scsi: drop bus reset for wd33c93-compatible boards

The bus reset function is just a wrapper calling host reset under the
host lock. So move taking of the host lock into the host reset function
and drop bus reset.

Signed-off-by: Hannes Reinecke <[e-mail]>
Reviewed-by: Christoph Hellwig <[e-mail]>
Reviewed-by: Johannes Thumshirn <[e-mail]>
Signed-off-by: Martin K. Petersen <[e-mail]>

drivers/scsi/a2091.c

···
 	}
 }
 
-static int a2091_bus_reset(struct scsi_cmnd *cmd)
-{
-	struct Scsi_Host *instance = cmd->device->host;
-
-	/* FIXME perform bus-specific reset */
-
-	/* FIXME 2: kill this function, and let midlayer fall back
-	   to the same action, calling wd33c93_host_reset() */
-
-	spin_lock_irq(instance->host_lock);
-	wd33c93_host_reset(cmd);
-	spin_unlock_irq(instance->host_lock);
-
-	return SUCCESS;
-}
-
 static struct scsi_host_template a2091_scsi_template = {
 	.module			= THIS_MODULE,
 	.name			= "Commodore A2091/A590 SCSI",
···
 	.proc_name		= "A2901",
 	.queuecommand		= wd33c93_queuecommand,
 	.eh_abort_handler	= wd33c93_abort,
-	.eh_bus_reset_handler	= a2091_bus_reset,
 	.eh_host_reset_handler	= wd33c93_host_reset,
 	.can_queue		= CAN_QUEUE,
 	.this_id		= 7,

drivers/scsi/a3000.c

···
 	}
 }
 
-static int a3000_bus_reset(struct scsi_cmnd *cmd)
-{
-	struct Scsi_Host *instance = cmd->device->host;
-
-	/* FIXME perform bus-specific reset */
-
-	/* FIXME 2: kill this entire function, which should
-	   cause mid-layer to call wd33c93_host_reset anyway? */
-
-	spin_lock_irq(instance->host_lock);
-	wd33c93_host_reset(cmd);
-	spin_unlock_irq(instance->host_lock);
-
-	return SUCCESS;
-}
-
 static struct scsi_host_template amiga_a3000_scsi_template = {
 	.module			= THIS_MODULE,
 	.name			= "Amiga 3000 built-in SCSI",
···
 	.proc_name		= "A3000",
 	.queuecommand		= wd33c93_queuecommand,
 	.eh_abort_handler	= wd33c93_abort,
-	.eh_bus_reset_handler	= a3000_bus_reset,
 	.eh_host_reset_handler	= wd33c93_host_reset,
 	.can_queue		= CAN_QUEUE,
 	.this_id		= 7,

drivers/scsi/gvp11.c

···
 	}
 }
 
-static int gvp11_bus_reset(struct scsi_cmnd *cmd)
-{
-	struct Scsi_Host *instance = cmd->device->host;
-
-	/* FIXME perform bus-specific reset */
-
-	/* FIXME 2: shouldn't we no-op this function (return
-	   FAILED), and fall back to host reset function,
-	   wd33c93_host_reset ? */
-
-	spin_lock_irq(instance->host_lock);
-	wd33c93_host_reset(cmd);
-	spin_unlock_irq(instance->host_lock);
-
-	return SUCCESS;
-}
-
 static struct scsi_host_template gvp11_scsi_template = {
 	.module			= THIS_MODULE,
 	.name			= "GVP Series II SCSI",
···
 	.proc_name		= "GVP11",
 	.queuecommand		= wd33c93_queuecommand,
 	.eh_abort_handler	= wd33c93_abort,
-	.eh_bus_reset_handler	= gvp11_bus_reset,
 	.eh_host_reset_handler	= wd33c93_host_reset,
 	.can_queue		= CAN_QUEUE,
 	.this_id		= 7,

drivers/scsi/mvme147.c

···
 	return 0;
 }
 
-static int mvme147_bus_reset(struct scsi_cmnd *cmd)
-{
-	/* FIXME perform bus-specific reset */
-
-	/* FIXME 2: kill this function, and let midlayer fallback to
-	   the same result, calling wd33c93_host_reset() */
-
-	spin_lock_irq(cmd->device->host->host_lock);
-	wd33c93_host_reset(cmd);
-	spin_unlock_irq(cmd->device->host->host_lock);
-
-	return SUCCESS;
-}
-
-
 static struct scsi_host_template driver_template = {
 	.proc_name		= "MVME147",
 	.name			= "MVME147 built-in SCSI",
···
 	.release		= mvme147_release,
 	.queuecommand		= wd33c93_queuecommand,
 	.eh_abort_handler	= wd33c93_abort,
-	.eh_bus_reset_handler	= mvme147_bus_reset,
 	.eh_host_reset_handler	= wd33c93_host_reset,
 	.can_queue		= CAN_QUEUE,
 	.this_id		= 7,

drivers/scsi/sgiwd93.c

···
 	hcp->desc.pnext = hdata->dma;
 }
 
-static int sgiwd93_bus_reset(struct scsi_cmnd *cmd)
-{
-	/* FIXME perform bus-specific reset */
-
-	/* FIXME 2: kill this function, and let midlayer fallback
-	   to the same result, calling wd33c93_host_reset() */
-
-	spin_lock_irq(cmd->device->host->host_lock);
-	wd33c93_host_reset(cmd);
-	spin_unlock_irq(cmd->device->host->host_lock);
-
-	return SUCCESS;
-}
-
 /*
  * Kludge alert - the SCSI code calls the abort and reset method with int
  * arguments not with pointers.  So this is going to blow up beautyfully
···
 	.name			= "SGI WD93",
 	.queuecommand		= wd33c93_queuecommand,
 	.eh_abort_handler	= wd33c93_abort,
-	.eh_bus_reset_handler	= sgiwd93_bus_reset,
 	.eh_host_reset_handler	= wd33c93_host_reset,
 	.can_queue		= 16,
 	.this_id		= 7,

drivers/scsi/wd33c93.c

···
 	int i;
 
 	instance = SCpnt->device->host;
+	spin_lock_irq(instance->host_lock);
 	hostdata = (struct WD33C93_hostdata *) instance->hostdata;
 
 	printk("scsi%d: reset. ", instance->host_no);
···
 	reset_wd33c93(instance);
 	SCpnt->result = DID_RESET << 16;
 	enable_irq(instance->irq);
+	spin_unlock_irq(instance->host_lock);
 	return SUCCESS;
 }