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Date:   Mon, 01 Apr 2019 13:31:00 -0700 (PDT)
From:   David Miller <>
Subject: Re: [PATCH 1/2] net: enable IPv6 iff IPv4

From: Maciej ┼╗enczykowski <>
Date: Mon,  1 Apr 2019 12:44:58 -0700

> From: Maciej ┼╗enczykowski <>
> IPv6 is 20 years old and IPv4 has run out of IP addresses
> and is deprecated.
> It is time to make IPv6 a first class citizen.
> As such we remove the ability to compile IPv6 as a module,
> and IPv4 support now implies IPv6 support.
> This has the nice benefit of allowing upcoming code simplification:
> all IPv6 module support can be removed, and we'll be able to merge
> IPv6 socket state into the base IPv4 socket state...
> At some point we should be able to reverse things and make IPv4
> the optional protocol and possibly even make an ipv4.ko.
> Signed-off-by: Maciej ┼╗enczykowski <>

Things are modular because we don't unilaterally make decisions for
people on this level.

This is why I'm very much not too motivated to integrate changes like
this, even though I understand the motivation and simplifications this
would enable.

I mean, who the heck are we to tell someone that because they make
some tiny device meant for an isolated ipv4 environment that they
_MUST_ have ipv6 also built into their kernels?


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