net/eth/ibmveth: Fixup retrieval of MAC address
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 3 May 2013 17:19:01 +0000 (17:19 +0000)
committerDavid S. Miller <davem@davemloft.net>
Sun, 5 May 2013 20:58:02 +0000 (16:58 -0400)
commit13f85203e1060da83d9ec1c1c5a63343eaab8de4
tree9dc878e404b40efbbb69451e360a406c8aaffdae
parent77d21f23a1e4db8639e3916547c903a3b3c7a07c
net/eth/ibmveth: Fixup retrieval of MAC address

Some ancient pHyp versions used to create a 8 bytes local-mac-address
property in the device-tree instead of a 6 bytes one for veth.

The Linux driver code to deal with that is an insane hack which also
happens to break with some choices of MAC addresses in qemu by testing
for a bit in the address rather than just looking at the size of the
property.

Sanitize this by doing the latter instead.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: <stable@vger.kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/ibm/ibmveth.c