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>
25 lines
382 B
C
25 lines
382 B
C
#ifndef _LINUX_STDDEF_H
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#define _LINUX_STDDEF_H
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#include <linux/compiler.h>
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#ifdef __KERNEL__
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#undef NULL
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#define NULL ((void *)0)
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enum {
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false = 0,
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true = 1
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};
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#undef offsetof
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#ifdef __compiler_offsetof
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#define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
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#else
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#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
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#endif
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#endif /* __KERNEL__ */
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#endif
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