[U-Boot] Mac address warning

[Wolfgang Denk <wd@denx.de>]

Dear Eric Nelson,

In message <51FAEF05.1050700@boundarydevices.com> you wrote:
> 
> While testing Troy's usbnet patches, I was reminded of
> this mysterious warning issued when the environment has
> no mac address stored, but the device provides one:
> 
> 	printf("\nWarning: %s using MAC address from net device\n",
> 			dev->name);
> 
> Why is this a warning? It's the out-of-the box default
> for new boards who haven't saved a mac address to the
> persistent environment.

It is a warnign because in U-Boot the "ethaddr" environment variable
is considered the primary source of information here.  If it is
missing, U-Boot may try to use other sources for this information, but
it will warn you that it is not doing the normal thing.

Best regards,

Wolfgang Denk

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