233 static int nvme_trans_copy_to_user(struct sg_io_hdr *hdr, void *from,  in nvme_trans_copy_to_user()  argument
241 	if (hdr->iovec_count > 0) {  in nvme_trans_copy_to_user()
244 		for (i = 0; i < hdr->iovec_count; i++) {  in nvme_trans_copy_to_user()
245 			if (copy_from_user(&sgl, hdr->dxferp +  in nvme_trans_copy_to_user()
261 	if (copy_to_user(hdr->dxferp, from, n))  in nvme_trans_copy_to_user()
268 static int nvme_trans_copy_from_user(struct sg_io_hdr *hdr, void *to,  in nvme_trans_copy_from_user()  argument
276 	if (hdr->iovec_count > 0) {  in nvme_trans_copy_from_user()
279 		for (i = 0; i < hdr->iovec_count; i++) {  in nvme_trans_copy_from_user()
280 			if (copy_from_user(&sgl, hdr->dxferp +  in nvme_trans_copy_from_user()
295 	if (copy_from_user(to, hdr->dxferp, n))  in nvme_trans_copy_from_user()
302 static int nvme_trans_completion(struct sg_io_hdr *hdr, u8 status, u8 sense_key,  in nvme_trans_completion()  argument
309 		hdr->status = SAM_STAT_GOOD;  in nvme_trans_completion()
310 		hdr->masked_status = GOOD;  in nvme_trans_completion()
311 		hdr->host_status = DID_OK;  in nvme_trans_completion()
312 		hdr->driver_status = DRIVER_OK;  in nvme_trans_completion()
313 		hdr->sb_len_wr = 0;  in nvme_trans_completion()
315 		hdr->status = status;  in nvme_trans_completion()
316 		hdr->masked_status = status >> 1;  in nvme_trans_completion()
317 		hdr->host_status = DID_OK;  in nvme_trans_completion()
318 		hdr->driver_status = DRIVER_OK;  in nvme_trans_completion()
326 		xfer_len = min_t(u8, hdr->mx_sb_len, DESC_FMT_SENSE_DATA_SIZE);  in nvme_trans_completion()
327 		hdr->sb_len_wr = xfer_len;  in nvme_trans_completion()
328 		if (copy_to_user(hdr->sbp, resp, xfer_len) > 0)  in nvme_trans_completion()
341 static int nvme_trans_status_code(struct sg_io_hdr *hdr, int nvme_sc)  in nvme_trans_status_code()  argument
517 	res = nvme_trans_completion(hdr, status, sense_key, asc, ascq);  in nvme_trans_status_code()
524 					struct sg_io_hdr *hdr, u8 *inq_response,  in nvme_trans_standard_inquiry_page()  argument
539 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_standard_inquiry_page()
564 	return nvme_trans_copy_to_user(hdr, inq_response, xfer_len);  in nvme_trans_standard_inquiry_page()
568 					struct sg_io_hdr *hdr, u8 *inq_response,  in nvme_trans_supported_vpd_pages()  argument
584 	return nvme_trans_copy_to_user(hdr, inq_response, xfer_len);  in nvme_trans_supported_vpd_pages()
588 					struct sg_io_hdr *hdr, u8 *inq_response,  in nvme_trans_unit_serial_page()  argument
600 	return nvme_trans_copy_to_user(hdr, inq_response, xfer_len);  in nvme_trans_unit_serial_page()
603 static int nvme_trans_device_id_page(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_device_id_page()  argument
620 		res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_device_id_page()
648 			return nvme_trans_completion(hdr,  in nvme_trans_device_id_page()
666 	return nvme_trans_copy_to_user(hdr, inq_response, xfer_len);  in nvme_trans_device_id_page()
669 static int nvme_trans_ext_inq_page(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_ext_inq_page()  argument
692 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_ext_inq_page()
708 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_ext_inq_page()
727 	res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len);  in nvme_trans_ext_inq_page()
734 static int nvme_trans_bdev_limits_page(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_bdev_limits_page()  argument
751 	return nvme_trans_copy_to_user(hdr, inq_response, 0x3c);  in nvme_trans_bdev_limits_page()
754 static int nvme_trans_bdev_char_page(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_bdev_char_page()  argument
