netdev - Re: [PATCH v2 net-next] sysctl net: Remove macro checks for CONFIG

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Message-ID: <CAHj3AV=wkJnX5rW4jdFycf6vtm1vW2a+gVNAcTnnaR7JqsPEeg@mail.gmail.com>
Date: Tue, 21 Jan 2025 12:17:39 +0300
From: Denis Kirjanov <kirjanov@...il.com>
To: Jason Xing <kerneljasonxing@...il.com>
Cc: netdev@...r.kernel.org, edumazet@...gle.com, davem@...emloft.net, 
	kuba@...nel.org, pabeni@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 net-next] sysctl net: Remove macro checks for CONFIG_SYSCTL

> Please take a look at the commit:
> commit b144fcaf46d43b1471ad6e4de66235b8cebb3c87
> Author: Kuniyuki Iwashima <kuniyu@...zon.com>
> Date:   Wed Jun 14 12:47:05 2023 -0700
>
>     dccp: Print deprecation notice.
>
>     DCCP was marked as Orphan in the MAINTAINERS entry 2 years ago in commit
>     054c4610bd05 ("MAINTAINERS: dccp: move Gerrit Renker to CREDITS").  It says
>     we haven't heard from the maintainer for five years, so DCCP is not well
>     maintained for 7 years now.

Yes, but on another hand I see that it's evolving, like MP-DCCP and
the according ietf draft
here: https://datatracker.ietf.org/doc/draft-ietf-tsvwg-multipath-dccp/20/

Also there is a out-of-the tree repo available with the implementation
of mp-dccp:
https://github.com/telekom/mp-dccp

>
>     Recently DCCP only receives updates for bugs, and major distros disable it
>     by default.
>
>     Removing DCCP would allow for better organisation of TCP fields to reduce
>     the number of cache lines hit in the fast path.
>
>     Let's add a deprecation notice when DCCP socket is created and schedule its
>     removal to 2025.
>
> Thanks,
> Jason



-- 
Regards / Mit besten Grüßen,
Denis