net: set name_assign_type in alloc_netdev()

Extend alloc_netdev{,_mq{,s}}() to take name_assign_type as argument, and convert
all users to pass NET_NAME_UNKNOWN.

Coccinelle patch:

@@
expression sizeof_priv, name, setup, txqs, rxqs, count;
@@

(
-alloc_netdev_mqs(sizeof_priv, name, setup, txqs, rxqs)
+alloc_netdev_mqs(sizeof_priv, name, NET_NAME_UNKNOWN, setup, txqs, rxqs)
|
-alloc_netdev_mq(sizeof_priv, name, setup, count)
+alloc_netdev_mq(sizeof_priv, name, NET_NAME_UNKNOWN, setup, count)
|
-alloc_netdev(sizeof_priv, name, setup)
+alloc_netdev(sizeof_priv, name, NET_NAME_UNKNOWN, setup)
)

v9: move comments here from the wrong commit

Signed-off-by: Tom Gundersen <teg@jklm.no>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/sit.c

@@ -250,7 +250,8 @@ static struct ip_tunnel *ipip6_tunnel_locate(struct net *net,
 	else
 		strcpy(name, "sit%d");
 
-	dev = alloc_netdev(sizeof(*t), name, ipip6_tunnel_setup);
+	dev = alloc_netdev(sizeof(*t), name, NET_NAME_UNKNOWN,
+			   ipip6_tunnel_setup);
 	if (dev == NULL)
 		return NULL;
 
@@ -1729,6 +1730,7 @@ static int __net_init sit_init_net(struct net *net)
 	sitn->tunnels[3] = sitn->tunnels_r_l;
 
 	sitn->fb_tunnel_dev = alloc_netdev(sizeof(struct ip_tunnel), "sit0",
+					   NET_NAME_UNKNOWN,
 					   ipip6_tunnel_setup);
 	if (!sitn->fb_tunnel_dev) {
 		err = -ENOMEM;