net: cdc_ncm: tag Huawei devices (e.g. E5331) with FLAG_WWAN

Tag all Huawei NCM devices as WWAN modems, as we don't know of any which
are not.  This is necessary for userspace clients to know that the device
requires further setup on e.g. an AT-capable serial ports before
connectivity is available.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 4a8c25a22294..61b74a2b89ac 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1213,6 +1213,14 @@ static const struct usb_device_id cdc_devs[] = {
           .driver_info = (unsigned long) &wwan_info,
         },
 
+        /* tag Huawei devices as wwan */
+        { USB_VENDOR_AND_INTERFACE_INFO(0x12d1,
+                                        USB_CLASS_COMM,
+                                        USB_CDC_SUBCLASS_NCM,
+                                        USB_CDC_PROTO_NONE),
+          .driver_info = (unsigned long)&wwan_info,
+        },
+
         /* Huawei NCM devices disguised as vendor specific */
         { USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16),
           .driver_info = (unsigned long)&wwan_info,