From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.221.176 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794515270; b=VeDS0KMMGKi4tbWwngd/U4q7mtYRC2kXByLUr1sQqqt+muhCKJ58VnPgUmK4nztnaa9S Tjq0SIlHVBGKMFsM2ji8ZntwcUBHMnMVXjAaFpOcRS+jsf42MeBxgRqqqjggrFOkvf7Qb wnBQoiZ0YnqF40CzVvoLehbIqE/miwh0lTMvMrX31+vscRfI0UZ4KeE/MMJD87MisHHUu 4PgS4XHYX0tzPeWO3WmHAgCSjKcxonepww+XiuLJJ2sGlxqyx35+UQa3tDuLr2n7xR9Ry HwH0lS1LM65m37ws6gUcaih/UphnzgoBwCdqtvFljAJHFNwUDoaRHSg04WftiPBZPAw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794515270; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: Date:From:To:Cc:Message-ID:In-Reply-To:References:Subject: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=sqzRA9UrTkSrnhG0afFV62l+ePZ4vnCL9ohyTPGZ/WA=; b=b8c7nHC3tygYJJqZZUYTyR2ugR5L/HSuOK88z8Aqdw8wj04L6p7HpuvjhPwZGb+WIvTc XLDb6hA7rtIR8XhNG64eLN0jtMoklTf0TjEW8f03pZddYoVDrdgjkTWh5JJvxSIOB1IY/ PkmZbzCnz6ANliIk0gGGdctKhHP2b5UXDt8NKnnh5Zwyq+L5jflX2Ruu33pJ10a89GMiy CQlopZ/2iz5EbRH3x/SidnTuy0D5To8iVlqzyaFkNJ8dEtiJWf9yBs+oSMl7cmlZkYh1q kvsNEO+iHbP6xnhbo0C00qGgoumeffaPL+W5D/LYfGPyQcQQYzueNemY902ZD5rRj3g== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=FSXY6HrW; arc=none smtp.remote-ip=209.85.221.176 Received: from mail-vk1-f176.google.com (mail-vk1-f176.google.com [209.85.221.176]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7AF36606A32E for ; Thu, 12 Nov 2026 20:27:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 7AF36606A32E Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=FSXY6HrW Received: by mail-vk1-f176.google.com with SMTP id 71dfb90a1353d-5eab93a9862so93663e0c.0 for ; Thu, 12 Nov 2026 12:27:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1794515269; x=1795120069; darn=vger.kernel.org; h=content-transfer-encoding:content-type:mime-version:subject :references:in-reply-to:message-id:cc:to:from:date:from:to:cc :subject:date:message-id:reply-to:content-type; bh=sqzRA9UrTkSrnhG0afFV62l+ePZ4vnCL9ohyTPGZ/WA=; b=FSXY6HrWohav0xzx4hrdId11gMGlVIU6liGz3RGbsAhmAcNXDFu8lnG5WTM9O44qGM eD0cmTPlZsKG9NPyYgOvMYMNM4JAQYGdl+YvxzAiNmM9hAaLa9V6Q29clS98xl5BQ+xj qi5rIDGPi2Xcdu+WpFwQgBLFgF+HTRRdHDYIC2WC/L1U/5axruhO5xu0XDZnT5fksT9y SrHXB8JwuZj2zN8A6Joxqp7ick0aV4ARCpGO+H5osp5kX4dztAfO/UPwCrU/YbhcQb8e ZfBB6+fjB8Co7knW/Wr2fN3RA04egkjhu4veS/V7ewnpO3rez8Cw4+3pqBgwGwrlZCtv TvMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1794515269; x=1795120069; h=content-transfer-encoding:content-type:mime-version:subject :references:in-reply-to:message-id:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=sqzRA9UrTkSrnhG0afFV62l+ePZ4vnCL9ohyTPGZ/WA=; b=pF0OakyM5chTh2nS0qRnMb9uyJBXT6tfqmqdIT8gIKQZx0FaBxEzQgMYiMbDR6ZCbs 