new alloc_netdev requires a new parameter. All examples in the kernel i've seen just
use the constant NET_NAME_UNKNOWN.
origionally from: https://communities.vmware.com/message/2425189

diff -rupN vmnet-only/netif.c vmnet-only.new/netif.c
--- vmnet-only/netif.c	2013-11-06 00:40:52.000000000 -0500
+++ vmnet-only.new/netif.c	2014-10-09 17:29:12.361307961 -0400
@@ -149,7 +149,7 @@ VNetNetIf_Create(char *devName,  // IN:
    memcpy(deviceName, devName, sizeof deviceName);
    NULL_TERMINATE_STRING(deviceName);
 
-   dev = alloc_netdev(sizeof *netIf, deviceName, VNetNetIfSetup);
+   dev = alloc_netdev(sizeof *netIf, deviceName, NET_NAME_USER, VNetNetIfSetup);
    if (!dev) {
       retval = -ENOMEM;
       goto out;