s390/qeth: improve fallback to random MAC address

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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>

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Julian Wiedmann 2018-04-26 09:42:24 +02:00 • committed by David S. Miller

parent d7e6ed97b5

commit 21b1702af1

1 changed files with 13 additions and 10 deletions

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23

drivers/s390/net/qeth_l2_main.c

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