3373 gcc >= 4.5 concerns about offsetof()
@@ -368,11 +368,15 @@ /* avoid any possibility of clashing with <stddef.h> version */ #if defined(_KERNEL) && !defined(_KMEMUSER) #if !defined(offsetof) +#if defined(__GNUC__) +#define offsetof(s, m) __builtin_offsetof(s, m) +#else #define offsetof(s, m) ((size_t)(&(((s *)0)->m))) +#endif #endif /* !offsetof */ #define container_of(m, s, name) \ (void *)((uintptr_t)(m) - (uintptr_t)offsetof(s, name))