From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752691AbcANGi6 (ORCPT ); Thu, 14 Jan 2016 01:38:58 -0500 Received: from mga02.intel.com ([134.134.136.20]:29098 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751081AbcANGi4 (ORCPT ); Thu, 14 Jan 2016 01:38:56 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.22,293,1449561600"; d="scan'208";a="892896077" From: ankitprasad.r.sharma@intel.com To: intel-gfx@lists.freedesktop.org Cc: akash.goel@intel.com, shashidhar.hiremath@intel.com, tvrtko.ursulin@linux.intel.com, Ankitprasad Sharma , "Rafael J. Wysocki" , Len Brown , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 10/11] acpi: Export acpi_bus_type Date: Thu, 14 Jan 2016 11:46:46 +0530 Message-Id: <1452752207-30382-11-git-send-email-ankitprasad.r.sharma@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1452752207-30382-1-git-send-email-ankitprasad.r.sharma@intel.com> References: <1452752207-30382-1-git-send-email-ankitprasad.r.sharma@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ankitprasad Sharma Some modules, like i915.ko, needs to detect when certain ACPI features are active inorder to prevent corruption on contended resources. In particular, use of BIOS RapidStart Technology may corrupt the contents of the reserved graphics memory, due to unalarmed hibernation. In which case i915.ko cannot assume that it (reserved gfx memory) remains unmodified and must recreate teh contents and importantly not use it to store unrecoverable user data. Signed-off-by: Ankitprasad Sharma Cc: "Rafael J. Wysocki" Cc: Len Brown Cc: linux-acpi@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/acpi/bus.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index a212cef..69509c7 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -814,6 +814,7 @@ struct bus_type acpi_bus_type = { .remove = acpi_device_remove, .uevent = acpi_device_uevent, }; +EXPORT_SYMBOL_GPL(acpi_bus_type); /* -------------------------------------------------------------------------- Initialization/Cleanup -- 1.9.1