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 EF63127E041 for ; Fri, 19 Sep 2025 10:47:50 +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=1758278871; cv=none; b=H+hBLIcggM7wK028D7Ano1jXmb3ZmLkec43lsp5jBUSWMyAyYlq5Z2ZA+lauEbcaDDLgZJZ/49kOFwpnNcKGhxDGBiUJK3mGbR58rwHHiZQOjDXuDxZ+pbmSyFgQANm2aWuYZES0wBfDX3lOmEj+1d3cYg8+Cam9Y+UE2SWiX2U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758278871; c=relaxed/simple; bh=ySfQpZq2X1cgauOEDb0xxdTkDOn1rcysrKktm7vYEF8=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=n0a1jw7gik29Kzu7fVzBFplCyearWKDaw9q9vBfVGT8OQGF7EO6cIJ6T9nE5RrqGg4fB4j4aRDs/bD7aMyvHviqJ83SDZWQHqyjYGU77eh51piAonn7wfNsSvGF01w3itmCUcMBwC6XslOkKikhfZ8bU0f5BwViJwyvTr6GokS4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BOCI5gaC; 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="BOCI5gaC" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E9834C4CEF5; Fri, 19 Sep 2025 10:47:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758278870; bh=ySfQpZq2X1cgauOEDb0xxdTkDOn1rcysrKktm7vYEF8=; h=Date:Subject:To:References:From:In-Reply-To:From; b=BOCI5gaCj4kxhx7OkCMSAoSTR1iFlskm0QftUAG7FUCMSpk3/gMo0UR5eIOmD2d7H +6v//b4D4uy20pL4H1hBhTuway+DuKVi7Tig5q38GkRqYpFloVPbVdjkl2yTDavv1J ZweYFBWgSbmPWwCQyVEe0ukdAEedidbRsS7P19vdajtSUP+ujNcHVWFblvpaGzLCos 2B4oPH1MWsSuAg6mJdOB1xNgvPck77xT4f9jQRL80W+s7WoNw5Tj+ijvhUSEzp7/dY JLgGjdzt6uoTeGese6RI1nhHTzgtM4PJ8TKNtZhYflUe7Qm5TEMqL4X9QFTK+a+wFH MVPkkwwwHdvZQ== Message-ID: <1993725f-b6d6-4ec6-8fa8-3d64368040be@kernel.org> Date: Fri, 19 Sep 2025 12:47:48 +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 To: Geliang Tang , MPTCP Upstream References: <20250916-pm-c-flag-client-default-v2-0-3be2c5bc4d6a@kernel.org> <5307c126de5a6029a1bba744bcde32446f2ff2a6.camel@kernel.org> From: Matthieu Baerts Autocrypt: addr=matttbe@kernel.org; keydata= xsFNBFXj+ekBEADxVr99p2guPcqHFeI/JcFxls6KibzyZD5TQTyfuYlzEp7C7A9swoK5iCvf YBNdx5Xl74NLSgx6y/1NiMQGuKeu+2BmtnkiGxBNanfXcnl4L4Lzz+iXBvvbtCbynnnqDDqU c7SPFMpMesgpcu1xFt0F6bcxE+0ojRtSCZ5HDElKlHJNYtD1uwY4UYVGWUGCF/+cY1YLmtfb WdNb/SFo+Mp0HItfBC12qtDIXYvbfNUGVnA5jXeWMEyYhSNktLnpDL2gBUCsdbkov5VjiOX7 CRTkX0UgNWRjyFZwThaZADEvAOo12M5uSBk7h07yJ97gqvBtcx45IsJwfUJE4hy8qZqsA62A nTRflBvp647IXAiCcwWsEgE5AXKwA3aL6dcpVR17JXJ6nwHHnslVi8WesiqzUI9sbO/hXeXw TDSB+YhErbNOxvHqCzZEnGAAFf6ges26fRVyuU119AzO40sjdLV0l6LE7GshddyazWZf0iac nEhX9NKxGnuhMu5SXmo2poIQttJuYAvTVUNwQVEx/0yY5xmiuyqvXa+XT7NKJkOZSiAPlNt6 VffjgOP62S7M9wDShUghN3F7CPOrrRsOHWO/l6I/qJdUMW+MHSFYPfYiFXoLUZyPvNVCYSgs 3oQaFhHapq1f345XBtfG3fOYp1K2wTXd4ThFraTLl8PHxCn4ywARAQABzSRNYXR0aGlldSBC