linux-kernel - [PATCH 3.16 194/254] uas: ignore UAS for Norelsys NS1068(X) chips

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Date:   Wed, 28 Feb 2018 15:20:18 +0000
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Icenowy Zheng" <icenowy@...c.io>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Hans de Goede" <hdegoede@...hat.com>
Subject: [PATCH 3.16 194/254] uas: ignore UAS for Norelsys NS1068(X) chips

3.16.55-rc1 review patch.  If anyone has any objections, please let me know.

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

From: Icenowy Zheng <icenowy@...c.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 <icenowy@...c.io>
Acked-by: Hans de Goede <hdegoede@...hat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 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
@@ -145,6 +145,13 @@ UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x99
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_NO_ATA_1X),
 
+/* Reported-by: Icenowy Zheng <icenowy@...c.io> */
+UNUSUAL_DEV(0x2537, 0x1068, 0x0000, 0x9999,
+		"Norelsys",
+		"NS1068X",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_IGNORE_UAS),
+
 /* Reported-by: Takeo Nakayama <javhera@....com> */
 UNUSUAL_DEV(0x357d, 0x7788, 0x0000, 0x9999,
 		"JMicron",