er
 				    imp,
 				    TIPC_CONN_MSG,
 				    err,
-				    port_out_seqno(p_ptr),
 				    0);
 }
 
@@ -568,7 +548,6 @@ void tipc_port_recv_proto_msg(struct sk_buff *buf)
 					     TIPC_HIGH_IMPORTANCE,
 					     TIPC_CONN_MSG,
 					     err,
-					     0,
 					     0);
 		goto exit;
 	}
@@ -582,11 +561,9 @@ void tipc_port_recv_proto_msg(struct sk_buff *buf)
 					     CONN_MANAGER,
 					     CONN_PROBE_REPLY,
 					     TIPC_OK,
-					     port_out_seqno(p_ptr),
 					     0);
 	}
 	p_ptr->probing_state = CONFIRMED;
-	port_incr_out_seqno(p_ptr);
 exit:
 	if (p_ptr)
 		tipc_port_unlock(p_ptr);
@@ -914,7 +891,6 @@ void tipc_acknowledge(u32 ref, u32 ack)
 					   CONN_MANAGER,
 					   CONN_ACK,
 					   TIPC_OK,
-					   port_out_seqno(p_ptr),
 					   ack);
 	}
 	tipc_port_unlock(p_ptr);
@@ -1088,7 +1064,6 @@ int tipc_connect2port(u32 ref, struct tipc_portid const *peer)
 	msg_set_destport(msg, peer->ref);
 	msg_set_orignode(msg, tipc_own_addr);
 	msg_set_origport(msg, p_ptr->ref);
-	msg_set_transp_seqno(msg, 42);
 	msg_set_type(msg, TIPC_CONN_MSG);
 	msg_set_hdr_sz(msg, SHORT_H_SIZE);
 
@@ -1170,7 +1145,6 @@ int tipc_shutdown(u32 ref)
 					   imp,
 					   TIPC_CONN_MSG,
 					   TIPC_CONN_SHUTDOWN,
-					   port_out_seqno(p_ptr),
 					   0);
 	}
 	tipc_port_unlock(p_ptr);
@@ -1220,7 +1194,6 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect)
 			res = tipc_port_recv_sections(p_ptr, num_sect, msg_sect);
 
 		if (likely(res != -ELINKCONG)) {
-			port_incr_out_seqno(p_ptr);
 			p_ptr->congested = 0;
 			if (res > 0)
 				p_ptr->sent++;
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 34ccb7c..87b9424 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -119,7 +119,6 @@ struct user_port {
  * @pub_count: total # of publications port has made during its lifetime
  * @probing_state:
  * @probing_interval:
- * @last_in_seqno:
  * @timer_ref:
  * @subscription: "node down" subscription used to terminate failed connections
  */
@@ -147,7 +146,6 @@ struct tipc_port {
 	u32 pub_count;
 	u32 probing_state;
 	u32 probing_interval;
-	u32 last_in_seqno;
 	struct timer_list timer;
 	struct tipc_node_subscr subscription;
 };
-- 
1.7.3.3

[PATCH net-next 16/17] tipc: Remove unused message header field for requested number of links

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Eliminates support for the "number of requested links" field in a neighbor
discovery message. This field was never used and has been removed from
the TIPC 2.0 protocol specification.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/bearer.c   |    2 +-
 net/tipc/discover.c |   11 +++--------
 net/tipc/discover.h |    3 +--
 net/tipc/msg.c      |    1 -
 net/tipc/msg.h      |   10 ----------
 5 files changed, 5 insertions(+), 22 deletions(-)

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 9e2ff0e..f2839b0 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -566,7 +566,7 @@ restart:
 	INIT_LIST_HEAD(&b_ptr->links);
 	if (m_ptr->bcast) {
 		b_ptr->link_req = tipc_disc_init_link_req(b_ptr, &m_ptr->bcast_addr,
-							  bcast_scope, 2);
+							  bcast_scope);
 	}
 	spin_lock_init(&b_ptr->lock);
 	write_unlock_bh(&tipc_net_lock);
diff --git a/net/tipc/discover.c b/net/tipc/discover.c
index 59a86fc..09ce231 100644
--- a/net/tipc/discover.c
+++ b/net/tipc/discover.c
@@ -67,13 +67,11 @@ struct link_req {
 /**
  * tipc_disc_init_msg - initialize a link setup message
  * @type: message type (request or response)
- * @req_links: number of links associated with message
  * @dest_domain: network domain of node(s) which should respond to message
  * @b_ptr: ptr to bearer issuing message
  */
 
