diff options
Diffstat (limited to 'include/asm-generic/bug.h')
| -rw-r--r-- | include/asm-generic/bug.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index f20e1b4d65..5d0a458eae 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -50,4 +50,16 @@ } \ unlikely(__ret_warn_once); \ }) + +#define WARN_ON_ONCE(condition) ({ \ + static int __warned; \ + int __ret_warn_once = !!(condition); \ + \ + if (unlikely(__ret_warn_once && !__warned)) { \ + __warned = 1; \ + __WARN(); \ + } \ + unlikely(__ret_warn_once); \ +}) + #endif |