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 B1B2937BE60; Thu, 21 May 2026 09:49:55 +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=1779356996; cv=none; b=f8MoV2fHnu9Vb8yjNam2XpKiWwmrBpEhkpmFFuCLoeMeoqjuaueTjekhkTZ3iWbwhHMWXppRW1raiYL1Iy0BmRwhxqluIBy8dLJm86p9a/eg/26pr76opxDtzjrKt4iekQmMvd8mv3cdF4Eu68gU6qwTxWqfK5ZD9Hz/g8foDwE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779356996; c=relaxed/simple; bh=HTKoM62XzHAkVnGdFSshqg8uG1E2BDoZM80JQvmfFhE=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=oG6Ux1F8dMZ9f4QErpqAhX2QX+x9BbJx0mEmRvgoEJyZ2gEPAzaEoPudjMiwvw5/ujiXPFhUcOiJuLN4cKfKYWAlexvz/iCjyHiwHQUZV3I/PAY90GOdIA8XKchv9WNDZYPWx4SdY/Ow9a+xWYNyutZu+rt9r8fYLPZvXORjcRM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DRYbInq/; 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="DRYbInq/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5D2251F000E9; Thu, 21 May 2026 09:49:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779356995; bh=QX9iO5UfA8lFU9S3G/bX3+/LNHn4Gm1KTOMQQAuGHeM=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=DRYbInq/PiPR0vAKiZhQWKeeqo9IXTLJBybKkhLrQDxKjxzHQrhjC78sovy9PO3Gu 0pGjZJfx/+p7RIYm/1fdpI/BJKxyPF/4yQqTHSn4C2mXhP5dl9xxR3aon3cF92ohcu J+QGbnutifrEjyzao/qNtNIgBE5BzUlHYxuZO1gAgf2vqpAUb25l0g03+5HIf8QzZ6 O8kNZhNOcjc7S6oUFsarUQb1Gx/rK2VB7qMB3E4lv51Tp87qVH8JgUJJZty7GYKdEJ dsrS+IRWCOI+AzWUYnA/P4iLyAwpcKY2EdFf4mOI68/ubNsUTXJzdFXpKX+Xk+wXCm UNVa22pYXumNQ== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id 9396C3930D21; Thu, 21 May 2026 09:50:06 +0000 (UTC) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH net v5] net: skbuff: propagate shared-frag marker through frag-transfer helpers From: patchwork-bot+netdevbpf@kernel.org Message-Id: <177935700540.4004798.18308856421484516932.git-patchwork-notify@kernel.org> Date: Thu, 21 May 2026 09:50:05 +0000 References: In-Reply-To: To: Hyunwoo Kim Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, kerneljasonxing@gmail.com, kuniyu@google.com, mhal@rbox.co, jiayuan.chen@linux.dev, steffen.klassert@secunet.com, ben@decadent.org.uk, herbert@gondor.apana.org.au, dsahern@kernel.org, sultan@kerneltoast.com, sd@queasysnail.net, malin89@huawei.com, tanjingguo@huawei.com, aaron1esau@gmail.com, netdev@vger.kernel.org, stable@vger.kernel.org Hello: This patch was applied to netdev/net.git (main) by Paolo Abeni : On Sat, 16 May 2026 07:28:53 +0900 you wrote: > Two frag-transfer helpers (__pskb_copy_fclone() and skb_shift()) fail > to propagate the SKBFL_SHARED_FRAG bit in skb_shinfo()->flags when > moving frags from source to destination. __pskb_copy_fclone() defers > the rest of the shinfo metadata to skb_copy_header() after copying > frag descriptors, but that helper only carries over gso_{size,segs, > type} and never touches skb_shinfo()->flags; skb_shift() moves frag > descriptors directly and leaves flags untouched. As a result, the > destination skb keeps a reference to the same externally-owned or > page-cache-backed pages while reporting skb_has_shared_frag() as > false. > > [...] Here is the summary with links: - [net,v5] net: skbuff: propagate shared-frag marker through frag-transfer helpers https://git.kernel.org/netdev/net/c/48f6a5356a33 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html