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

USB: NO_LPM quirk Lenovo USB-C to Ethernet Adapher(RTL8153-04)

to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From 0ad3bd562bb91853b9f42bda145b5db6255aee90 Mon Sep 17 00:00:00 2001

From: Jimmy Wang wangjm221@gmail.com Date: Tue, 14 Dec 2021 09:26:50 +0800 Subject: USB: NO_LPM quirk Lenovo USB-C to Ethernet Adapher(RTL8153-04)

This device doesn't work well with LPM, losing connectivity intermittently. Disable LPM to resolve the issue.

Reviewed-by: markpearson@lenovo.com Signed-off-by: Jimmy Wang wangjm221@gmail.com Cc: stable stable@vger.kernel.org Link: https://lore.kernel.org/r/20211214012652.4898-1-wangjm221@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c index 019351c0b52c..d3c14b5ed4a1 100644 --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -434,6 +434,9 @@ static const struct usb_device_id usb_quirk_list[] = { { USB_DEVICE(0x1532, 0x0116), .driver_info = USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL },

+ /* Lenovo USB-C to Ethernet Adapter RTL8153-04 */ + { USB_DEVICE(0x17ef, 0x720c), .driver_info = USB_QUIRK_NO_LPM }, + /* Lenovo Powered USB-C Travel Hub (4X90S92381, RTL8153 GigE) */ { USB_DEVICE(0x17ef, 0x721e), .driver_info = USB_QUIRK_NO_LPM },