netdev - Re: [PATCH net-next 4/8] tcp: call tcp_measure_rcv

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAAVpQUAfuefjm9d4_ny8EP2F4XUB2Nk8-VgvufJLQ+8Rq=NuBQ@mail.gmail.com>
Date: Sat, 12 Jul 2025 14:11:54 -0700
From: Kuniyuki Iwashima <kuniyu@...gle.com>
To: Eric Dumazet <edumazet@...gle.com>
Cc: "David S . Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
	Paolo Abeni <pabeni@...hat.com>, Neal Cardwell <ncardwell@...gle.com>, 
	Simon Horman <horms@...nel.org>, Willem de Bruijn <willemb@...gle.com>, netdev@...r.kernel.org, 
	eric.dumazet@...il.com
Subject: Re: [PATCH net-next 4/8] tcp: call tcp_measure_rcv_mss() for ooo packets

On Fri, Jul 11, 2025 at 4:40 AM Eric Dumazet <edumazet@...gle.com> wrote:
>
> tcp_measure_rcv_mss() is used to update icsk->icsk_ack.rcv_mss
> (tcpi_rcv_mss in tcp_info) and tp->scaling_ratio.
>
> Calling it from tcp_data_queue_ofo() makes sure these
> fields are updated, and permits a better tuning
> of sk->sk_rcvbuf, in the case a new flow receives many ooo
> packets.
>
> Fixes: dfa2f0483360 ("tcp: get rid of sysctl_tcp_adv_win_scale")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Reviewed-by: Kuniyuki Iwashima <kuniyu@...gle.com>