| /* SPDX-License-Identifier: GPL-2.0+ */ | |
| /* | |
| * erofs_error.h | |
| * | |
| * Copyright (C) 2018 HUAWEI, Inc. | |
| * http://www.huawei.com/ | |
| * Created by Li Guifu <bluce.liguifu@huawei.com> | |
| */ | |
| #ifndef __EROFS_ERROR_H | |
| #define __EROFS_ERROR_H | |
| #define MAX_ERRNO (4095) | |
| #define IS_ERR_VALUE(x) \ | |
| ((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) | |
| static inline void *ERR_PTR(long error) | |
| { | |
| return (void *)error; | |
| } | |
| static inline int IS_ERR(const void *ptr) | |
| { | |
| return IS_ERR_VALUE((unsigned long)ptr); | |
| } | |
| #endif |