diff options
Diffstat (limited to 'include/linux/compiler.h')
| -rw-r--r-- | include/linux/compiler.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 4d4e23b6e3e7..469a64dd6495 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -239,11 +239,18 @@ static inline void *offset_to_ptr(const int *off) #endif /* __ASSEMBLY__ */ +#ifdef __CHECKER__ +#define __BUILD_BUG_ON_ZERO_MSG(e, msg) (0) +#else /* __CHECKER__ */ +#define __BUILD_BUG_ON_ZERO_MSG(e, msg) ((int)sizeof(struct {_Static_assert(!(e), msg);})) +#endif /* __CHECKER__ */ + /* &a[0] degrades to a pointer: a different type from an array */ -#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0])) +#define __must_be_array(a) __BUILD_BUG_ON_ZERO_MSG(__same_type((a), &(a)[0]), "must be array") /* Require C Strings (i.e. NUL-terminated) lack the "nonstring" attribute. */ -#define __must_be_cstr(p) BUILD_BUG_ON_ZERO(__annotated(p, nonstring)) +#define __must_be_cstr(p) \ + __BUILD_BUG_ON_ZERO_MSG(__annotated(p, nonstring), "must be cstr (NUL-terminated)") /* * This returns a constant expression while determining if an argument is |