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 <y...@fb.com>
---
tools/lib/bpf/btf.c | 4 ++--
1 file 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;
}
--
2.17.1
