|  | #ifndef _ASM_GENERIC_BUG_H | 
|  | #define _ASM_GENERIC_BUG_H | 
|  |  | 
|  | #include <linux/compiler.h> | 
|  |  | 
|  | #ifdef CONFIG_BUG | 
|  |  | 
|  | #ifdef CONFIG_GENERIC_BUG | 
|  | #ifndef __ASSEMBLY__ | 
|  | struct bug_entry { | 
|  | unsigned long	bug_addr; | 
|  | #ifdef CONFIG_DEBUG_BUGVERBOSE | 
|  | const char	*file; | 
|  | unsigned short	line; | 
|  | #endif | 
|  | unsigned short	flags; | 
|  | }; | 
|  | #endif		/* __ASSEMBLY__ */ | 
|  |  | 
|  | #define BUGFLAG_WARNING	(1<<0) | 
|  | #endif	/* CONFIG_GENERIC_BUG */ | 
|  |  | 
|  | #ifndef HAVE_ARCH_BUG | 
|  | #define BUG() do { \ | 
|  | printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __func__); \ | 
|  | panic("BUG!"); \ | 
|  | } while (0) | 
|  | #endif | 
|  |  | 
|  | #ifndef HAVE_ARCH_BUG_ON | 
|  | #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while(0) | 
|  | #endif | 
|  |  | 
|  | #ifndef __WARN | 
|  | #ifndef __ASSEMBLY__ | 
|  | extern void warn_on_slowpath(const char *file, const int line); | 
|  | extern void warn_slowpath(const char *file, const int line, | 
|  | const char *fmt, ...) __attribute__((format(printf, 3, 4))); | 
|  | #define WANT_WARN_ON_SLOWPATH | 
|  | #endif | 
|  | #define __WARN() warn_on_slowpath(__FILE__, __LINE__) | 
|  | #define __WARN_printf(arg...) warn_slowpath(__FILE__, __LINE__, arg) | 
|  | #else | 
|  | #define __WARN_printf(arg...) do { printk(arg); __WARN(); } while (0) | 
|  | #endif | 
|  |  | 
|  | #ifndef WARN_ON | 
|  | #define WARN_ON(condition) ({						\ | 
|  | int __ret_warn_on = !!(condition);				\ | 
|  | if (unlikely(__ret_warn_on))					\ | 
|  | __WARN();						\ | 
|  | unlikely(__ret_warn_on);					\ | 
|  | }) | 
|  | #endif | 
|  |  | 
|  | #ifndef WARN | 
|  | #define WARN(condition, format...) ({						\ | 
|  | int __ret_warn_on = !!(condition);				\ | 
|  | if (unlikely(__ret_warn_on))					\ | 
|  | __WARN_printf(format);					\ | 
|  | unlikely(__ret_warn_on);					\ | 
|  | }) | 
|  | #endif | 
|  |  | 
|  | #else /* !CONFIG_BUG */ | 
|  | #ifndef HAVE_ARCH_BUG | 
|  | #define BUG() | 
|  | #endif | 
|  |  | 
|  | #ifndef HAVE_ARCH_BUG_ON | 
|  | #define BUG_ON(condition) do { if (condition) ; } while(0) | 
|  | #endif | 
|  |  | 
|  | #ifndef HAVE_ARCH_WARN_ON | 
|  | #define WARN_ON(condition) ({						\ | 
|  | int __ret_warn_on = !!(condition);				\ | 
|  | unlikely(__ret_warn_on);					\ | 
|  | }) | 
|  | #endif | 
|  |  | 
|  | #ifndef WARN | 
|  | #define WARN(condition, format...) ({					\ | 
|  | int __ret_warn_on = !!(condition);				\ | 
|  | unlikely(__ret_warn_on);					\ | 
|  | }) | 
|  | #endif | 
|  |  | 
|  | #endif | 
|  |  | 
|  | #define WARN_ON_ONCE(condition)	({				\ | 
|  | static int __warned;					\ | 
|  | int __ret_warn_once = !!(condition);			\ | 
|  | \ | 
|  | if (unlikely(__ret_warn_once))				\ | 
|  | if (WARN_ON(!__warned)) 			\ | 
|  | __warned = 1;				\ | 
|  | unlikely(__ret_warn_once);				\ | 
|  | }) | 
|  |  | 
|  | #define WARN_ONCE(condition, format...)	({			\ | 
|  | static int __warned;					\ | 
|  | int __ret_warn_once = !!(condition);			\ | 
|  | \ | 
|  | if (unlikely(__ret_warn_once))				\ | 
|  | if (WARN(!__warned, format)) 			\ | 
|  | __warned = 1;				\ | 
|  | unlikely(__ret_warn_once);				\ | 
|  | }) | 
|  |  | 
|  | #define WARN_ON_RATELIMIT(condition, state)			\ | 
|  | WARN_ON((condition) && __ratelimit(state)) | 
|  |  | 
|  | #ifdef CONFIG_SMP | 
|  | # define WARN_ON_SMP(x)			WARN_ON(x) | 
|  | #else | 
|  | # define WARN_ON_SMP(x)			do { } while (0) | 
|  | #endif | 
|  |  | 
|  | #endif |