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From: ebiederm@xmission.com (Eric W. Biederman)
To: Patrick McHardy <kaber@trash.net>
Cc: netdev@vger.kernel.org, socketcan@hartkopp.net, hadi@cyberus.ca,
	xemul@sw.ru, tgraf@suug.ch
Subject: Re: [RFC RTNETLINK 00/09]: Netlink link creation API
Date: Wed, 06 Jun 2007 10:13:36 -0600	[thread overview]
Message-ID: <m14plluklr.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <4666D426.2070606@trash.net> (Patrick McHardy's message of "Wed, 06 Jun 2007 17:35:02 +0200")

Patrick McHardy <kaber@trash.net> writes:

>> I still think adding a IFLA_PARTNER or a custom attribute is cleaner
>> in this case.  Slight semantic mismatches are the worst design bugs
>> to correct.
>
>
> Indeed, IFLA_PARTNER sounds like a better idea. I just suggested to
> Pavel to create only a single device per newlink operation and binding
> them later, what do you think about that?

I don't think it solves much because we still need a way to report the
partner device.

On the actual using side I think it makes the core of the driver much
more difficult to get right.  

Basically if we can't count on having a partner device we have to
add NULL pointer checks and locking to the packet dispatch which
is otherwise unnecessary.

Eric


  parent reply	other threads:[~2007-06-06 16:15 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-05 14:12 [RFC RTNETLINK 00/09]: Netlink link creation API Patrick McHardy
2007-06-05 14:12 ` [RFC NETLINK 01/09]: Mark netlink policies const Patrick McHardy
2007-06-05 19:39   ` David Miller
2007-06-05 14:12 ` [RFC RTNETLINK 02/09]: ifindex 0 does not exist Patrick McHardy
2007-06-05 19:40   ` David Miller
2007-06-05 14:12 ` [RFC RTNETLINK 03/09]: Split up rtnl_setlink Patrick McHardy
2007-06-05 19:41   ` David Miller
2007-06-05 14:12 ` [RFC RTNETLINK 04/09]: Link creation API Patrick McHardy
2007-06-05 19:43   ` David Miller
2007-06-05 21:09     ` Patrick McHardy
2007-06-05 22:03   ` Stephen Hemminger
2007-06-05 23:17     ` Patrick McHardy
2007-06-05 23:16       ` Stephen Hemminger
2007-06-06 11:42         ` Patrick McHardy
2007-06-06 16:37   ` Eric W. Biederman
2007-06-06 16:50     ` Patrick McHardy
2007-06-06 18:02       ` Eric W. Biederman
2007-06-05 14:12 ` [RFC DUMMY 05/09]: Use dev->stats Patrick McHardy
2007-06-05 19:44   ` David Miller
2007-06-05 14:13 ` [RFC DUMMY 06/09]: Keep dummy devices on list Patrick McHardy
2007-06-05 19:44   ` David Miller
2007-06-05 14:13 ` [RFC DUMMY 07/09]: Use rtnl_link API Patrick McHardy
2007-06-05 19:46   ` David Miller
2007-06-05 14:13 ` [RFC IFB 08/09]: Keep ifb devices on list Patrick McHardy
2007-06-05 14:13 ` [RFC IFB 09/09]: Use rtnl_link API Patrick McHardy
2007-06-05 14:18 ` [RFC IPROUTE]: iplink: use netlink for link configuration Patrick McHardy
2007-06-05 19:37 ` [RFC RTNETLINK 00/09]: Netlink link creation API David Miller
2007-06-05 21:10   ` Patrick McHardy
2007-06-05 22:00 ` jamal
2007-06-05 22:07   ` Patrick McHardy
2007-06-05 22:29     ` jamal
2007-06-06  0:40 ` Eric W. Biederman
2007-06-06 11:50   ` Patrick McHardy
2007-06-06 15:25     ` Eric W. Biederman
2007-06-06 15:35       ` Patrick McHardy
2007-06-06 15:56         ` Alexey Kuznetsov
2007-06-06 16:32           ` Patrick McHardy
2007-06-06 17:31             ` Eric W. Biederman
2007-06-06 19:14             ` Alexey Kuznetsov
2007-06-07  8:06               ` Eric W. Biederman
2007-06-06 16:13         ` Eric W. Biederman [this message]
2007-06-06 16:25           ` Patrick McHardy
2007-06-06 13:46 ` Patrick McHardy

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