From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D894C29BDB7; Tue, 12 Aug 2025 19:10:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755025847; cv=none; b=TxRNBHiJ/2WPWbvPeHJAVzESU+i2/lRjeFOnkrAFFQp0KOD5dgVj0qYOBIYxZuUmrusADHUoa+EKEAgbPJ2MRP+HdvaTGb66v1CSVOpY9IpVu0x2WkIAsWF5MAMckz1ofaDrgI59DOG4FYR326q42yZzUdkDdm62OwEBCbx7G08= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755025847; c=relaxed/simple; bh=xI0S+PlIy0LKyfWoSnYkLWxjuCS+IZE54e9GUysf8GY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=MW7YrhNeMWDSP2W76uq/leq81P924FPUR9uVrNVHsxRtsZjz6l62Rfww+k/cN0WwlNRQ1ALxYnPtQ1BmXBF2f0OfUskV3Dxz+0z3H96qaV5Apv1r0/ExPcGfbRPcF39lymh52i0CTxVLG8mKashygfkE+PrJGyIXv1aeFtbIv+4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=seg5kpBd; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="seg5kpBd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DBB8FC4CEF1; Tue, 12 Aug 2025 19:10:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755025847; bh=xI0S+PlIy0LKyfWoSnYkLWxjuCS+IZE54e9GUysf8GY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=seg5kpBd9033eVc4pKHZNuIX/WNtiftM4Tv1AOUSMhBfntRbIf17DPolsjv6l1pVw 3Ae1BuxzPu2SKCjQvd8XIrD7f8RHNZE1jONUJMwt/+DlHPtKLLzwFS5k8GGekgfm8y J6LYkVcPf+G0haZTwxbqcoJQzKm9VcuUBmBKXfVs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Eric Dumazet , Kuniyuki Iwashima , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.15 162/480] tcp: call tcp_measure_rcv_mss() for ooo packets Date: Tue, 12 Aug 2025 19:46:10 +0200 Message-ID: <20250812174404.206902638@linuxfoundation.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250812174357.281828096@linuxfoundation.org> References: <20250812174357.281828096@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Eric Dumazet [ Upstream commit 38d7e444336567bae1c7b21fc18b7ceaaa5643a0 ] 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 Reviewed-by: Kuniyuki Iwashima Link: https://patch.msgid.link/20250711114006.480026-5-edumazet@google.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- net/ipv4/tcp_input.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index e75ee9023674..ca24c2ea359b 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -5056,6 +5056,7 @@ static void tcp_data_queue_ofo(struct sock *sk, struct sk_buff *skb) return; } + tcp_measure_rcv_mss(sk, skb); /* Disable header prediction. */ tp->pred_flags = 0; inet_csk_schedule_ack(sk); -- 2.39.5