netdev - Re: [PATCH net v3 3/4] tcp: add newval parameter to tcp_rcvbuf

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Message-ID: <CADVnQyna1BX8y8Gw4=+4dJ_VYn=O8JMzSqh2y1i+ZH5NpfPsfA@mail.gmail.com>
Date: Wed, 29 Oct 2025 09:42:21 -0400
From: Neal Cardwell <ncardwell@...gle.com>
To: "Matthieu Baerts (NGI0)" <matttbe@...nel.org>
Cc: Eric Dumazet <edumazet@...gle.com>, Kuniyuki Iwashima <kuniyu@...gle.com>, 
	"David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
	Simon Horman <horms@...nel.org>, David Ahern <dsahern@...nel.org>, 
	Mat Martineau <martineau@...nel.org>, Geliang Tang <geliang@...nel.org>, netdev@...r.kernel.org, 
	linux-kernel@...r.kernel.org, mptcp@...ts.linux.dev
Subject: Re: [PATCH net v3 3/4] tcp: add newval parameter to tcp_rcvbuf_grow()

On Tue, Oct 28, 2025 at 7:58 AM Matthieu Baerts (NGI0)
<matttbe@...nel.org> wrote:
>
> From: Eric Dumazet <edumazet@...gle.com>
>
> This patch has no functional change, and prepares the following one.
>
> tcp_rcvbuf_grow() will need to have access to tp->rcvq_space.space
> old and new values.
>
> Change mptcp_rcvbuf_grow() in a similar way.
>
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> [ Moved 'oldval' declaration to the next patch to avoid warnings at
>  build time. ]
> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@...nel.org>
> ---

Reviewed-by: Neal Cardwell <ncardwell@...gle.com>

Thanks, Eric and Matthieu!

neal