root/sys/dev/drm/include/linux/notifier.h
/*-
 * Copyright (c) 2010 Isilon Systems, Inc.
 * Copyright (c) 2010 iX Systems, Inc.
 * Copyright (c) 2010 Panasas, Inc.
 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
 * Copyright (c) 2017-2020 François Tigeot <ftigeot@wolfpond.org>
 * 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 unmodified, 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 _LINUX_NOTIFIER_H_
#define _LINUX_NOTIFIER_H_

#include <linux/errno.h>
#include <linux/mutex.h>
#include <linux/rwsem.h>

#include <sys/eventhandler.h>

/*
 * Max number of FreeBSD events to map to Linux events per notify type.
 */
#define NOTIFY_DONE     0
#define NOTIFY_OK       1
#define _NOTIFY_COUNT   7

struct notifier_block {
        int (*notifier_call)(struct notifier_block *, unsigned long, void *);
        struct notifier_block   *next;
        int                     priority;
        eventhandler_tag        tags[_NOTIFY_COUNT];
};

/* Values must be less than NOTIFY_COUNT */
#define NETDEV_UP               0x0001
#define NETDEV_DOWN             0x0002
#define NETDEV_REGISTER         0x0003
#define NETDEV_UNREGISTER       0x0004
#define NETDEV_CHANGEADDR       0x0005
#define NETDEV_CHANGEIFADDR     0x0006

struct atomic_notifier_head {
};

static inline void
ATOMIC_INIT_NOTIFIER_HEAD(struct atomic_notifier_head *anh)
{
}

static inline int
atomic_notifier_call_chain(struct atomic_notifier_head *anh,
                                        unsigned long val, void *v)
{
        return 0;
}

#endif  /* _LINUX_NOTIFIER_H_ */