netdev - Re: [PATCH net-next-2.6] veth: remove unneeded ifname code from veth

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Date:	Fri, 22 Apr 2011 11:49:40 +0200
From:	Michał Mirosław <mirqus@...il.com>
To:	Jiri Pirko <jpirko@...hat.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()

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.

Best Regards,
Michał Mirosław
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