map_in_fd 13 tools/testing/selftests/bpf/prog_tests/queue_stack_map.c int i, err, prog_fd, map_in_fd, map_out_fd; map_in_fd 33 tools/testing/selftests/bpf/prog_tests/queue_stack_map.c map_in_fd = bpf_find_map(__func__, obj, "map_in"); map_in_fd 34 tools/testing/selftests/bpf/prog_tests/queue_stack_map.c if (map_in_fd < 0) map_in_fd 43 tools/testing/selftests/bpf/prog_tests/queue_stack_map.c err = bpf_map_update_elem(map_in_fd, NULL, &vals[i], 0);