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diff --git a/net/tipc/port.h b/net/tipc/port.h
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+/*
+ * net/tipc/port.h: Include file for TIPC port code
+ *
+ * Copyright (c) 1994-2007, 2014, Ericsson AB
+ * Copyright (c) 2004-2007, 2010-2013, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _TIPC_PORT_H
+#define _TIPC_PORT_H
+
+#include "ref.h"
+#include "net.h"
+#include "msg.h"
+#include "node_subscr.h"
+
+#define TIPC_CONNACK_INTV         256
+#define TIPC_FLOWCTRL_WIN        (TIPC_CONNACK_INTV * 2)
+#define TIPC_CONN_OVERLOAD_LIMIT ((TIPC_FLOWCTRL_WIN * 2 + 1) * \
+				  SKB_TRUESIZE(TIPC_MAX_USER_MSG_SIZE))
+
+/**
+ * struct tipc_port - TIPC port structure
+ * @lock: pointer to spinlock for controlling access to port
+ * @connected: non-zero if port is currently connected to a peer port
+ * @conn_type: TIPC type used when connection was established
+ * @conn_instance: TIPC instance used when connection was established
+ * @conn_unacked: number of unacknowledged messages received from peer port
+ * @published: non-zero if port has one or more associated names
+ * @congested: non-zero if cannot send because of link or port congestion
+ * @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
+ * @port_list: adjacent ports in TIPC's global list of ports
+ * @wait_list: adjacent ports in list of ports waiting on link congestion
+ * @waiting_pkts:
+ * @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:
+ * @probing_interval:
+ * @timer_ref:
+ * @subscription: "node down" subscription used to terminate failed connections
+ */
+struct tipc_port {
+	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;
+	struct list_head wait_list;
+	u32 waiting_pkts;
+	u32 sent;
+	u32 acked;
+	struct list_head publications;
+	u32 pub_count;
+	u32 probing_state;
+	u32 probing_interval;
+	struct timer_list timer;
+	struct tipc_node_subscr subscription;
+};
+
+extern spinlock_t tipc_port_list_lock;
+struct tipc_port_list;
+
+/*
+ * TIPC port manipulation routines
+ */
+u32 tipc_port_init(struct tipc_port *p_ptr,
+		   const unsigned int importance);
+
+int tipc_reject_msg(struct sk_buff *buf, u32 err);
+
+void tipc_acknowledge(u32 port_ref, u32 ack);
+
+void tipc_port_destroy(struct tipc_port *p_ptr);
+
+int tipc_publish(struct tipc_port *p_ptr, unsigned int scope,
+		 struct tipc_name_seq const *name_seq);
+
+int tipc_withdraw(struct tipc_port *p_ptr, unsigned int scope,
+		  struct tipc_name_seq const *name_seq);
+
+int tipc_port_connect(u32 portref, struct tipc_portid const *port);
+
+int tipc_port_disconnect(u32 portref);
+
+int tipc_port_shutdown(u32 ref);
+
+void tipc_port_wakeup(struct tipc_port *port);
+
+/*
+ * The following routines require that the port be locked on entry
+ */
+int __tipc_port_disconnect(struct tipc_port *tp_ptr);
+int __tipc_port_connect(u32 ref, struct tipc_port *p_ptr,
+		   struct tipc_portid const *peer);
+int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg);
+
+/*
+ * TIPC messaging routines
+ */
+
+int tipc_send(struct tipc_port *port,
+	      struct iovec const *msg_sect,
+	      unsigned int len);
+
+int tipc_send2name(struct tipc_port *port,
+		   struct tipc_name const *name,
+		   u32 domain,
+		   struct iovec const *msg_sect,
+		   unsigned int len);
+
+int tipc_send2port(struct tipc_port *port,
+		   struct tipc_portid const *dest,
+		   struct iovec const *msg_sect,
+		   unsigned int len);
+
+int tipc_port_mcast_xmit(struct tipc_port *port,
+			 struct tipc_name_seq const *seq,
+			 struct iovec const *msg,
+			 unsigned int len);
+
+int tipc_port_iovec_reject(struct tipc_port *p_ptr,
+			   struct tipc_msg *hdr,
+			   struct iovec const *msg_sect,
+			   unsigned int len,
+			   int err);
+
+struct sk_buff *tipc_port_get_ports(void);
+void tipc_port_proto_rcv(struct sk_buff *buf);
+void tipc_port_mcast_rcv(struct sk_buff *buf, struct tipc_port_list *dp);
+void tipc_port_reinit(void);
+
+/**
+ * tipc_port_lock - lock port instance referred to and return its pointer
+ */
+static inline struct tipc_port *tipc_port_lock(u32 ref)
+{
+	return (struct tipc_port *)tipc_ref_lock(ref);
+}
+
+/**
+ * tipc_port_unlock - unlock a port instance
+ *
+ * Can use pointer instead of tipc_ref_unlock() since port is already locked.
+ */
+static inline void tipc_port_unlock(struct tipc_port *p_ptr)
+{
+	spin_unlock_bh(p_ptr->lock);
+}
+
+static inline int tipc_port_congested(struct tipc_port *p_ptr)
+{
+	return ((p_ptr->sent - p_ptr->acked) >= TIPC_FLOWCTRL_WIN);
+}
+
+
+static inline u32 tipc_port_peernode(struct tipc_port *p_ptr)
+{
+	return msg_destnode(&p_ptr->phdr);
+}
+
+static inline u32 tipc_port_peerport(struct tipc_port *p_ptr)
+{
+	return msg_destport(&p_ptr->phdr);
+}
+
+static inline  bool tipc_port_unreliable(struct tipc_port *port)
+{
+	return msg_src_droppable(&port->phdr) != 0;
+}
+
+static inline void tipc_port_set_unreliable(struct tipc_port *port,
+					    bool unreliable)
+{
+	msg_set_src_droppable(&port->phdr, unreliable ? 1 : 0);
+}
+
+static inline bool tipc_port_unreturnable(struct tipc_port *port)
+{
+	return msg_dest_droppable(&port->phdr) != 0;
+}
+
+static inline void tipc_port_set_unreturnable(struct tipc_port *port,
+					     bool unreturnable)
+{
+	msg_set_dest_droppable(&port->phdr, unreturnable ? 1 : 0);
+}
+
+
+static inline int tipc_port_importance(struct tipc_port *port)
+{
+	return msg_importance(&port->phdr);
+}
+
+static inline void tipc_port_set_importance(struct tipc_port *port, int imp)
+{
+	msg_set_importance(&port->phdr, (u32)imp);
+}
+
+#endif