tools/perf/util/include/asm/bug.h

   1 #ifndef _PERF_ASM_GENERIC_BUG_H
   2 #define _PERF_ASM_GENERIC_BUG_H
   3
   4 #define __WARN_printf(arg...)   do { fprintf(stderr, arg); } while (0)
   5
   6 #define WARN(condition, format...) ({           \
   7         int __ret_warn_on = !!(condition);      \
   8         if (unlikely(__ret_warn_on))            \
   9                 __WARN_printf(format);          \
  10         unlikely(__ret_warn_on);                \
  11 })
  12
  13 #define WARN_ONCE(condition, format...) ({      \
  14         static int __warned;                    \
  15         int __ret_warn_once = !!(condition);    \
  16                                                 \
  17         if (unlikely(__ret_warn_once))          \
  18                 if (WARN(!__warned, format))    \
  19                         __warned = 1;           \
  20         unlikely(__ret_warn_once);              \
  21 })
  22 #endif