Re: [PATCH 00/10 net-next] Convert CONFIG_IPV6 to built-in and remove stubs

[Fernando Fernandez Mancera]

On 3/10/26 10:42 PM, Jakub Kicinski wrote:
> On Tue, 10 Mar 2026 21:02:40 +0100 Krzysztof Kozlowski wrote:
> > > Here is the top line of bloatometer without debug info:
> > >
> > >    add/remove: 1769/7 grow/shrink: 86/0 up/down: 374521/-228 (374293)
> > >
> > > The vmlinux increases by 200kB with IPv6 built in.
> > > Not a very dramatic increase.
> > >
> > > Please note that opening any dual-stack socket will cause the IPv6
> > > module to get loaded. And opening a dual-stack socket will fail if
> > > IPv6 is blacklisted. So I find it quite hard to believe that other
> > > that deeply embedded systems with custom configs there are systems
> > > out there which don't end up with IPv6 loaded. Whether they have
> > > a single IPv6 address configured or not.
> >
> > Yes, Ubuntu for that reasons does not have it even as module.
> >
> > This should be used as *the* argument for these changes.
>
> Completely fair, the submission is severely lacking in motivation
> and impact analysis :(

Yes it is. Sorry. I did handle that partially on v2 but will included as 
much arguments as possible in v3 and greater.

Thanks,
Fernando.