From: Hongling Zeng <zenghongling@kylinos.cn>
Date: Fri, 23 Sep 2022 02:46:35 +0000 (+0800)
Subject: uas: ignore UAS for Thinkplus chips
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5361ed6ad98c7b7dc7f45b5f4866757d4f01d885;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

uas: ignore UAS for Thinkplus chips

commit 0fb9703a3eade0bb84c635705d9c795345e55053 upstream.

The UAS mode of Thinkplus(0x17ef, 0x3899) is reported to influence
performance and trigger kernel panic on several platforms with the
following error message:

[   39.702439] xhci_hcd 0000:0c:00.3: ERROR Transfer event for disabled
               endpoint or incorrect stream ring
[   39.702442] xhci_hcd 0000:0c:00.3: @000000026c61f810 00000000 00000000
               1b000000 05038000

[  720.545894][13] Workqueue: usb_hub_wq hub_event
[  720.550971][13]  ffff88026c143c38 0000000000016300 ffff8802755bb900 ffff880
                    26cb80000
[  720.559673][13]  ffff88026c144000 ffff88026ca88100 0000000000000000 ffff880
                    26cb80000
[  720.568374][13]  ffff88026cb80000 ffff88026c143c50 ffffffff8186ae25 ffff880
                    26ca880f8
[  720.577076][13] Call Trace:
[  720.580201][13]  [<ffffffff8186ae25>] schedule+0x35/0x80
[  720.586137][13]  [<ffffffff8186b0ce>] schedule_preempt_disabled+0xe/0x10
[  720.593623][13]  [<ffffffff8186cb94>] __mutex_lock_slowpath+0x164/0x1e0
[  720.601012][13]  [<ffffffff8186cc3f>] mutex_lock+0x2f/0x40
[  720.607141][13]  [<ffffffff8162b8e9>] usb_disconnect+0x59/0x290

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

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Hongling Zeng <zenghongling@kylinos.cn>
Link: https://lore.kernel.org/r/1663902249837086.19.seg@mailgw
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
index 08d61eac7ab5..414ef2533e27 100644
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -201,6 +201,13 @@ UNUSUAL_DEV(0x154b, 0xf00d, 0x0000, 0x9999,
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_NO_ATA_1X),
 
+/* Reported-by: Hongling Zeng <zenghongling@kylinos.cn> */
+UNUSUAL_DEV(0x17ef, 0x3899, 0x0000, 0x9999,
+		"Thinkplus",
+		"External HDD",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_IGNORE_UAS),
+
 /* Reported-by: Hans de Goede <hdegoede@redhat.com> */
 UNUSUAL_DEV(0x2109, 0x0711, 0x0000, 0x9999,
 		"VIA",