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 40643280A47; Fri, 16 May 2025 23:09:57 +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=1747436998; cv=none; b=PfD4GbsWg4wTftqIOxk3Kao9Egp4DGQYhqFY5K68n8aH7hLzOJsvTIs3qXVVBo8tHOBSI1ojLapcNrOPKZ8Foo3WvcHyyPOR1+zouxZuV7uLeegtFNNGW4P3ExhYxr/ThastZua8T7BX8ACVsQ9REDPAXuzcgUw/VS2ENSP4twI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747436998; c=relaxed/simple; bh=LQcQYcpKVXu3qdOg4z52i+UHXOm+D9/jjs69Cphdxzw=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=CGzgmr72a3V+Fq4XjS/s+l+V2vEh06edO6zDVjxz9cUCvgTs8GkXU9J4UIccMCsGSEM+06Jc2sanqsbARmXBptTCyH8fqYbRRDwhXsqt4nOVyAhOp/1Y84NjmLdHmG0Xgsj1T+f2/UcsbPV5GlVJYX0LZA0bDdKyqsdKZGv0s/s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AsADziPr; 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="AsADziPr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A5F9CC2BCB7; Fri, 16 May 2025 23:09:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1747436997; bh=LQcQYcpKVXu3qdOg4z52i+UHXOm+D9/jjs69Cphdxzw=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=AsADziPrtO96BKwygVPsZ5Np9vPjQ0X5Ic0DKhZ3kVlE8uJXWXVc3LH+iLeMv159e cX8TREqDnaTCxP+2W1eQPVFD3Yw5aacjZ/+oP1SzKVw8ZpR988QG4gkFZN0idaIipJ UTFHFSchD9I51Vma89iUhqYNbTVkXm04tSXiMYQ2kj+TiyOOTctUxfY4NpQdVP3S0V zfpFrOwsQJ2tB4MdF5a7ueUnj/6+qNzxd670+PcT3av8/3fxx5GVfd2yF3bqfkNTHQ pQ8vpolVDTTij8HiG8JVH8chYCxbTQbuW34GeFZKLymzDspMocD4hGB8x9/YJIsBc1 hL+uwNCiLp4zA== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id ADBEB3806659; Fri, 16 May 2025 23:10:35 +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 v3] net: dsa: microchip: linearize skb for tail-tagging switches From: patchwork-bot+netdevbpf@kernel.org Message-Id: <174743703450.4089123.12129589622253332288.git-patchwork-notify@kernel.org> Date: Fri, 16 May 2025 23:10:34 +0000 References: <20250515072920.2313014-1-jakob.unterwurzacher@cherry.de> In-Reply-To: <20250515072920.2313014-1-jakob.unterwurzacher@cherry.de> To: Jakob Unterwurzacher Cc: woojung.huh@microchip.com, UNGLinuxDriver@microchip.com, andrew@lunn.ch, olteanv@gmail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, Tristram.Ha@microchip.com, marex@denx.de, f.fainelli@gmail.com, quentin.schulz@cherry.de, jakob.unterwurzacher@cherry.de, stable@vger.kernel.org, Woojung.Huh@microchip.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Thu, 15 May 2025 09:29:19 +0200 you wrote: > The pointer arithmentic for accessing the tail tag only works > for linear skbs. > > For nonlinear skbs, it reads uninitialized memory inside the > skb headroom, essentially randomizing the tag. I have observed > it gets set to 6 most of the time. > > [...] Here is the summary with links: - [net,v3] net: dsa: microchip: linearize skb for tail-tagging switches https://git.kernel.org/netdev/net/c/ba54bce747fa You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html