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| author | Simon Glass <sjg@chromium.org> | 2019-12-28 10:45:08 -0700 |
|---|---|---|
| committer | Jagan Teki <jagan@amarulasolutions.com> | 2020-01-24 23:06:49 +0530 |
| commit | 28de7505a73fcbf5561a3f39686f5f54d969fdfe (patch) | |
| tree | aefce3ac8a71b15c38f64815ab1792fd811051c0 /include/linux/kernel.h | |
| parent | 29a4a9f1056fd4cc319c248c2e062cd91f6fa9f2 (diff) | |
common: Move check_member() to kernel.h
The kernel.h file has a number of useful macros including a few related
to structures. Move check_member() there too.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/linux/kernel.h')
| -rw-r--r-- | include/linux/kernel.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 564819a1c0a..fefbc07375e 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -268,4 +268,15 @@ const typeof( ((type *)0)->member ) *__mptr = (ptr); \ (type *)( (char *)__mptr - offsetof(type,member) );}) +/* + * check_member() - Check the offset of a structure member + * + * @structure: Name of structure (e.g. global_data) + * @member: Name of member (e.g. baudrate) + * @offset: Expected offset in bytes + */ +#define check_member(structure, member, offset) _Static_assert( \ + offsetof(struct structure, member) == (offset), \ + "`struct " #structure "` offset for `" #member "` is not " #offset) + #endif |