From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 4B92D4B5CD4 for ; Wed, 9 Sep 2026 10:53:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788951204; cv=none; b=bDYrIWo68F45FeyJuuxBANiZYPOL3iI5wupmeZVoSLTxfwY+2UsaDXl5dybmlVbleCkwfxk0ZOkdeTdeXWzee6vOJjJ9wnUFXSV3Kerc5yTeuN4F2J0vXa03BKoINJe3/g6c3hYBfSz3epCCdKu7oX1TdNCW35lflp4/x7jS80U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788951204; c=relaxed/simple; bh=I4XpcxIGLhsqPFZz87QB5iYFsq6CUrXs7fBV8zk1PG4=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=ImOT2USBy1qvLG1Qy2zv/nvo8VlOJMteTUuAREAz0lpQ8asMDat42VDw8t1SUP2hUE5ArOB6ABbd3x502iuAeyTIeOwvdRYas6M/y+SqD5Ia83zhz4M1iJGi7BqIxY54rjoxaZF2aQYsNa0Yqqaa7kAEKrRZymneMqxLzRB0BYo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DtyfekYQ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DtyfekYQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A3B5B1F00A3E; Wed, 9 Sep 2026 10:53:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1788951199; bh=BdChnvhbF17Db51XGAHDjy2DSRyszPPWo9/zJZ4W3dI=; h=Date:Subject:To:References:From:In-Reply-To; b=DtyfekYQYqqRQ7EuTr4QTe9UbzGYHGykHB9EAbETpzQDD0/hgss4Geo3W5dZib5HT ZeC695UvfW8NyNOB7Ozx0okTtfuniYZAMze8N/xEfa+ghY5p57acu3wfax46+XS1lG Y/IJ7rPIoEDB0rWlPNryjRzO45JxN8YHnrXzp2bOT8K3Li2zpXaz9B52M3EEK8k0wC oKhA1O552vv4vB8/Rsa00YVje37gSz4tDf74gAGRhcW4KHT+wd9vXXJdwoJgVIY71x F7SY2IcXFlbCueWFaweG5RET0axW8iJJ2w2HgwerL5b9hpnB8aKd0wVn2sfwNA2m6M fVRslR3637DLg== Message-ID: <1aa3128b-e271-4a17-b455-d413e10a675f@kernel.org> Date: Wed, 9 Sep 2026 12:53:16 +0200 Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Thunderbird Daily Subject: Re: [PATCH mptcp-next v3 0/2] mptcp: shrink struct mptcp_options_received Content-Language: fr To: quanyeyang@proton.me, MPTCP Linux References: <20260909-mptcp-shrink-opt-rx-v2-v3-0-92bb3009a665@proton.me> From: Matthieu Baerts Autocrypt: addr=matttbe@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Quanye, On 09/09/2026 04:40, Quanye Yang via B4 Relay wrote: > struct mptcp_options_received is the per-packet decode buffer used while > parsing incoming MPTCP options. It is larger than needed because several > suboptions cannot be combined. > > This series splits the FASTCLOSE key from rcvr_key, then overlaps the > remaining mutually exclusive payloads in an anonymous union. DSS and > rm_list stay outside the union. On x86_64 the structure shrinks from > 136 to 72 bytes. Now in our tree (with small changes to silence checkpatch warnings): New patches for t/upstream: - f23ba7b8cca7: mptcp: split FASTCLOSE key from rcvr_key - 6ae8ca66c6ca: mptcp: shrink struct mptcp_options_received - Results: c692d107c31c..ca7966735328 (export) Tests are now in progress: - export: https://github.com/multipath-tcp/mptcp_net-next/commit/162cbd03ff40db2152751a2fd401abd33b5ba9dc/checks Cheers, Matt -- Sponsored by the NGI0 Core fund.