cdc_ncm: add support FLAG_NOARP for Infineon modem platform

Infineon(now Intel) HSPA Modem platform NCM cannot support ARP.
we can define a new common structure wwan_noarp_info.
Then more similiar NO ARP devices can be handled easily

Signed-off-by: Wei Shuai <cpuwolf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 2c4b41ffddb6ac9a127921e31d7b0ed9407aa153..f94711caa08af2485c08eb56cd0869da3c0c8ca2 100644 (file)
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1183,6 +1183,20 @@ static const struct driver_info wwan_info = {
        .tx_fixup = cdc_ncm_tx_fixup,
 };
 
+/* Same as wwan_info, but with FLAG_NOARP  */
+static const struct driver_info wwan_noarp_info = {
+       .description = "Mobile Broadband Network Device (NO ARP)",
+       .flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET
+                       | FLAG_WWAN | FLAG_NOARP,
+       .bind = cdc_ncm_bind,
+       .unbind = cdc_ncm_unbind,
+       .check_connect = cdc_ncm_check_connect,
+       .manage_power = usbnet_manage_power,
+       .status = cdc_ncm_status,
+       .rx_fixup = cdc_ncm_rx_fixup,
+       .tx_fixup = cdc_ncm_tx_fixup,
+};
+
 static const struct usb_device_id cdc_devs[] = {
        /* Ericsson MBM devices like F5521gw */
        { .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
@@ -1222,6 +1236,13 @@ static const struct usb_device_id cdc_devs[] = {
          .driver_info = (unsigned long)&wwan_info,
        },
 
+       /* Infineon(now Intel) HSPA Modem platform */
+       { USB_DEVICE_AND_INTERFACE_INFO(0x1519, 0x0443,
+               USB_CLASS_COMM,
+               USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
+         .driver_info = (unsigned long)&wwan_noarp_info,
+       },
+
        /* Generic CDC-NCM devices */
        { USB_INTERFACE_INFO(USB_CLASS_COMM,
                USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),