Most drivers use exactly the same implementation, so provide it as a
library function.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Bart Van Assche <bvanassche@xxxxxxx>
Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Reviewed-by: Hannes Reinecke <hare@xxxxxxx>
---
drivers/infiniband/ulp/srp/ib_srp.c | 24 +-----------------------
drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +-
drivers/scsi/esas2r/esas2r.h | 1 -
drivers/scsi/esas2r/esas2r_main.c | 20 +-------------------
drivers/scsi/fcoe/fcoe.c | 2 +-
drivers/scsi/fnic/fnic_main.c | 2 +-
drivers/scsi/ibmvscsi/ibmvfc.c | 25 +------------------------
drivers/scsi/ipr.c | 20 +++-----------------
drivers/scsi/libfc/fc_fcp.c | 20 --------------------
drivers/scsi/lpfc/lpfc_scsi.c | 24 ++----------------------
drivers/scsi/mpt2sas/mpt2sas_scsih.c | 24 +-----------------------
drivers/scsi/mpt3sas/mpt3sas_scsih.c | 25 +------------------------
drivers/scsi/pmcraid.c | 14 ++++----------
drivers/scsi/qla2xxx/qla_os.c | 18 +-----------------
drivers/scsi/scsi.c | 20 ++++++++++++++++++++
drivers/scsi/scsi_debug.c | 9 +--------
drivers/target/loopback/tcm_loop.c | 17 +----------------
include/scsi/libfc.h | 1 -
include/scsi/scsi_tcq.h | 2 ++
19 files changed, 42 insertions(+), 228 deletions(-)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 62d2a18..51670d7 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2259,28 +2259,6 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
}
/**
- * srp_change_queue_type - changing device queue tag type
- * @sdev: scsi device struct
- * @tag_type: requested tag type
- *
- * Returns queue tag type.
- */
-static int
-srp_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag_type);
- if (tag_type)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag_type = 0;
-
- return tag_type;
-}
-
-/**
* srp_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
* @qdepth: requested queue depth
@@ -2600,7 +2578,7 @@ static struct scsi_host_template srp_template = {
.info = srp_target_info,
.queuecommand = srp_queuecommand,
.change_queue_depth = srp_change_queue_depth,
- .change_queue_type = srp_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.eh_abort_handler = srp_abort,
.eh_device_reset_handler = srp_reset_device,
.eh_host_reset_handler = srp_reset_host,
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 79e5c94..3c6dc8a 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -2784,7 +2784,7 @@ static struct scsi_host_template bnx2fc_shost_template = {
.eh_host_reset_handler = fc_eh_host_reset,
.slave_alloc = fc_slave_alloc,
.change_queue_depth = fc_change_queue_depth,
- .change_queue_type = fc_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h
index 3fd305d..20ab211 100644
--- a/drivers/scsi/esas2r/esas2r.h
+++ b/drivers/scsi/esas2r/esas2r.h
@@ -976,7 +976,6 @@ int esas2r_slave_alloc(struct scsi_device *dev);
int esas2r_slave_configure(struct scsi_device *dev);
void esas2r_slave_destroy(struct scsi_device *dev);
int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason);
-int esas2r_change_queue_type(struct scsi_device *dev, int type);
long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
/* SCSI error handler (eh) functions */
diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
index 45aa684..be09c62 100644
--- a/drivers/scsi/esas2r/esas2r_main.c
+++ b/drivers/scsi/esas2r/esas2r_main.c
@@ -258,7 +258,7 @@ static struct scsi_host_template driver_template = {
.slave_alloc = esas2r_slave_alloc,
.slave_destroy = esas2r_slave_destroy,
.change_queue_depth = esas2r_change_queue_depth,
- .change_queue_type = esas2r_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.max_sectors = 0xFFFF,
};
@@ -1268,24 +1268,6 @@ int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason)
return dev->queue_depth;
}
-int esas2r_change_queue_type(struct scsi_device *dev, int type)
-{
- esas2r_log(ESAS2R_LOG_INFO, "change_queue_type %p, %d", dev, type);
-
- if (dev->tagged_supported) {
- scsi_set_tag_type(dev, type);
-
- if (type)
- scsi_activate_tcq(dev, dev->queue_depth);
- else
- scsi_deactivate_tcq(dev, dev->queue_depth);
- } else {
- type = 0;
- }
-
- return type;
-}
-
int esas2r_slave_alloc(struct scsi_device *dev)
