ixgbe: prevent from unwanted interface name changes

[ upstream commit e67a0bc ]

Users of the ixgbe driver report that after adding devlink support by
the commit a028523 ("ixgbe: add initial devlink support") their
configs got broken due to unwanted changes of interface names. It's
caused by automatic phys_port_name generation during devlink port
initialization flow.

To prevent from that set no_phys_port_name flag for ixgbe devlink ports.

Reported-by: David Howells <dhowells@redhat.com>
Closes: https://lore.kernel.org/netdev/3452224.1745518016@warthog.procyon.org.uk/
Reported-by: David Kaplan <David.Kaplan@amd.com>
Closes: https://lore.kernel.org/netdev/LV3PR12MB92658474624CCF60220157199470A@LV3PR12MB9265.namprd12.prod.outlook.com/
Fixes: a028523 ("ixgbe: add initial devlink support")
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Rinitha S <sx.rinitha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Cc: stable@vger.kernel.org # 6.16
Tested-By: Calvin Owens <calvin@wbinvd.org>
Signed-off-by: Calvin Owens <calvin@wbinvd.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Author: jjagielsk

drivers/net/ethernet/intel/ixgbe/devlink/devlink.c

@@ -543,6 +543,7 @@ int ixgbe_devlink_register_port(struct ixgbe_adapter *adapter)
 
 	attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
 	attrs.phys.port_number = adapter->hw.bus.func;
+	attrs.no_phys_port_name = 1;
 	ixgbe_devlink_set_switch_id(adapter, &attrs.switch_id);
 
 	devlink_port_attrs_set(devlink_port, &attrs);