-@@ -131,7 +130,9 @@ static inline void rb_set_color(struct r
-
- #define RB_ROOT (struct rb_root) { NULL, }
-
-+#ifndef offsetof
- #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
-+#endif
-
- #define container_of(ptr, type, member) ({ \
- const typeof( ((type *)0)->member ) *__mptr = (ptr); \