From patchwork Mon Jun 20 12:17:02 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Wang, Zhi A" X-Patchwork-Id: 9187287 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 833C06075F for ; Mon, 20 Jun 2016 12:17:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 651F024B5E for ; Mon, 20 Jun 2016 12:17:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5A12A2766D; Mon, 20 Jun 2016 12:17:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E55F24B5E for ; Mon, 20 Jun 2016 12:17:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E7A076E0EC; Mon, 20 Jun 2016 12:17:09 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id C90766E0EC for ; Mon, 20 Jun 2016 12:17:07 +0000 (UTC) Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga103.jf.intel.com with ESMTP; 20 Jun 2016 05:17:07 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos; i="5.26,498,1459839600"; d="scan'208"; a="1001504082" Received: from zhiwang1-mobl4.ccr.corp.intel.com (HELO inno-VirtualBox.fi.intel.com) ([10.237.66.161]) by orsmga002.jf.intel.com with ESMTP; 20 Jun 2016 05:17:06 -0700 From: Zhi Wang To: intel-gfx@lists.freedesktop.org, chris@chris-wilson.co.uk Date: Mon, 20 Jun 2016 08:17:02 -0400 Message-Id: <1466425022-3709-1-git-send-email-zhi.a.wang@intel.com> X-Mailer: git-send-email 1.9.1 Cc: zhiyuan.lv@intel.com Subject: [Intel-gfx] [PATCH] drm/i915: Set the access right of kernel param "i915.enable_gvt" to read-only. X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP The access right of kernel param "i915.enable_gvt" should be read-only as it only applies during module load (and is not *runtime* writable). Cc: Chris Wilson Signed-off-by: Zhi Wang Reviewed-by: Joonas Lahtinen --- drivers/gpu/drm/i915/i915_params.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index 7effe68..8b13bfa 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -224,6 +224,6 @@ module_param_named(enable_dpcd_backlight, i915.enable_dpcd_backlight, bool, 0600 MODULE_PARM_DESC(enable_dpcd_backlight, "Enable support for DPCD backlight control (default:false)"); -module_param_named(enable_gvt, i915.enable_gvt, bool, 0600); +module_param_named(enable_gvt, i915.enable_gvt, bool, 0400); MODULE_PARM_DESC(enable_gvt, "Enable support for Intel GVT-g graphics virtualization host support(default:false)");