linux-kernel - Re: [PATCH resend] Fix a lock problem in generic phy code

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Message-ID: <20070911022110.GC1544@gondor.apana.org.au>
Date:	Tue, 11 Sep 2007 10:21:10 +0800
From:	Herbert Xu <herbert.xu@...hat.com>
To:	Hans-Jürgen Koch <hjk@...utronix.de>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	jeff@...zik.org, afleming@...escale.com
Subject: Re: [PATCH resend] Fix a lock problem in generic phy code

On Mon, Sep 10, 2007 at 08:45:50PM +0200, Hans-Jürgen Koch wrote:
>
> > Could you please audit all instances of physdev->lock and add
> > _bh where necessary?  I can see that at least phys_stop also
> > needs the _bh.
> 
> I think the patch does all that's necessary. At least, there're no error
> messages in the logs anymore. I didn't check if there's an error on
> unload, though.

Sorry, but you can't rely on the non-existence of lockdep
messages as a proof of correctness :)

If we're going to fix the obvious bugs here, we should fix
the subtle ones too as otherwise they'll be much harder to
notice with this patch merged.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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