[SCSI] zfcp: Remove UNIT_REGISTERED status flag

Use the device pointer in zfcp_unit for tracking if we have a
registered SCSI device. With this approach, the flag
ZFCP_STATUS_UNIT_REGISTERED is only redundant and can be removed.

Acked-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

1 files changed, 1 insertions, 3 deletions

diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index 9dc42a68fbdd..7829c72d83d0 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -27,7 +27,6 @@ char *zfcp_get_fcp_sns_info_ptr(struct fcp_rsp_iu *fcp_rsp_iu)
 static void zfcp_scsi_slave_destroy(struct scsi_device *sdpnt)
 {
         struct zfcp_unit *unit = (struct zfcp_unit *) sdpnt->hostdata;
-        atomic_clear_mask(ZFCP_STATUS_UNIT_REGISTERED, &unit->status);
         unit->device = NULL;
         zfcp_erp_unit_failed(unit, 12, NULL);
         zfcp_unit_put(unit);
@@ -133,8 +132,7 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdp)
 
         read_lock_irqsave(&zfcp_data.config_lock, flags);
         unit = zfcp_unit_lookup(adapter, sdp->channel, sdp->id, sdp->lun);
-        if (unit &&
-            (atomic_read(&unit->status) & ZFCP_STATUS_UNIT_REGISTERED)) {
+        if (unit) {
                 sdp->hostdata = unit;
                 unit->device = sdp;
                 zfcp_unit_get(unit);