/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_CONTAINER_OF_H #define _LINUX_CONTAINER_OF_H #include <linux/build_bug.h> #include <linux/stddef.h> #define typeof_member(T, m) … /** * container_of - 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. * * WARNING: any const qualifier of @ptr is lost. */ #define container_of(ptr, type, member) … /** * container_of_const - cast a member of a structure out to the containing * structure and preserve the const-ness of the pointer * @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. */ #define container_of_const(ptr, type, member) … #endif /* _LINUX_CONTAINER_OF_H */