diff options
| author | Joe Stringer | 2017-01-22 17:11:25 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2017-01-26 11:42:58 -0300 |
| commit | e28ff1a8382ee02b10cf11cf3b48541dc3d14a58 (patch) | |
| tree | 7b2e4fbf719f7c62f506e2d19f5aca86597d0337 /tools/lib/bpf/libbpf.h | |
| parent | 7803ba73099867d1f6ca866857277d92e0da4080 (diff) | |
tools lib bpf: Add libbpf_get_error()
This function will turn a libbpf pointer into a standard error code (or
0 if the pointer is valid).
This also allows removal of the dependency on linux/err.h in the public
header file, which causes problems in userspace programs built against
libbpf.
Signed-off-by: Joe Stringer <joe@ovn.org>
Acked-by: Wang Nan <wangnan0@huawei.com>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/20170123011128.26534-5-joe@ovn.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/lib/bpf/libbpf.h')
| -rw-r--r-- | tools/lib/bpf/libbpf.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/lib/bpf/libbpf.h b/tools/lib/bpf/libbpf.h index 2188ccdc0e2d..4014d1ba5e3d 100644 --- a/tools/lib/bpf/libbpf.h +++ b/tools/lib/bpf/libbpf.h @@ -22,8 +22,8 @@ #define __BPF_LIBBPF_H #include <stdio.h> +#include <stdint.h> #include <stdbool.h> -#include <linux/err.h> #include <sys/types.h> // for size_t enum libbpf_errno { @@ -234,4 +234,6 @@ int bpf_map__set_priv(struct bpf_map *map, void *priv, bpf_map_clear_priv_t clear_priv); void *bpf_map__priv(struct bpf_map *map); +long libbpf_get_error(const void *ptr); + #endif |