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v0.5.1
https://github.com/torvalds/linux
Raw File
Tip revision: 6a13feb9c82803e2b815eca72fa7a9f5561d7861 authored by Linus Torvalds on 02 November 2015, 00:05:25 UTC
Linux 4.3
Tip revision: 6a13feb
bug.h
#ifndef _TOOLS_ASM_BUG_H
#define _TOOLS_ASM_BUG_H

#include <linux/compiler.h>

#define __WARN_printf(arg...)	do { fprintf(stderr, arg); } while (0)

#define WARN(condition, format...) ({		\
	int __ret_warn_on = !!(condition);	\
	if (unlikely(__ret_warn_on))		\
		__WARN_printf(format);		\
	unlikely(__ret_warn_on);		\
})

#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);		\
})

#endif /* _TOOLS_ASM_BUG_H */
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