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include/linux/bug.h
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Initial Release, ...
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#ifndef _LINUX_BUG_H
#define _LINUX_BUG_H
#include <vsprintf.h> /* for panic() */
#include <linux/build_bug.h>
#include <linux/compiler.h>
#include <linux/printk.h>
#define BUG() do { \
printk("BUG at %s:%d/%s()!
", __FILE__, __LINE__, __func__); \
panic("BUG!"); \
} while (0)
#define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0)
#define WARN_ON(condition) ({ \
int __ret_warn_on = !!(condition); \
if (unlikely(__ret_warn_on)) \
printk("WARNING at %s:%d/%s()!
", __FILE__, __LINE__, __func__); \
unlikely(__ret_warn_on); \
})
#define WARN_ON_ONCE(condition) ({ \
static bool __warned; \
int __ret_warn_once = !!(condition); \
\
if (unlikely(__ret_warn_once && !__warned)) { \
__warned = true; \
WARN_ON(1); \
} \
unlikely(__ret_warn_once); \
})
#endif /* _LINUX_BUG_H */
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