1/* SPDX-License-Identifier: GPL-2.0 */
 2/* Copyright 2011-2014 Autronica Fire and Security AS
 3 *
 4 *	2011-2014 Arvid Brodin, arvid.brodin@alten.se
 5 */
 6
 7#ifndef __HSR_SLAVE_H
 8#define __HSR_SLAVE_H
 9
10#include <linux/skbuff.h>
11#include <linux/netdevice.h>
12#include <linux/rtnetlink.h>
13#include "hsr_main.h"
14
15int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
16		 enum hsr_port_type pt);
17void hsr_del_port(struct hsr_port *port);
18bool hsr_port_exists(const struct net_device *dev);
19
20static inline struct hsr_port *hsr_port_get_rtnl(const struct net_device *dev)
21{
22	ASSERT_RTNL();
23	return hsr_port_exists(dev) ?
24				rtnl_dereference(dev->rx_handler_data) : NULL;
25}
26
27static inline struct hsr_port *hsr_port_get_rcu(const struct net_device *dev)
28{
29	return hsr_port_exists(dev) ?
30				rcu_dereference(dev->rx_handler_data) : NULL;
31}
32
33#endif /* __HSR_SLAVE_H */