Contributors: 9
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Linus Torvalds (pre-git) |
16 |
32.00% |
2 |
16.67% |
| Andy Shevchenko |
9 |
18.00% |
2 |
16.67% |
| Alexey Dobriyan |
9 |
18.00% |
1 |
8.33% |
| Greg Kroah-Hartman |
7 |
14.00% |
2 |
16.67% |
| Neil Brown |
3 |
6.00% |
1 |
8.33% |
| Harald Welte |
2 |
4.00% |
1 |
8.33% |
| Peter Zijlstra |
2 |
4.00% |
1 |
8.33% |
| Rasmus Villemoes |
1 |
2.00% |
1 |
8.33% |
| Sakari Ailus |
1 |
2.00% |
1 |
8.33% |
| Total |
50 |
|
12 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_CONTAINER_OF_H
#define _LINUX_CONTAINER_OF_H
#include <linux/build_bug.h>
#include <linux/err.h>
#define typeof_member(T, m) typeof(((T*)0)->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) ({ \
void *__mptr = (void *)(ptr); \
static_assert(__same_type(*(ptr), ((type *)0)->member) || \
__same_type(*(ptr), void), \
"pointer type mismatch in container_of()"); \
((type *)(__mptr - offsetof(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) \
_Generic(ptr, \
const typeof(*(ptr)) *: ((const type *)container_of(ptr, type, member)),\
default: ((type *)container_of(ptr, type, member)) \
)
#endif /* _LINUX_CONTAINER_OF_H */