From: Arne Fitzenreiter <arne_f@ipfire.org>
Date: Wed, 15 Jul 2015 11:54:37 +0000 (+0200)
Subject: libata: force disable trim for SuperSSpeed S238
X-Git-Tag: v3.4.111~80
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8210f1587a2854853e5f050d63391c07783e930b;p=thirdparty%2Fkernel%2Fstable.git

libata: force disable trim for SuperSSpeed S238

commit cda57b1b05cf7b8b99ab4b732bea0b05b6c015cc upstream.

This device loses blocks, often the partition table area, on trim.
Disable TRIM.
http://pcengines.ch/msata16a.htm

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Zefan Li <lizefan@huawei.com>
---

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index b5d532f1e431c..5a3b08bf651fe 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4144,6 +4144,9 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "WD My Book",			NULL,	ATA_HORKAGE_1_5_GBPS, },
 	{ "Seagate FreeAgent GoFlex",	NULL,	ATA_HORKAGE_1_5_GBPS, },
 
+	/* devices that don't properly handle TRIM commands */
+	{ "SuperSSpeed S238*",		NULL,	ATA_HORKAGE_NOTRIM, },
+
 	/*
 	 * Devices which choke on SETXFER.  Applies only if both the
 	 * device and controller are SATA.