kernel-ark/include/asm-generic/bug.h
Ingo Molnar 8eb94f80dd [PATCH] pi-futex: introduce WARN_ON_SMP
Introduce a new WARN_ON variant: WARN_ON_SMP(cond).

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:46 -07:00

61 lines
1.2 KiB
C

#ifndef _ASM_GENERIC_BUG_H
#define _ASM_GENERIC_BUG_H
#include <linux/compiler.h>
#ifdef CONFIG_BUG
#ifndef HAVE_ARCH_BUG
#define BUG() do { \
printk("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
panic("BUG!"); \
} while (0)
#endif
#ifndef HAVE_ARCH_BUG_ON
#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)
#endif
#ifndef HAVE_ARCH_WARN_ON
#define WARN_ON(condition) do { \
if (unlikely((condition)!=0)) { \
printk("BUG: warning at %s:%d/%s()\n", __FILE__, __LINE__, __FUNCTION__); \
dump_stack(); \
} \
} while (0)
#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) do { if (condition) ; } while(0)
#endif
#endif
#define WARN_ON_ONCE(condition) \
({ \
static int __warn_once = 1; \
int __ret = 0; \
\
if (unlikely((condition) && __warn_once)) { \
__warn_once = 0; \
WARN_ON(1); \
__ret = 1; \
} \
__ret; \
})
#ifdef CONFIG_SMP
# define WARN_ON_SMP(x) WARN_ON(x)
#else
# define WARN_ON_SMP(x) do { } while (0)
#endif
#endif