1 #ifndef _LINUX_STDDEF_H
2 #define _LINUX_STDDEF_H
3 
4 #include <uapi/linux/stddef.h>
5 
6 
7 #undef NULL
8 #define NULL ((void *)0)
9 
10 enum {
11 	false	= 0,
12 	true	= 1
13 };
14 
15 #undef offsetof
16 #ifdef __compiler_offsetof
17 #define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
18 #else
19 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
20 #endif
21 #endif
22 
23 /**
24  * offsetofend(TYPE, MEMBER)
25  *
26  * @TYPE: The type of the structure
27  * @MEMBER: The member within the structure to get the end offset of
28  */
29 #define offsetofend(TYPE, MEMBER) \
30 	(offsetof(TYPE, MEMBER)	+ sizeof(((TYPE *)0)->MEMBER))
31