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SubjectRe: [PATCH net-next 4/5] bonding: make Kconfig toggle to disable legacy interfaces
Stephen Hemminger <> wrote:

>On Tue, 22 Sep 2020 09:37:30 -0400
>Jarod Wilson <> 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 <>
>> Cc: Veaceslav Falico <>
>> Cc: Andy Gospodarek <>
>> Cc: "David S. Miller" <>
>> Cc: Jakub Kicinski <>
>> Cc: Thomas Davis <>
>> Cc:
>> Signed-off-by: Jarod Wilson <>
>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.


-Jay Vosburgh,

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