Re: r8169 MAC addresses broken

From: Ivan Vecera
Date: Tue Nov 04 2008 - 13:50:30 EST


Jiri Slaby wrote:
> On 11/03/2008 10:04 AM, Ivan Vecera wrote:
>> Jiri Slaby wrote:
>>> On 10/28/2008 02:45 PM, Krzysztof Halasa wrote:
>>>> Jiri Slaby <jirislaby@xxxxxxxxx> writes:
>>>>
>>>>>> Same thing if you unplug the battery ?
>>>>> Thanks, now it seems to be OK.
>>>> Well, perhaps reverting that patch was a bit premature?
>>> No, it helped after reverting that patch. I think we don't want defunct 2.6.28
>>> with these nics.
>> I cannot agree.
>
> You want defunct r8169 in 2.6.28? Or cannot agree with what?
>
>> IMO the problem was in the first version of the patch that didn't
>> check for invalid (zeroed) MAC address. In this case is necessary to power-off (desktop
>> case) or unplug the battery (notebook case).
>
> I see no updated patch in this thread to test -- am I missing something?
Francois has fix for this problem (zeroed MAC address) in his repository:
http://git.kernel.org/?p=linux/kernel/git/romieu/netdev-2.6.git;a=commitdiff;h=9b1abbccf53ef1a1213b159d56257b535c599f07

snippet:
...
- /* Write MAC address */
- rtl_rar_set(tp, mac);
+ if (is_valid_ether_addr(mac))
+ rtl_rar_set(tp, mac);
...


When MAC only zeros then it is not assigned. Pulling this commit is better than reverting whole patch.

Ivan
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