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 33C90244668 for ; Fri, 19 Sep 2025 10:51:00 +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=1758279061; cv=none; b=oDK+zx+501H52aCMtz6xph8TdTC63dZNDEGoXhC4Yb7t4aOumMT9Q/yLKQaECvJPZRGVTo8omgA67Y/PFsS0RhZxZXSv7/aG+c7mQULi1pL4xKPcSsDYkFpwkFwSdexFVc1dUZOMSoc+mCTxOQ9qMPAMf3jLWcSlcTOFOflWbac= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758279061; c=relaxed/simple; bh=UkDKYT/rN6MF3Amo2nQX6udtneTlGF8vmELWNPBMCeY=; h=Message-ID:Date:MIME-Version:Subject:From:To:References: In-Reply-To:Content-Type; b=t0LJBbz1LthFRPrrfKrSciykzDfKURwtdYVEIVmyi9A1ugUIff+Opr5Sp8Z1aIVrFtPo4Mhc6DNulDE+/ED7k2S6Guw562HJz4+6Jtwl5b09pTxjXx+PiuPLhy8SYgFv4hSoGkLEtdKlhTg0UtifJsljzcV0cgdXV10iVbC27WI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nfwx1B7/; 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="nfwx1B7/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33B26C4CEF0; Fri, 19 Sep 2025 10:50:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758279060; bh=UkDKYT/rN6MF3Amo2nQX6udtneTlGF8vmELWNPBMCeY=; h=Date:Subject:From:To:References:In-Reply-To:From; b=nfwx1B7/eXaKttvf7ieKTbSIGqyYHNcEdt5hSsrzSCoK3xWr/6P0bacxyD8rFmtZ3 pj4ouq/MaMVRuMEk8bG1D5LV7nZFb1ZYxWyNzcS8YlA1BJHN/tMiQvtRLFI1hVf7F3 ehrSwbv3RYXDGI6FohoiYUVDmD95Sptp9cE7Be/HaeMSlKS59gK5srs1iiNy30MCw3 fFpN4ArEwHwxMDzci5fYqsKKTQFvZCKZmOMxYrdls/FXG3wuv/H/swiI9+WMOe2T1a XAJ/Y3XZIia5TQaGTduErxbPlBHsHhb9nSG78ssehWKs7sMqaN1icfN8rMRmWjwQF3 0vvc0glaXlj/A== Message-ID: <56ec31af-4468-4445-aa19-01f407100def@kernel.org> Date: Fri, 19 Sep 2025 12:50:58 +0200 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Beta Subject: Re: [PATCH mptcp-net v2 0/2] mptcp: pm: in-kernel: usable client side with C-flag Content-Language: en-GB, fr-BE From: Matthieu Baerts To: Geliang Tang , MPTCP Upstream References: <20250916-pm-c-flag-client-default-v2-0-3be2c5bc4d6a@kernel.org> <5307c126de5a6029a1bba744bcde32446f2ff2a6.camel@kernel.org> <1993725f-b6d6-4ec6-8fa8-3d64368040be@kernel.org> Autocrypt: addr=matttbe@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 19/09/2025 12:47, Matthieu Baerts wrote: > Hi Geliang, > > On 19/09/2025 12:15, Geliang Tang wrote: >> Hi Matt, >> >> On Tue, 2025-09-16 at 13:01 +0200, Matthieu Baerts (NGI0) wrote: >>> When servers set the C-flag in their MP_CAPABLE to tell clients not >>> to >>> create subflows to the initial address and port, clients will likely >>> not >>> use their other endpoints. That's because the in-kernel path-manager >>> uses the 'subflow' endpoints to create subflows only to the initial >>> address and port. >>> >>> The first patch fixes that, and the second one validates it. >>> >>> More details: >>> https://github.com/multipath-tcp/mptcp_net-next/issues/536 >>> >>> Please see the comment in the first patch, and don't hesitate to >>> reply :) >>> >>> Signed-off-by: Matthieu Baerts (NGI0) >> >> Thanks for this v2. >> >> LGTM! >> >> Reviewed-by: Geliang Tang > > Thank you for the review! > > Now in our tree. I decided to add them in the section for net-next: we > are close to the merge window, and linked to the comment from patch 1, > it is certainly safer to delay the backport to stable a bit. > > New patches for t/upstream: > - 0b324b1e22a0: mptcp: pm: in-kernel: usable client side with C-flag > - b366bcbbad02: "squashed" patch 1/10 in "mptcp: pm: in-kernel: usable > client side with C-flag" > - c3ca688abf65: selftests: mptcp: join: validate C-flag + def limit > - Results: fe9c68017366..8a1a30937c29 (export) I forgot the last bit: - Results: fe9c68017366..169aef388767 (export) Tests are now in progress: - export: https://github.com/multipath-tcp/mptcp_net-next/commit/df63a09d28d2808cbe27f96a1937ad904035d2d6/checks Cheers, Matt -- Sponsored by the NGI0 Core fund.