Joe Perches <j...@perches.com> writes:
> On Wed, 2016-01-06 at 16:33 -0500, David Miller wrote:
>> A repeating pattern in drivers has become to use OF node information
>> and, if not found, platform specific host information to extract the
>> ethernet address for a given device.
> []
>> diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
> []
>> @@ -485,3 +487,32 @@ static int __init eth_offload_init(void)
>> }
>>
>> fs_initcall(eth_offload_init);
>> +
>> +unsigned char * __weak arch_get_platform_mac_address(void)
>> +{
>> + return NULL;
>
> WARN_ON_ONCE ?
That would prevent a driver from using this with additional fallback
methods. For what reason?
I don't have a specific usecase, but I can imagine drivers falling back
to e.g a random address without wanting to be noisy about it.
Bjørn
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