map_out_fd 13 tools/testing/selftests/bpf/prog_tests/queue_stack_map.c int i, err, prog_fd, map_in_fd, map_out_fd; map_out_fd 37 tools/testing/selftests/bpf/prog_tests/queue_stack_map.c map_out_fd = bpf_find_map(__func__, obj, "map_out"); map_out_fd 38 tools/testing/selftests/bpf/prog_tests/queue_stack_map.c if (map_out_fd < 0) map_out_fd 82 tools/testing/selftests/bpf/prog_tests/queue_stack_map.c err = bpf_map_lookup_and_delete_elem(map_out_fd, NULL, &val);