Commit 38764884 authored by Denys Vlasenko's avatar Denys Vlasenko Committed by Ingo Molnar

include/stddef.h: Move offsetofend() from vfio.h to a generic kernel header

Suggested by Andy.
Suggested-by: default avatarAndy Lutomirski <luto@amacapital.net>
Signed-off-by: default avatarDenys Vlasenko <dvlasenk@redhat.com>
Acked-by: default avatarLinus 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.comSigned-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 5c39403e
...@@ -19,3 +19,12 @@ enum { ...@@ -19,3 +19,12 @@ enum {
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER) #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#endif #endif
#endif #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))
...@@ -78,19 +78,6 @@ extern int vfio_register_iommu_driver(const struct vfio_iommu_driver_ops *ops); ...@@ -78,19 +78,6 @@ extern int vfio_register_iommu_driver(const struct vfio_iommu_driver_ops *ops);
extern void vfio_unregister_iommu_driver( extern void vfio_unregister_iommu_driver(
const struct vfio_iommu_driver_ops *ops); const struct vfio_iommu_driver_ops *ops);
/**
* offsetofend(TYPE, MEMBER)
*
* @TYPE: The type of the structure
* @MEMBER: The member within the structure to get the end offset of
*
* Simple helper macro for dealing with variable sized structures passed
* from user space. This allows us to easily determine if the provided
* structure is sized to include various fields.
*/
#define offsetofend(TYPE, MEMBER) \
(offsetof(TYPE, MEMBER) + sizeof(((TYPE *)0)->MEMBER))
/* /*
* External user API * External user API
*/ */
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment