Commit 848dba78 authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

container_of: remove container_of_safe() 



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: default avatarSakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: default avatarRafael J. Wysocki <rafael@kernel.org>
Acked-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20221024123933.3331116-1-gregkh@linuxfoundation.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 59789f34

include/linux/container_of.h

+0 −16
Original line number Diff line number Diff line
@@ -21,20 +21,4 @@ 
		      "pointer type mismatch in container_of()");	\

	((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 */