1#ifndef _ASM_GENERIC_BUG_H
2#define _ASM_GENERIC_BUG_H
3
4#include <linux/compiler.h>
5
6#ifdef CONFIG_BUG
7#ifndef HAVE_ARCH_BUG
8#define BUG() do { \
9	printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
10	panic("BUG!"); \
11} while (0)
12#endif
13
14#ifndef HAVE_ARCH_BUG_ON
15#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
16#endif
17
18#ifndef HAVE_ARCH_WARN_ON
19#define WARN_ON(condition) do { \
20	if (unlikely((condition)!=0)) { \
21		printk("BUG: warning at %s:%d/%s()\n", __FILE__, __LINE__, __FUNCTION__); \
22		dump_stack(); \
23	} \
24} while (0)
25#endif
26
27#else /* !CONFIG_BUG */
28#ifndef HAVE_ARCH_BUG
29#define BUG()
30#endif
31
32#ifndef HAVE_ARCH_BUG_ON
33#define BUG_ON(condition) do { if (condition) ; } while(0)
34#endif
35
36#ifndef HAVE_ARCH_WARN_ON
37#define WARN_ON(condition) do { if (condition) ; } while(0)
38#endif
39#endif
40
41#define WARN_ON_ONCE(condition)				\
42({							\
43	static int __warn_once = 1;			\
44	int __ret = 0;					\
45							\
46	if (unlikely((condition) && __warn_once)) {	\
47		__warn_once = 0;			\
48		WARN_ON(1);				\
49		__ret = 1;				\
50	}						\
51	__ret;						\
52})
53
54#ifdef CONFIG_SMP
55# define WARN_ON_SMP(x)			WARN_ON(x)
56#else
57# define WARN_ON_SMP(x)			do { } while (0)
58#endif
59
60#endif
61