netdev - Re: [RFC] bonding driver terminology change proposal

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Message-ID: <20200713154118.3a1edd66@hermes.lan>
Date:   Mon, 13 Jul 2020 15:41:18 -0700
From:   Stephen Hemminger <stephen@...workplumber.org>
To:     Michal Kubecek <mkubecek@...e.cz>
Cc:     netdev@...r.kernel.org, Jarod Wilson <jarod@...hat.com>
Subject: Re: [RFC] bonding driver terminology change proposal

On Tue, 14 Jul 2020 00:00:16 +0200
Michal Kubecek <mkubecek@...e.cz> wrote:

> On Mon, Jul 13, 2020 at 02:51:39PM -0400, Jarod Wilson wrote:
> > To start out with, I'd like to attempt to eliminate as much of the use
> > of master and slave in the bonding driver as possible. For the most
> > part, I think this can be done without breaking UAPI, but may require
> > changes to anything accessing bond info via proc or sysfs.  
> 
> Could we, please, avoid breaking existing userspace tools and scripts?
> Massive code churn is one thing and we could certainly bite the bullet
> and live with it (even if I'm still not convinced it would be as great
> idea as some present it) but trading theoretical offense for real and
> palpable harm to existing users is something completely different.
> 
> Or is "don't break userspace" no longer the "first commandment" of linux
> kernel development?
> 
> Michal Kubecek

Please consider using same wording as current standard for link aggregration.
Current version is 802.1AX and it uses the terms:
  Multiplexer /  Aggregator

There are no uses of master or slave in 802.1Ax standard.

As far as userspace, maybe keep the old API's but provide deprecation nags.
And don't document the old API values.