Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
probe::netdev.change_mac - Called when the netdev_name has the MAC changed
SYNOPSIS
netdev.change_mac
VALUES
old_mac
The current MAC address
new_mac
The new MAC address
mac_len
The MAC length
dev_name
The device that will have the MAC changed
SystemTap Tapset Reference March 2016 PROBE::NETDEV.CHAN(3stap)