u-boot/include/linux/bug.h
Masahiro Yamada 0a70fb4c1c bug.h: move runtime BUG/WARN macros into <linux/bug.h>
Collect runtime BUG/WARN into a self-contained header <linux/bug.h>
to make these macros easier to use.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-10-04 12:00:20 -04:00

34 lines
869 B
C

#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()!\n", __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()!\n", __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 */