usbnet: Use wwan%d interface name for mobile broadband devices

Add support for usbnet based devices like CDC-Ether to indicate that they
are actually mobile broadband devices. In that case use wwan%d as default
interface name.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 17 insertions, 6 deletions

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 4a6aff579403..71e65fc10e6f 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -420,6 +420,14 @@ static const struct driver_info	cdc_info = {
         .status =       cdc_status,
 };
 
+static const struct driver_info mbm_info = {
+        .description =  "Mobile Broadband Network Device",
+        .flags =        FLAG_WWAN,
+        .bind =         cdc_bind,
+        .unbind =       usbnet_cdc_unbind,
+        .status =       cdc_status,
+};
+
 /*-------------------------------------------------------------------------*/
 
 
@@ -532,32 +540,32 @@ static const struct usb_device_id	products [] = {
         /* Ericsson F3507g */
         USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1900, USB_CLASS_COMM,
                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
-        .driver_info = (unsigned long) &cdc_info,
+        .driver_info = (unsigned long) &mbm_info,
 }, {
         /* Ericsson F3507g ver. 2 */
         USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1902, USB_CLASS_COMM,
                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
-        .driver_info = (unsigned long) &cdc_info,
+        .driver_info = (unsigned long) &mbm_info,
 }, {
         /* Ericsson F3607gw */
         USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1904, USB_CLASS_COMM,
                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
-        .driver_info = (unsigned long) &cdc_info,
+        .driver_info = (unsigned long) &mbm_info,
 }, {
         /* Ericsson F3307 */
         USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1906, USB_CLASS_COMM,
                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
-        .driver_info = (unsigned long) &cdc_info,
+        .driver_info = (unsigned long) &mbm_info,
 }, {
         /* Toshiba F3507g */
         USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM,
                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
-        .driver_info = (unsigned long) &cdc_info,
+        .driver_info = (unsigned long) &mbm_info,
 }, {
         /* Dell F3507g */
         USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x8147, USB_CLASS_COMM,
                         USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
-        .driver_info = (unsigned long) &cdc_info,
+        .driver_info = (unsigned long) &mbm_info,
 },
         { },            // END
 };
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index ca5ca5ae061d..8124cf16259f 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -1295,6 +1295,9 @@ usbnet_probe (struct usb_interface *udev, const struct usb_device_id *prod)
                 /* WLAN devices should always be named "wlan%d" */
                 if ((dev->driver_info->flags & FLAG_WLAN) != 0)
                         strcpy(net->name, "wlan%d");
+                /* WWAN devices should always be named "wwan%d" */
+                if ((dev->driver_info->flags & FLAG_WWAN) != 0)
+                        strcpy(net->name, "wwan%d");
 
                 /* maybe the remote can't receive an Ethernet MTU */
                 if (net->mtu > (dev->hard_mtu - net->hard_header_len))