For map-in-map types, the first time the map is loaded, we get a scary
error looking like this:
libbpf: bpf_create_map_xattr(map_name):ERROR: strerror_r(-524)=22(-524). Retrying without BTF.
On the second try without BTF, everything works fine. However, as this
is logged at error level, it looks needlessly scary to users. Soften
this to be at debug level; if the second attempt still fails, we'll
still get an error as expected.
Signed-off-by: Martin Kelly <martin.kelly@xxxxxxxxxxxxxxx>
---
tools/lib/bpf/libbpf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index b14a4376a86e..0ca0c8d01707 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -5123,7 +5123,7 @@ static int bpf_object__create_map(struct bpf_object *obj, struct bpf_map *map, b
err = -errno;
cp = libbpf_strerror_r(err, errmsg, sizeof(errmsg));
- pr_warn("Error in bpf_create_map_xattr(%s):%s(%d). Retrying without BTF.\n",
+ pr_debug("bpf_create_map_xattr(%s):%s(%d). Retrying without BTF.\n",
map->name, cp, err);
create_attr.btf_fd = 0;
create_attr.btf_key_type_id = 0;
--
2.34.1
