1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef __ERR_H__
 3#define __ERR_H__
 4
 5#define MAX_ERRNO 4095
 6#define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO
 7
 8static inline int IS_ERR_OR_NULL(const void *ptr)
 9{
10	return !ptr || IS_ERR_VALUE((unsigned long)ptr);
11}
12
13static inline long PTR_ERR(const void *ptr)
14{
15	return (long) ptr;
16}
17
18#endif /* __ERR_H__ */