Commit | Line | Data |
---|---|---|
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 { | |
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 | ||
1da177e4 LT |
23 | #ifndef HAVE_ARCH_BUG |
24 | #define BUG() do { \ | |
d5c003b4 | 25 | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \ |
1da177e4 LT |
26 | panic("BUG!"); \ |
27 | } while (0) | |
28 | #endif | |
29 | ||
1da177e4 | 30 | #ifndef HAVE_ARCH_BUG_ON |
2a41de48 | 31 | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0) |
1da177e4 LT |
32 | #endif |
33 | ||
3a6a62f9 | 34 | #ifndef __WARN |
79b4cc5e AV |
35 | #ifndef __ASSEMBLY__ |
36 | extern void warn_on_slowpath(const char *file, const int line); | |
a8f18b90 AV |
37 | extern void warn_slowpath(const char *file, const int line, |
38 | const char *fmt, ...) __attribute__((format(printf, 3, 4))); | |
79b4cc5e AV |
39 | #define WANT_WARN_ON_SLOWPATH |
40 | #endif | |
41 | #define __WARN() warn_on_slowpath(__FILE__, __LINE__) | |
a8f18b90 AV |
42 | #define __WARN_printf(arg...) warn_slowpath(__FILE__, __LINE__, arg) |
43 | #else | |
44 | #define __WARN_printf(arg...) __WARN() | |
3a6a62f9 OJ |
45 | #endif |
46 | ||
47 | #ifndef WARN_ON | |
684f9783 | 48 | #define WARN_ON(condition) ({ \ |
8d4fbcfb | 49 | int __ret_warn_on = !!(condition); \ |
3a6a62f9 OJ |
50 | if (unlikely(__ret_warn_on)) \ |
51 | __WARN(); \ | |
684f9783 HX |
52 | unlikely(__ret_warn_on); \ |
53 | }) | |
1da177e4 LT |
54 | #endif |
55 | ||
a8f18b90 AV |
56 | #ifndef WARN |
57 | #define WARN(condition, format...) ({ \ | |
58 | int __ret_warn_on = !!(condition); \ | |
59 | if (unlikely(__ret_warn_on)) \ | |
60 | __WARN_printf(format); \ | |
61 | unlikely(__ret_warn_on); \ | |
62 | }) | |
63 | #endif | |
64 | ||
c8538a7a MM |
65 | #else /* !CONFIG_BUG */ |
66 | #ifndef HAVE_ARCH_BUG | |
67 | #define BUG() | |
68 | #endif | |
69 | ||
c8538a7a MM |
70 | #ifndef HAVE_ARCH_BUG_ON |
71 | #define BUG_ON(condition) do { if (condition) ; } while(0) | |
72 | #endif | |
73 | ||
74 | #ifndef HAVE_ARCH_WARN_ON | |
8c7c7c9b | 75 | #define WARN_ON(condition) ({ \ |
8d4fbcfb | 76 | int __ret_warn_on = !!(condition); \ |
8c7c7c9b RB |
77 | unlikely(__ret_warn_on); \ |
78 | }) | |
c8538a7a | 79 | #endif |
a8f18b90 AV |
80 | |
81 | #ifndef WARN | |
82 | #define WARN(condition, format...) ({ \ | |
83 | int __ret_warn_on = !!(condition); \ | |
84 | unlikely(__ret_warn_on); \ | |
85 | }) | |
86 | #endif | |
87 | ||
c8538a7a MM |
88 | #endif |
89 | ||
d69a8922 AM |
90 | #define WARN_ON_ONCE(condition) ({ \ |
91 | static int __warned; \ | |
8d4fbcfb | 92 | int __ret_warn_once = !!(condition); \ |
d69a8922 AM |
93 | \ |
94 | if (unlikely(__ret_warn_once)) \ | |
95 | if (WARN_ON(!__warned)) \ | |
96 | __warned = 1; \ | |
97 | unlikely(__ret_warn_once); \ | |
74bb6a09 IM |
98 | }) |
99 | ||
45e9c0de AV |
100 | #define WARN_ONCE(condition, format...) ({ \ |
101 | static int __warned; \ | |
102 | int __ret_warn_once = !!(condition); \ | |
103 | \ | |
104 | if (unlikely(__ret_warn_once)) \ | |
105 | if (WARN(!__warned, format)) \ | |
106 | __warned = 1; \ | |
107 | unlikely(__ret_warn_once); \ | |
108 | }) | |
109 | ||
717115e1 DY |
110 | #define WARN_ON_RATELIMIT(condition, state) \ |
111 | WARN_ON((condition) && __ratelimit(state)) | |
112 | ||
8eb94f80 IM |
113 | #ifdef CONFIG_SMP |
114 | # define WARN_ON_SMP(x) WARN_ON(x) | |
115 | #else | |
116 | # define WARN_ON_SMP(x) do { } while (0) | |
117 | #endif | |
118 | ||
1da177e4 | 119 | #endif |