From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794510980; b=5Q8URmk6UvTA46Zg6frvlX72m5A7KPq0DUIdR1JtYbVKkx2V80uQYI4Nm6apxRysRNI1 YFR03U2g/kJWeEhGm0tJ/TeM05j88mjjVxZVZJUVzp1plA6S4jvL59POCOy19vXt5Ril0 /ILg4+BfcoGo/LYb0ldvG53oaYVoEvRw6E37ZNq6N18tsJ+oVC62rYDJLadT87MXdNGz2 lINAuhlnR2GDjh4NKNqnenW5FQ8vO3YFJXXCq1jcDd5ZddXRNP5mgGUGO+WQmAQN0TTHT ksbXb8SGCISCTv9Lz8N1keJ3S9O4JvrEFlMmvxD7Plui8mEGx1QPgsy33JAbZZYFTCA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794510980; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=5I8qafzlKyx+3HTz4plEHXvJyZxM7HeqQJIVJQlIMdI=; b=UeJ1gCM1VZYnzIph2B+L2VphDAGoLgzKXNc8IoWdlcgOcKE4Ouar4V2EwT/fwjzWGXsp 7em8bYV2dIUboZM5IOxudmgApln2vjOhhoHnIjJ0vxKX+1rqtagr1/ls9hX/CBYfySaPz kRZYfBijUS3kzQxKinORbMQiUhw+hLy/t5mRH+7gQqpMF7K33mQGR+Tn/+yRjLT4ghJ1B 48fIYTepjbOjpfZuDUwC6qa+tZPHRS11owcmvdJfpmzo+OYn5gnKv6EbzL8KW6eVAkIfF Pc8eX4V1UIkn+//zW+nY/2q8oGRKcrL+oR4igKBq2hc5GSERu3WDD2vR9pspjdN23Ew== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=SFDBRs92; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A74EC606A882; Thu, 12 Nov 2026 19:16:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=SFDBRs92 Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2E1E31F000C4; Thu, 12 Nov 2026 19:16:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794510980; bh=5I8qafzlKyx+3HTz4plEHXvJyZxM7HeqQJIVJQlIMdI=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=SFDBRs92QHDYf0eltURydgpR9InQUAnq3GMXkCzw8gGV7AuZc8sAui1RZMT55ZLQ9 egaZmT1m3nvgkMT7wKQ+Vk1Pxt5h5Aod0hwLV61COc234bqOTAu2bZqVzNcWkbgCy9 KDcZImxPz3YVGcHzEmQ1gZg/3GOs85YYdvj3W7xKRgw1qBkbIJBwhskXVwo4LJKMpw o6vY6q9gOHcp5IAsgshd/NeEa/3a/ylbSB3mKZj3zv49qDhNjUMmIF0Pc3caO362Sv V5SwpOSN6piOTyNaexGjYNvSWFRSOLetXUaqRy7eOSx+xhBV9/2QDAZSql95TO0ClK zH1F7glZy+jEw== Date: Thu, 12 Nov 2026 11:16:19 -0800 From: Jakub Kicinski To: 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 Subject: Re: [PATCH net] net: gso: fall back to skb_segment when fraglist cannot satisfy checksum Message-ID: <20261112111619.14ff70e1@kernel.org> In-Reply-To: <20261111221129.829218-1-willemdebruijn.kernel@gmail.com> References: <20261111221129.829218-1-willemdebruijn.kernel@gmail.com> X-Mailing-List: netdev@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=US-ASCII Content-Transfer-Encoding: 7bit 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? -- pw-bot: cr