netdev - Re: [PATCH net-next 0/2] Expose netdev name in netdev netlink APIs

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Message-ID: <20240221112644.3d8c4c5a@kernel.org>
Date: Wed, 21 Feb 2024 11:26:44 -0800
From: Jakub Kicinski <kuba@...nel.org>
To: Joe Damato <jdamato@...tly.com>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, Alexei Starovoitov
 <ast@...nel.org>, Amritha Nambiar <amritha.nambiar@...el.com>, "David S.
 Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jesper
 Dangaard Brouer <hawk@...nel.org>, Larysa Zaremba
 <larysa.zaremba@...el.com>, Maciej Fijalkowski
 <maciej.fijalkowski@...el.com>, Paolo Abeni <pabeni@...hat.com>, Sridhar
 Samudrala <sridhar.samudrala@...el.com>, Stanislav Fomichev
 <sdf@...gle.com>, Tariq Toukan <tariqt@...dia.com>
Subject: Re: [PATCH net-next 0/2] Expose netdev name in netdev netlink APIs

On Wed, 21 Feb 2024 11:21:23 -0800 Joe Damato wrote:
> > For context, the reason why I left the names out is that they can change
> > at any moment, but primarily because there are also altnames now:
> > 
> > 2: eth0:
> > [...]
> >     altname enp2s0np0
> > 
> > Most of the APIs try to accept altnames as well as the "main" name.
> > If we propagate the name we'll step back into the rtnetlink naming
> > mess :(  
> 
> OK, I see. I didn't realize this was a thing. I suppose what you are saying
> is that we wouldn't want to expose names at all and stick with ifindexes
> only, is that right?

If you think it's a major usability improvement I can be convinced,
but yes, leaving the names out initially was indeed intentional.