From nobody Thu Jun 25 13:21:17 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 07CC9271A94 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=1776173658; cv=none; b=YPp52gwOjHyLzUHowS//Kqzfkt9aRxt7/3B3h0vCZSPC37GPQzgPiUszo2n5Mauynt51yRDF2Q4TW5n7Hg6nXu8mvp6OMY880GF2hIGGI+TgieKOz5E/RrrCCrA+f6rdEyk3K6aquJPUKH571nQftesJikJgX6qZYNlJWQCVE1Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776173658; c=relaxed/simple; bh=hsYD0jMLJGmnh+est9GL0ngNzWUhY9f3/6jRBWsnSWM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=T/M5tUmv+Lg6SD4D1m1lBvhWlZDaNoszVoO5y4HNhbnv9yWsjjfoYy4WX8GQZokhHBbqJs7gcbzoASPi3L4t9lFA7k1GgwtvPPNNrijlvBmRY+5Pb6hTCzqiA7pRea360vJiY9iCwV3OlG3wnPWt9NnxRNyCpYQTqN259UyXwu8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RbukaZe9; 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="RbukaZe9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7F1CDC2BCB0; Tue, 14 Apr 2026 13:34:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776173657; bh=hsYD0jMLJGmnh+est9GL0ngNzWUhY9f3/6jRBWsnSWM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=RbukaZe9kHqbGGOxeDesS5V+0tEgmEdkDrKofvGQfvhpSHhmpMuehOMrOPemLk/mA Z7oK1mVn99TXZ+8rEH7Rb1PrlL/YJkQxjRbXiqJkbiY0BLyHJjjTxWnJXsOaU96KYp ZuryW0+yO5VruwASIbV7l2jDowh+FGBwDmuOofvE69tvw8Jkzq5IptE7D9/DaIg+kk ttyIYEl/mMJGv8YFatr2ec+6od5fXrtwtoZNT/zIrc9ndQ6VUvHt/GsxLhKi05DHYs iJmS5QYwFppGyEYZyRUYqIcJvVIbXtVin2CsX2UmEo9SP3h3Uf+nP6rjZmFPQgcxlU R78hQnChQVoCA== From: "Matthieu Baerts (NGI0)" Date: Tue, 14 Apr 2026 15:34:01 +0200 Subject: [PATCH mptcp-net v4 08/20] mptcp: pm: retrans ADD_ADDR: return early if no retrans 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-v4-8-78274edda5dd@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=747; i=matttbe@kernel.org; h=from:subject:message-id; bh=hsYD0jMLJGmnh+est9GL0ngNzWUhY9f3/6jRBWsnSWM=; b=owGbwMvMwCVWo/Th0Gd3rumMp9WSGDLvOfnaX1Swe3gzeXr3ls2uHSppJZNOLPgUv/DLUputv junrzk0oaOUhUGMi0FWTJFFui0yf+bzKt4SLz8LmDmsTCBDGLg4BWAisdMYGX6sKIz+ecT7oPfb 6cc7WlbO7eT7xV+u32DKdnf70mVillWMDIskm5acu/WxXuZRqaD09G2zvA6GPpXhvtS3UuHGqxd ty1gA X-Developer-Key: i=matttbe@kernel.org; a=openpgp; fpr=E8CB85F76877057A6E27F77AF6B7824F4269A073 No need to iterate over all subflows if there is no retransmission needed. Exit early in this case then. 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 89a9790e50bb..f32015d4fb87 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -308,6 +308,9 @@ static unsigned int mptcp_adjust_add_addr_timeout(struc= t mptcp_sock *msk) struct mptcp_subflow_context *subflow; unsigned int max =3D 0, max_stale =3D 0; =20 + if (!rto) + return 0; + mptcp_for_each_subflow(msk, subflow) { struct sock *ssk =3D mptcp_subflow_tcp_sock(subflow); struct inet_connection_sock *icsk =3D inet_csk(ssk); --=20 2.53.0