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=1792797010; b=XroEU0xLGh3bX6LWp2vFf9LSMq6v0yRFWOy8mQQ//fpakf1aAhxklPClMNeDjc6igREK jp1tD3QsQN/ag3Mmvp3JrNq3BgYkUv2Hnszf3ctl6nbWe/sAZwCj8c4Rw2m4QjzN4aNej YN/lVv+HCLEhJCeWcJVUwqraBqhlk9tgAr7EzrLD6BXPxtLdOweR3DaYMXLFeSxjUQnAT vvAkJBpkMn4l5NIL5AN7EtvprYT5nqz3kva41km+DMc3fneVjL42uyqp4VryrW2cDj/ej 5LbxxM2v3tsBSZMl6bXXe673aqnqqXx8zGuwVzaiXh8LrjjasLCjyGIcMIrTdOPQzkw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792797010; h=Received:DKIM-Signature:Received:Content-Type:MIME-Version: Content-Transfer-Encoding:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; bh=MIrAFhWXAPIb7lEuheQJc4PPEjxhRvQnGG7L3QhTTS0=; b=3CFm6r63lDg0csYzU9ZfNB1ZTfiffce+/M49PqFwRjcbOBC+RKtKO6IeK0/Mu4FBY03S KrbO7vQeT8oDfOxZntzCZ0P5sPMWvp0WC5FTH60huVfDjK06MA1c/ZIi7c3KfxnPMJFmq Mg4qWCCjkeIirSSMzm02t6rSN7pWLGNX4oD+PSc7jPolahzVEOA7gYGJVLVpdJRLe1eHk ZMh4CDxK2t2bfK1LvqmsP9K6KHffi1qn4NEHc+R9r1dmGiFOvqepk1WEBKfO4ORElOznv +XZFHpiCzaIFkhUb5EjK+Ix8AkV4GFio88h6m1NtMGjs2YhmU4WV5XXCTPJ09P7yUFw== 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=Tk1mxgaO; 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 ABB9C606A334; Fri, 23 Oct 2026 23:10:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Tk1mxgaO Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4CA6B1F031E2; Fri, 23 Oct 2026 23:10:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792797009; bh=MIrAFhWXAPIb7lEuheQJc4PPEjxhRvQnGG7L3QhTTS0=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=Tk1mxgaOl0SDRmoaEBsgEEIIES2z/ZAHOArtAag04sG953btzUd5zLyLbGYJqZe4u yp7qeKz+bpBYAmJW2lf6632XWrKqdroOrMlCxjwReRd1EZ9MzHwqVO3r5PoTSI3Hdk JI0ct+DgU3jLWF45gWWYTzoNPjFvT2zQTiKB5wJ2ZkiEqvxETct7nyZT2pMrTlQZTi o8otwmSe6xepkfSHQ6qPJbDsQU3UmLKrJ8LJaopLuQ2aZ37vLKfzPd0j5fFAmvuUq6 PlGWRZX2P2mZ/rKa74x4pI3W/rCy0oDT2saDrxjFXrcUL0xoHQOAcEjw26NYsKXpoK rrZ/hfCIXtiCg== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 4449F391B16B; Fri, 23 Oct 2026 23:10:09 +0000 (UTC) Content-Type: text/plain; charset="utf-8" X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net] veth: fix stale peer max_mtu on XDP program replacement From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179279700781.1316845.9472584301770180599.git-patchwork-notify@kernel.org> Date: Fri, 23 Oct 2026 23:10:07 +0000 References: <20261020020147.790274-1-yanxia@cmss.chinamobile.com> In-Reply-To: <20261020020147.790274-1-yanxia@cmss.chinamobile.com> To: Xia Yan Cc: netdev@vger.kernel.org, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, sdf@fomichev.me, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, lorenzo@kernel.org, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Tue, 20 Oct 2026 10:01:47 +0800 you wrote: > veth_xdp_set() calculates the peer MTU limit from the incoming program's > XDP fragment capability, but only stores it when no program was attached. > Replacing a program with one having a different fragment capability > therefore leaves the peer's max_mtu stale. > > Replacing a regular program with an xdp.frags program keeps rejecting > otherwise valid jumbo MTUs. The opposite replacement leaves a larger > limit in place and permits MTUs which a fresh attachment of the regular > program would reject. > > [...] Here is the summary with links: - [net] veth: fix stale peer max_mtu on XDP program replacement https://git.kernel.org/netdev/net/c/c955325db639 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html