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>
--- /dev/null
+/* 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__ */
#include <bpf/bpf_tracing.h>
#include "profiler.h"
+#include "err.h"
#ifndef NULL
#define NULL 0
#define O_DIRECTORY 00200000
#define __O_TMPFILE 020000000
#define O_TMPFILE (__O_TMPFILE | O_DIRECTORY)
-#define MAX_ERRNO 4095
#define S_IFMT 00170000
#define S_IFSOCK 0140000
#define S_IFLNK 0120000
#define S_ISBLK(m) (((m)&S_IFMT) == S_IFBLK)
#define S_ISFIFO(m) (((m)&S_IFMT) == S_IFIFO)
#define S_ISSOCK(m) (((m)&S_IFMT) == S_IFSOCK)
-#define IS_ERR_VALUE(x) (unsigned long)(void*)(x) >= (unsigned long)-MAX_ERRNO
#define KILL_DATA_ARRAY_SIZE 8