328bafc9a3
Moving error macros from profiler.inc.h to new err.h header. It will be used in following changes. Also adding PTR_ERR macro that will be used in following changes. Acked-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Link: https://lore.kernel.org/r/20230331093157.1749137-2-jolsa@kernel.org Signed-off-by: Alexei Starovoitov <ast@kernel.org>
18 lines
377 B
C
18 lines
377 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __ERR_H__
|
|
#define __ERR_H__
|
|
|
|
#define MAX_ERRNO 4095
|
|
#define IS_ERR_VALUE(x) (unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO
|
|
|
|
static inline int IS_ERR_OR_NULL(const void *ptr)
|
|
{
|
|
return !ptr || IS_ERR_VALUE((unsigned long)ptr);
|
|
}
|
|
|
|
static inline long PTR_ERR(const void *ptr)
|
|
{
|
|
return (long) ptr;
|
|
}
|
|
|
|
#endif /* __ERR_H__ */
|