target: remove ->get_device_rev

Now that the reservations and ALUA code have been cleaned up there is no need
for the get_device_rev method, as we only need the standards revision in the
inquiry data, where we can hardcode it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>

drivers/target/target_core_device.c

@@ -1348,8 +1348,6 @@ static void scsi_dump_inquiry(struct se_device *dev)
 
 	device_type = dev->transport->get_device_type(dev);
 	pr_debug("  Type:   %s ", scsi_device_type(device_type));
-	pr_debug("                 ANSI SCSI revision: %02x\n",
-				dev->transport->get_device_rev(dev));
 }
 
 struct se_device *target_alloc_device(struct se_hba *hba, const char *name)

drivers/target/target_core_file.c

@@ -534,7 +534,6 @@ static struct se_subsystem_api fileio_template = {
 	.parse_cdb		= fd_parse_cdb,
 	.set_configfs_dev_params = fd_set_configfs_dev_params,
 	.show_configfs_dev_params = fd_show_configfs_dev_params,
-	.get_device_rev		= sbc_get_device_rev,
 	.get_device_type	= sbc_get_device_type,
 	.get_blocks		= fd_get_blocks,
 };

drivers/target/target_core_iblock.c

@@ -725,7 +725,6 @@ static struct se_subsystem_api iblock_template = {
 	.parse_cdb		= iblock_parse_cdb,
 	.set_configfs_dev_params = iblock_set_configfs_dev_params,
 	.show_configfs_dev_params = iblock_show_configfs_dev_params,
-	.get_device_rev		= sbc_get_device_rev,
 	.get_device_type	= sbc_get_device_type,
 	.get_blocks		= iblock_get_blocks,
 };

drivers/target/target_core_pscsi.c

@@ -1106,18 +1106,6 @@ static int pscsi_execute_cmd(struct se_cmd *cmd)
 	return -ENOMEM;
 }
 
-/*	pscsi_get_device_rev():
- *
- *
- */
-static u32 pscsi_get_device_rev(struct se_device *dev)
-{
-	struct pscsi_dev_virt *pdv = PSCSI_DEV(dev);
-	struct scsi_device *sd = pdv->pdv_sd;
-
-	return (sd->scsi_level - 1) ? sd->scsi_level - 1 : 1;
-}
-
 /*	pscsi_get_device_type():
  *
  *
@@ -1187,7 +1175,6 @@ static struct se_subsystem_api pscsi_template = {
 	.parse_cdb		= pscsi_parse_cdb,
 	.set_configfs_dev_params = pscsi_set_configfs_dev_params,
 	.show_configfs_dev_params = pscsi_show_configfs_dev_params,
-	.get_device_rev		= pscsi_get_device_rev,
 	.get_device_type	= pscsi_get_device_type,
 	.get_blocks		= pscsi_get_blocks,
 };

drivers/target/target_core_rd.c

@@ -449,7 +449,6 @@ static struct se_subsystem_api rd_mcp_template = {
 	.parse_cdb		= rd_parse_cdb,
 	.set_configfs_dev_params = rd_set_configfs_dev_params,
 	.show_configfs_dev_params = rd_show_configfs_dev_params,
-	.get_device_rev		= sbc_get_device_rev,
 	.get_device_type	= sbc_get_device_type,
 	.get_blocks		= rd_get_blocks,
 };

drivers/target/target_core_sbc.c

@@ -604,12 +604,6 @@ int sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops)
 }
 EXPORT_SYMBOL(sbc_parse_cdb);
 
-u32 sbc_get_device_rev(struct se_device *dev)
-{
-	return SCSI_SPC_2; /* Returns SPC-3 in Initiator Data */
-}
-EXPORT_SYMBOL(sbc_get_device_rev);
-
 u32 sbc_get_device_type(struct se_device *dev)
 {
 	return TYPE_DISK;

drivers/target/target_core_spc.c

@@ -78,7 +78,7 @@ static int spc_emulate_inquiry_std(struct se_cmd *cmd, char *buf)
 	if (dev->transport->get_device_type(dev) == TYPE_TAPE)
 		buf[1] = 0x80;
 
-	buf[2] = dev->transport->get_device_rev(dev);
+	buf[2] = 0x05; /* SPC-3 */
 
 	/*
 	 * NORMACA and HISUP = 0, RESPONSE DATA FORMAT = 2

include/target/target_core_backend.h

@@ -32,7 +32,6 @@ struct se_subsystem_api {
 				   unsigned char *);
 
 	int (*parse_cdb)(struct se_cmd *cmd);
-	u32 (*get_device_rev)(struct se_device *);
 	u32 (*get_device_type)(struct se_device *);
 	sector_t (*get_blocks)(struct se_device *);
 	unsigned char *(*get_sense_buffer)(struct se_cmd *);