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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:24:08 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:24:08 +0000 |
commit | f449f278dd3c70e479a035f50a9bb817a9b433ba (patch) | |
tree | 8ca2bfb785dda9bb4d573acdf9b42aea9cd51383 /src/contrib/libbpf/include/linux/err.h | |
parent | Initial commit. (diff) | |
download | knot-f449f278dd3c70e479a035f50a9bb817a9b433ba.tar.xz knot-f449f278dd3c70e479a035f50a9bb817a9b433ba.zip |
Adding upstream version 3.2.6.upstream/3.2.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/contrib/libbpf/include/linux/err.h')
-rw-r--r-- | src/contrib/libbpf/include/linux/err.h | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/contrib/libbpf/include/linux/err.h b/src/contrib/libbpf/include/linux/err.h new file mode 100644 index 0000000..1b1dafb --- /dev/null +++ b/src/contrib/libbpf/include/linux/err.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ + +#ifndef __LINUX_ERR_H +#define __LINUX_ERR_H + +#include <linux/types.h> +#include <asm/errno.h> + +#define MAX_ERRNO 4095 + +#define IS_ERR_VALUE(x) ((x) >= (unsigned long)-MAX_ERRNO) + +static inline void * ERR_PTR(long error_) +{ + return (void *) error_; +} + +static inline long PTR_ERR(const void *ptr) +{ + return (long) ptr; +} + +static inline bool IS_ERR(const void *ptr) +{ + return IS_ERR_VALUE((unsigned long)ptr); +} + +static inline bool IS_ERR_OR_NULL(const void *ptr) +{ + return (!ptr) || IS_ERR_VALUE((unsigned long)ptr); +} + +static inline long PTR_ERR_OR_ZERO(const void *ptr) +{ + return IS_ERR(ptr) ? PTR_ERR(ptr) : 0; +} + +#endif |