netdev - Re: [PATCH] 8139cp: allow to set mac address on running device

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Message-ID: <20090312174641.GC20153@psychotron.englab.brq.redhat.com>
Date:	Thu, 12 Mar 2009 18:46:42 +0100
From:	Jiri Pirko <jpirko@...hat.com>
To:	Michal Schmidt <mschmidt@...hat.com>
Cc:	linux-kernel@...r.kernel.org, ivecera@...hat.com,
	jgarzik@...ox.com, davem@...emloft.net, netdev@...r.kernel.org
Subject: Re: [PATCH] 8139cp: allow to set mac address on running device

Thu, Mar 12, 2009 at 06:11:21PM CET, mschmidt@...hat.com wrote:
>On Thu, 12 Mar 2009 17:27:31 +0100
>Jiri Pirko <jpirko@...hat.com> wrote:
>
>> +	cpw32_f(MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr +
>> 0)));
>> +	cpw32_f(MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr +
>> 4)));
>
>You're writing to the card, so using *_to_cpu looks suspicious.
Well, I'm using the same approach as it is already done in function
cp_init_hw(). Quote:

 /* Restore our idea of the MAC address. */
 cpw32_f (MAC0 + 0, le32_to_cpu (*(__le32 *) (dev->dev_addr + 0)));
 cpw32_f (MAC0 + 4, le32_to_cpu (*(__le32 *) (dev->dev_addr + 4)));

Jirka
>
>Michal
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