is_tracing_multi
multi_func = is_tracing_multi(attr->expected_attach_type);
else if (is_tracing_multi(prog->expected_attach_type))
return is_tracing_multi(prog->expected_attach_type) && bpf_multi_func_btf_id[0] == btf_id;
is_tracing_multi(prog->expected_attach_type))
if (is_tracing_multi(prog->expected_attach_type)) {