linux-kernel - [PATCH 3.8 071/166] firewire: sbp2: bring back WRITE SAME support

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Message-Id: <1389822780-4729-72-git-send-email-kamal@canonical.com>
Date:	Wed, 15 Jan 2014 13:51:25 -0800
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Stefan Richter <stefanr@...6.in-berlin.de>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.8 071/166] firewire: sbp2: bring back WRITE SAME support

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

------------------

From: Stefan Richter <stefanr@...6.in-berlin.de>

commit ce027ed98fd176710fb14be9d6015697b62436f0 upstream.

Commit 54b2b50c20a6 "[SCSI] Disable WRITE SAME for RAID and virtual
host adapter drivers" disabled WRITE SAME support for all SBP-2 attached
targets.  But as described in the changelog of commit b0ea5f19d3d8
"firewire: sbp2: allow WRITE SAME and REPORT SUPPORTED OPERATION CODES",
it is not required to blacklist WRITE SAME.

Bring the feature back by reverting the sbp2.c hunk of commit 54b2b50c20a6.

Signed-off-by: Stefan Richter <stefanr@...6.in-berlin.de>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/firewire/sbp2.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 4882873..1162d6b 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -1628,7 +1628,6 @@ static struct scsi_host_template scsi_driver_template = {
 	.cmd_per_lun		= 1,
 	.can_queue		= 1,
 	.sdev_attrs		= sbp2_scsi_sysfs_attrs,
-	.no_write_same		= 1,
 };
 
 MODULE_AUTHOR("Kristian Hoegsberg <krh@...planet.net>");
-- 
1.8.3.2

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