netdev - Re: [PATCH] sky2: Add a mutex around ethtools operations

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Message-ID: <20090805174158.383dcc03@nehalam>
Date:	Wed, 5 Aug 2009 17:41:58 -0700
From:	Stephen Hemminger <shemminger@...ux-foundation.org>
To:	Mike McCormack <mikem@...g3k.org>
Cc:	netdev@...r.kernel.org, Rene Mayrhofer <rene@...rhofer.eu.org>,
	Richard Leitner <leitner@...s.at>
Subject: Re: [PATCH] sky2: Add a mutex around ethtools operations

On Thu, 06 Aug 2009 07:46:02 +0900
Mike McCormack <mikem@...g3k.org> wrote:

> As multiple sky2 devices share some of the same hardware, and ethtool
> operations are per device, access to transmit timers, eeprom access,
>  coalesce, etc. should be serialized.
> 
> Only tested on a single port card, as my sky2 doesn't have dual ports.
> 
> Signed-off-by: Mike McCormack <mikem@...g3k.org>

NAK.
The ethtool operations are already serialized by rtnl mutex at
higher level.  See net/core/dev.c 
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