drm: Add BUILD_BUG_ON_MSG()
[dragonfly.git] / sys / dev / drm / include / linux / bug.h
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1/*
2 * Copyright (c) 2015 François Tigeot
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice unmodified, this list of conditions, and the following
10 * disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef LINUX_BUG_H
28#define LINUX_BUG_H
29
30#include <sys/cdefs.h>
31
32#define BUILD_BUG_ON(CONDITION) CTASSERT(!(CONDITION))
33
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34#define BUILD_BUG_ON_NOT_POWER_OF_2(n) \
35 CTASSERT(((n) != 0) && (((n) & ((n) - 1)) == 0))
36
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37#define BUILD_BUG() BUILD_BUG_ON(1)
38
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39#define BUILD_BUG_ON_MSG(cond, msg)
40
0effaaac 41#endif /* LINUX_BUG_H */