[PATCH 03/16] mptfc: simplify mpt_fc_block_error_handler()

[Hannes Reinecke <hare@suse.de>]

Instead of passing the a function we can as well return a status
and call the function directly afterwards.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
---
 drivers/message/fusion/mptfc.c | 83 ++++++++++++++++++++++------------
 1 file changed, 54 insertions(+), 29 deletions(-)

diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c
index fac747109209..ea8fc32dacfa 100644
--- a/drivers/message/fusion/mptfc.c
+++ b/drivers/message/fusion/mptfc.c
@@ -183,73 +183,98 @@ static struct fc_function_template mptfc_transport_functions = {
 };
 
 static int
-mptfc_block_error_handler(struct scsi_cmnd *SCpnt,
-			  int (*func)(struct scsi_cmnd *SCpnt),
-			  const char *caller)
+mptfc_block_error_handler(struct fc_rport *rport)
 {
 	MPT_SCSI_HOST		*hd;
-	struct scsi_device	*sdev = SCpnt->device;
-	struct Scsi_Host	*shost = sdev->host;
-	struct fc_rport		*rport = starget_to_rport(scsi_target(sdev));
+	struct Scsi_Host	*shost = rport_to_shost(rport);
 	unsigned long		flags;
 	int			ready;
-	MPT_ADAPTER 		*ioc;
+	MPT_ADAPTER		*ioc;
 	int			loops = 40;	/* seconds */
 
-	hd = shost_priv(SCpnt->device->host);
+	hd = shost_priv(shost);
 	ioc = hd->ioc;
 	spin_lock_irqsave(shost->host_lock, flags);
 	while ((ready = fc_remote_port_chkready(rport) >> 16) == DID_IMM_RETRY
 	 || (loops > 0 && ioc->active == 0)) {
 		spin_unlock_irqrestore(shost->host_lock, flags);
 		dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-			"mptfc_block_error_handler.%d: %d:%llu, port status is "
-			"%x, active flag %d, deferring %s recovery.\n",
+			"mptfc_block_error_handler.%d: %s, port status is "
+			"%x, active flag %d, deferring recovery.\n",
 			ioc->name, ioc->sh->host_no,
-			SCpnt->device->id, SCpnt->device->lun,
-			ready, ioc->active, caller));
+			dev_name(&rport->dev), ready, ioc->active));
 		msleep(1000);
 		spin_lock_irqsave(shost->host_lock, flags);
 		loops --;
 	}
 	spin_unlock_irqrestore(shost->host_lock, flags);
 
-	if (ready == DID_NO_CONNECT || !SCpnt->device->hostdata
-	 || ioc->active == 0) {
+	if (ready == DID_NO_CONNECT || ioc->active == 0) {
 		dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-			"%s.%d: %d:%llu, failing recovery, "
-			"port state %x, active %d, vdevice %p.\n", caller,
+			"mpt_block_error_handler.%d: %s, failing recovery, "
+			"port state %x, active %d.\n",
 			ioc->name, ioc->sh->host_no,
-			SCpnt->device->id, SCpnt->device->lun, ready,
-			ioc->active, SCpnt->device->hostdata));
+			dev_name(&rport->dev), ready, ioc->active));
 		return FAILED;
 	}
-	dfcprintk (ioc, printk(MYIOC_s_DEBUG_FMT
-		"%s.%d: %d:%llu, executing recovery.\n", caller,
-		ioc->name, ioc->sh->host_no,
-		SCpnt->device->id, SCpnt->device->lun));
-	return (*func)(SCpnt);
+	return SUCCESS;
 }
 
 static int
 mptfc_abort(struct scsi_cmnd *SCpnt)
 {
-	return
-	    mptfc_block_error_handler(SCpnt, mptscsih_abort, __func__);
+	struct Scsi_Host *shost = SCpnt->device->host;
+	struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
+	MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
+	int rtn;
+
+	rtn = mptfc_block_error_handler(rport);
+	if (rtn == SUCCESS) {
+		dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
+			"%s.%d: %d:%llu, executing recovery.\n", __func__,
+			hd->ioc->name, shost->host_no,
+			SCpnt->device->id, SCpnt->device->lun));
+		rtn = mptscsih_abort(SCpnt);
+	}
+	return rtn;
 }
 
 static int
 mptfc_dev_reset(struct scsi_cmnd *SCpnt)
 {
-	return
-	    mptfc_block_error_handler(SCpnt, mptscsih_dev_reset, __func__);
+	struct Scsi_Host *shost = SCpnt->device->host;
+	struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
+	MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
+	int rtn;
+
+	rtn = mptfc_block_error_handler(rport);
+	if (rtn == SUCCESS) {
+		dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
+			"%s.%d: %d:%llu, executing recovery.\n", __func__,
+			hd->ioc->name, shost->host_no,
+			SCpnt->device->id, SCpnt->device->lun));
+		rtn = mptscsih_dev_reset(SCpnt);
+	}
+	return rtn;
 }
 
 static int
 mptfc_bus_reset(struct scsi_cmnd *SCpnt)
 {
-	return
-	    mptfc_block_error_handler(SCpnt, mptscsih_bus_reset, __func__);
+	struct Scsi_Host *shost = SCpnt->device->host;
+	struct fc_rport *rport = starget_to_rport(scsi_target(SCpnt->device));
+	MPT_SCSI_HOST __maybe_unused *hd = shost_priv(shost);
+	int rtn;
+
+	rtn = mptfc_block_error_handler(rport);
+	if (rtn == SUCCESS) {
+		dfcprintk (hd->ioc, printk(MYIOC_s_DEBUG_FMT
+			"%s.%d: %d:%llu, executing recovery.\n", __func__,
+			hd->ioc->name, shost->host_no,
+			SCpnt->device->id, SCpnt->device->lun));
+		rtn = mptscsih_bus_reset(SCpnt);
+	}
+	return rtn;
 }
 
 static void
-- 
2.29.2