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| author |   Yonghong Song <yhs@fb.com> | 2019-02-05 21:38:30 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2019-02-05 22:07:03 -0800 |
| commit | f7748e2952387f1a67db3bc618050149427420c9 (patch) | |
| tree | 47c27ec3ea03b2d914e6e813e19c3a67757e9003 /tools/lib | |
| parent | tools/bpf: add const qualifier to btf__get_map_kv_tids() map_name parameter (diff) | |
| download | wireguard-linux-f7748e2952387f1a67db3bc618050149427420c9.tar.xz wireguard-linux-f7748e2952387f1a67db3bc618050149427420c9.zip | |
tools/bpf: silence a libbpf unnecessary warning
Commit 96408c43447a ("tools/bpf: implement libbpf
btf__get_map_kv_tids() API function") refactored
function bpf_map_find_btf_info() and moved bulk of
implementation into btf.c as btf__get_map_kv_tids().
This change introduced a bug such that test_btf will
print out the following warning although the test passed:
BTF libbpf test[2] (test_btf_nokv.o): libbpf: map:btf_map
container_name:____btf_map_btf_map cannot be found
in BTF. Missing BPF_ANNOTATE_KV_PAIR?
Previously, the error message is guarded with pr_debug().
Commit 96408c43447a changed it to pr_warning() and
hence caused the warning.
Restoring to pr_debug() for the message fixed the issue.
Fixes: 96408c43447a ("tools/bpf: implement libbpf btf__get_map_kv_tids() API function")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools/lib')
| -rw-r--r-- | tools/lib/bpf/btf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/lib/bpf/btf.c b/tools/lib/bpf/btf.c index 3b3a2959d03a..ab6528c935a1 100644 --- a/tools/lib/bpf/btf.c +++ b/tools/lib/bpf/btf.c @@ -531,8 +531,8 @@ int btf__get_map_kv_tids(const struct btf *btf, const char *map_name, container_id = btf__find_by_name(btf, container_name); if (container_id < 0) { - pr_warning("map:%s container_name:%s cannot be found in BTF. Missing BPF_ANNOTATE_KV_PAIR?\n", - map_name, container_name); + pr_debug("map:%s container_name:%s cannot be found in BTF. Missing BPF_ANNOTATE_KV_PAIR?\n", + map_name, container_name); return container_id; } |