YWVydHMgPG1hdHR0YmVAa2VybmVsLm9yZz7CwZEEEwEIADsCGwMFCwkIBwIGFQoJCAsCBBYC AwECHgECF4AWIQToy4X3aHcFem4n93r2t4JPQmmgcwUCZUDpDAIZAQAKCRD2t4JPQmmgcz33 EACjROM3nj9FGclR5AlyPUbAq/txEX7E0EFQCDtdLPrjBcLAoaYJIQUV8IDCcPjZMJy2ADp7 /zSwYba2rE2C9vRgjXZJNt21mySvKnnkPbNQGkNRl3TZAinO1Ddq3fp2c/GmYaW1NWFSfOmw MvB5CJaN0UK5l0/drnaA6Hxsu62V5UnpvxWgexqDuo0wfpEeP1PEqMNzyiVPvJ8bJxgM8qoC cpXLp1Rq/jq7pbUycY8GeYw2j+FVZJHlhL0w0Zm9CFHThHxRAm1tsIPc+oTorx7haXP+nN0J iqBXVAxLK2KxrHtMygim50xk2QpUotWYfZpRRv8dMygEPIB3f1Vi5JMwP4M47NZNdpqVkHrm jvcNuLfDgf/vqUvuXs2eA2/BkIHcOuAAbsvreX1WX1rTHmx5ud3OhsWQQRVL2rt+0p1DpROI 3Ob8F78W5rKr4HYvjX2Inpy3WahAm7FzUY184OyfPO/2zadKCqg8n01mWA9PXxs84bFEV2mP VzC5j6K8U3RNA6cb9bpE5bzXut6T2gxj6j+7TsgMQFhbyH/tZgpDjWvAiPZHb3sV29t8XaOF BwzqiI2AEkiWMySiHwCCMsIH9WUH7r7vpwROko89Tk+InpEbiphPjd7qAkyJ+tNIEWd1+MlX ZPtOaFLVHhLQ3PLFLkrU3+Yi3tXqpvLE3gO3LM7BTQRV4/npARAA5+u/Sx1n9anIqcgHpA7l 5SUCP1e/qF7n5DK8LiM10gYglgY0XHOBi0S7vHppH8hrtpizx+7t5DBdPJgVtR6SilyK0/mp 9nWHDhc9rwU3KmHYgFFsnX58eEmZxz2qsIY8juFor5r7kpcM5dRR9aB+HjlOOJJgyDxcJTwM 1ey4L/79P72wuXRhMibN14SX6TZzf+/XIOrM6TsULVJEIv1+NdczQbs6pBTpEK/G2apME7vf mjTsZU26Ezn+LDMX16lHTmIJi7Hlh7eifCGGM+g/AlDV6aWKFS+sBbwy+YoS0Zc3Yz8zrdbi Kzn3kbKd+99//mysSVsHaekQYyVvO0KD2KPKBs1S/ImrBb6XecqxGy/y/3HWHdngGEY2v2IP Qox7mAPznyKyXEfG+0rrVseZSEssKmY01IsgwwbmN9ZcqUKYNhjv67WMX7tNwiVbSrGLZoqf Xlgw4aAdnIMQyTW8nE6hH/Iwqay4S2str4HZtWwyWLitk7N+e+vxuK5qto4AxtB7VdimvKUs x6kQO5F3YWcC3vCXCgPwyV8133+fIR2L81R1L1q3swaEuh95vWj6iskxeNWSTyFAVKYYVskG V+OTtB71P1XCnb6AJCW9cKpC25+zxQqD2Zy0dK3u2RuKErajKBa/YWzuSaKAOkneFxG3LJIv Hl7iqPF+JDCjB5sAEQEAAcLBXwQYAQIACQUCVeP56QIbDAAKCRD2t4JPQmmgc5VnD/9YgbCr HR1FbMbm7td54UrYvZV/i7m3dIQNXK2e+Cbv5PXf19ce3XluaE+wA8D+vnIW5mbAAiojt3Mb 6p0WJS3QzbObzHNgAp3zy/L4lXwc6WW5vnpWAzqXFHP8D9PTpqvBALbXqL06smP47JqbyQxj Xf7D2rrPeIqbYmVY9da1KzMOVf3gReazYa89zZSdVkMojfWsbq05zwYU+SCWS3NiyF6QghbW voxbFwX1i/0xRwJiX9NNbRj1huVKQuS4W7rbWA87TrVQPXUAdkyd7FRYICNW+0gddysIwPoa KrLfx3Ba6Rpx0JznbrVOtXlihjl4KV8mtOPjYDY9u+8x412xXnlGl6AC4HLu2F3ECkamY4G6 UxejX+E6vW6Xe4n7H+rEX5UFgPRdYkS1TA/X3nMen9bouxNsvIJv7C6adZmMHqu/2azX7S7I vrxxySzOw9GxjoVTuzWMKWpDGP8n71IFeOot8JuPZtJ8omz+DZel+WCNZMVdVNLPOd5frqOv mpz0VhFAlNTjU1Vy0CnuxX3AM51J8dpdNyG0S8rADh6C8AKCDOfUstpq28/6oTaQv7QZdge0 JY6dglzGKnCi/zsmp2+1w559frz4+IC7j/igvJGX4KDDKUs0mlld8J2u2sBXv7CGxdzQoHaz lzVbFe7fduHbABmYz9cefQpO7wDE/Q== Organization: NGI0 Core In-Reply-To: <5307c126de5a6029a1bba744bcde32446f2ff2a6.camel@kernel.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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) Cheers, Matt -- Sponsored by the NGI0 Core fund.