| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | #ifndef _LINUX_STDDEF_H |
| 3 | #define _LINUX_STDDEF_H |
| 4 | |
| 5 | #include <uapi/linux/stddef.h> |
| 6 | |
| 7 | #undef NULL |
| 8 | #define NULL ((void *)0) |
| 9 | |
| 10 | enum { |
| 11 | false = 0, |
| 12 | true = 1 |
| 13 | }; |
| 14 | |
| 15 | #undef offsetof |
| 16 | #ifdef __compiler_offsetof |
| 17 | #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER) |
| 18 | #else |
| 19 | #define offsetof(TYPE, MEMBER) ((size_t)&((TYPE *)0)->MEMBER) |
| 20 | #endif |
| 21 | |
| 22 | /** |
| 23 | * offsetofend(TYPE, MEMBER) |
| 24 | * |
| 25 | * @TYPE: The type of the structure |
| 26 | * @MEMBER: The member within the structure to get the end offset of |
| 27 | */ |
| 28 | #define offsetofend(TYPE, MEMBER) \ |
| 29 | (offsetof(TYPE, MEMBER) + sizeof(((TYPE *)0)->MEMBER)) |
| 30 | |
| 31 | #endif |