--- zzzz-none-000/linux-3.10.107/drivers/net/usb/rndis_host.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/net/usb/rndis_host.c	2021-02-04 17:41:59.000000000 +0000
@@ -13,11 +13,9 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/module.h>
-#include <linux/init.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/ethtool.h>
@@ -383,6 +381,21 @@
 		net->mtu = dev->hard_mtu - net->hard_header_len;
 	}
 
+/* == 20160222 AVM/VGJ - CHANGESET: FIX for buggy ZTE Modems: Adjust Rx Buffer Size == */
+#if 1
+	if (tmp > dev->rx_urb_size) {
+		dev->rx_urb_size = 4096;
+		while (tmp > dev->rx_urb_size) {
+			dev->rx_urb_size += 4096;
+			if (dev->rx_urb_size >= (4*4096)) {
+				break;
+			}
+		}
+		dev_warn(&intf->dev, 
+			"dev needs rx_urb_size %d, adjusting to %d\n", tmp, dev->rx_urb_size);
+	}
+#endif
+
 	/* REVISIT:  peripheral "alignment" request is ignored ... */
 	dev_dbg(&intf->dev,
 		"hard mtu %u (%u from dev), rx buflen %Zu, align %d\n",