This is a note to let you know that I've just added the patch titled

uas: ignore UAS for Norelsys NS1068(X) chips

to the 3.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: uas-ignore-uas-for-norelsys-ns1068-x-chips.patch and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 928afc85270753657b5543e052cc270c279a3fe9 Mon Sep 17 00:00:00 2001

From: Icenowy Zheng icenowy@aosc.io Date: Sat, 6 Jan 2018 00:56:44 +0800 Subject: uas: ignore UAS for Norelsys NS1068(X) chips

From: Icenowy Zheng icenowy@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 icenowy@aosc.io Acked-by: Hans de Goede hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@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 @@ -153,6 +153,13 @@ UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x99 USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NO_ATA_1X),

+/* Reported-by: Icenowy Zheng icenowy@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 javhera@gmx.com */ UNUSUAL_DEV(0x357d, 0x7788, 0x0000, 0x9999, "JMicron",

Patches currently in stable-queue which might be from icenowy@aosc.io are

queue-3.18/uas-ignore-uas-for-norelsys-ns1068-x-chips.patch