scsi: scsi_transport_fc: Simplify alloc_workqueue() invocations

Let alloc_workqueue() format the workqueue name instead of calling
snprintf() explicitly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20240822195944.654691-16-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

Author: bvanassche

drivers/scsi/scsi_transport_fc.c

@@ -441,18 +441,13 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev,
 	fc_host->next_vport_number = 0;
 	fc_host->npiv_vports_inuse = 0;
 
-	snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name),
-		 "fc_wq_%d", shost->host_no);
-	fc_host->work_q = alloc_workqueue("%s", 0, 0, fc_host->work_q_name);
+	fc_host->work_q = alloc_workqueue("fc_wq_%d", 0, 0, shost->host_no);
 	if (!fc_host->work_q)
 		return -ENOMEM;
 
 	fc_host->dev_loss_tmo = fc_dev_loss_tmo;
-	snprintf(fc_host->devloss_work_q_name,
-		 sizeof(fc_host->devloss_work_q_name),
-		 "fc_dl_%d", shost->host_no);
-	fc_host->devloss_work_q = alloc_workqueue("%s", 0, 0,
-					fc_host->devloss_work_q_name);
+	fc_host->devloss_work_q = alloc_workqueue("fc_dl_%d", 0, 0,
+					shost->host_no);
 	if (!fc_host->devloss_work_q) {
 		destroy_workqueue(fc_host->work_q);
 		fc_host->work_q = NULL;

include/scsi/scsi_transport_fc.h

@@ -575,9 +575,7 @@ struct fc_host_attrs {
 	u16 npiv_vports_inuse;
 
 	/* work queues for rport state manipulation */
-	char work_q_name[20];
 	struct workqueue_struct *work_q;
-	char devloss_work_q_name[20];
 	struct workqueue_struct *devloss_work_q;
 
 	/* bsg support */
@@ -654,12 +652,8 @@ struct fc_host_attrs {
 	(((struct fc_host_attrs *)(x)->shost_data)->next_vport_number)
 #define fc_host_npiv_vports_inuse(x)	\
 	(((struct fc_host_attrs *)(x)->shost_data)->npiv_vports_inuse)
-#define fc_host_work_q_name(x) \
-	(((struct fc_host_attrs *)(x)->shost_data)->work_q_name)
 #define fc_host_work_q(x) \
 	(((struct fc_host_attrs *)(x)->shost_data)->work_q)
-#define fc_host_devloss_work_q_name(x) \
-	(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
 #define fc_host_devloss_work_q(x) \
 	(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
 #define fc_host_dev_loss_tmo(x) \