netdev - Re: [PATCH] vlan: propogate MTU changes

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Message-ID: <48EA9223.8090700@trash.net>
Date:	Tue, 07 Oct 2008 00:33:07 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Stephen Hemminger <shemminger@...tta.com>
CC:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH] vlan: propogate MTU changes

Stephen Hemminger wrote:
> On Mon, 06 Oct 2008 18:02:39 +0200
> Patrick McHardy <kaber@...sh.net> wrote:
> 
>> - the stack in fact doesn't require us to reduce the MTU of a VLAN
>>    device as long as its within the physically possible MTU.
> 
> I think it should call change_mtu so userspace gets notified about both
> changes.

Agreed. But the question when to do automatic adjustments remains.

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