libata: Add Seagate STT20000A to DMA blacklist.

http://bugzilla.kernel.org/show_bug.cgi?id=1044 points out an
additional hard disk that doesn't handle DMA transfers correctly.
This patch is the libata variant of the earlier patch to drivers/ide/

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index d3ea7f55283c..94ec0f524acf 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3771,6 +3771,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
         { "ATAPI CD-ROM DRIVE 40X MAXIMUM",NULL,ATA_HORKAGE_NODMA },
         { "_NEC DV5800A",       NULL,           ATA_HORKAGE_NODMA },
         { "SAMSUNG CD-ROM SN-124","N001",       ATA_HORKAGE_NODMA },
+        { "Seagate STT20000A", NULL,            ATA_HORKAGE_NODMA },
 
         /* Weird ATAPI devices */
         { "TORiSAN DVD-ROM DRD-N216", NULL,     ATA_HORKAGE_MAX_SEC_128 |