xref: /netbsd-src/sys/external/bsd/drm2/include/linux/notifier.h (revision 82d56013d7b633d116a93943de88e08335357a7c)
1 /*	$NetBSD: notifier.h,v 1.3 2018/08/27 07:18:18 riastradh Exp $	*/
2 
3 /*-
4  * Copyright (c) 2013 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Taylor R. Campbell.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _LINUX_NOTIFIER_H_
33 #define _LINUX_NOTIFIER_H_
34 
35 #include <sys/cdefs.h>
36 
37 #define	NOTIFY_DONE	0
38 #define	NOTIFY_OK	1
39 
40 struct notifier_block {
41 	int	(*notifier_call)(struct notifier_block *, unsigned long,
42 		    void *);
43 };
44 
45 struct atomic_notifier_head {
46 	char	anh_blahdittyblahblah;
47 };
48 
49 static struct atomic_notifier_head panic_notifier_list __unused;
50 
51 static inline void
52 atomic_notifier_chain_register(struct atomic_notifier_head *head __unused,
53     struct notifier_block *block __unused)
54 {
55 }
56 
57 static inline void
58 atomic_notifier_chain_unregister(struct atomic_notifier_head *head __unused,
59     struct notifier_block *block __unused)
60 {
61 }
62 
63 #endif  /* _LINUX_NOTIFIER_H_ */
64