selftests/bpf: Properly initialize linfo in sockmap_basic

When using -Werror=missing-braces, compiler complains about missing braces. Let's use use ={} initialization which should do the job: tools/testing/selftests/bpf/prog_tests/sockmap_basic.c: In function 'test_sockmap_iter': tools/testing/selftests/bpf/prog_tests/sockmap_basic.c:181:8: error: missing braces around initializer [-Werror=missing-braces] union bpf_iter_link_info linfo = {0}; ^ tools/testing/selftests/bpf/prog_tests/sockmap_basic.c:181:8: error: (near initialization for 'linfo.map') [-Werror=missing-braces] tools/testing/selftests/bpf/prog_tests/sockmap_basic.c: At top level: Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20201002000451.1794044-1-sdf@google.com

Author: fomichev

tools/testing/selftests/bpf/prog_tests/sockmap_basic.c

@@ -198,7 +198,7 @@ static void test_sockmap_copy(enum bpf_map_type map_type)
 {
 DECLARE_LIBBPF_OPTS(bpf_iter_attach_opts, opts);
 int err, len, src_fd, iter_fd, duration = 0;
-union bpf_iter_link_info linfo = {0};
+union bpf_iter_link_info linfo = {};
 __u32 i, num_sockets, num_elems;
 struct bpf_iter_sockmap *skel;
 __s64 *sock_fd = NULL;