2084c24a81
GCC's NULL is actually __null, which allows detecting some questionable NULL usage and warn about it. Moreover each platform/compiler should have its own stddef.h anyway (which is different from linux/stddef.h). So there's no good reason to leak kernel's NULL to userspace and override what the compiler provides. Signed-off-by: Luboš Luňák <l.lunak@suse.cz> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
24 lines
382 B
C
24 lines
382 B
C
#ifndef _LINUX_STDDEF_H
|
|
#define _LINUX_STDDEF_H
|
|
|
|
#include <linux/compiler.h>
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#undef NULL
|
|
#define NULL ((void *)0)
|
|
|
|
enum {
|
|
false = 0,
|
|
true = 1
|
|
};
|
|
|
|
#undef offsetof
|
|
#ifdef __compiler_offsetof
|
|
#define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
|
|
#else
|
|
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
|
|
#endif
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif
|