linux-kernel - Re: [PATCH] tcp: export symbol tcp_set_congestion

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Date:   Thu, 10 Mar 2022 12:48:25 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Mingbao Sun <sunmingbao@....com>
Cc:     Eric Dumazet <edumazet@...gle.com>,
        "David S . Miller" <davem@...emloft.net>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Christoph Hellwig <hch@....de>,
        tyler.sun@...l.com, ping.gan@...l.com, yanxiu.cai@...l.com,
        libin.zhang@...l.com, ao.sun@...l.com
Subject: Re: [PATCH] tcp: export symbol tcp_set_congestion_control

On Thu, 10 Mar 2022 21:48:30 +0800 Mingbao Sun wrote:
> Since the kernel API 'kernel_setsockopt' was removed, and since the
> function ‘tcp_set_congestion_control’ is just the real underlying guy
> handling this job, so it makes sense to get it exported.

Do you happen to have a reference to the commit which removed
kernel_setsockopt and the justification?  My knee jerk reaction
would the that's a better path than allowing in-kernel socket users 
to poke at internal functions even if that works as of today.