775 	res = nvme_trans_copy_to_user(hdr, inq_response, xfer_len);  in nvme_trans_bdev_char_page()
784 static int nvme_trans_log_supp_pages(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_log_supp_pages()  argument
805 	res = nvme_trans_copy_to_user(hdr, log_response, xfer_len);  in nvme_trans_log_supp_pages()
813 					struct sg_io_hdr *hdr, int alloc_len)  in nvme_trans_log_info_exceptions()  argument
852 	res = nvme_trans_copy_to_user(hdr, log_response, xfer_len);  in nvme_trans_log_info_exceptions()
859 static int nvme_trans_log_temperature(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_log_temperature()  argument
913 	res = nvme_trans_copy_to_user(hdr, log_response, xfer_len);  in nvme_trans_log_temperature()
946 static int nvme_trans_fill_blk_desc(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_fill_blk_desc()  argument
962 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_fill_blk_desc()
990 					struct sg_io_hdr *hdr, u8 *resp,  in nvme_trans_fill_control_page()  argument
1012 					struct sg_io_hdr *hdr,  in nvme_trans_fill_caching_page()  argument
1026 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_fill_caching_page()
1039 					struct sg_io_hdr *hdr, u8 *resp,  in nvme_trans_fill_pow_cnd_page()  argument
1053 					struct sg_io_hdr *hdr, u8 *resp,  in nvme_trans_fill_inf_exc_page()  argument
1067 static int nvme_trans_fill_all_pages(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_fill_all_pages()  argument
1078 	res = nvme_trans_fill_caching_page(ns, hdr, &resp[mode_pages_offset_1],  in nvme_trans_fill_all_pages()
1082 	res = nvme_trans_fill_control_page(ns, hdr, &resp[mode_pages_offset_2],  in nvme_trans_fill_all_pages()
1086 	res = nvme_trans_fill_pow_cnd_page(ns, hdr, &resp[mode_pages_offset_3],  in nvme_trans_fill_all_pages()
1090 	return nvme_trans_fill_inf_exc_page(ns, hdr, &resp[mode_pages_offset_4],  in nvme_trans_fill_all_pages()
1105 					struct sg_io_hdr *hdr, u8 *cmd,  in nvme_trans_mode_page_create()  argument
1109 					struct sg_io_hdr *hdr, u8 *, int),  in nvme_trans_mode_page_create()
1145 		res = nvme_trans_fill_blk_desc(ns, hdr,  in nvme_trans_mode_page_create()
1151 	res = mode_page_fill_func(ns, hdr, &response[mode_pages_offset_1],  in nvme_trans_mode_page_create()
1157 	res = nvme_trans_copy_to_user(hdr, response, xfer_len);  in nvme_trans_mode_page_create()
1205 static int nvme_trans_power_state(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_power_state()  argument
1216 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_power_state()
1254 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_power_state()
1261 	return nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_power_state()
1264 static int nvme_trans_send_activate_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_send_activate_fw_cmd()  argument
1275 	return nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_send_activate_fw_cmd()
1278 static int nvme_trans_send_download_fw_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_send_download_fw_cmd()  argument
1286 	if (hdr->iovec_count > 0) {  in nvme_trans_send_download_fw_cmd()
1288 		return nvme_trans_completion(hdr,  in nvme_trans_send_download_fw_cmd()
1301 			hdr->dxferp, tot_len, NULL, 0);  in nvme_trans_send_download_fw_cmd()
1302 	return nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_send_download_fw_cmd()
1362 static int nvme_trans_modesel_get_mp(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_modesel_get_mp()  argument
1375 		res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_modesel_get_mp()
1382 			res = nvme_trans_completion(hdr,  in nvme_trans_modesel_get_mp()
