linux-kernel - Re: [PATCH] drivers:ethernet:davinci_emac.c:Fixes flaw in mac address handling.

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Message-Id: <20141003.145524.270976129977723195.davem@davemloft.net>
Date:	Fri, 03 Oct 2014 14:55:24 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	mwelling@...e.org
Cc:	tony@...mide.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers:ethernet:davinci_emac.c:Fixes flaw in mac
 address handling.

From: Michael Welling <mwelling@...e.org>
Date: Fri, 3 Oct 2014 15:43:59 -0500

> On Fri, Oct 03, 2014 at 01:03:05PM -0700, David Miller wrote:
>> From: Michael Welling <mwelling@...e.org>
>> Date: Wed,  1 Oct 2014 21:32:05 -0500
>> 
>> > The code currently checks the mac_addr variable that is clearly
>> > zero'd out during allocation.
>> > 
>> > Further code is added to bring the mac_addr from the partial pdata.
>> > 
>> > Signed-off-by: Michael Welling <mwelling@...e.org>
>> 
>> I don't see anyone specifying a MAC address in the partial pdata,
>> so better to just delete that field.
>> 
>> Even if people did, I am not so sure that the partial pdata should
>> unconditionally trump an OF provided MAC address.
> 
> So should I just leave the code for handling the mac_addr field from the
> partial pdata out or make it such that the mac_addr field is overriden 
> if specified from the devicetree?

I'm saying the partial pdata mac_addr is completely unused and should
be removed.
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