From nobody Wed Jun 24 20:15:03 2026 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 544B5421F00; Mon, 27 Apr 2026 19:54:54 +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=1777319694; cv=none; b=DJHd4StlDVQQO6//W9Nmx5EeuDSoeDw40C3dPD0y9K9lHfb36OWFRsqYUV3l2t05uZwG8aV82mgzOffLkVl53FrEpi55sFmEcnww4xpoW6+B/pkmr7ubUtU3eUcU5+ZeGfzWbwHs2zK35DUJzkp+RGJvHA8hz9dxnqPPX3FXuAg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777319694; c=relaxed/simple; bh=przPaxcMyBQzUmg2GX2M3OT2M/7tS8ONkDW/LqeDsoE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=pdSLmEIN81Lxi1UOubMdP3g0pEPjN/cFWrUy5F/9ukU0ffQPlJKgergz4649a0/L6zXguBUte3Lz7e7jzP3rDUtMF1Ii0SHxS7kBt8wX7e4dP2tq5MqMZqCvqwObpMZ5GCidE9TH/mYg929ztGrG1mjyG77QVzlr+WTsLG98Bv0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=phhMefp/; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="phhMefp/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F413EC2BCB7; Mon, 27 Apr 2026 19:54:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777319694; bh=przPaxcMyBQzUmg2GX2M3OT2M/7tS8ONkDW/LqeDsoE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=phhMefp/bubG1wz7S69WSbqk2q9hthM4+xhqV8oyp/3VIXb+nsgE4CTpfO8I5nP01 YIAAIdWDfhSOeimUtGYHSQxDGKNl+efO60p/rDmDix2mFad5uAohHZlbQqrZdqgpq+ viiKxt8okhLVdGsthpCpBdoNy0XtePLbYQSmRbDRzEwKBphgPDoqKh+FDXw7AQYpU+ WJdwXsi+ESkkfcBZnhlmX/Q3k9Dw6EIy4Jksdr2+6Rvn9HrFAbUA6dBNWgj6E8Qwzl qTbH9Ly2kysB5U3IiD/C+dtrA7/lZ7qsfnNzeKqvPeO6c5B+HHux308408BlGcDciP Z3yuEivMMHWDA== From: "Matthieu Baerts (NGI0)" Date: Mon, 27 Apr 2026 21:54:36 +0200 Subject: [PATCH net 4/4] mptcp: pm: kernel: reset fullmesh counter after flush Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260427-net-mptcp-misc-fixes-7-1-rc2-v1-4-7432b7f279fa@kernel.org> References: <20260427-net-mptcp-misc-fixes-7-1-rc2-v1-0-7432b7f279fa@kernel.org> In-Reply-To: <20260427-net-mptcp-misc-fixes-7-1-rc2-v1-0-7432b7f279fa@kernel.org> To: Mat Martineau , Geliang Tang , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Florian Westphal Cc: netdev@vger.kernel.org, mptcp@lists.linux.dev, linux-kernel@vger.kernel.org, "Matthieu Baerts (NGI0)" , stable@vger.kernel.org, Sashiko X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1261; i=matttbe@kernel.org; h=from:subject:message-id; bh=przPaxcMyBQzUmg2GX2M3OT2M/7tS8ONkDW/LqeDsoE=; b=owGbwMvMwCVWo/Th0Gd3rumMp9WSGDLf72fgsAvJVZ6SxHpSN1d0RQ6vm0/JW54d66pP/jqg4 S4vu/5xRykLgxgXg6yYIot0W2T+zOdVvCVefhYwc1iZQIYwcHEKwEREvjEybD1hnKrt+kp5v+e/ jHcNRl9qFy0XNo5Je2jzsrd/tmzvBIZ/OjVrlLYEyDF4vVFxX3Bjq4LK56j8gviXEla/lZ78Wru PFQA= X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 This variable counts how many MPTCP endpoints have a 'fullmesh' flag set. After having flushed all MPTCP endpoints, it is then needed to reset this counter. Without this reset, this counter exposed to the userspace is wrong, but also non-fullmesh endpoints added after the flush will not be taken into account to create subflows in reaction to ADD_ADDRs. Fixes: f88191c7f361 ("mptcp: pm: in-kernel: record fullmesh endp nb") Cc: stable@vger.kernel.org Reported-by: Sashiko Closes: https://sashiko.dev/#/patchset/20260422-mptcp-inc-limits-v6-0-90318= 1771530%40kernel.org?part=3D15 Reviewed-by: Mat Martineau Signed-off-by: Matthieu Baerts (NGI0) --- net/mptcp/pm_kernel.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/mptcp/pm_kernel.c b/net/mptcp/pm_kernel.c index 0ebf43be9939..c9f1e5af3cd3 100644 --- a/net/mptcp/pm_kernel.c +++ b/net/mptcp/pm_kernel.c @@ -1278,6 +1278,7 @@ static void __reset_counters(struct pm_nl_pernet *per= net) WRITE_ONCE(pernet->endp_signal_max, 0); WRITE_ONCE(pernet->endp_subflow_max, 0); WRITE_ONCE(pernet->endp_laminar_max, 0); + WRITE_ONCE(pernet->endp_fullmesh_max, 0); pernet->endpoints =3D 0; } =20 --=20 2.53.0