resolve_btfids prints a warning when it finds an unresolved symbol, (id == 0) in id_patch. This can be the case for BTF sets that are empty (due to disabled config options), hence printing warnings for certain builds, most recently seen in [0]. Hence, demote the warning to debug log level to avoid build time noise. [0]: https://lore.kernel.org/all/1b99ae14-abb4-d18f-cc6a-d7e523b25542@xxxxxxxxx Fixes: 0e32dfc80bae ("bpf: Enable TCP congestion control kfunc from modules") Reported-by: Pavel Skripkin <paskripkin@xxxxxxxxx> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx> --- tools/bpf/resolve_btfids/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/bpf/resolve_btfids/main.c b/tools/bpf/resolve_btfids/main.c index a59cb0ee609c..833bfcc9ccf6 100644 --- a/tools/bpf/resolve_btfids/main.c +++ b/tools/bpf/resolve_btfids/main.c @@ -569,7 +569,7 @@ static int id_patch(struct object *obj, struct btf_id *id) int i; if (!id->id) { - pr_err("WARN: resolve_btfids: unresolved symbol %s\n", id->name); + pr_debug("WARN: resolve_btfids: unresolved symbol %s\n", id->name); } for (i = 0; i < id->addr_cnt; i++) { -- 2.33.1