1391 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_modesel_get_mp()
1400 static int nvme_trans_modesel_data(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_modesel_data()  argument
1419 	res = nvme_trans_copy_from_user(hdr, parm_list, parm_list_len);  in nvme_trans_modesel_data()
1441 			res = nvme_trans_completion(hdr,  in nvme_trans_modesel_data()
1456 		res = nvme_trans_modesel_get_mp(ns, hdr, &parm_list[index],  in nvme_trans_modesel_data()
1472 					     struct sg_io_hdr *hdr)  in nvme_trans_fmt_set_blk_size_count()  argument
1490 		res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_fmt_set_blk_size_count()
1508 static int nvme_trans_fmt_get_parm_header(struct sg_io_hdr *hdr, u8 len,  in nvme_trans_fmt_get_parm_header()  argument
1520 	res = nvme_trans_copy_from_user(hdr, parm_list, len);  in nvme_trans_fmt_get_parm_header()
1526 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_fmt_get_parm_header()
1534 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_fmt_get_parm_header()
1556 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_fmt_get_parm_header()
1568 static int nvme_trans_fmt_send_cmd(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_fmt_send_cmd()  argument
1583 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_fmt_send_cmd()
1597 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_fmt_send_cmd()
1602 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_fmt_send_cmd()
1615 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_fmt_send_cmd()
1621 static inline u32 nvme_trans_io_get_num_cmds(struct sg_io_hdr *hdr,  in nvme_trans_io_get_num_cmds()  argument
1626 	if (hdr->iovec_count > 0)  in nvme_trans_io_get_num_cmds()
1627 		return hdr->iovec_count;  in nvme_trans_io_get_num_cmds()
1647 static int nvme_trans_do_nvme_io(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_do_nvme_io()  argument
1663 	num_cmds = nvme_trans_io_get_num_cmds(hdr, cdb_info, max_blocks);  in nvme_trans_do_nvme_io()
1676 		if (hdr->iovec_count > 0) {  in nvme_trans_do_nvme_io()
1679 			retcode = copy_from_user(&sgl, hdr->dxferp +  in nvme_trans_do_nvme_io()
1691 			next_mapping_addr = hdr->dxferp +  in nvme_trans_do_nvme_io()
1715 	return nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_do_nvme_io()
1721 static int nvme_trans_io(struct nvme_ns *ns, struct sg_io_hdr *hdr, u8 is_write,  in nvme_trans_io()  argument
1745 			return nvme_trans_completion(hdr,  in nvme_trans_io()
1783 	if (hdr->iovec_count > 0) {  in nvme_trans_io()
1784 		for (i = 0; i < hdr->iovec_count; i++) {  in nvme_trans_io()
1785 			not_copied = copy_from_user(&sgl, hdr->dxferp +  in nvme_trans_io()
1793 				res = nvme_trans_completion(hdr,  in nvme_trans_io()
1802 		sum_iov_len = hdr->dxfer_len;  in nvme_trans_io()
1806 	xfer_bytes = min(((u64)hdr->dxfer_len), sum_iov_len);  in nvme_trans_io()
1819 	res = nvme_trans_do_nvme_io(ns, hdr, &cdb_info, is_write);  in nvme_trans_io()
1827 static int nvme_trans_inquiry(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_inquiry()  argument
1849 			res = nvme_trans_standard_inquiry_page(ns, hdr,  in nvme_trans_inquiry()
1852 			res = nvme_trans_completion(hdr,  in nvme_trans_inquiry()
1861 			res = nvme_trans_supported_vpd_pages(ns, hdr,  in nvme_trans_inquiry()
1865 			res = nvme_trans_unit_serial_page(ns, hdr, inq_response,  in nvme_trans_inquiry()
1869 			res = nvme_trans_device_id_page(ns, hdr, inq_response,  in nvme_trans_inquiry()
1873 			res = nvme_trans_ext_inq_page(ns, hdr, alloc_len);  in nvme_trans_inquiry()
1876 			res = nvme_trans_bdev_limits_page(ns, hdr, inq_response,  in nvme_trans_inquiry()
