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[Zesty,44/44] scsi: cxlflash: Update debug prints in reset handlers

Message ID 20170707160558.2383-45-victora@br.ibm.com
State New
Headers show

Commit Message

Victor Aoqui July 7, 2017, 4:05 p.m. UTC 
From: "Matthew R. Ochs" <mrochs@linux.vnet.ibm.com>

BugLink: http://bugs.launchpad.net/bugs/1702521

The device and host reset handler contain debug prints to help identify
the entities being reset. Today these reset handlers are based on a SCSI
EH design that uses a SCSI command reference as a means of identifying
the target entity. As such, the debug trace includes the SCSI command
pointer and associated CDB. This is not necessary as the SCSI command is
simply the messenger in these scenarios.

Refactor the debug prints in the host and reset handlers to only present
information that is applicable given the function scope.

Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 5a4d9d7790422c4a92d8ca52e37c1e2b45d42c27)
Signed-off-by: Victor Aoqui <victora@linux.vnet.ibm.com>
---
 drivers/scsi/cxlflash/main.c | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)
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Patch

diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index 7054e11f732a..077f62e208aa 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -2435,14 +2435,8 @@  static int cxlflash_eh_device_reset_handler(struct scsi_cmnd *scp)
 	struct device *dev = &cfg->dev->dev;
 	int rcr = 0;
 
-	dev_dbg(dev, "%s: (scp=%p) %d/%d/%d/%llu "
-		"cdb=(%08x-%08x-%08x-%08x)\n", __func__, scp, host->host_no,
-		sdev->channel, sdev->id, sdev->lun,
-		get_unaligned_be32(&((u32 *)scp->cmnd)[0]),
-		get_unaligned_be32(&((u32 *)scp->cmnd)[1]),
-		get_unaligned_be32(&((u32 *)scp->cmnd)[2]),
-		get_unaligned_be32(&((u32 *)scp->cmnd)[3]));
-
+	dev_dbg(dev, "%s: %d/%d/%d/%llu\n", __func__,
+		host->host_no, sdev->channel, sdev->id, sdev->lun);
 retry:
 	switch (cfg->state) {
 	case STATE_NORMAL:
@@ -2483,13 +2477,7 @@  static int cxlflash_eh_host_reset_handler(struct scsi_cmnd *scp)
 	struct cxlflash_cfg *cfg = shost_priv(host);
 	struct device *dev = &cfg->dev->dev;
 
-	dev_dbg(dev, "%s: (scp=%p) %d/%d/%d/%llu "
-		"cdb=(%08x-%08x-%08x-%08x)\n", __func__, scp, host->host_no,
-		scp->device->channel, scp->device->id, scp->device->lun,
-		get_unaligned_be32(&((u32 *)scp->cmnd)[0]),
-		get_unaligned_be32(&((u32 *)scp->cmnd)[1]),
-		get_unaligned_be32(&((u32 *)scp->cmnd)[2]),
-		get_unaligned_be32(&((u32 *)scp->cmnd)[3]));
+	dev_dbg(dev, "%s: %d\n", __func__, host->host_no);
 
 	switch (cfg->state) {
 	case STATE_NORMAL: