This is a note to let you know that I've just added the patch titled USB: Add LPM quirk for Lenovo ThinkPad USB-C Dock Gen2 Ethernet to the 5.12-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: usb-add-lpm-quirk-for-lenovo-thinkpad-usb-c-dock-gen2-ethernet.patch and it can be found in the queue-5.12 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 8f23fe35ff1e5491b4d279323a8209a31f03ae65 Mon Sep 17 00:00:00 2001 From: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> Date: Mon, 12 Apr 2021 21:54:53 +0800 Subject: USB: Add LPM quirk for Lenovo ThinkPad USB-C Dock Gen2 Ethernet From: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> commit 8f23fe35ff1e5491b4d279323a8209a31f03ae65 upstream. This is another branded 8153 device that doesn't work well with LPM enabled: [ 400.597506] r8152 5-1.1:1.0 enx482ae3a2a6f0: Tx status -71 So disable LPM to resolve the issue. Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx> BugLink: https://bugs.launchpad.net/bugs/1922651 Link: https://lore.kernel.org/r/20210412135455.791971-1-kai.heng.feng@xxxxxxxxxxxxx Cc: stable <stable@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -438,6 +438,9 @@ static const struct usb_device_id usb_qu { USB_DEVICE(0x17ef, 0xa012), .driver_info = USB_QUIRK_DISCONNECT_SUSPEND }, + /* Lenovo ThinkPad USB-C Dock Gen2 Ethernet (RTL8153 GigE) */ + { USB_DEVICE(0x17ef, 0xa387), .driver_info = USB_QUIRK_NO_LPM }, + /* BUILDWIN Photo Frame */ { USB_DEVICE(0x1908, 0x1315), .driver_info = USB_QUIRK_HONOR_BNUMINTERFACES }, Patches currently in stable-queue which might be from kai.heng.feng@xxxxxxxxxxxxx are queue-5.12/usb-add-lpm-quirk-for-lenovo-thinkpad-usb-c-dock-gen2-ethernet.patch