 static struct sk_buff *tipc_disc_init_msg(u32 type,
-					  u32 req_links,
 					  u32 dest_domain,
 					  struct tipc_bearer *b_ptr)
 {
@@ -84,7 +82,6 @@ static struct sk_buff *tipc_disc_init_msg(u32 type,
 		msg = buf_msg(buf);
 		tipc_msg_init(msg, LINK_CONFIG, type, DSC_H_SIZE, dest_domain);
 		msg_set_non_seq(msg, 1);
-		msg_set_req_links(msg, req_links);
 		msg_set_dest_domain(msg, dest_domain);
 		msg_set_bc_netid(msg, tipc_net_id);
 		msg_set_media_addr(msg, &b_ptr->addr);
@@ -191,7 +188,7 @@ void tipc_disc_recv_msg(struct sk_buff *buf, struct tipc_bearer *b_ptr)
 		spin_unlock_bh(&n_ptr->lock);
 		if ((type == DSC_RESP_MSG) || link_fully_up)
 			return;
-		rbuf = tipc_disc_init_msg(DSC_RESP_MSG, 1, orig, b_ptr);
+		rbuf = tipc_disc_init_msg(DSC_RESP_MSG, orig, b_ptr);
 		if (rbuf != NULL) {
 			b_ptr->media->send_msg(rbuf, b_ptr, &media_addr);
 			buf_discard(rbuf);
@@ -274,15 +271,13 @@ static void disc_timeout(struct link_req *req)
  * @b_ptr: ptr to bearer issuing requests
  * @dest: destination address for request messages
  * @dest_domain: network domain of node(s) which should respond to message
- * @req_links: max number of desired links
  *
  * Returns pointer to link request structure, or NULL if unable to create.
  */
 
 struct link_req *tipc_disc_init_link_req(struct tipc_bearer *b_ptr,
 					 const struct tipc_media_addr *dest,
-					 u32 dest_domain,
-					 u32 req_links)
+					 u32 dest_domain)
 {
 	struct link_req *req;
 
@@ -290,7 +285,7 @@ struct link_req *tipc_disc_init_link_req(struct tipc_bearer *b_ptr,
 	if (!req)
 		return NULL;
 
-	req->buf = tipc_disc_init_msg(DSC_REQ_MSG, req_links, dest_domain, b_ptr);
+	req->buf = tipc_disc_init_msg(DSC_REQ_MSG, dest_domain, b_ptr);
 	if (!req->buf) {
 		kfree(req);
 		return NULL;
diff --git a/net/tipc/discover.h b/net/tipc/discover.h
index 4046d77..e48a167 100644
--- a/net/tipc/discover.h
+++ b/net/tipc/discover.h
@@ -41,8 +41,7 @@ struct link_req;
 
 struct link_req *tipc_disc_init_link_req(struct tipc_bearer *b_ptr,
 					 const struct tipc_media_addr *dest,
-					 u32 dest_domain,
-					 u32 req_links);
+					 u32 dest_domain);
 void tipc_disc_update_link_req(struct link_req *req);
 void tipc_disc_stop_link_req(struct link_req *req);
 
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index e56b9b8..0787e12 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -390,7 +390,6 @@ void tipc_msg_dbg(struct print_buf *buf, struct tipc_msg *msg, const char *str)
 	if (msg_user(msg) ==  LINK_CONFIG) {
 		u32 *raw = (u32 *)msg;
 		struct tipc_media_addr *orig = (struct tipc_media_addr *)&raw[5];
-		tipc_printf(buf, ":REQL(%u):", msg_req_links(msg));
 		tipc_printf(buf, ":DDOM(%x):", msg_dest_domain(msg));
 		tipc_printf(buf, ":NETID(%u):", msg_bc_netid(msg));
 		tipc_media_addr_printf(buf, orig);
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index b1438c7..9d643a1 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -567,16 +567,6 @@ static inline void msg_set_seq_gap(struct tipc_msg *m, u32 n)
 	msg_set_bits(m, 1, 16, 0x1fff, n);
 }
 
-static inline u32 msg_req_links(struct tipc_msg *m)
-{
-	return msg_bits(m, 1, 16, 0xfff);
-}
-
-static inline void msg_set_req_links(struct tipc_msg *m, u32 n)
-{
-	msg_set_bits(m, 1, 16, 0xfff, n);
-}
-
 
 /*
  * Word 2
-- 
1.7.3.3

[PATCH net-next 17/17] tipc: Avoid reliable broadcast preparation for NACK messages

[Paul Gortmaker]

From: Allan Stephens <Allan.Stephens@windriver.com>

Enhance TIPC to skip unnecessary (and, in some cases, redundant)
preparation work when sending a broadcast link NACK message, since this
preparation is only required for broadcast messages that are sent in a
reliable manner. This change also fixes a bug that caused NACK messages
to be improperly counted as "TX packets" in TIPC's broadcast link
statistics.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
 net/tipc/bcast.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 63df42b..7dc1dc7 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -298,6 +298,7 @@ static void bclink_send_nack(struct tipc_node *n_ptr)
 		msg = buf_msg(buf);
 		tipc_msg_init(msg, BCAST_PROTOCOL, STATE_MSG,
 			 INT_H_SIZE, n_ptr->addr);
+		msg_set_non_seq(msg, 1);
 		msg_set_mc_netid(msg, tipc_net_id);
 		msg_set_bcast_ack(msg, mod(n_ptr->bclink.last_in));
 		msg_set_bcgap_after(msg, n_ptr->bclink.gap_after);
-- 
1.7.3.3

Re: [PATCH net-next 00/17] TIPC: Another mixed bag of cleanups and bugfixes

[David Miller]

From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Wed, 23 Feb 2011 20:26:28 -0500

> We are still seeing some rewards from dumping the native API stuff,
> things like the top two struct amalgamation commits are a direct
> result of that.  The rest is just a mixed bag of largely unrelated
> small bugfixes and other cleanups as summarized below.

Looks great, pulled, thanks a lot!