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 4559F4322EC for ; Wed, 30 Sep 2026 21:00:06 +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=1790802008; cv=none; b=NBlRu/EL95bnEvGDBMcmMfiz++e0jflvWD40a9jzevOudFg3MAiXKqAzpLp3m4AfsghPwldbQWoEfPSH6WqMmlprPpzpT9SGGiBnrY8cEHtgepeiHlCwCeIskgxAWHxyzlcfbvgpbNdyQPBmZ/myJ9KyHuZOpc/SywCuaSlMGiE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790802008; c=relaxed/simple; bh=7wnXTL5oBnjKfeO41yiK0LC+yzruF9F3rjIgCpybGA4=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=mO8lLp29z0aaGGwNvRftlbedtzRfA7W1MptqUoFgt+NsIX9HiUnLQ7cfFEK2lSqQlyLrTddAdpXbeg6r6YsuAEQPmn3J2vzJF50s4ettR2OJNcxynfyJgS3drqS9c942jVw4TXByKEcJqVMsw4oAdjpQFGLfmJxdTeElOEirVqY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fRtAmS0g; 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="fRtAmS0g" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C38611F000FF; Wed, 30 Sep 2026 21:00:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790802006; bh=bbJOH5MGo9TZz+i2RaD+GfBXQ3FxVajZ/B4vgwTYEWk=; h=Subject:From:Date:References:In-Reply-To:To:Cc; b=fRtAmS0g5YqNaxQnhC4bxjGw7zZaHW0a83t8kWDIJYWRUWHh/hogtSdenfMWD1VOq +wk5KO0+aC50lnDboqFif5fbkWgfJU3wisOQ9/bj+c3ccbz/rPIw+B+9C26kdon+n8 IVRvgY8e+FVHBr5134MD9/lp9KRZ/quu5+I8kTA+OMUMUHFzxiOqPyRi/vzihNnGy9 b6A4/OIKs93LTkAX7LFlIvlAhAutgCkC9zV7ZekJRA4DhlDnPd5o+wKdL6yhLIyFEo eSIKufIj2wzDjBDqNTIX0kEr2fSxSIdFwMbCQD2u90p1uK3NKfNfUQW28RFg+Sr4R6 qePHWl1Qnoj8w== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id B44263A56772; Wed, 30 Sep 2026 21:00:06 +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 v3 net] tcp: preserve timestamps across receive queue collapse From: patchwork-bot+netdevbpf@kernel.org Message-Id: <179080200526.2127741.7368137316557148808.git-patchwork-notify@kernel.org> Date: Wed, 30 Sep 2026 21:00:05 +0000 References: <20260924152529.5689-1-kerneljasonxing@gmail.com> In-Reply-To: <20260924152529.5689-1-kerneljasonxing@gmail.com> To: Jason Xing Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, horms@kernel.org, willemb@google.com, kuniyu@google.com, netdev@vger.kernel.org Hello: This patch was applied to netdev/net-next.git (main) by Jakub Kicinski : On Thu, 24 Sep 2026 23:25:29 +0800 you wrote: > When tcp_collapse() rebuilds skbs under memory pressure, the copy > process doesn't include the right tstamp and hwtstamp from the > old skb. And memcpy(nskb->cb, skb->cb, ...) copies has_rxtstamp, > but nskb->tstamp and hwtstamps are left at zero, so > tcp_recv_timestamp() ends up emitting no cmsg at all. > > In net timestamping case, if such an skb happens to be the last > one consumed in a recvmsg() call, the application receives no RX > timestamp for that call. > > [...] Here is the summary with links: - [v3,net] tcp: preserve timestamps across receive queue collapse https://git.kernel.org/netdev/net-next/c/1a924ab28fb5 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html