From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=220.197.31.3 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793163779; b=bGx3Zr64MldLZnYo4nQOYbJm8xHacMFIo22UqamVsJIgocUV4NAhjltR6kRzI92h7WkH vF0yekXW++fj6Q9VNudJa63bH6c9AeKHxsyhyTI8BlQLxD+2wvs1HjpZEchh+i5mxSvth AKq3otMkQTnGpn+eM0JVqLFld6IRHCc0wYcvp/oKwUQ98R9FtxHk3YIuBACuyxHqV3PrO Xqr5Dw33Oa4QqPloG8KbOTpcXo9xE2eMpBgVrPyFS+zinQOn3I5WvrqmwX+Cu44oIgZ5o KNQ49Ar70dkhaN7P9crbnE7lf1rXXt5serbVkainTxHpERegqYuwgbmjahWAUFnHu3g== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793163779; h=DMARC-Filter:DKIM-Signature:Received:From:To:Cc:Subject:Date: Message-Id:X-Mailer:MIME-Version:Content-Transfer-Encoding: X-CM-TRANSID:X-Coremail-Antispam:X-CM-SenderInfo; bh=KZd18GbnGU4FjPw5U6MyhamIQSEO0JvH+SDs2B8FAk0=; b=PVpwKzhHBmbf8tRl9o9WihXPWn8uINpwV1M/fgoI9oRI8vyoyJ+9xlq6jdAguc5LUV3W 2X6dTayy7P91b7U9l19coItkkNvIcDIcm2ynuRoR85HVz+6ISi7O2IEoV2EgicY83FrK2 U1arTWfB4PTbTN8pR2fZdesWQ/HS2oVVCYjkg6zFK53m/MjFDAZq+hMFjH5yFiPCY68/u SwfgFcOeDto0sDysqBw0HFouZuY3Aq9j1JOcJAyaGTAbuB9oHYeuLnFyuC8NT01iHMkFe IlGI22coPPxM07yKwDPfFwxS2kwcyWml5d2ecVoMlhQeF/hytaJdzdAX67FKub9mJng== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=pass header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b="O/G3Zrj6"; arc=none smtp.remote-ip=220.197.31.3 Received: from m16.mail.163.com (m16.mail.163.com [220.197.31.3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D82AC606A31A; Wed, 28 Oct 2026 05:02:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org D82AC606A31A Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=163.com header.i=@163.com header.a=rsa-sha256 header.s=s110527 header.b=O/G3Zrj6 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=From:To:Subject:Date:Message-Id:MIME-Version; bh=KZ d18GbnGU4FjPw5U6MyhamIQSEO0JvH+SDs2B8FAk0=; b=O/G3Zrj69LGrSAGHXx 7DdCb1z1GnEuSQOSZtB22xbY0w2oLmgFqHd1QcCutmCJirCu1MzA/jtiBsgHpj/g 2syXnNWAKNlafffpjk/y4X0zcBsesMjXe77dk4M3QNuBEyoG5N2ig2rKZlwOaJC1 Ie/0gjLr3hKZRtvcS+i0Nr58c= Received: from pc.localdomain (unknown []) by gzga-smtp-mtada-g0-2 (Coremail) with SMTP id _____wD3P6n1geFqL2RoDQ--.23510S2; Wed, 28 Oct 2026 13:02:46 +0800 (CST) From: Jiale Yao To: Jason Gunthorpe , Leon Romanovsky , Parav Pandit , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org Cc: stable@vger.kernel.org Subject: [PATCH] RDMA/core: skip compat cleanup for init_net Date: Wed, 28 Oct 2026 13:02:44 +0800 Message-Id: <20261028050245.125370-1-yaojiale02@163.com> X-Mailer: git-send-email 2.34.1 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:_____wD3P6n1geFqL2RoDQ--.23510S2 X-Coremail-Antispam: 1Uf129KBjvJXoW7ZryxKr1DCFWDWw4kJry5Jwb_yoW8JFykpF 4qya90krnrGF47Ka1UWa48uFy3Jas5J34agrWDt34kuF15WFyYvryrtFy0yFWkAryUJF13 tFWDZrs5G3s3XaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDUYxBIdaVFxhVjvjDU0xZFpf9x07jYa0PUUUUU= X-CM-SenderInfo: x1dryxhdohiji6rwjhhfrp/xtbC8Baw6mrhgfZhmQAA34 rdma_dev_init_net() does not allocate an rdma_nets XArray entry or create compatibility devices for init_net. rdma_dev_exit_net() still runs the common cleanup, using the zero-initialized rnet->id to hide and erase an entry and removing compatibility devices with that ID. ID zero may belong to a non-default network namespace. Handle init_net separately on exit, mirroring the initialization path. Only tear down its netlink state and leave the XArray and compatibility devices untouched. Fixes: 1d2fedd8561d ("RDMA/core: Support netlink commands in non init_net net namespaces") Cc: stable@vger.kernel.org Signed-off-by: Jiale Yao --- drivers/infiniband/core/device.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 29af9fe860e2..74460850ccba 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -1153,6 +1153,11 @@ static void rdma_dev_exit_net(struct net *net) unsigned long index; int ret; + if (net_eq(net, &init_net)) { + rdma_nl_net_exit(rnet); + return; + } + down_write(&rdma_nets_rwsem); /* * Prevent the ID from being re-used and hide the id from xa_for_each. -- 2.34.1