{
return 0;
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 4a8ac7d..86956cc 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -281,7 +281,7 @@ static struct scsi_host_template fcoe_shost_template = {
.eh_host_reset_handler = fc_eh_host_reset,
.slave_alloc = fc_slave_alloc,
.change_queue_depth = fc_change_queue_depth,
- .change_queue_type = fc_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.can_queue = FCOE_MAX_OUTSTANDING_COMMANDS,
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index 8c56fdc..8581ce6 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -113,7 +113,7 @@ static struct scsi_host_template fnic_host_template = {
.eh_host_reset_handler = fnic_host_reset,
.slave_alloc = fnic_slave_alloc,
.change_queue_depth = fc_change_queue_depth,
- .change_queue_type = fc_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.can_queue = FNIC_DFLT_IO_REQ,
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index 598c42c..48d19a3 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -2929,29 +2929,6 @@ static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth,
return sdev->queue_depth;
}
-/**
- * ibmvfc_change_queue_type - Change the device's queue type
- * @sdev: scsi device struct
- * @tag_type: type of tags to use
- *
- * Return value:
- * actual queue type set
- **/
-static int ibmvfc_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag_type);
-
- if (tag_type)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag_type = 0;
-
- return tag_type;
-}
-
static ssize_t ibmvfc_show_host_partition_name(struct device *dev,
struct device_attribute *attr, char *buf)
{
@@ -3133,7 +3110,7 @@ static struct scsi_host_template driver_template = {
.target_alloc = ibmvfc_target_alloc,
.scan_finished = ibmvfc_scan_finished,
.change_queue_depth = ibmvfc_change_queue_depth,
- .change_queue_type = ibmvfc_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.cmd_per_lun = 16,
.can_queue = IBMVFC_MAX_REQUESTS_DEFAULT,
.this_id = -1,
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 2a9578c..3d689f6 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -4364,24 +4364,10 @@ static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
res = (struct ipr_resource_entry *)sdev->hostdata;
-
- if (res) {
- if (ipr_is_gscsi(res) && sdev->tagged_supported) {
- /*
- * We don't bother quiescing the device here since the
- * adapter firmware does it for us.
- */
- scsi_set_tag_type(sdev, tag_type);
-
- if (tag_type)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag_type = 0;
- } else
+ if (res && ipr_is_gscsi(res))
+ tag_type = scsi_change_queue_type(sdev, tag_type);
+ else
tag_type = 0;
-
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
return tag_type;
}
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 1d7e76e..f3043ad 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -2196,26 +2196,6 @@ int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
EXPORT_SYMBOL(fc_change_queue_depth);
/**
- * fc_change_queue_type() - Change a device's queue type
- * @sdev: The SCSI device whose queue depth is to change
- * @tag_type: Identifier for queue type
- */
-int fc_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag_type);
- if (tag_type)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag_type = 0;
-
- return tag_type;
-}
-EXPORT_SYMBOL(fc_change_queue_type);
-
-/**
* fc_fcp_destory() - Tear down the FCP layer for a given local port
* @lport: The local port that no longer needs the FCP layer
*/
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index b99399f..2896e52 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -345,26 +345,6 @@ lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
}
/**
- * lpfc_change_queue_type() - Change a device's scsi tag queuing type
- * @sdev: Pointer the scsi device whose queue depth is to change
- * @tag_type: Identifier for queue tag type
- */
-static int
-lpfc_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag_type);
- if (tag_type)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag_type = 0;
-
- return tag_type;
-}
-
-/**
* lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread
* @phba: The Hba for which this call is being executed.
