From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 97A7EC433E6 for ; Wed, 10 Mar 2021 15:38:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6ADA764FBB for ; Wed, 10 Mar 2021 15:38:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233039AbhCJPiJ (ORCPT ); Wed, 10 Mar 2021 10:38:09 -0500 Received: from mga12.intel.com ([192.55.52.136]:29764 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233188AbhCJPhm (ORCPT ); Wed, 10 Mar 2021 10:37:42 -0500 IronPort-SDR: li0WUBl4KwTANVqPVwSFkGGN+ah2N8Bx7rqw3RMw2zqQxAJGAqbxZyTK/FGWUdvdIIDgo4vwzD 86cam2kOG6eA== X-IronPort-AV: E=McAfee;i="6000,8403,9919"; a="167764354" X-IronPort-AV: E=Sophos;i="5.81,237,1610438400"; d="scan'208";a="167764354" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Mar 2021 07:37:42 -0800 IronPort-SDR: /jwZ3eJvchUszeFKv9oHIpkXEgsTd9ZKE83agHGU5k83nVGrjd2Fxg4ayYinIBWdRM66CRp0Jo k8CsMMIkDO4g== X-IronPort-AV: E=Sophos;i="5.81,237,1610438400"; d="scan'208";a="447938072" Received: from shsi6026.sh.intel.com (HELO localhost) ([10.239.147.88]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Mar 2021 07:37:40 -0800 From: shuo.a.liu@intel.com To: Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, lkp@intel.com, Shuo Liu Subject: [PATCH] virt: acrn: Correct type casting of argument of copy_from_user() Date: Wed, 10 Mar 2021 23:37:08 +0800 Message-Id: <20210310153708.17451-1-shuo.a.liu@intel.com> X-Mailer: git-send-email 2.28.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Shuo Liu hsm.c:336:50: warning: incorrect type in argument 2 (different address spaces) hsm.c:336:50: expected void const [noderef] __user *from hsm.c:336:50: got void * This patch fixes above sparse warning. Fixes: 3d679d5aec64 ("virt: acrn: Introduce interfaces to query C-states and P-states allowed by hypervisor") Reported-by: kernel test robot Signed-off-by: Shuo Liu --- drivers/virt/acrn/hsm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/virt/acrn/hsm.c b/drivers/virt/acrn/hsm.c index 1f6b7c54a1a4..37cc7acd7df8 100644 --- a/drivers/virt/acrn/hsm.c +++ b/drivers/virt/acrn/hsm.c @@ -333,7 +333,7 @@ static long acrn_dev_ioctl(struct file *filp, unsigned int cmd, acrn_ioreq_request_clear(vm); break; case ACRN_IOCTL_PM_GET_CPU_STATE: - if (copy_from_user(&cstate_cmd, (void *)ioctl_param, + if (copy_from_user(&cstate_cmd, (void __user *)ioctl_param, sizeof(cstate_cmd))) return -EFAULT; -- 2.28.0