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

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Date: Wed, 21 Feb 2024 11:29:52 -0800
From: Joe Damato <jdamato@...tly.com>
To: Jakub Kicinski <kuba@...nel.org>
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, Feb 21, 2024 at 11:26:44AM -0800, Jakub Kicinski wrote:
> 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.

Well... it is useful to me, but I think I'm only one user and the side
effects of adding this might have painful results in the future so after
your comment I think it might be best left out.

Sorry for the noise.