*
@@ -6019,7 +5999,7 @@ struct scsi_host_template lpfc_template = {
.max_sectors = 0xFFFF,
.vendor_id = LPFC_NL_VENDOR_ID,
.change_queue_depth = lpfc_change_queue_depth,
- .change_queue_type = lpfc_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
};
struct scsi_host_template lpfc_vport_template = {
@@ -6042,5 +6022,5 @@ struct scsi_host_template lpfc_vport_template = {
.shost_attrs = lpfc_vport_attrs,
.max_sectors = 0xFFFF,
.change_queue_depth = lpfc_change_queue_depth,
- .change_queue_type = lpfc_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
};
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index c80ed04..ec36b91 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -1255,28 +1255,6 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
}
/**
- * _scsih_change_queue_type - changing device queue tag type
- * @sdev: scsi device struct
- * @tag_type: requested tag type
- *
- * Returns queue tag type.
- */
-static int
-_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag_type);
- if (tag_type)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag_type = 0;
-
- return tag_type;
-}
-
-/**
* _scsih_target_alloc - target add routine
* @starget: scsi target struct
*
@@ -7653,7 +7631,7 @@ static struct scsi_host_template scsih_driver_template = {
.scan_finished = _scsih_scan_finished,
.scan_start = _scsih_scan_start,
.change_queue_depth = _scsih_change_queue_depth,
- .change_queue_type = _scsih_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.eh_abort_handler = _scsih_abort,
.eh_device_reset_handler = _scsih_dev_reset,
.eh_target_reset_handler = _scsih_target_reset,
diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
index 857276b..52464ac 100644
--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
@@ -1123,29 +1123,6 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
}
/**
- * _scsih_change_queue_type - changing device queue tag type
- * @sdev: scsi device struct
- * @tag_type: requested tag type
- *
- * Returns queue tag type.
- */
-static int
-_scsih_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag_type);
- if (tag_type)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag_type = 0;
-
- return tag_type;
-}
-
-
-/**
* _scsih_target_alloc - target add routine
* @starget: scsi target struct
*
@@ -7284,7 +7261,7 @@ static struct scsi_host_template scsih_driver_template = {
.scan_finished = _scsih_scan_finished,
.scan_start = _scsih_scan_start,
.change_queue_depth = _scsih_change_queue_depth,
- .change_queue_type = _scsih_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.eh_abort_handler = _scsih_abort,
.eh_device_reset_handler = _scsih_dev_reset,
.eh_target_reset_handler = _scsih_target_reset,
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index bcb64eb..2233ed6 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -321,16 +321,10 @@ static int pmcraid_change_queue_type(struct scsi_device *scsi_dev, int tag)
struct pmcraid_resource_entry *res;
res = (struct pmcraid_resource_entry *)scsi_dev->hostdata;
-
- if ((res) && scsi_dev->tagged_supported &&
- (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) {
- scsi_set_tag_type(scsi_dev, tag);
-
- if (tag)
- scsi_activate_tcq(scsi_dev, scsi_dev->queue_depth);
- else
- scsi_deactivate_tcq(scsi_dev, scsi_dev->queue_depth);
- } else
+ if (res && scsi_dev->tagged_supported &&
+ (RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry)))
+ tag = scsi_change_queue_type(scsi_dev, tag);
+ else
tag = 0;
return tag;
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index db3dbd9..5e75574 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -237,7 +237,6 @@ static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
-static int qla2x00_change_queue_type(struct scsi_device *, int);
static void qla2x00_clear_drv_active(struct qla_hw_data *);
static void qla2x00_free_device(scsi_qla_host_t *);
static void qla83xx_disable_laser(scsi_qla_host_t *vha);
@@ -260,7 +259,7 @@ struct scsi_host_template qla2xxx_driver_template = {
.scan_finished = qla2xxx_scan_finished,
.scan_start = qla2xxx_scan_start,
.change_queue_depth = qla2x00_change_queue_depth,
- .change_queue_type = qla2x00_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
@@ -1473,21 +1472,6 @@ qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
return sdev->queue_depth;
}
-static int
-qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag_type);
- if (tag_type)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag_type = 0;
-
- return tag_type;
-}
-
/**
* qla2x00_config_dma_addressing() - Configure OS DMA addressing method.
