[ 935.484448][T20934] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 935.484923][T20934] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address [ 936.231376][T20993] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address [ 936.231663][T20993] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode