| From | Ben Hutchings <> | Date | Wed, 28 Feb 2018 15:20:22 +0000 | Subject | [PATCH 3.2 069/140] include/stddef.h: Move offsetofend() from vfio.h to a generic kernel header |
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3.2.100-rc1 review patch. If anyone has any objections, please let me know.
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From: Denys Vlasenko <dvlasenk@redhat.com>
commit 3876488444e71238e287459c39d7692b6f718c3e upstream.
Suggested by Andy.
Suggested-by: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com> Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Kees Cook <keescook@chromium.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Will Drewry <wad@chromium.org> Link: http://lkml.kernel.org/r/1425912738-559-1-git-send-email-dvlasenk@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> [bwh: Backported to 3.2: - There is no definition in vfio.h to move - Put the definition inside the #ifdef __KERNEL__ section] Signed-off-by: Ben Hutchings <ben@decadent.org.uk> --- --- a/include/linux/stddef.h +++ b/include/linux/stddef.h @@ -23,6 +23,16 @@ enum { #else #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) #endif + +/** + * offsetofend(TYPE, MEMBER) + * + * @TYPE: The type of the structure + * @MEMBER: The member within the structure to get the end offset of + */ +#define offsetofend(TYPE, MEMBER) \ + (offsetof(TYPE, MEMBER) + sizeof(((TYPE *)0)->MEMBER)) + #endif /* __KERNEL__ */ #endif
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