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bpftool: fix error message when function can't register struct_ops 

It is expected that errno be passed to strerror(). This also cleans
this part of code from using libbpf_get_error().

Signed-off-by: Sahid Orentino Ferdjaoui <sahid.ferdjaoui@industrialdiscipline.com>
Acked-by: Yonghong Song <yhs@fb.com>
Suggested-by: Quentin Monnet <quentin@isovalent.com>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/r/20221120112515.38165-4-sahid.ferdjaoui@industrialdiscipline.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Sahid Orentino Ferdjaoui 2022-11-20 11:26:18 +00:00 committed by Alexei Starovoitov
parent 989f285159
commit d2973ffd25
1 changed files with 2 additions and 3 deletions
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5
tools/bpf/bpftool/struct_ops.c
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@ -511,10 +511,9 @@ static int do_register(int argc, char **argv)
continue;
link = bpf_map__attach_struct_ops(map);
if (libbpf_get_error(link)) {
if (!link) {
p_err("can't register struct_ops %s: %s",
bpf_map__name(map),
strerror(-PTR_ERR(link)));
bpf_map__name(map), strerror(errno));
nr_errs++;
continue;
}