debug warnings: eliminate warn_on_slowpath()
[deliverable/linux.git] / 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__, __func__); \
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_slowpath(const char *file, const int line,
37 const char *fmt, ...) __attribute__((format(printf, 3, 4)));
38 #define WANT_WARN_ON_SLOWPATH
39 #endif
40 #define __WARN() warn_slowpath(__FILE__, __LINE__, NULL)
41 #define __WARN_printf(arg...) warn_slowpath(__FILE__, __LINE__, arg)
42 #else
43 #define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0)
44 #endif
45
46 #ifndef WARN_ON
47 #define WARN_ON(condition) ({ \
48 int __ret_warn_on = !!(condition); \
49 if (unlikely(__ret_warn_on)) \
50 __WARN(); \
51 unlikely(__ret_warn_on); \
52 })
53 #endif
54
55 #ifndef WARN
56 #define WARN(condition, format...) ({ \
57 int __ret_warn_on = !!(condition); \
58 if (unlikely(__ret_warn_on)) \
59 __WARN_printf(format); \
60 unlikely(__ret_warn_on); \
61 })
62 #endif
63
64 #else /* !CONFIG_BUG */
65 #ifndef HAVE_ARCH_BUG
66 #define BUG()
67 #endif
68
69 #ifndef HAVE_ARCH_BUG_ON
70 #define BUG_ON(condition) do { if (condition) ; } while(0)
71 #endif
72
73 #ifndef HAVE_ARCH_WARN_ON
74 #define WARN_ON(condition) ({ \
75 int __ret_warn_on = !!(condition); \
76 unlikely(__ret_warn_on); \
77 })
78 #endif
79
80 #ifndef WARN
81 #define WARN(condition, format...) ({ \
82 int __ret_warn_on = !!(condition); \
83 unlikely(__ret_warn_on); \
84 })
85 #endif
86
87 #endif
88
89 #define WARN_ON_ONCE(condition) ({ \
90 static int __warned; \
91 int __ret_warn_once = !!(condition); \
92 \
93 if (unlikely(__ret_warn_once)) \
94 if (WARN_ON(!__warned)) \
95 __warned = 1; \
96 unlikely(__ret_warn_once); \
97 })
98
99 #define WARN_ONCE(condition, format...) ({ \
100 static int __warned; \
101 int __ret_warn_once = !!(condition); \
102 \
103 if (unlikely(__ret_warn_once)) \
104 if (WARN(!__warned, format)) \
105 __warned = 1; \
106 unlikely(__ret_warn_once); \
107 })
108
109 #define WARN_ON_RATELIMIT(condition, state) \
110 WARN_ON((condition) && __ratelimit(state))
111
112 #ifdef CONFIG_SMP
113 # define WARN_ON_SMP(x) WARN_ON(x)
114 #else
115 # define WARN_ON_SMP(x) do { } while (0)
116 #endif
117
118 #endif
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