From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from NAM12-BN8-obe.outbound.protection.outlook.com (mail-bn8nam12on2087.outbound.protection.outlook.com [40.107.237.87]) (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 9DFB01B87CD for ; Thu, 2 Jan 2025 21:23:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.237.87 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735852982; cv=fail; b=kDyUeO/4rSUYCzmjvAgXtha2zVJdT0zLyOi+jOhDXsMHdWSRcq/xjGovpuTilspPFoDB0j+A6xNljndBcaq3hIM8gB5J2ZbTgU1SFzlDXDE0jEHQCIqqkXtS6j2qbyjkJtkJXhWUfNzRkNGjM8MCKnpqKAdbr0L1oQaBp6998u4= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735852982; c=relaxed/simple; bh=KxU3CK8vkWX5huAuM9qCcrgsHKgHxhe6NVPldmzmo4E=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=rMWlF7H3FlyzMXrDBg7uAzSs16pe1uc2pTYZvxcAgi0vy7nvPBdWVq4h+uIe5SKWYE6yQ+1QK9h2YJDWKr6O+VC7LP+3aAEvEBdLzpuYuRlxYuArOS+vr9U6VkaADWxHi09qHRRxj2FxzMupbZSjs8sq7U9gSeLSNyo1k0gsdwc= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=scIf6zcO; arc=fail smtp.client-ip=40.107.237.87 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="scIf6zcO" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=ozTb1UGyvuFJXMWWz0F8L4FKvX+JUYs+iVagiFQdRg+SAJrHVnw+5wjAKsN+3DkHc5D5ORmI8hAb37hsTCTP/OVkfXJj3AbD6lsIuIvmjLFESEcZzXSl1QYaWk9eKtUVk3hZxKZ97TEIpb6vNYpw54oABe4MI2F4waJIZ6PVnHgCMXLo3mWM0IGbKSuz3HSNb8dqbWZMFSQnBDItSjS84OllA42JNLgpwpc3F8GKt5YMflrksFYpSLONwLpoHgzT0H0T4rCwV/mtNAhXKE/CuoGMD53IhNCMF+bsurmIqF4oikR9Nt2ogNgyl6Lf7QphfJ8ZuNBb+CMSnrBKGzjiUw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=ryl8ldvXibSQ5n41Abv9b3QulLEvie++96yMpk9v/Fw=; b=VAciWDHGvvgFry/3QgSmUZbvMFz27VXS+AeSVoPnaMlM21yKhDPUh5Ip69JEor+pXMa0oB7zaXy09OtRPBgZW1eovSU+ppWXpQnOMwhdyx9Oe+8iByIjqadKfPnW3SvT5LNn7q2OvrT7yxrJxqOGnUpXI2KtHVF5nfumEtYfYk3i6ZO0dVxv4VZZ+5JNTog9wTQwgx52ummb0VXTRgmYNM3H9IwRPATgeKaj1a82k+zu4UmEX97FtzDsnn+drQrsxbudjcmt8jQqixwfIsAvvmdEq4w3oHPKknFQv6BSMtrHCFPdy5usPflk6dkHhc52+X9YlTIco7HeXcZKEgJmtw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ryl8ldvXibSQ5n41Abv9b3QulLEvie++96yMpk9v/Fw=; b=scIf6zcOFgsyzkxtwQ6/yDwnGz/d4H+EEwjPaILsRKLVPkrIpU8cAzK113gDq2Bo438FMdxCt+bUBUS/n3Gd5ulHP50WUnGRxHhKybNzA+4aC+TaH+JmafbmV0DSAzgyJ96wSNPBjiVHIqAI1/yNQYfY0595Lxeh2UYdN0ph5ZE= Received: from SJ0PR03CA0371.namprd03.prod.outlook.com (2603:10b6:a03:3a1::16) by CY8PR12MB7268.namprd12.prod.outlook.com (2603:10b6:930:54::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8314.12; Thu, 2 Jan 2025 21:22:53 +0000 Received: from SJ5PEPF000001F0.namprd05.prod.outlook.com (2603:10b6:a03:3a1:cafe::f2) by SJ0PR03CA0371.outlook.office365.com (2603:10b6:a03:3a1::16) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8314.12 via Frontend Transport; Thu, 2 Jan 2025 21:22:53 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB03.amd.com; pr=C Received: from SATLEXMB03.amd.com (165.204.84.17) by SJ5PEPF000001F0.mail.protection.outlook.com (10.167.242.68) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8314.11 via Frontend Transport; Thu, 2 Jan 2025 21:22:53 +0000 Received: from SATLEXMB06.amd.com (10.181.40.147) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 2 Jan 2025 15:22:52 -0600 Received: from SATLEXMB03.amd.com (10.181.40.144) by SATLEXMB06.amd.com (10.181.40.147) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 2 Jan 2025 15:22:52 -0600 Received: from xsjlizhih51.xilinx.com (10.180.168.240) by SATLEXMB03.amd.com (10.181.40.144) with Microsoft SMTP Server id 15.1.2507.39 via Frontend Transport; Thu, 2 Jan 2025 15:22:51 -0600 From: Lizhi Hou To: , , CC: Lizhi Hou , , , , , , , kernel test robot Subject: [PATCH V1 4/7] accel/amdxdna: Use rcu_access_pointer for __rcu pointer Date: Thu, 2 Jan 2025 13:22:41 -0800 Message-ID: <20250102212244.1586340-4-lizhi.hou@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250102212244.1586340-1-lizhi.hou@amd.com> References: <20250102212244.1586340-1-lizhi.hou@amd.