SUBSYS_ATTR_RO   2556 drivers/nvme/host/core.c static SUBSYS_ATTR_RO(subsysnqn, S_IRUGO, nvme_subsys_show_nqn);
SUBSYS_ATTR_RO   2567 drivers/nvme/host/core.c static SUBSYS_ATTR_RO(field, S_IRUGO, subsys_##field##_show);