linux/tools/include/asm/bug.h
Jiri Olsa 058bd85784 tools: Add missing stdio.h include to asm/bug.h header
We have a direct fprintf() call in the header, so we need stdio.h
include, otherwise it could fail compilation if there's no prior stdio.h
include directive.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Link: http://lkml.kernel.org/n/tip-8hvjgh24olfsa4non0a3ohnq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-09-25 09:51:44 -03:00

47 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _TOOLS_ASM_BUG_H
#define _TOOLS_ASM_BUG_H
#include <linux/compiler.h>
#include <stdio.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_ON(condition) ({ \
int __ret_warn_on = !!(condition); \
if (unlikely(__ret_warn_on)) \
__WARN_printf("assertion failed at %s:%d\n", \
__FILE__, __LINE__); \
unlikely(__ret_warn_on); \
})
#define WARN_ON_ONCE(condition) ({ \
static int __warned; \
int __ret_warn_once = !!(condition); \
\
if (unlikely(__ret_warn_once && !__warned)) { \
__warned = true; \
WARN_ON(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); \
})
#endif /* _TOOLS_ASM_BUG_H */