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 */

 
 1/* Copyright 2011-2014 Autronica Fire and Security AS
 2 *
 3 * This program is free software; you can redistribute it and/or modify it
 4 * under the terms of the GNU General Public License as published by the Free
 5 * Software Foundation; either version 2 of the License, or (at your option)
 6 * any later version.
 7 *
 8 * Author(s):
 9 *	2011-2014 Arvid Brodin, arvid.brodin@alten.se
10 */
11
12#ifndef __HSR_SLAVE_H
13#define __HSR_SLAVE_H
14
15#include <linux/skbuff.h>
16#include <linux/netdevice.h>
17#include <linux/rtnetlink.h>
18#include "hsr_main.h"
19
20int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
21		 enum hsr_port_type pt);
22void hsr_del_port(struct hsr_port *port);
23bool hsr_port_exists(const struct net_device *dev);
24
25static inline struct hsr_port *hsr_port_get_rtnl(const struct net_device *dev)
26{
27	ASSERT_RTNL();
28	return hsr_port_exists(dev) ?
29				rtnl_dereference(dev->rx_handler_data) : NULL;
30}
31
32static inline struct hsr_port *hsr_port_get_rcu(const struct net_device *dev)
33{
34	return hsr_port_exists(dev) ?
35				rcu_dereference(dev->rx_handler_data) : NULL;
36}
37
38#endif /* __HSR_SLAVE_H */