From: Martin K. Petersen <martin.petersen@oracle.com>
Date: Thu, 19 Apr 2018 02:54:59 +0000 (-0400)
Subject: scsi: mptsas: Disable WRITE SAME
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=94e5395d2403c8bc2504a7cbe4c4caaacb7b8b84;p=openwrt%2Fstaging%2Fblogic.git

scsi: mptsas: Disable WRITE SAME

First generation MPT Fusion controllers can not translate WRITE SAME
when the attached device is a SATA drive. Disable WRITE SAME support.

Reported-by: Nikola Ciprich <nikola.ciprich@linuxbox.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---

diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 231f3a1e27bf..86503f60468f 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -1994,6 +1994,7 @@ static struct scsi_host_template mptsas_driver_template = {
 	.cmd_per_lun			= 7,
 	.use_clustering			= ENABLE_CLUSTERING,
 	.shost_attrs			= mptscsih_host_attrs,
+	.no_write_same			= 1,
 };
 
 static int mptsas_get_linkerrors(struct sas_phy *phy)