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Message-ID: <20110430101647.GC2658@psychotron.orion>
Date:	Sat, 30 Apr 2011 12:16:48 +0200
From:	Jiri Pirko <jpirko@...hat.com>
To:	Michał Mirosław <mirqus@...il.com>
Cc:	netdev@...r.kernel.org, davem@...emloft.net, xemul@...nvz.org
Subject: Re: [PATCH net-next-2.6] veth: remove unneeded ifname code from
 veth_newlink()

Fri, Apr 22, 2011 at 11:49:40AM CEST, mirqus@...il.com wrote:
>W dniu 22 kwietnia 2011 11:43 użytkownik Michał Mirosław
><mirqus@...il.com> napisał:
>> 2011/1/24 Jiri Pirko <jpirko@...hat.com>:
>>> The code is not needed because tb[IFLA_IFNAME] is already
>>> processed in rtnl_newlink(). Remove this redundancy.
>> Hi. This patch broke creation of veth devices. Reverting it fixes the issue.
>>
>> Symptoms:
>>
>> icybox:~# ip link add type veth
>> RTNETLINK answers: File exists
>> icybox:~# ip link add type veth peer veth1
>> icybox:~# ip addr
>> [...]
>> 56: D: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
>>    link/ether e6:57:58:52:03:50 brd ff:ff:ff:ff:ff:ff
>> 57: veth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
>>    link/ether c2:c2:a2:d5:d5:3a brd ff:ff:ff:ff:ff:ff
>
>Hmm. I was too quick. Reverting it fixes only first problem - "ip link
>add type veth" adds new veth pair now, but "ip link add type veth peer
>veth1" gives the same result as above.

I gusee you should do:
ip link add type veth peer name veth1
>
>Best Regards,
>Michał Mirosław
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