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Commit | Line | Data |
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1da177e4 LT |
1 | #ifndef _ASM_GENERIC_BUG_H |
2 | #define _ASM_GENERIC_BUG_H | |
3 | ||
4 | #include <linux/compiler.h> | |
1da177e4 | 5 | |
c8538a7a | 6 | #ifdef CONFIG_BUG |
7664c5a1 JF |
7 | |
8 | #ifdef CONFIG_GENERIC_BUG | |
9 | #ifndef __ASSEMBLY__ | |
10 | struct bug_entry { | |
b93a531e | 11 | #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS |
7664c5a1 | 12 | unsigned long bug_addr; |
b93a531e JB |
13 | #else |
14 | signed int bug_addr_disp; | |
15 | #endif | |
7664c5a1 | 16 | #ifdef CONFIG_DEBUG_BUGVERBOSE |
b93a531e | 17 | #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS |
7664c5a1 | 18 | const char *file; |
b93a531e JB |
19 | #else |
20 | signed int file_disp; | |
21 | #endif | |
7664c5a1 JF |
22 | unsigned short line; |
23 | #endif | |
24 | unsigned short flags; | |
25 | }; | |
26 | #endif /* __ASSEMBLY__ */ | |
27 | ||
28 | #define BUGFLAG_WARNING (1<<0) | |
29 | #endif /* CONFIG_GENERIC_BUG */ | |
30 | ||
1da177e4 LT |
31 | #ifndef HAVE_ARCH_BUG |
32 | #define BUG() do { \ | |
d5c003b4 | 33 | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \ |
1da177e4 LT |
34 | panic("BUG!"); \ |
35 | } while (0) | |
36 | #endif | |
37 | ||
1da177e4 | 38 | #ifndef HAVE_ARCH_BUG_ON |
2a41de48 | 39 | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0) |
1da177e4 LT |
40 | #endif |
41 | ||
3a6a62f9 | 42 | #ifndef __WARN |
79b4cc5e | 43 | #ifndef __ASSEMBLY__ |
a8f18b90 AV |
44 | extern void warn_slowpath(const char *file, const int line, |
45 | const char *fmt, ...) __attribute__((format(printf, 3, 4))); | |
79b4cc5e AV |
46 | #define WANT_WARN_ON_SLOWPATH |
47 | #endif | |
ec5679e5 IM |
48 | #define __WARN() warn_slowpath(__FILE__, __LINE__, NULL) |
49 | #define __WARN_printf(arg...) warn_slowpath(__FILE__, __LINE__, arg) | |
a8f18b90 | 50 | #else |
ec5679e5 | 51 | #define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0) |
3a6a62f9 OJ |
52 | #endif |
53 | ||
54 | #ifndef WARN_ON | |
684f9783 | 55 | #define WARN_ON(condition) ({ \ |
8d4fbcfb | 56 | int __ret_warn_on = !!(condition); \ |
3a6a62f9 OJ |
57 | if (unlikely(__ret_warn_on)) \ |
58 | __WARN(); \ | |
684f9783 HX |
59 | unlikely(__ret_warn_on); \ |
60 | }) | |
1da177e4 LT |
61 | #endif |
62 | ||
a8f18b90 AV |
63 | #ifndef WARN |
64 | #define WARN(condition, format...) ({ \ | |
65 | int __ret_warn_on = !!(condition); \ | |
66 | if (unlikely(__ret_warn_on)) \ | |
67 | __WARN_printf(format); \ | |
68 | unlikely(__ret_warn_on); \ | |
69 | }) | |
70 | #endif | |
71 | ||
c8538a7a MM |
72 | #else /* !CONFIG_BUG */ |
73 | #ifndef HAVE_ARCH_BUG | |
74 | #define BUG() | |
75 | #endif | |
76 | ||
c8538a7a MM |
77 | #ifndef HAVE_ARCH_BUG_ON |
78 | #define BUG_ON(condition) do { if (condition) ; } while(0) | |
79 | #endif | |
80 | ||
81 | #ifndef HAVE_ARCH_WARN_ON | |
8c7c7c9b | 82 | #define WARN_ON(condition) ({ \ |
8d4fbcfb | 83 | int __ret_warn_on = !!(condition); \ |
8c7c7c9b RB |
84 | unlikely(__ret_warn_on); \ |
85 | }) | |
c8538a7a | 86 | #endif |
a8f18b90 AV |
87 | |
88 | #ifndef WARN | |
89 | #define WARN(condition, format...) ({ \ | |
90 | int __ret_warn_on = !!(condition); \ | |
91 | unlikely(__ret_warn_on); \ | |
92 | }) | |
93 | #endif | |
94 | ||
c8538a7a MM |
95 | #endif |
96 | ||
d69a8922 AM |
97 | #define WARN_ON_ONCE(condition) ({ \ |
98 | static int __warned; \ | |
8d4fbcfb | 99 | int __ret_warn_once = !!(condition); \ |
d69a8922 AM |
100 | \ |
101 | if (unlikely(__ret_warn_once)) \ | |
102 | if (WARN_ON(!__warned)) \ | |
103 | __warned = 1; \ | |
104 | unlikely(__ret_warn_once); \ | |
74bb6a09 IM |
105 | }) |
106 | ||
45e9c0de AV |
107 | #define WARN_ONCE(condition, format...) ({ \ |
108 | static int __warned; \ | |
109 | int __ret_warn_once = !!(condition); \ | |
110 | \ | |
111 | if (unlikely(__ret_warn_once)) \ | |
112 | if (WARN(!__warned, format)) \ | |
113 | __warned = 1; \ | |
114 | unlikely(__ret_warn_once); \ | |
115 | }) | |
116 | ||
717115e1 DY |
117 | #define WARN_ON_RATELIMIT(condition, state) \ |
118 | WARN_ON((condition) && __ratelimit(state)) | |
119 | ||
8eb94f80 IM |
120 | #ifdef CONFIG_SMP |
121 | # define WARN_ON_SMP(x) WARN_ON(x) | |
122 | #else | |
123 | # define WARN_ON_SMP(x) do { } while (0) | |
124 | #endif | |
125 | ||
1da177e4 | 126 | #endif |