1 files changed, 29 insertions, 12 deletions

diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index b3fe0de40469..c924ea2bce07 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -99,9 +99,7 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
                  */
                 buf = dev->udev->actconfig->extra;
                 len = dev->udev->actconfig->extralen;
-                if (len)
-                        dev_dbg(&intf->dev,
-                                "CDC descriptors on config\n");
+                dev_dbg(&intf->dev, "CDC descriptors on config\n");
         }
 
         /* Maybe CDC descriptors are after the endpoint?  This bug has
@@ -380,7 +378,7 @@ static void dumpspeed(struct usbnet *dev, __le32 *speeds)
                    __le32_to_cpu(speeds[1]) / 1000);
 }
 
-static void cdc_status(struct usbnet *dev, struct urb *urb)
+void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
 {
         struct usb_cdc_notification     *event;
 
@@ -420,8 +418,9 @@ static void cdc_status(struct usbnet *dev, struct urb *urb)
                 break;
         }
 }
+EXPORT_SYMBOL_GPL(usbnet_cdc_status);
 
-static int cdc_bind(struct usbnet *dev, struct usb_interface *intf)
+int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 {
         int                             status;
         struct cdc_state                *info = (void *) &dev->data;
@@ -443,6 +442,7 @@ static int cdc_bind(struct usbnet *dev, struct usb_interface *intf)
          */
         return 0;
 }
+EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
 
 static int cdc_manage_power(struct usbnet *dev, int on)
 {
@@ -452,25 +452,26 @@ static int cdc_manage_power(struct usbnet *dev, int on)
 
 static const struct driver_info cdc_info = {
         .description =  "CDC Ethernet Device",
-        .flags =        FLAG_ETHER,
+        .flags =        FLAG_ETHER | FLAG_POINTTOPOINT,
         // .check_connect = cdc_check_connect,
-        .bind =         cdc_bind,
+        .bind =         usbnet_cdc_bind,
         .unbind =       usbnet_cdc_unbind,
-        .status =       cdc_status,
+        .status =       usbnet_cdc_status,
         .manage_power = cdc_manage_power,
 };
 
-static const struct driver_info mbm_info = {
+static const struct driver_info wwan_info = {
         .description =  "Mobile Broadband Network Device",
         .flags =        FLAG_WWAN,
-        .bind =         cdc_bind,
+        .bind =         usbnet_cdc_bind,
         .unbind =       usbnet_cdc_unbind,
-        .status =       cdc_status,
+        .status =       usbnet_cdc_status,
         .manage_power = cdc_manage_power,
 };
 
 /*-------------------------------------------------------------------------*/
 
+#define HUAWEI_VENDOR_ID        0x12D1
 
 static const struct usb_device_id       products [] = {
 /*
@@ -562,6 +563,13 @@ static const struct usb_device_id	products [] = {
         .driver_info            = 0,
 },
 
+/* LG Electronics VL600 wants additional headers on every frame */
+{
+        USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
+                        USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+        .driver_info = (unsigned long)&wwan_info,
+},
+
 /*
  * WHITELIST!!!
  *
@@ -580,8 +588,17 @@ static const struct usb_device_id	products [] = {
 }, {
         USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
                         USB_CDC_PROTO_NONE),
-        .driver_info = (unsigned long)&mbm_info,
+        .driver_info = (unsigned long)&wwan_info,
 
+}, {
+        /* Various Huawei modems with a network port like the UMG1831 */
+        .match_flags    =   USB_DEVICE_ID_MATCH_VENDOR
+                 | USB_DEVICE_ID_MATCH_INT_INFO,
+        .idVendor               = HUAWEI_VENDOR_ID,
+        .bInterfaceClass        = USB_CLASS_COMM,
+        .bInterfaceSubClass     = USB_CDC_SUBCLASS_ETHERNET,
+        .bInterfaceProtocol     = 255,
+        .driver_info = (unsigned long)&wwan_info,
 },
         { },            // END
 };