1880 			res = nvme_trans_bdev_char_page(ns, hdr, alloc_len);  in nvme_trans_inquiry()
1883 			res = nvme_trans_completion(hdr,  in nvme_trans_inquiry()
1896 static int nvme_trans_log_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_log_sense()  argument
1905 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_log_sense()
1914 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_log_sense()
1922 		res = nvme_trans_log_supp_pages(ns, hdr, alloc_len);  in nvme_trans_log_sense()
1925 		res = nvme_trans_log_info_exceptions(ns, hdr, alloc_len);  in nvme_trans_log_sense()
1928 		res = nvme_trans_log_temperature(ns, hdr, alloc_len);  in nvme_trans_log_sense()
1931 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_log_sense()
1941 static int nvme_trans_mode_select(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_mode_select()  argument
1964 		return nvme_trans_modesel_data(ns, hdr, cmd, parm_list_len,  in nvme_trans_mode_select()
1971 static int nvme_trans_mode_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_mode_sense()  argument
1987 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_mode_sense()
1995 		res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len,  in nvme_trans_mode_sense()
2001 		res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len,  in nvme_trans_mode_sense()
2007 		res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len,  in nvme_trans_mode_sense()
2013 		res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len,  in nvme_trans_mode_sense()
2019 		res = nvme_trans_mode_page_create(ns, hdr, cmd, alloc_len,  in nvme_trans_mode_sense()
2025 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_mode_sense()
2035 static int nvme_trans_read_capacity(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_read_capacity()  argument
2056 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_read_capacity()
2068 	res = nvme_trans_copy_to_user(hdr, response, xfer_len);  in nvme_trans_read_capacity()
2076 static int nvme_trans_report_luns(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_report_luns()  argument
2091 		return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_report_luns()
2098 		res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_report_luns()
2107 			res = nvme_trans_completion(hdr,  in nvme_trans_report_luns()
2135 	res = nvme_trans_copy_to_user(hdr, response, xfer_len);  in nvme_trans_report_luns()
2143 static int nvme_trans_request_sense(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_request_sense()  argument
2185 	res = nvme_trans_copy_to_user(hdr, response, xfer_len);  in nvme_trans_request_sense()
2193 					struct sg_io_hdr *hdr,  in nvme_trans_security_protocol()  argument
2196 	return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_security_protocol()
2202 					struct sg_io_hdr *hdr)  in nvme_trans_synchronize_cache()  argument
2212 	return nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_synchronize_cache()
2215 static int nvme_trans_start_stop(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_start_stop()  argument
2227 		return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_start_stop()
2233 			int res = nvme_trans_synchronize_cache(ns, hdr);  in nvme_trans_start_stop()
2238 		return nvme_trans_power_state(ns, hdr, pc, pcmod, start);  in nvme_trans_start_stop()
2242 static int nvme_trans_format_unit(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_format_unit()  argument
2262 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_format_unit()
2274 		res = nvme_trans_fmt_get_parm_header(hdr, parm_hdr_len,  in nvme_trans_format_unit()
2281 	res = nvme_trans_send_activate_fw_cmd(ns, hdr, 0);  in nvme_trans_format_unit()