* @ha: HA context
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index bc52bbd..9baeff0 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -867,6 +867,26 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth)
EXPORT_SYMBOL(scsi_track_queue_full);
/**
+ * scsi_change_queue_type() - Change a device's queue type
+ * @sdev: The SCSI device whose queue depth is to change
+ * @tag_type: Identifier for queue type
+ */
+int scsi_change_queue_type(struct scsi_device *sdev, int tag_type)
+{
+ if (sdev->tagged_supported) {
+ scsi_set_tag_type(sdev, tag_type);
+ if (tag_type)
+ scsi_activate_tcq(sdev, sdev->queue_depth);
+ else
+ scsi_deactivate_tcq(sdev, sdev->queue_depth);
+ } else
+ tag_type = 0;
+
+ return tag_type;
+}
+EXPORT_SYMBOL(scsi_change_queue_type);
+
+/**
* scsi_vpd_inquiry - Request a device provide us with a VPD page
* @sdev: The device to ask
* @buffer: Where to put the result
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 238e06f..7bcace2 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -4532,14 +4532,7 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason)
static int
sdebug_change_qtype(struct scsi_device *sdev, int qtype)
{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, qtype);
- if (qtype)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- qtype = 0;
+ qtype = scsi_change_queue_type(sdev, qtype);
if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) {
const char *cp;
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index ab3ab27..3b9c768 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -135,21 +135,6 @@ static int tcm_loop_change_queue_depth(
return sdev->queue_depth;
}
-static int tcm_loop_change_queue_type(struct scsi_device *sdev, int tag)
-{
- if (sdev->tagged_supported) {
- scsi_set_tag_type(sdev, tag);
-
- if (tag)
- scsi_activate_tcq(sdev, sdev->queue_depth);
- else
- scsi_deactivate_tcq(sdev, sdev->queue_depth);
- } else
- tag = 0;
-
- return tag;
-}
-
/*
* Locate the SAM Task Attr from struct scsi_cmnd *
*/
@@ -451,7 +436,7 @@ static struct scsi_host_template tcm_loop_driver_template = {
.name = "TCM_Loopback",
.queuecommand = tcm_loop_queuecommand,
.change_queue_depth = tcm_loop_change_queue_depth,
- .change_queue_type = tcm_loop_change_queue_type,
+ .change_queue_type = scsi_change_queue_type,
.eh_abort_handler = tcm_loop_abort_task,
.eh_device_reset_handler = tcm_loop_device_reset,
.eh_target_reset_handler = tcm_loop_target_reset,
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 52beadf..2e0cf56 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -1106,7 +1106,6 @@ int fc_eh_device_reset(struct scsi_cmnd *);
int fc_eh_host_reset(struct scsi_cmnd *);
int fc_slave_alloc(struct scsi_device *);
int fc_change_queue_depth(struct scsi_device *, int qdepth, int reason);
-int fc_change_queue_type(struct scsi_device *, int tag_type);
/*
* ELS/CT interface
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 7529c6a..1712dab 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -16,6 +16,8 @@
#ifdef CONFIG_BLOCK
+int scsi_change_queue_type(struct scsi_device *sdev, int tag_type);
+
/**
* scsi_get_tag_type - get the type of tag the device supports
* @sdev: the scsi device
--
1.9.1
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