After ipgre_newlink()/geneve_configure() call, the netdev is registered.
Fixes: 7e059158d5 ("vxlan, gre, geneve: Set a large MTU on ovs-created tunnel devices")
CC: David Wragg <[email protected]>
Signed-off-by: Nicolas Dichtel <[email protected]>
Signed-off-by: David S. Miller <[email protected]>