[linux-2.6-block.git] / net / hsr / hsr_slave.h

/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright 2011-2014 Autronica Fire and Security AS
 *
 *	2011-2014 Arvid Brodin, arvid.brodin@alten.se
 */

#ifndef __HSR_SLAVE_H
#define __HSR_SLAVE_H

#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/rtnetlink.h>
#include "hsr_main.h"

int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
		 enum hsr_port_type pt);
void hsr_del_port(struct hsr_port *port);
bool hsr_port_exists(const struct net_device *dev);

static inline struct hsr_port *hsr_port_get_rtnl(const struct net_device *dev)
{
	ASSERT_RTNL();
	return hsr_port_exists(dev) ?
				rtnl_dereference(dev->rx_handler_data) : NULL;
}

static inline struct hsr_port *hsr_port_get_rcu(const struct net_device *dev)
{
	return hsr_port_exists(dev) ?
				rcu_dereference(dev->rx_handler_data) : NULL;
}

#endif /* __HSR_SLAVE_H */
Commit	Line	Data
0e7623bd	1	/* SPDX-License-Identifier: GPL-2.0 */
81ba6afd AB	2	/* Copyright 2011-2014 Autronica Fire and Security AS
81ba6afd AB	3	*
81ba6afd AB	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>
c5a75911	12	#include <linux/rtnetlink.h>
51f3c605	13	#include "hsr_main.h"
81ba6afd	14
c5a75911 AB	15	int hsr_add_port(struct hsr_priv hsr, struct net_device dev,
	16	enum hsr_port_type pt);
	17	void hsr_del_port(struct hsr_port *port);
f266a683	18	bool hsr_port_exists(const struct net_device *dev);
c5a75911 AB	19
	20	static 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
	27	static 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
81ba6afd	33	#endif /* __HSR_SLAVE_H */