2284 	res = nvme_trans_fmt_set_blk_size_count(ns, hdr);  in nvme_trans_format_unit()
2288 	res = nvme_trans_fmt_send_cmd(ns, hdr, nvme_pf_code);  in nvme_trans_format_unit()
2295 					struct sg_io_hdr *hdr,  in nvme_trans_test_unit_ready()  argument
2301 		return nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_test_unit_ready()
2305 		return nvme_trans_completion(hdr, SAM_STAT_GOOD, NO_SENSE, 0, 0);  in nvme_trans_test_unit_ready()
2308 static int nvme_trans_write_buffer(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_write_buffer()  argument
2318 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_write_buffer()
2325 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_write_buffer()
2335 		res = nvme_trans_send_download_fw_cmd(ns, hdr, nvme_admin_download_fw,  in nvme_trans_write_buffer()
2340 		res = nvme_trans_send_activate_fw_cmd(ns, hdr, buffer_id);  in nvme_trans_write_buffer()
2343 		res = nvme_trans_send_download_fw_cmd(ns, hdr, nvme_admin_download_fw,  in nvme_trans_write_buffer()
2348 		res = nvme_trans_send_activate_fw_cmd(ns, hdr, buffer_id);  in nvme_trans_write_buffer()
2351 		res = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_trans_write_buffer()
2374 static int nvme_trans_unmap(struct nvme_ns *ns, struct sg_io_hdr *hdr,  in nvme_trans_unmap()  argument
2391 	res = nvme_trans_copy_from_user(hdr, plist, list_len);  in nvme_trans_unmap()
2421 	res = nvme_trans_status_code(hdr, nvme_sc);  in nvme_trans_unmap()
2429 static int nvme_scsi_translate(struct nvme_ns *ns, struct sg_io_hdr *hdr)  in nvme_scsi_translate()  argument
2435 	if (hdr->cmdp == NULL)  in nvme_scsi_translate()
2437 	if (copy_from_user(cmd, hdr->cmdp, hdr->cmd_len))  in nvme_scsi_translate()
2444 	retcode = nvme_trans_status_code(hdr, NVME_SC_SUCCESS);  in nvme_scsi_translate()
2455 		retcode = nvme_trans_io(ns, hdr, 0, cmd);  in nvme_scsi_translate()
2461 		retcode = nvme_trans_io(ns, hdr, 1, cmd);  in nvme_scsi_translate()
2464 		retcode = nvme_trans_inquiry(ns, hdr, cmd);  in nvme_scsi_translate()
2467 		retcode = nvme_trans_log_sense(ns, hdr, cmd);  in nvme_scsi_translate()
2471 		retcode = nvme_trans_mode_select(ns, hdr, cmd);  in nvme_scsi_translate()
2475 		retcode = nvme_trans_mode_sense(ns, hdr, cmd);  in nvme_scsi_translate()
2478 		retcode = nvme_trans_read_capacity(ns, hdr, cmd, 0);  in nvme_scsi_translate()
2483 			retcode = nvme_trans_read_capacity(ns, hdr, cmd, 1);  in nvme_scsi_translate()
2490 		retcode = nvme_trans_report_luns(ns, hdr, cmd);  in nvme_scsi_translate()
2493 		retcode = nvme_trans_request_sense(ns, hdr, cmd);  in nvme_scsi_translate()
2497 		retcode = nvme_trans_security_protocol(ns, hdr, cmd);  in nvme_scsi_translate()
2500 		retcode = nvme_trans_start_stop(ns, hdr, cmd);  in nvme_scsi_translate()
2503 		retcode = nvme_trans_synchronize_cache(ns, hdr);  in nvme_scsi_translate()
2506 		retcode = nvme_trans_format_unit(ns, hdr, cmd);  in nvme_scsi_translate()
2509 		retcode = nvme_trans_test_unit_ready(ns, hdr, cmd);  in nvme_scsi_translate()
2512 		retcode = nvme_trans_write_buffer(ns, hdr, cmd);  in nvme_scsi_translate()
2515 		retcode = nvme_trans_unmap(ns, hdr, cmd);  in nvme_scsi_translate()
2519 		retcode = nvme_trans_completion(hdr, SAM_STAT_CHECK_CONDITION,  in nvme_scsi_translate()
2529 	struct sg_io_hdr hdr;  in nvme_sg_io()  local
2534 	if (copy_from_user(&hdr, u_hdr, sizeof(hdr)))  in nvme_sg_io()
2536 	if (hdr.interface_id != 'S')  in nvme_sg_io()
2538 	if (hdr.cmd_len > BLK_MAX_CDB)  in nvme_sg_io()
2545 	retcode = nvme_scsi_translate(ns, &hdr);  in nvme_sg_io()
2548 	if (copy_to_user(u_hdr, &hdr, sizeof(sg_io_hdr_t)) > 0)  in nvme_sg_io()