RE: [PATCH 04/17] hpsa: suppress excessively chatty error messages

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| -----Original Message-----
| From: linux-scsi-owner@xxxxxxxxxxxxxxx [mailto:linux-scsi-
| owner@xxxxxxxxxxxxxxx] On Behalf Of Stephen M. Cameron
| Sent: Friday, April 20, 2012 8:07 AM
| To: james.bottomley@xxxxxxxxxxxxxxxxxxxxx
| Cc: linux-scsi@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; Gates, Matt;
| stephenmcameron@xxxxxxxxx; thenzl@xxxxxxxxxx; akpm@xxxxxxxxxxxxxxxxxxxx;
| mikem@xxxxxxxxxxxxxxxxxx
| Subject: [PATCH 04/17] hpsa: suppress excessively chatty error messages
| 
| From: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx>
| 
| Default behavior for any CHECK CONDITION excepting a few special cases is
| to print out certain parts of the sense buffer and the CDB.  Default
| behavior should be to print nothing and let the upper layers or
| applications decide what to do about these.  The same information is
| already available by setting the appropriate bits of the
| scsi_logging_level kernel parameter or via
| /proc/sys/dev/scsi/logging_level.

Makes sense.

| 
| Signed-off-by: Stephen M. Cameron <scameron@xxxxxxxxxxxxxxxxxx>
| ---
|  drivers/scsi/hpsa.c |    2 +-
|  1 files changed, 1 insertions(+), 1 deletions(-)
| 
| diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index
| 906672b..fcb9fb2 100644
| --- a/drivers/scsi/hpsa.c
| +++ b/drivers/scsi/hpsa.c
| @@ -1193,7 +1193,7 @@ static void complete_scsi_command(struct CommandList
| *cp)
|  				break;
|  			}
|  			/* Must be some other type of check condition */
| -			dev_warn(&h->pdev->dev, "cp %p has check condition: "
| +			dev_dbg(&h->pdev->dev, "cp %p has check condition: "
|  					"unknown type: "
|  					"Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "
|  					"Returning result: 0x%x, "
| 

Few lines further down in the same function, there is another dev_warn() for SCSI errors.

       /* Problem was not a check condition
         * Pass it up to the upper layers...
         */
        if (ei->ScsiStatus) {
            dev_warn(&h->pdev->dev, "cp %p has status 0x%x "
                "Sense: 0x%x, ASC: 0x%x, ASCQ: 0x%x, "


I am wondering whether it make sense to make the same change here as well as. This will suppress logging for other SCSI status, for example BUSY, TASK SET FULL, etc.

Sunny 

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