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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-09-16 14:10:45 +0900 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-10-04 12:00:20 -0400 |
| commit | 0a70fb4c1c180d6ad6cd4c1dcd3fae8c5d4dd62e (patch) | |
| tree | b6f0c93e64ad4534e982ad28eaa599fa92f38e33 /include/linux/bug.h | |
| parent | 059a48096c883e98bc1a4a561abc0069f44cbfea (diff) | |
| download | u-boot-0a70fb4c1c180d6ad6cd4c1dcd3fae8c5d4dd62e.tar.gz | |
bug.h: move runtime BUG/WARN macros into <linux/bug.h>
Collect runtime BUG/WARN into a self-contained header <linux/bug.h>
to make these macros easier to use.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'include/linux/bug.h')
| -rw-r--r-- | include/linux/bug.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/bug.h b/include/linux/bug.h index 133544ca46..f07bb716fc 100644 --- a/include/linux/bug.h +++ b/include/linux/bug.h @@ -1,6 +1,34 @@ #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_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); \ +}) #endif /* _LINUX_BUG_H */ |