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| author |   Milan Landaverde <milan@mdaverde.com> | 2022-03-31 11:45:55 -0400 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2022-04-04 14:54:44 -0700 |
| commit | 7b53eaa656c34d5b521e245cbfc3aee2d7b89eac (patch) | |
| tree | f5030cb3f1d70742988ea80625f702f1aead24cd /tools/bpf/bpftool/feature.c | |
| parent | bpftool: Add missing link types (diff) | |
| download | linux-dev-7b53eaa656c34d5b521e245cbfc3aee2d7b89eac.tar.xz linux-dev-7b53eaa656c34d5b521e245cbfc3aee2d7b89eac.zip | |
bpftool: Handle libbpf_probe_prog_type errors
Previously [1], we were using bpf_probe_prog_type which returned a
bool, but the new libbpf_probe_bpf_prog_type can return a negative
error code on failure. This change decides for bpftool to declare
a program type is not available on probe failure.
[1] https://lore.kernel.org/bpf/20220202225916.3313522-3-andrii@kernel.org/
Signed-off-by: Milan Landaverde <milan@mdaverde.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20220331154555.422506-4-milan@mdaverde.com
Diffstat (limited to 'tools/bpf/bpftool/feature.c')
| -rw-r--r-- | tools/bpf/bpftool/feature.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c index 290998c82de1..f041c4a6a1f2 100644 --- a/tools/bpf/bpftool/feature.c +++ b/tools/bpf/bpftool/feature.c @@ -567,7 +567,7 @@ probe_prog_type(enum bpf_prog_type prog_type, bool *supported_types, res = probe_prog_type_ifindex(prog_type, ifindex); } else { - res = libbpf_probe_bpf_prog_type(prog_type, NULL); + res = libbpf_probe_bpf_prog_type(prog_type, NULL) > 0; } #ifdef USE_LIBCAP |