This is a note to let you know that I've just added the patch titled Revert "net: usb: r8152: Add MAC passthrough support for more Lenovo Docks" to the 5.15-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: revert-net-usb-r8152-add-mac-passthrough-support-for-more-lenovo-docks.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 00fcf8c7dd564c44448ff6a39728d2ca0c8efbd8 Mon Sep 17 00:00:00 2001 From: Aaron Ma <aaron.ma@xxxxxxxxxxxxx> Date: Wed, 5 Jan 2022 23:51:02 +0800 Subject: Revert "net: usb: r8152: Add MAC passthrough support for more Lenovo Docks" From: Aaron Ma <aaron.ma@xxxxxxxxxxxxx> commit 00fcf8c7dd564c44448ff6a39728d2ca0c8efbd8 upstream. This reverts commit f77b83b5bbab53d2be339184838b19ed2c62c0a5. This change breaks multiple usb to ethernet dongles attached on Lenovo USB hub. Fixes: f77b83b5bbab ("net: usb: r8152: Add MAC passthrough support for more Lenovo Docks") Signed-off-by: Aaron Ma <aaron.ma@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220105155102.8557-1-aaron.ma@xxxxxxxxxxxxx Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/usb/r8152.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -9638,9 +9638,12 @@ static int rtl8152_probe(struct usb_inte netdev->hw_features &= ~NETIF_F_RXCSUM; } - if (udev->parent && - le16_to_cpu(udev->parent->descriptor.idVendor) == VENDOR_ID_LENOVO) { - tp->lenovo_macpassthru = 1; + if (le16_to_cpu(udev->descriptor.idVendor) == VENDOR_ID_LENOVO) { + switch (le16_to_cpu(udev->descriptor.idProduct)) { + case DEVICE_ID_THINKPAD_THUNDERBOLT3_DOCK_GEN2: + case DEVICE_ID_THINKPAD_USB_C_DOCK_GEN2: + tp->lenovo_macpassthru = 1; + } } if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x3011 && udev->serial && Patches currently in stable-queue which might be from aaron.ma@xxxxxxxxxxxxx are queue-5.15/revert-net-usb-r8152-add-mac-passthrough-support-for-more-lenovo-docks.patch