nagai/kernel
3
0
Fork 0
forked from mirrors/linux
Code Pull requests Activity

container_of: remove container_of_safe()

Browse source 
It came in from a staging driver that has been long removed from the
tree, and there are no in-kernel users of the macro, and it's very
dubious if anyone should ever use this thing, so just remove it
entirely.

Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221024123933.3331116-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2022-10-24 14:39:33 +02:00
parent 59789f3418
commit 848dba781f
1 changed files with 0 additions and 16 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

16
include/linux/container_of.h
View file

@ -21,20 +21,4 @@
"pointer type mismatch in container_of()"); \ "pointer type mismatch in container_of()"); \
((type *)(__mptr - offsetof(type, member))); }) ((type *)(__mptr - offsetof(type, member))); })
/**
* container_of_safe - cast a member of a structure out to the containing structure
* @ptr: the pointer to the member.
* @type: the type of the container struct this is embedded in.
* @member: the name of the member within the struct.
*
* If IS_ERR_OR_NULL(ptr), ptr is returned unchanged.
*/
#define container_of_safe(ptr, type, member) ({ \
void *__mptr = (void *)(ptr); \
static_assert(__same_type(*(ptr), ((type *)0)->member) || \
__same_type(*(ptr), void), \
"pointer type mismatch in container_of_safe()"); \
IS_ERR_OR_NULL(__mptr) ? ERR_CAST(__mptr) : \
((type *)(__mptr - offsetof(type, member))); })
#endif /* _LINUX_CONTAINER_OF_H */ #endif /* _LINUX_CONTAINER_OF_H */