b246a9d267
The definition of WARN_ON being used by the radix tree test suite was deficient in two ways: it did not provide a return value, and it stopped execution instead of continuing. This version of WARN_ON tells you which file & line the assertion was triggered in. Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
45 lines
1 KiB
C
45 lines
1 KiB
C
#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_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 */
|