[  940.086699][T20771] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  940.092663][T20771] test-bond0: (slave test-noneth0): Error -95 calling set_mac_address
[  940.842221][T20829] test-bond0: (slave test-noneth0): The slave device specified does not support setting the MAC address
[  940.842965][T20829] test-bond0: (slave test-noneth0): Setting fail_over_mac to active for active-backup mode