Stanislav Fomichev <sdf@xxxxxxxxxx> writes: > Commit ccc3f56918f6 ("selftests/bpf: convert remaining legacy map > definitions") converted sample_map_ret0.c to modern BTF map format. > However, it doesn't looks like iproute2 part that attaches XDP > supports this format. It does if it's linked against libbpf; what distro are you on that doesn't do that? -Toke