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 3B9AE4AAC4D; Wed, 30 Sep 2026 23:40:07 +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=1790811609; cv=none; b=QHsHQgbjxZMpzbKFjDbNdZGBQRj2LI2xGYOUmDCpl3ddPux/wUItwIC6f1LouE6mPhcWAtPVaJSTEziVLFtkkibrELu4AQ1yQxE4jrm+jub+Yn1W9ntg6EO8PP7ci5g/WYweI4uOk//zrJNzIp2wc8tcHnu1N/H8jzQk+mL5CBo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790811609; c=relaxed/simple; bh=MuJJzogIWf+b8hhSHabl/t2tZ67qmfqYX9MKSpRSRIA=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=J4OWWIYEJ979HyTevaS2rzPB+bzgDrX6Ne1RkRIEGM8dI08BzP8Mzb+voQY+IFFvJEFXuVQcHEW2EzQ2Yw5zJ5jr1HqE551UCwQXarwP6lIXERlSx7HT2BTl3zTzTXQcREYyLqNPcqu1FTni1MigGOX72JuIVqC68bm2DaZlY1k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=OLT364Aq; 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="OLT364Aq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B496C1F000FF; Wed, 30 Sep 2026 23:40:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790811607; bh=4snq0PtxiqOoej1Z7MUMqVQjAW3Bf/CxiJhsKpu6mNk=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=OLT364Aq0g2Bav5DIbQYk5cQxdaocKIiQRJRGmnF594v5Vvks4uesOjfax2IlSrSE Rmlj0Or4xsyr0mm7JOqeLA+SbEvg5Uh7TXGTMtmqXxcDR0lpao5NGYXcQxzAVB+q/b n06oOBVYeFmSq8AOiC37vfzsc8YjnKIT6DRql7kwCQGhtObw2OuoDmQc5aB7CPDH2b NPcUoDx7j4vUfGirsCtfZYxut1dZQJ/GuoxxVoi257HulsjkwfM3WVOmDJtTgUlKD1 aqNYXkK5x4Qo1brKSaf4nHc7tODFZLymaIiLyvufiHF0TNkUEHhNrMf5YUVC+L4QR3 q+jie4Z/eWxuw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id AA31139EAF51; Wed, 30 Sep 2026 23:40:07 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net-next v3] seg6: reallocate the skb head on L2 encapsulation only when needed From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179081160653.2175258.10702581891378114546.git-patchwork-notify@kernel.org> Date: Wed, 30 Sep 2026 23:40:06 +0000 References: <20260925-seg6-l2cow-v3-1-fc83821542a7@gmail.com> In-Reply-To: <20260925-seg6-l2cow-v3-1-fc83821542a7@gmail.com> To: Yuya Kusakabe Cc: andrea.mayer@uniroma2.it, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Hello: This patch was applied to netdev/net-next.git (main) by Jakub Kicinski : On Fri, 25 Sep 2026 23:49:53 +0900 you wrote: > The L2 encapsulation modes of the seg6 lwtunnel reallocate the skb head > on every packet, where the IPv6 encapsulation modes reallocate only when > they have to. Ask for the whole encapsulation up front instead, so that > the reallocation happens at most once and only when the headroom really > is too small: > > skb->mac_len + sizeof(struct ipv6hdr) + ipv6_optlen(tinfo->srh) > + dst_dev_overhead(cache_dst, skb) > > [...] Here is the summary with links: - [net-next,v3] seg6: reallocate the skb head on L2 encapsulation only when needed https://git.kernel.org/netdev/net-next/c/bf515c9fae87 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html