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Diffstat (limited to 'include/linux/bug.h')
| -rw-r--r-- | include/linux/bug.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/bug.h b/include/linux/bug.h new file mode 100644 index 0000000..29f8416 --- /dev/null +++ b/include/linux/bug.h @@ -0,0 +1,52 @@ +#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(condition, format...) ({ \ + int __ret_warn_on = !!(condition); \ + if (unlikely(__ret_warn_on)) \ + printf(format); \ + 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); \ +}) + +#define WARN_ONCE(condition, format...) ({ \ + static bool __warned; \ + int __ret_warn_once = !!(condition); \ + \ + if (unlikely(__ret_warn_once && !__warned)) { \ + __warned = true; \ + WARN(1, format); \ + } \ + unlikely(__ret_warn_once); \ +}) + +#endif /* _LINUX_BUG_H */ |