Messages in this thread Patch in this message | | | From | Milan Landaverde <> | Subject | [PATCH bpf-next 3/3] bpf/bpftool: handle libbpf_probe_prog_type errors | Date | Thu, 31 Mar 2022 11:45:55 -0400 |
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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> --- tools/bpf/bpftool/feature.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c index c2f43a5d38e0..b2fbaa7a6b15 100644 --- a/tools/bpf/bpftool/feature.c +++ b/tools/bpf/bpftool/feature.c @@ -564,7 +564,7 @@ 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 -- 2.32.0
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