| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _TOOLS_LINUX_CONTAINER_OF_H |
| #define _TOOLS_LINUX_CONTAINER_OF_H |
| |
| #ifndef container_of |
| /** |
| * 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. |
| * |
| */ |
| #define container_of(ptr, type, member) ({ \ |
| const typeof(((type *)0)->member) * __mptr = (ptr); \ |
| (type *)((char *)__mptr - offsetof(type, member)); }) |
| #endif |
| |
| #endif /* _TOOLS_LINUX_CONTAINER_OF_H */ |
