blob: 29f84168a38d597534793d7651b677c32f4461c1 [file] [log] [blame]
Masahiro Yamada84b8bf62016-01-24 23:27:48 +09001#ifndef _LINUX_BUG_H
2#define _LINUX_BUG_H
3
Masahiro Yamada0a70fb42017-09-16 14:10:45 +09004#include <vsprintf.h> /* for panic() */
Masahiro Yamada059a4802017-09-16 14:10:44 +09005#include <linux/build_bug.h>
Masahiro Yamada0a70fb42017-09-16 14:10:45 +09006#include <linux/compiler.h>
7#include <linux/printk.h>
8
9#define BUG() do { \
10 printk("BUG at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
11 panic("BUG!"); \
12} while (0)
13
14#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
15
16#define WARN_ON(condition) ({ \
17 int __ret_warn_on = !!(condition); \
18 if (unlikely(__ret_warn_on)) \
19 printk("WARNING at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \
20 unlikely(__ret_warn_on); \
21})
22
Ramon Fried948f32c2018-06-06 00:38:59 +030023#define WARN(condition, format...) ({ \
24 int __ret_warn_on = !!(condition); \
25 if (unlikely(__ret_warn_on)) \
26 printf(format); \
27 unlikely(__ret_warn_on); \
28})
29
Masahiro Yamada0a70fb42017-09-16 14:10:45 +090030#define WARN_ON_ONCE(condition) ({ \
31 static bool __warned; \
32 int __ret_warn_once = !!(condition); \
33 \
34 if (unlikely(__ret_warn_once && !__warned)) { \
35 __warned = true; \
36 WARN_ON(1); \
37 } \
38 unlikely(__ret_warn_once); \
39})
Masahiro Yamada84b8bf62016-01-24 23:27:48 +090040
Ramon Fried948f32c2018-06-06 00:38:59 +030041#define WARN_ONCE(condition, format...) ({ \
42 static bool __warned; \
43 int __ret_warn_once = !!(condition); \
44 \
45 if (unlikely(__ret_warn_once && !__warned)) { \
46 __warned = true; \
47 WARN(1, format); \
48 } \
49 unlikely(__ret_warn_once); \
50})
51
Masahiro Yamada84b8bf62016-01-24 23:27:48 +090052#endif /* _LINUX_BUG_H */