From nobody Sat Jun 27 05:08:05 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 EF133146D5A for ; Tue, 14 Apr 2026 13:34:18 +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=1776173659; cv=none; b=UyTs/pyocJZcEqmxf02q/YMPs37p/8OGXjwzK/x1Nl1suG1yjtpvKzL/S/qYDT5ZVQCR6xfJ6Ua5ZJKhuE4N4ZjoPW3cKANb2YszejT7tGgyOZJvvMSO6A1G6uBD6y3EawYonuENpTzJNdHq5woJoIeTJAZ1ITBkp4JA7op+wqY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776173659; c=relaxed/simple; bh=qJYr59Bc8P5gY4hTKhL7j3KTnZNz1z//RT7gpc1DOJ0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=k/jM+O81MY+xq9Uqw1cxPuFqoGye8oQkYH6/hFZc0is3tuWeDjqaes0CZc9LPGcuoP5kJpRsUIAE//+mvPGofIx6shzNeT4FRH5p4RBVcT3IV2C7h1epR/CszkI4dBMhg1haDDapgB2aXLX/nf/mDizjs9GSDtUT/rDkqr2fguI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KuIUMdpL; 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="KuIUMdpL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 47C07C2BCB0; Tue, 14 Apr 2026 13:34:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776173658; bh=qJYr59Bc8P5gY4hTKhL7j3KTnZNz1z//RT7gpc1DOJ0=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=KuIUMdpLRaHr2Z0Dt0/STwzVJlLW/f4EPglVWeTLxFkEErrb6KAdm2BGHPD7xy44A xvFR8P4kKrmCsq6wXnnkjsVIq0BlLixxyPXOO1kVaqMwLW29TYUxL6IJehtCPQSP2u /9CIG5KS2+djAxXMQ54DBMAiuE9R8cUK4oZemHHTWdIqUcSzyNuTfP77g16g84KAoP oP1LDPJ4j+2WStqnQMsk3SaSz1FuXyGSqZRFmwbPtqvTn3D0ezfFKXW5gFrYSuN14a rh0FvTUEZHb9fBoIhd4CsnHi97X5BQLRpoag57q5dn6jrvMW4RgUwX0smyK3x7mAOn yPeqaveWVwyhA== From: "Matthieu Baerts (NGI0)" Date: Tue, 14 Apr 2026 15:34:02 +0200 Subject: [PATCH mptcp-net v4 09/20] mptcp: pm: prio: skip closed subflows 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: <20260414-mptcp-inc-limits-v4-9-78274edda5dd@kernel.org> References: <20260414-mptcp-inc-limits-v4-0-78274edda5dd@kernel.org> In-Reply-To: <20260414-mptcp-inc-limits-v4-0-78274edda5dd@kernel.org> To: MPTCP Upstream Cc: "Matthieu Baerts (NGI0)" X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1077; i=matttbe@kernel.org; h=from:subject:message-id; bh=qJYr59Bc8P5gY4hTKhL7j3KTnZNz1z//RT7gpc1DOJ0=; b=owGbwMvMwCVWo/Th0Gd3rumMp9WSGDLvOfm2y6x8sGrfyYu/p7cyhM1+qnpmztonniZiWu87l Odls05q6ShlYRDjYpAVU2SRbovMn/m8irfEy88CZg4rE8gQBi5OAZhIqi3DP21f2/+f+7/vPDj5 9dFPzpYX8pOnJQkyVV2on1QvWJpU38fwT+vr3YKqgykVzROm87RfVZV5e6423mPx6wbPN5NzQ/W ecQIA X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 When sending an MP_PRIO, closed subflows needs to be skipped. This fixes the case where the initial subflow got closed, re-opened later, then an MP_PRIO is needed for the same local address. Note that explicit MP_PRIO cannot be sent during the 3WHS, so it is fine to use __mptcp_subflow_active(). Fixes: 067065422fcd ("mptcp: add the outgoing MP_PRIO support") Fixes: b29fcfb54cd7 ("mptcp: full disconnect implementation") Signed-off-by: Matthieu Baerts (NGI0) --- net/mptcp/pm.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index f32015d4fb87..236a8087da29 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -284,6 +284,9 @@ int mptcp_pm_mp_prio_send_ack(struct mptcp_sock *msk, struct sock *ssk =3D mptcp_subflow_tcp_sock(subflow); struct mptcp_addr_info local, remote; =20 + if (!__mptcp_subflow_active(subflow)) + continue; + mptcp_local_address((struct sock_common *)ssk, &local); if (!mptcp_addresses_equal(&local, addr, addr->port)) continue; --=20 2.53.0