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path: root/tools/bpf/bpftool/btf.c
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Diffstat (limited to 'tools/bpf/bpftool/btf.c')
-rw-r--r--tools/bpf/bpftool/btf.c16
1 files changed, 5 insertions, 11 deletions
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index 0744bd1150be..68a70ac03c80 100644
--- a/tools/bpf/bpftool/btf.c
+++ b/tools/bpf/bpftool/btf.c
@@ -43,11 +43,6 @@ static const char * const btf_kind_str[NR_BTF_KINDS] = {
[BTF_KIND_ENUM64] = "ENUM64",
};
-struct btf_attach_point {
- __u32 obj_id;
- __u32 btf_id;
-};
-
static const char *btf_int_enc_str(__u8 encoding)
{
switch (encoding) {
@@ -640,10 +635,9 @@ static int do_dump(int argc, char **argv)
btf = btf__parse_split(*argv, base ?: base_btf);
err = libbpf_get_error(btf);
- if (err) {
- btf = NULL;
+ if (!btf) {
p_err("failed to load BTF from %s: %s",
- *argv, strerror(err));
+ *argv, strerror(errno));
goto done;
}
NEXT_ARG();
@@ -688,8 +682,8 @@ static int do_dump(int argc, char **argv)
btf = btf__load_from_kernel_by_id_split(btf_id, base_btf);
err = libbpf_get_error(btf);
- if (err) {
- p_err("get btf by id (%u): %s", btf_id, strerror(err));
+ if (!btf) {
+ p_err("get btf by id (%u): %s", btf_id, strerror(errno));
goto done;
}
}
@@ -825,7 +819,7 @@ build_btf_type_table(struct hashmap *tab, enum bpf_obj_type type,
u32_as_hash_field(id));
if (err) {
p_err("failed to append entry to hashmap for BTF ID %u, object ID %u: %s",
- btf_id, id, strerror(errno));
+ btf_id, id, strerror(-err));
goto err_free;
}
}