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Date:   Tue, 22 Sep 2020 16:47:07 -0700
From:   Jay Vosburgh <jay.vosburgh@...onical.com>
To:     Stephen Hemminger <stephen@...workplumber.org>
cc:     Jarod Wilson <jarod@...hat.com>, linux-kernel@...r.kernel.org,
        Veaceslav Falico <vfalico@...il.com>,
        Andy Gospodarek <andy@...yhouse.net>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Thomas Davis <tadavis@....gov>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next 4/5] bonding: make Kconfig toggle to disable legacy interfaces

Stephen Hemminger <stephen@...workplumber.org> wrote:

>On Tue, 22 Sep 2020 09:37:30 -0400
>Jarod Wilson <jarod@...hat.com> wrote:
>
>> By default, enable retaining all user-facing API that includes the use of
>> master and slave, but add a Kconfig knob that allows those that wish to
>> remove it entirely do so in one shot.
>> 
>> Cc: Jay Vosburgh <j.vosburgh@...il.com>
>> Cc: Veaceslav Falico <vfalico@...il.com>
>> Cc: Andy Gospodarek <andy@...yhouse.net>
>> Cc: "David S. Miller" <davem@...emloft.net>
>> Cc: Jakub Kicinski <kuba@...nel.org>
>> Cc: Thomas Davis <tadavis@....gov>
>> Cc: netdev@...r.kernel.org
>> Signed-off-by: Jarod Wilson <jarod@...hat.com>
>
>Why not just have a config option to remove all the /proc and sysfs options
>in bonding (and bridging) and only use netlink? New tools should be only able
>to use netlink only.

	I agree that new tooling should be netlink, but what value is
provided by such an option that distros are unlikely to enable, and
enabling will break the UAPI?

>Then you might convince maintainers to update documentation as well.
>Last I checked there were still references to ifenslave.

	Distros still include ifenslave, but it's now a shell script
that uses sysfs.  I see it used in scripts from time to time.

	-J

---
	-Jay Vosburgh, jay.vosburgh@...onical.com

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