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If READ MAC fails to fetch a valid MAC address, allow some more device types (IQD and z/VM OSD) to fall back to a random address. Also use eth_hw_addr_random(), for indicating to userspace that the address type is NET_ADDR_RANDOM. Note that while z/VM has various protection schemes to prohibit custom addresses on its NICs, they are all optional. So we should at least give it a try. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>