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 367B0304976 for ; Fri, 27 Mar 2026 01:50:29 +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=1774576229; cv=none; b=FhmLo3NGUVvpEbqyAgLjDRfOsMbvx50ty/uAfGN1dW04NjQOnpxcpz79kQ8KSDzDqTItfoCxgyO3VrluT3kSfIIusz3nM5mfyjebexeFyXw7nJtiCyQ5GAYpNh2b+lAN2P0FOukPfXWL9dLC8U1p6P61S267fA1KsBBitCHZD0A= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774576229; c=relaxed/simple; bh=4kiiqE3D+wDv6J6hodZDyGsVtbfDqc3mqLBoh6regB4=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=JjuR+mkwAMZznuNxWA9lwTwOqqN889Jd2WK4vo9lC08pLkUqi+Ndv85BfBAAoVmjtuOXkENhtAcuJE64x7Cnb6K7+Nd3T83ZgC70y/wy2dvUwBiZpluFXMUDGRYjJeHgMO3cjKQr/n/xeWMrn491j+IEviASKtVtih+RviZONcw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qXZ0u16V; 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="qXZ0u16V" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E6FF3C116C6; Fri, 27 Mar 2026 01:50:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774576229; bh=4kiiqE3D+wDv6J6hodZDyGsVtbfDqc3mqLBoh6regB4=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=qXZ0u16V+X586A5Gr1e66ujMPC/q07qOGhtzegAWFBvHizW0o0H1jhy3UwTgtt1YZ s9nM4cV2MrjGZkuQliJrSqSa1UHWMZeIRVFL1uNhlPDqgAh85nca2bkqyixpw5DEu8 WcVBWMM1WLhqwi8y7jb7njNfFi77DHVCK496t0AGTT94Yjw3iG95wL1f1ms53liw7E lcgGO/DZIxVGFdHjsH9juhDX/rzQqsoyJ5QbpA0ZvoSJ3V6HRABlYwadCPw+07q/Ou tsLBoPkaXag8iWnWtQ7nvuUO4eZjeTMjVJg6em661YznP3mzDVHuLrQNa2UXHbOfGl dzfHGDOzuFwMg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 7CF513809A07; Fri, 27 Mar 2026 01:50:16 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next] net: mctp: avoid copy in fragmentation loop for near-MTU messages From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177457621503.3256339.5338687081913402435.git-patchwork-notify@kernel.org> Date: Fri, 27 Mar 2026 01:50:15 +0000 References: <20260324-dev-mtu-copy-v1-1-7af6bd7027d3@codeconstruct.com.au> In-Reply-To: <20260324-dev-mtu-copy-v1-1-7af6bd7027d3@codeconstruct.com.au> To: Jeremy Kerr Cc: matt@codeconstruct.com.au, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, netdev@vger.kernel.org, yuanzm2@lenovo.com Hello: This patch was applied to netdev/net-next.git (main) by Jakub Kicinski : On Tue, 24 Mar 2026 15:19:56 +0800 you wrote: > Currently, we incorrectly send messages that are within 4 bytes (a > struct mctp_hdr) smaller than the MTU through mctp_do_fragment_route(). > This has no effect on the actual fragmentation, as we will still send as > one packet, but unnecessarily copies the original skb into a new > single-fragment skb. > > Instead of having the MTU comparisons in both mctp_local_output() and > mctp_do_fragment_route(), feed all local messages through the latter, > and add the single-packet optimisation there. > > [...] Here is the summary with links: - [net-next] net: mctp: avoid copy in fragmentation loop for near-MTU messages https://git.kernel.org/netdev/net-next/c/e1877cf62311 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html