netdev - Re: [patch 5/7] CAN: Add virtual CAN netdevice driver

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Message-ID: <469B6D8D.1030809@trash.net>
Date:	Mon, 16 Jul 2007 15:07:25 +0200
From:	Patrick McHardy <kaber@...sh.net>
To:	Oliver Hartkopp <oliver@...tkopp.net>
CC:	Urs Thuermann <urs@...ogud.escape.de>,
	David Miller <davem@...emloft.net>,
	Oliver Hartkopp <oliver.hartkopp@...kswagen.de>,
	j.hadi123@...il.com, netdev@...r.kernel.org
Subject: Re: [patch 5/7] CAN: Add virtual CAN netdevice driver

Oliver Hartkopp wrote:
> Patrick McHardy wrote:
> 
>>Still configuration of the network device based on module parameters.
>>What about people that want loopback and non-loopback devices at the
>>same time?
>>  
> 
> the people get the loopback functionality in ANY case. There is indeed
> no difference from the view of the users, if you change this switch.
> 
> The possibility to enable the loopback on vcan driver level is only to ...
> 
> 1. Test the loopback fallback code in af_can.c
> 2. Show, how a correct loopback handling is to be implemented
> 
> ... nothing more.


So its the "correct" handling and the other one is only fallback? That
still sounds like it wants proper configuration. How does loopback work
without this driver?
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