linux-kernel - [PATCH 3.18 19/26] uas: Always apply US_FL_NO_ATA

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Date:   Thu,  7 Dec 2017 13:48:32 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Hans de Goede <hdegoede@...hat.com>
Subject: [PATCH 3.18 19/26] uas: Always apply US_FL_NO_ATA_1X quirk to Seagate devices

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

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

From: Hans de Goede <hdegoede@...hat.com>

commit 7fee72d5e8f1e7b8d8212e28291b1a0243ecf2f1 upstream.

We've been adding this as a quirk on a per device basis hoping that
newer disk enclosures would do better, but that has not happened,
so simply apply this quirk to all Seagate devices.

Signed-off-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/usb/storage/uas-detect.h |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/storage/uas-detect.h
+++ b/drivers/usb/storage/uas-detect.h
@@ -88,6 +88,10 @@ static int uas_use_uas_driver(struct usb
 		}
 	}
 
+	/* All Seagate disk enclosures have broken ATA pass-through support */
+	if (le16_to_cpu(udev->descriptor.idVendor) == 0x0bc2)
+		flags |= US_FL_NO_ATA_1X;
+
 	usb_stor_adjust_quirks(udev, &flags);
 
 	if (flags & US_FL_IGNORE_UAS) {