netdev - Re: [PATCH?] Fix call to ->change_rx_flags(dev, IFF_MULTICAST) in dev_change

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Message-ID: <4832C864.8020605@trash.net>
Date:	Tue, 20 May 2008 14:47:32 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	David Woodhouse <dwmw2@...radead.org>
CC:	Linux Netdev List <netdev@...r.kernel.org>
Subject: Re: [PATCH?] Fix call to ->change_rx_flags(dev, IFF_MULTICAST) in
 dev_change_flags()

David Woodhouse wrote:
> Am I just being particularly dim today, or can the call to
> dev->change_rx_flags(dev, IFF_MULTICAST) in dev_change_flags() never
> happen?
> 
> We've just set dev->flags = flags & IFF_MULTICAST, effectively. So the
> condition '(dev->flags ^ flags) & IFF_MULTICAST' is _never_ going to be
> true.

Thanks for catching this, you're correct of course.
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