3F3LKGTWJx7q1b+QPWSvKkrpDh95or51rb3XsiBZY22VONTDtEQMGxSG8ihhaCAhbjC1 UIkHwtRy2EvxVqlkjypjCEGZp0LZorRsAWj1HxTwO1ryjJOg2rhaSpYTShsw3pQae48n IouZaWFspQ+avX8YbOQtKZasi+W6WmaujtXr78pStN2wQIR0gHBMM/A+jxofUES7AO36 rMYWIiJsaSayMUqgjTinrNzz+UV5Lpx+jcaef4Nhpc4QxUiqTq3KA2fnOjDP9tAgaTvI NrEQ== X-Forwarded-Encrypted: i=1; AL+hErHg8h0o1/RUzBh2/pXHdWeY+01Dp9SPq4KOjJRP/ru8kNBQk4V8aVd0Tpb90GsBcEZidWztDYo=@vger.kernel.org X-Gm-Message-State: APuU4Z8EY/wxQ6YUAmIOIQy7iNSgZqm1JT2dqCr15tHVxE8rV7XzNszn 7fHZBuynRplMJYAPJYAemDhVdfimBRrdSepQEkvp3hBd9Cwqhw4eXdPa X-Gm-Gg: AYBFou02fxNTlJ7grkV/KkuFKhQSj8+5NV93wfv7zBsXNCELG0ryTiXHwnet2e/IpXh yT7dF9tgYQ1bdoGSP+J9GvJmSSXglaZWFTgZWr4YWYgdT5qc7KKR5ooOTdrbL6xd9EeOAD859cL YAxkclaoPJWlqoLoYRffzcdoxX3azaCK6uxeAC9dtytLn4eVRe1C6eCZXZSz8p7xUi1mbUDx15y IezmXsCKSinECRYwAS4wlnBwt93GwRv64fCiv6BqvQZaYIDQGCfHwrmxElrEFV5y4XcIDtaORpn FLQO2tqWxbL8D1H1oT1KU+kPVfS95ADNkJj4sCKjY06SG7li8Xxtg00ikFfe7IHbuM8GDOpgFJo mMy87ERBfo1THXTjuNdEXw2Med3DxvjA2bnSxj32Uqb8fF1pn0qEt14KfF53Z/j0raKvdhn3FzG SvUyEsGN7ieaItjve0lZJ6e28sJhpLSWwVJs+mCzvzF6IG6cNXoprOv1y6sExsUn8R2BfOMnoum 5oDDoJ0VwSuReLM+XPQNPW/P5J5/KMhccFOY/7HJmO/c0YIh3ulAzhwm0a/6UpqnBi6sQMAGV6n sXSxXf24dA4hIiF8zmwipKnvpsbqYgU5HNejNew7EEZ0tWxj40yFc7Ms9+abZ43FMcIMtEN/U01 MAubKeOWIpOhmHa8tkb2aPfda+cY36l73Sc/ajUqQftOAqlhkx+Hc0y2DWX9Qymjg X-Received: by 2002:a05:6122:249a:b0:5ea:c727:11fa with SMTP id 71dfb90a1353d-5ee344ed328mr127187e0c.0.1794515269435; Thu, 12 Nov 2026 12:27:49 -0800 (PST) Received: from gmail.com (15.60.86.34.bc.googleusercontent.com. [34.86.60.15]) by smtp.gmail.com with ESMTPSA id a1e0cc1a2514c-99c779474ecsm367275241.2.2026.11.12.12.27.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Nov 2026 12:27:48 -0800 (PST) Date: Thu, 12 Nov 2026 15:27:48 -0500 From: Willem de Bruijn To: Jakub Kicinski , Willem de Bruijn Cc: netdev@vger.kernel.org, davem@davemloft.net, edumazet@kernel.org, pabeni@redhat.com, horms@kernel.org, steffen.klassert@secunet.com, Willem de Bruijn , stable@vger.kernel.org, Hassan Sultan Message-ID: In-Reply-To: <20261112111619.14ff70e1@kernel.org> References: <20261111221129.829218-1-willemdebruijn.kernel@gmail.com> <20261112111619.14ff70e1@kernel.org> Subject: Re: [PATCH net] net: gso: fall back to skb_segment when fraglist cannot satisfy checksum X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Jakub Kicinski wrote: > On Wed, 11 Nov 2026 17:10:33 -0500 Willem de Bruijn wrote: > > skb_segment_list() keeps the original transport headers and checksum > > state of its frag_list members. It ignores the checksum bits in features > > and does not initialize the SKB_GSO_CB() checksum state. This breaks in > > two cases: > > Does not apply? Will rebase in v2.