From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-171.mta0.migadu.com (out-171.mta0.migadu.com [91.218.175.171]) (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 BDD533876B9 for ; Tue, 31 Mar 2026 09:08:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.171 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774948132; cv=none; b=dKFoUaVk10xyjoGa6x1YPAQFaNiEwPmEJJox62wvooUtY4M7cJYfQqO9bwMdauWSlVzEsLPA+h2k1hTzmDqT2mXL7KYx0XhAN/xZSbNbRx1AvZY07WFtU7WDpXBVBsnOzsBdO/faYDr7eP+qbX7SPvyqkBOjko7AzhuiKXEpWx0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774948132; c=relaxed/simple; bh=dT9UHDesKUd/FCSN+aNlKdXqFO6dRRvSVFmaGWDtBzQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=mc0bQ+l+MZVNaCS4zrQIDdnSfiK3yWGw3Gifh4f+HDWpMqnk7T8HnSuS0W2ZFEUfISgkAeLhd02Vxkl+DSiDebEqFnRdGF5Ht3hZTEclFoYZG5NYA1RXMT2TqazLNYUMBRbQtdpPVazJ/gCAfSAPnxWWBiaY++MhP9WpnLRSoNM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=iQ737ijM; arc=none smtp.client-ip=91.218.175.171 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="iQ737ijM" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1774948127; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=R5Kitshv2h9rTstk1o61PrJsjSpykhTnHavGSw4tkFE=; b=iQ737ijMhOJwJGs3cXwb6q/H60FNVopnqZPav9JmhnyOOflqBN3kkr71eFK93oWST0vsHu Un+wL6I3kcSMMYAPHR1c73t5455TsjGaqmtz0OJkejku4D1bY5/RCVkROYY6qFLl0Eorok eN1U3hJB9sknBhaiIIzKke8mbItuCZs= From: Gang Yan To: mptcp@lists.linux.dev Cc: Gang Yan Subject: [PATCH mptcp-next v2 0/2] mptcp: preserve MSG_EOR semantics in sendmsg path Date: Tue, 31 Mar 2026 17:08:07 +0800 Message-ID: Precedence: bulk X-Mailing-List: mptcp@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT From: Gang Yan Hi, Matt: With this v2 version, the packetdrill scripts also updated at https://github.com/multipath-tcp/packetdrill/pull/189. I removed the 'mptcp_eor_subflows.pkt', and made some improvements in 'mptcp_eor_no_collapse.pkt'. Thanks, Gang --- Changelog: v2: - Split the change into two independent patches: Patch 1 changes overhead to u8 (with BUILD_BUG_ON). Patch 2 implements the actual MSG_EOR handling. This split makes the series easier to review. - Added a !df->eor check in mptcp_frag_can_collapse_to() to prevent appending new data after a dfrag with the EOR flag set. - Improved comments at the new BUILD_BUG_ON check. v1: - Link: https://patchwork.kernel.org/project/mptcp/patch/20260309025431.125943-1-gang.yan@linux.dev/ Gang Yan (2): mptcp: reduce 'overhead' from u16 to u8 mptcp: preserve MSG_EOR semantics in sendmsg path net/mptcp/protocol.c | 28 +++++++++++++++++++++++++--- net/mptcp/protocol.h | 4 +++- 2 files changed, 28 insertions(+), 4 deletions(-) -- 2.43.0