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gerrit-public.fairphone.software / kernel / msm / 22b132102f1540dd40f3e41df88796829b685f1a / . / include / asm-generic / bug.h
blob: 2632328d8646840aab41c8e401a1088e922754f2 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#ifndef _ASM_GENERIC_BUG_H
2#define _ASM_GENERIC_BUG_H
3
4#include <linux/compiler.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]5
Matt Mackallc8538a72005-05-01 08:59:01 -0700[diff] [blame]6#ifdef CONFIG_BUG
Jeremy Fitzhardinge7664c5a2006-12-08 02:36:19 -0800[diff] [blame]7
8#ifdef CONFIG_GENERIC_BUG
9#ifndef __ASSEMBLY__
10struct bug_entry {
11 unsigned long bug_addr;
12#ifdef CONFIG_DEBUG_BUGVERBOSE
13 const char *file;
14 unsigned short line;
15#endif
16 unsigned short flags;
17};
18#endif /* __ASSEMBLY__ */
19
20#define BUGFLAG_WARNING (1<<0)
21#endif /* CONFIG_GENERIC_BUG */
22
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]23#ifndef HAVE_ARCH_BUG
24#define BUG() do { \
Ingo Molnar91368d72006-03-23 03:00:54 -0800[diff] [blame]25 printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]26 panic("BUG!"); \
27} while (0)
28#endif
29
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]30#ifndef HAVE_ARCH_BUG_ON
Alexey Dobriyan2a41de42007-07-17 04:03:56 -0700[diff] [blame]31#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]32#endif
33
Olof Johansson3a6a62f2008-01-30 13:32:50 +0100[diff] [blame]34#ifndef __WARN
Arjan van de Ven79b4cc52008-01-30 13:32:50 +0100[diff] [blame]35#ifndef __ASSEMBLY__
36extern void warn_on_slowpath(const char *file, const int line);
37#define WANT_WARN_ON_SLOWPATH
38#endif
39#define __WARN() warn_on_slowpath(__FILE__, __LINE__)
Olof Johansson3a6a62f2008-01-30 13:32:50 +0100[diff] [blame]40#endif
41
42#ifndef WARN_ON
Herbert Xu684f9782006-09-29 01:59:06 -0700[diff] [blame]43#define WARN_ON(condition) ({ \
Linus Torvalds8d4fbcf2007-07-31 21:12:07 -0700[diff] [blame]44 int __ret_warn_on = !!(condition); \
Olof Johansson3a6a62f2008-01-30 13:32:50 +0100[diff] [blame]45 if (unlikely(__ret_warn_on)) \
46 __WARN(); \
Herbert Xu684f9782006-09-29 01:59:06 -0700[diff] [blame]47 unlikely(__ret_warn_on); \
48})
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]49#endif
50
Matt Mackallc8538a72005-05-01 08:59:01 -0700[diff] [blame]51#else /* !CONFIG_BUG */
52#ifndef HAVE_ARCH_BUG
53#define BUG()
54#endif
55
Matt Mackallc8538a72005-05-01 08:59:01 -0700[diff] [blame]56#ifndef HAVE_ARCH_BUG_ON
57#define BUG_ON(condition) do { if (condition) ; } while(0)
58#endif
59
60#ifndef HAVE_ARCH_WARN_ON
Ralf Baechle8c7c7c92006-10-19 23:28:34 -0700[diff] [blame]61#define WARN_ON(condition) ({ \
Linus Torvalds8d4fbcf2007-07-31 21:12:07 -0700[diff] [blame]62 int __ret_warn_on = !!(condition); \
Ralf Baechle8c7c7c92006-10-19 23:28:34 -0700[diff] [blame]63 unlikely(__ret_warn_on); \
64})
Matt Mackallc8538a72005-05-01 08:59:01 -0700[diff] [blame]65#endif
66#endif
67
Andrew Mortond69a8922006-10-06 00:43:49 -0700[diff] [blame]68#define WARN_ON_ONCE(condition) ({ \
69 static int __warned; \
Linus Torvalds8d4fbcf2007-07-31 21:12:07 -0700[diff] [blame]70 int __ret_warn_once = !!(condition); \
Andrew Mortond69a8922006-10-06 00:43:49 -0700[diff] [blame]71 \
72 if (unlikely(__ret_warn_once)) \
73 if (WARN_ON(!__warned)) \
74 __warned = 1; \
75 unlikely(__ret_warn_once); \
Ingo Molnar74bb6a02006-06-25 05:48:09 -0700[diff] [blame]76})
77
Ingo Molnar8eb94f82006-06-27 02:54:50 -0700[diff] [blame]78#ifdef CONFIG_SMP
79# define WARN_ON_SMP(x) WARN_ON(x)
80#else
81# define WARN_ON_SMP(x) do { } while (0)
82#endif
83
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]84#endif