linux-kernel - [PATCH 3.19.y-ckt 042/170] aic7xxx: Fix queue depth handling

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Date:	Fri,  1 Apr 2016 17:52:08 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Alan Cox <alan@...ux.intel.com>,
	"Martin K . Petersen" <martin.petersen@...cle.com>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.19.y-ckt 042/170] aic7xxx: Fix queue depth handling

3.19.8-ckt18 -stable review patch.  If anyone has any objections, please let me know.

---8<------------------------------------------------------------

From: Alan <gnomes@...rguk.ukuu.org.uk>

commit 5a51a7abca133860a6f4429655a9eda3c4afde32 upstream.

We were setting the queue depth correctly, then setting it back to
two. If you hit this as a bisection point then please send me an email
as it would imply we've been hiding other bugs with this one.

Signed-off-by: Alan Cox <alan@...ux.intel.com>
Reviewed-by: Hannes Reinicke <hare@...e.de>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/scsi/aic7xxx/aic7xxx_osm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c
index 8836011..35c67bb 100644
--- a/drivers/scsi/aic7xxx/aic7xxx_osm.c
+++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c
@@ -1338,6 +1338,7 @@ ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
 	case AHC_DEV_Q_TAGGED:
 		scsi_change_queue_depth(sdev,
 				dev->openings + dev->active);
+		break;
 	default:
 		/*
 		 * We allow the OS to queue 2 untagged transactions to
-- 
2.7.4