diff options
Diffstat (limited to 'include/linux/build_bug.h')
| -rw-r--r-- | include/linux/build_bug.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/include/linux/build_bug.h b/include/linux/build_bug.h index 3aa3640f8c18..2cfbb4c65c78 100644 --- a/include/linux/build_bug.h +++ b/include/linux/build_bug.h @@ -4,17 +4,17 @@ #include <linux/compiler.h> -#ifdef __CHECKER__ -#define BUILD_BUG_ON_ZERO(e) (0) -#else /* __CHECKER__ */ /* * Force a compilation error if condition is true, but also produce a * result (of value 0 and type int), so the expression can be used * e.g. in a structure initializer (or where-ever else comma expressions * aren't permitted). + * + * Take an error message as an optional second argument. If omitted, + * default to the stringification of the tested expression. */ -#define BUILD_BUG_ON_ZERO(e) ((int)(sizeof(struct { int:(-!!(e)); }))) -#endif /* __CHECKER__ */ +#define BUILD_BUG_ON_ZERO(e, ...) \ + __BUILD_BUG_ON_ZERO_MSG(e, ##__VA_ARGS__, #e " is true") /* Force a compilation error if a constant expression is not a power of 2 */ #define __BUILD_BUG_ON_NOT_POWER_OF_2(n) \ |