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF000001F0:EE_|CY8PR12MB7268:EE_ X-MS-Office365-Filtering-Correlation-Id: 5a49c693-ef67-44cf-030b-08dd2b739e60 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|36860700013|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?Ln7QHgS3rj7bLUJjcfazq1GzVU+mfM5C5390JLp91WD6+1z+hYyqXbzqPFg/?= =?us-ascii?Q?quERocRab4UEgiPB72dUTsZcIdc57/wCgFENWE1hIFUuZ9MizrqyBPahvOc2?= =?us-ascii?Q?04SmwLcxkH2MGDoUxLe42HtpJ8k3VuV1MpuvqAFPeLCQcSNf5iT40dE3IxKg?= =?us-ascii?Q?H1/u/BnX75mkd+lLB7I7ULJ6Brzv00zL8pjtm6/R9TQM2c9IiccIXuOFV/SM?= =?us-ascii?Q?llKc/pwerTXxnRDUc86wQYq6YQGG0rvfKqK/KgUjF3cFqlyNlswmRx25rJVJ?= =?us-ascii?Q?HLRhzhjtrkC0pC8qszdCK2eR42QdcenqtssjP5wTXkqT+y0D3fOhxpfnzIg5?= =?us-ascii?Q?NoZC9Fd0WlvxDGk+JQwTsCMDA9t2hF8e+DZwIc/46xOBpKLQSSeq8HjJAUOR?= =?us-ascii?Q?OAauc/wrpfklhsZYZ/BcTnD3DHYiwfDqPwofaf48ohVPHBEaPADjq1hgN8DE?= =?us-ascii?Q?uf3CCIcSIUP7ncKxs2wPDtj1jJkgG1tUhxBLi1jlN6k+dfdoO6Amrq+mbUt6?= =?us-ascii?Q?kO262MgCyqiZI3aNGdIZWp66aAZZZfMzXb7BeJGtQ2DKy7wZomSuOb491UhX?= =?us-ascii?Q?QPQfTjMHEZ9GlD22oayiyfSg1nfFRQ2g94TbEzFPweTXqtmRLBTfly1ujRul?= =?us-ascii?Q?LX1unO3dkdAfioYSgBytnT0ARcOWbNHOz2ftB0ZZkRD9fhQgNuVOqlEgT0J3?= =?us-ascii?Q?h2b8mx3dExdia7NWbX6jlozdwFZZ4xbMDaaiTfKhouuCjYjA1s/XlGE+A31s?= =?us-ascii?Q?tZS4rrR9UIXCNqd1l4un5LvAlyuMHCcQZJ/JpO2AN08Rc/m8mLnEPWyQG2il?= =?us-ascii?Q?vlB+hyc6ePrY6Y6/hlr9PZJxvJRhgGCLfHfHuEvunXMK/jJBDf03wDY82Gis?= =?us-ascii?Q?3tJPH5dfyZkj/eyivNPowdvEz6am5uv9j7n1XBJvl+Bi2eEI8oYVLLMSU2/K?= =?us-ascii?Q?lfayCiV2FM1lMgagAY8QZjbQSzUWdZ4wN12j0aU0q+qpxjB/RQs7/1qHWKho?= =?us-ascii?Q?Y8dYxY3IkjHPKsVZabIYsa6GW0zztHn8SR2hpqdIZoB9IkyTuZDl86NICdv6?= =?us-ascii?Q?HQdN+x7TK2zSbtuvYhZtiF8NfVM5CW6wM6gJmrw+0OGlQ22vylASeOSnV4M+?= =?us-ascii?Q?RNr07q+Gcyhg/DK1OWLA8trbJTRlUSi8CihHiWv2d7R6J7ZOQQeRN5QE8t2r?= =?us-ascii?Q?IWh8JuyKOgVlNl619J1bEzqQ/HoNshZw7fqvmgNvv45rIxs7azrrP5fETCHm?= =?us-ascii?Q?/y3zr4Ut3/ayfJFNmLezJP1TbHSvOJq8h7M32K13zG9m2xG9CBM37HzWVsqP?= =?us-ascii?Q?Gs//uvT6h7/wnzkOT8I8dBVH1CzP6wjiCna6FoQHlZQsrUX4H2FWDXVXlgnC?= =?us-ascii?Q?VQJ7/FhhFXPyreqWPqWn5AeRsnL5aC3BDusRi1HWhRwptZYh0GRJj4ZMy93D?= =?us-ascii?Q?tIteqR5RsBjdqIryf+7hAxb04rZYCWEzwemtbeycMLy8b0y9thGIla+CoNgG?= =?us-ascii?Q?1xTlKSUdFyPPfFk=3D?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(1800799024)(376014)(36860700013)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jan 2025 21:22:53.3241 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 5a49c693-ef67-44cf-030b-08dd2b739e60 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF000001F0.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY8PR12MB7268 Use rcu_access_pointer for pid in struct drm_file. This fixes sparse warning. Fixes: be462c97b7df ("accel/amdxdna: Add hardware context") Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202412311210.LfeHTzLw-lkp@intel.com/ Signed-off-by: Lizhi Hou --- drivers/accel/amdxdna/amdxdna_pci_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/accel/amdxdna/amdxdna_pci_drv.c b/drivers/accel/amdxdna/amdxdna_pci_drv.c index 194e44fc243d..97d4a032171f 100644 --- a/drivers/accel/amdxdna/amdxdna_pci_drv.c +++ b/drivers/accel/amdxdna/amdxdna_pci_drv.c @@ -61,7 +61,7 @@ static int amdxdna_drm_open(struct drm_device *ddev, struct drm_file *filp) goto put_rpm; } - client->pid = pid_nr(filp->pid); + client->pid = pid_nr(rcu_access_pointer(filp->pid)); client->xdna = xdna; client->sva = iommu_sva_bind_device(xdna->ddev.dev, current->mm); -- 2.34.1