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dmarc=pass (p=none dis=none) header.from=seu.edu.cn Authentication-Results: smtp2.osuosl.org; dkim=pass (1024-bit key, unprotected) header.d=seu.edu.cn header.i=@seu.edu.cn header.a=rsa-sha256 header.s=default header.b=gE7NhkHE Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=45.254.49.198; helo=mail-m49198.qiye.163.com; envelope-from=getshell@seu.edu.cn; receiver= Received: from mail-m49198.qiye.163.com (mail-m49198.qiye.163.com [45.254.49.198]) by smtp2.osuosl.org (Postfix) with ESMTPS id E6C76401C2 for ; Mon, 28 Sep 2026 13:46:34 +0000 (UTC) Received: from LAPTOP-99KJFSET (unknown [36.153.54.109]) by smtp.qiye.163.com (Hmail) with ESMTP id 4f5d6f42c; Mon, 28 Sep 2026 21:41:21 +0800 (GMT+08:00) From: Hongyan Xu To: anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com Cc: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, jianhao.xu@seu.edu.cn, Hongyan Xu Subject: [PATCH net] net: e100: cancel timeout work during removal Date: Mon, 28 Sep 2026 21:41:21 +0800 Message-ID: <20260928134121.826-1-getshell@seu.edu.cn> X-Mailer: git-send-email 2.50.1.windows.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-HM-Tid: 0aa0e83fa8f803a1kunmc9b1dcc72001a2 X-HM-MType: 10 X-HM-Spam-Status: e1kfGhgUHx5ZQUpXWQgPGg8OCBgUHx5ZQUlOS1dZFg8aDwILHllBWSg2Ly tZV1koWUFITzdXWRgWCB1ZQUpXWS1ZQUlXWQ8JGhUIEh9ZQVlCGkgZVhkYQkxIQk8aHx5PQ1YeHw 5VEwETFhoSFyQUDg9ZV1kYEgtZQVlITVVKTkhVTk9VSktCWVdZFhoPEhUdFFlBWU9LSFVKS0hKT0 hMVUpLS1VKQktLWQY+ DKIM-Signature: a=rsa-sha256; b=gE7NhkHEkUjcitEgszq6ti/yUKYCEBZOVyFbgo2dhZp/CUKKSVuHYIZrfJAIVY7+3g4t8xlaLIGrsu4D0Xz/6BxYDxWR05vuoG5tp4XoH3842J5KWZyYjk4DP49t+42SkOkgcLwRq/IpH3sDVSwrGGXMq8c9iqbRzOKPxojJwvc=; c=relaxed/relaxed; s=default; d=seu.edu.cn; v=1; bh=0HgIHPw9ARGoHTinz+bKOgaAgSveGSzCt2kWpBpCIbQ=; h=date:mime-version:subject:message-id:from; X-Mailman-Approved-At: Mon, 28 Sep 2026 15:13:34 +0000 X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-wired-lan-bounces@osuosl.org Transmit timeout and command submission paths can queue tx_timeout_task. The worker accesses the MMIO mapping and netdev private state, but device removal releases both without draining a pending instance. Cancel the work after unregister_netdev(), when the network stack can no longer publish it and after any RTNL serialization used by the worker has completed. Fixes: 2acdb1e05c1a ("[PATCH] e100: Execute tx_timeout task outside interrupt context") Signed-off-by: Hongyan Xu --- drivers/net/ethernet/intel/e100.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c index 29960762e64a..710c2c30d9ed 100644 --- a/drivers/net/ethernet/intel/e100.c +++ b/drivers/net/ethernet/intel/e100.c @@ -2988,6 +2988,7 @@ static void e100_remove(struct pci_dev *pdev) if (netdev) { struct nic *nic = netdev_priv(netdev); unregister_netdev(netdev); + cancel_work_sync(&nic->tx_timeout_task); e100_free(nic); pci_iounmap(pdev, nic->csr); dma_pool_destroy(nic->cbs_pool); -- 2.50.1.windows.1