part_fields_buf_t
offsetof(part_fields_buf_t, part_link), print_default_cb},
offsetof(part_fields_buf_t, part_pkey), print_default_cb},
offsetof(part_fields_buf_t, part_over), print_default_cb},
offsetof(part_fields_buf_t, part_state), print_default_cb},
offsetof(part_fields_buf_t, part_flags), print_default_cb},
part_fields_buf_t pbuf;