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Received: from sslproxy01.your-server.de ([78.46.139.224]) by www62.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96.2) (envelope-from ) id 1vE9JR-0001Wb-1M; Wed, 29 Oct 2025 17:46:17 +0100 Received: from localhost ([127.0.0.1]) by sslproxy01.your-server.de with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1vE9JQ-00051F-1R; Wed, 29 Oct 2025 17:46:16 +0100 Message-ID: Date: Wed, 29 Oct 2025 17:46:15 +0100 Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next v3 02/15] net: Implement netdev_nl_bind_queue_doit To: David Wei , Jakub Kicinski Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, davem@davemloft.net, razor@blackwall.org, pabeni@redhat.com, willemb@google.com, sdf@fomichev.me, john.fastabend@gmail.com, martin.lau@kernel.org, jordan@jrife.io, maciej.fijalkowski@intel.com, magnus.karlsson@intel.com, toke@redhat.com, yangzhenze@bytedance.com, wangdongdong.6@bytedance.com References: <20251020162355.136118-1-daniel@iogearbox.net> <20251020162355.136118-3-daniel@iogearbox.net> <20251023192842.31a2efc0@kernel.org> <2f2333fb-707a-4d21-a32d-776489ddc343@davidwei.uk> Content-Language: en-US From: Daniel Borkmann Autocrypt: addr=daniel@iogearbox.net; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Virus-Scanned: Clear (ClamAV 1.0.9/27807/Wed Oct 29 10:50:39 2025) On 10/28/25 11:41 PM, David Wei wrote: > On 2025-10-23 19:28, Jakub Kicinski wrote: >> On Mon, 20 Oct 2025 18:23:42 +0200 Daniel Borkmann wrote: >>> +void netdev_rx_queue_peer(struct net_device *src_dev, >>> +              struct netdev_rx_queue *src_rxq, >>> +              struct netdev_rx_queue *dst_rxq) >>> +{ >>> +    netdev_assert_locked(src_dev); >>> +    netdev_assert_locked(dst_rxq->dev); >>> + >>> +    netdev_hold(src_dev, &src_rxq->dev_tracker, GFP_KERNEL); >> >> Isn't ->dev_tracker already used by sysfs? > > You're right, it is. Can netdevice_tracker not be shared? Given this is not common practice, I've added a peer_tracker (given this is also only enabled / takes space on debug kernels). Thanks, Daniel