net: ethernet: set default assignment identifier to NET_NAME_ENUM

As noted in the original commit 685343fc3ba6 ("net: add
name_assign_type netdev attribute")

  ... when the kernel has given the interface a name using global
  device enumeration based on order of discovery (ethX, wlanY, etc)
  ... are labelled NET_NAME_ENUM.

That describes this case, so set the default for the devices here to
NET_NAME_ENUM.  Current popular network setup tools like systemd use
this only to warn if you're setting static settings on interfaces that
might change, so it is expected this only leads to better user
information, but not changing of interfaces, etc.

Signed-off-by: Ian Wienand <iwienand@redhat.com>
Link: https://lore.kernel.org/r/20220406093635.1601506-1-iwienand@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index ebcc812735a4c13f104f5ed3e86b15fda4aef148..62b89d6f54fd2c6ed1b75064ba8f1db4c1200a23 100644 (file)
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -391,7 +391,7 @@ EXPORT_SYMBOL(ether_setup);
 struct net_device *alloc_etherdev_mqs(int sizeof_priv, unsigned int txqs,
                                      unsigned int rxqs)
 {
-       return alloc_netdev_mqs(sizeof_priv, "eth%d", NET_NAME_UNKNOWN,
+       return alloc_netdev_mqs(sizeof_priv, "eth%d", NET_NAME_ENUM,
                                ether_setup, txqs, rxqs);
 }
 EXPORT_SYMBOL(alloc_etherdev_mqs);