https://github.com/torvalds/linux
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Tip revision: 3123109284176b1532874591f7c81f3837bbdc17 authored by Linus Torvalds on 03 April 2022, 21:08:21 UTC
Linux 5.18-rc1
Tip revision: 3123109
led.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright 2012, Fabio Baltieri <fabio.baltieri@gmail.com>
 */

#ifndef _CAN_LED_H
#define _CAN_LED_H

#include <linux/if.h>
#include <linux/leds.h>
#include <linux/netdevice.h>

enum can_led_event {
	CAN_LED_EVENT_OPEN,
	CAN_LED_EVENT_STOP,
	CAN_LED_EVENT_TX,
	CAN_LED_EVENT_RX,
};

#ifdef CONFIG_CAN_LEDS

/* keep space for interface name + "-tx"/"-rx"/"-rxtx"
 * suffix and null terminator
 */
#define CAN_LED_NAME_SZ (IFNAMSIZ + 6)

void can_led_event(struct net_device *netdev, enum can_led_event event);
void devm_can_led_init(struct net_device *netdev);
int __init can_led_notifier_init(void);
void __exit can_led_notifier_exit(void);

#else

static inline void can_led_event(struct net_device *netdev,
				 enum can_led_event event)
{
}
static inline void devm_can_led_init(struct net_device *netdev)
{
}
static inline int can_led_notifier_init(void)
{
	return 0;
}
static inline void can_led_notifier_exit(void)
{
}

#endif

#endif /* !_CAN_LED_H */
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