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linux
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asm-generic
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bug.h
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bug.h
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#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
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