net: smc911x: Automatically Update ethaddr with MAC
The ethernet controller can read the MAC from EEPROM and display it, but if ethaddr is not set, the ethernet is still unavailable. This patch checks will automatically set the MAC address if it has not already been set. Signed-off-by: NAdam Ford <aford173@gmail.com> Acked-by: NJoe Hershberger <joe.hershberger@ni.com>
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