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>
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 365b2b6..5f19dfb 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -322,7 +322,8 @@
 	else
 		strcpy(name, "ip6gre%d");
 
-	dev = alloc_netdev(sizeof(*t), name, ip6gre_tunnel_setup);
+	dev = alloc_netdev(sizeof(*t), name, NET_NAME_UNKNOWN,
+			   ip6gre_tunnel_setup);
 	if (!dev)
 		return NULL;
 
@@ -1326,7 +1327,8 @@
 	int err;
 
 	ign->fb_tunnel_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6gre0",
-					   ip6gre_tunnel_setup);
+					  NET_NAME_UNKNOWN,
+					  ip6gre_tunnel_setup);
 	if (!ign->fb_tunnel_dev) {
 		err = -ENOMEM;
 		goto err_alloc_dev;