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

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

From: Icenowy Zheng <icen...@aosc.io>

commit 928afc85270753657b5543e052cc270c279a3fe9 upstream.

The UAS mode of Norelsys NS1068(X) is reported to fail to work on
several platforms with the following error message:

xhci-hcd xhci-hcd.0.auto: ERROR Transfer event for unknown stream ring slot 1 
ep 8
xhci-hcd xhci-hcd.0.auto: @00000000bf04a400 00000000 00000000 1b000000 01098001

And when trying to mount a partition on the disk the disk will
disconnect from the USB controller, then after re-connecting the device
will be offlined and not working at all.

Falling back to USB mass storage can solve this problem, so ignore UAS
function of this chip.

Signed-off-by: Icenowy Zheng <icen...@aosc.io>
Acked-by: Hans de Goede <hdego...@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 drivers/usb/storage/unusual_uas.h |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -156,6 +156,13 @@ UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x99
                USB_SC_DEVICE, USB_PR_DEVICE, NULL,
                US_FL_NO_ATA_1X),
 
+/* Reported-by: Icenowy Zheng <icen...@aosc.io> */
+UNUSUAL_DEV(0x2537, 0x1068, 0x0000, 0x9999,
+               "Norelsys",
+               "NS1068X",
+               USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+               US_FL_IGNORE_UAS),
+
 /* Reported-by: Takeo Nakayama <javh...@gmx.com> */
 UNUSUAL_DEV(0x357d, 0x7788, 0x0000, 0x9999,
                "JMicron",


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