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 45D1F36D4E1; Fri, 21 Nov 2025 02:50:41 +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=1763693442; cv=none; b=rhj/0/2N0JR5JYspe3WNCl4oiKu4kqGVBVyEEVjTTprfvhwubxOHkUmfSV6vgeyVw67CTU8sixedZ3dk3Fa+6j63Hk/EE9L3Ipb8pG8Dj/1sp2iZL6GQVGQf0OKkWz8N+BamKSqN2UflCnsvvS992h3I1Zr8I9UT/yrN5ROrMXg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763693442; c=relaxed/simple; bh=DJh/dq/qC5eekl0ywcj3ulTiHKyT2JlTQJWnwKJi6M8=; h=Content-Type:MIME-Version:Subject:From:Message-Id:Date:References: In-Reply-To:To:Cc; b=IUibH5ur3SrX6b2OH6WnLkm4O6fvBVjbDTJRDYjUEO+qJfPPZABcc/E9VhXEtehKejwqc00vclsrjijR9vPGYKpOYSZbKlMGouoY875uN2m0fbC0Iuus9W9Mo2MiRmRjU32HiXd7gzDFPA04+vVxW0lBu9AoY3v9unFik+S3l80= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DGDXDuAT; 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="DGDXDuAT" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B6C83C4CEF1; Fri, 21 Nov 2025 02:50:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1763693441; bh=DJh/dq/qC5eekl0ywcj3ulTiHKyT2JlTQJWnwKJi6M8=; h=Subject:From:Date:References:In-Reply-To:To:Cc:From; b=DGDXDuATJKhDHZtuiz38KC9bw14/U97V3Nm6Qxw2XsMKXUUsOiS4ndXxqLYdtBs+i USSRI1tUK2h7ZRtqHhSpljYShKnS+hGyUUYeeMc5M63ACKakDpxQBs0mbc8VsIf869 TF+L0ujnFZnzv6Ixmv5kYsmHfHofNWIIiWZF8nrmuTvHvWrWd9/uYsuUUQbpPNkW0o amYf4JocGfI/XiCx9xowSEwhyvCrarvUR2vYq46t/VxIOFzoALWsYeXu0wZQPrKM5e QMFgBLqZ1RR807rET1sp0l4myLT3U2CEZWv59fElGAGFm2Tf0QTj6a0MQcjIpAGG0N FsoA74QTY79Bw== Received: from [10.30.226.235] (localhost [IPv6:::1]) by aws-us-west-2-korg-oddjob-rhel9-1.codeaurora.org (Postfix) with ESMTP id EAE363A41003; Fri, 21 Nov 2025 02:50:07 +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 V1] veth: reduce XDP no_direct return section to fix race From: patchwork-bot+netdevbpf@kernel.org Message-Id: <176369340676.1872917.10033820911607185315.git-patchwork-notify@kernel.org> Date: Fri, 21 Nov 2025 02:50:06 +0000 References: <176356963888.337072.4805242001928705046.stgit@firesoul> In-Reply-To: <176356963888.337072.4805242001928705046.stgit@firesoul> To: Jesper Dangaard Brouer Cc: netdev@vger.kernel.org, bigeasy@linutronix.de, bpf@vger.kernel.org, eric.dumazet@gmail.com, davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, makita.toshiaki@lab.ntt.co.jp, toshiaki.makita1@gmail.com, kernel-team@cloudflare.com, mfleming@cloudflare.com, maciej.fijalkowski@intel.com, dtatulea@nvidia.com, edumazet@google.com, sdf@fomichev.me, andrew+netdev@lunn.ch, john.fastabend@gmail.com, ast@kernel.org, daniel@iogearbox.net Hello: This patch was applied to netdev/net.git (main) by Jakub Kicinski : On Wed, 19 Nov 2025 17:28:36 +0100 you wrote: > As explain in commit fa349e396e48 ("veth: Fix race with AF_XDP exposing > old or uninitialized descriptors") for veth there is a chance after > napi_complete_done() that another CPU can manage start another NAPI > instance running veth_pool(). For NAPI this is correctly handled as the > napi_schedule_prep() check will prevent multiple instances from getting > scheduled, but for the remaining code in veth_pool() this can run > concurrent with the newly started NAPI instance. > > [...] Here is the summary with links: - [net,V1] veth: reduce XDP no_direct return section to fix race https://git.kernel.org/netdev/net/c/a14602fcae17 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html