This is a note to let you know that I've just added the patch titled net: usb: cdc_mbim: avoid altsetting toggling for Telit LN920 to the 4.19-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: net-usb-cdc_mbim-avoid-altsetting-toggling-for-telit.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 6c87c3b0a3999253c2455d1fdf3a018918d8f587 Author: Daniele Palmas <dnlplm@xxxxxxxxx> Date: Thu Sep 2 12:51:22 2021 +0200 net: usb: cdc_mbim: avoid altsetting toggling for Telit LN920 [ Upstream commit aabbdc67f3485b5db27ab4eba01e5fbf1ffea62c ] Add quirk CDC_MBIM_FLAG_AVOID_ALTSETTING_TOGGLE for Telit LN920 0x1061 composition in order to avoid bind error. Signed-off-by: Daniele Palmas <dnlplm@xxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c index 0362acd5cdca..cdd1b193fd4f 100644 --- a/drivers/net/usb/cdc_mbim.c +++ b/drivers/net/usb/cdc_mbim.c @@ -655,6 +655,11 @@ static const struct usb_device_id mbim_devs[] = { .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle, }, + /* Telit LN920 */ + { USB_DEVICE_AND_INTERFACE_INFO(0x1bc7, 0x1061, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), + .driver_info = (unsigned long)&cdc_mbim_info_avoid_altsetting_toggle, + }, + /* default entry */ { USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE), .driver_info = (unsigned long)&cdc_mbim_info_zlp,