Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux...
[linux-2.6] / include / asm-generic / bug.h
1 #ifndef _ASM_GENERIC_BUG_H
2 #define _ASM_GENERIC_BUG_H
3
4 #include <linux/compiler.h>
5
6 #ifdef CONFIG_BUG
7
8 #ifdef CONFIG_GENERIC_BUG
9 #ifndef __ASSEMBLY__
10 struct 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
23 #ifndef HAVE_ARCH_BUG
24 #define BUG() do { \
25         printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
26         panic("BUG!"); \
27 } while (0)
28 #endif
29
30 #ifndef HAVE_ARCH_BUG_ON
31 #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0)
32 #endif
33
34 #ifndef __WARN
35 #ifndef __ASSEMBLY__
36 extern 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__)
40 #endif
41
42 #ifndef WARN_ON
43 #define WARN_ON(condition) ({                                           \
44         int __ret_warn_on = !!(condition);                              \
45         if (unlikely(__ret_warn_on))                                    \
46                 __WARN();                                               \
47         unlikely(__ret_warn_on);                                        \
48 })
49 #endif
50
51 #else /* !CONFIG_BUG */
52 #ifndef HAVE_ARCH_BUG
53 #define BUG()
54 #endif
55
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
61 #define WARN_ON(condition) ({                                           \
62         int __ret_warn_on = !!(condition);                              \
63         unlikely(__ret_warn_on);                                        \
64 })
65 #endif
66 #endif
67
68 #define WARN_ON_ONCE(condition) ({                              \
69         static int __warned;                                    \
70         int __ret_warn_once = !!(condition);                    \
71                                                                 \
72         if (unlikely(__ret_warn_once))                          \
73                 if (WARN_ON(!__warned))                         \
74                         __warned = 1;                           \
75         unlikely(__ret_warn_once);                              \
76 })
77
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
84 #endif