From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759532Ab0JVS5L (ORCPT ); Fri, 22 Oct 2010 14:57:11 -0400 Received: from kroah.org ([198.145.64.141]:34396 "EHLO coco.kroah.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759422Ab0JVS5C (ORCPT ); Fri, 22 Oct 2010 14:57:02 -0400 X-Mailbox-Line: From gregkh@clark.site Fri Oct 22 11:52:34 2010 Message-Id: <20101022185234.886620835@clark.site> User-Agent: quilt/0.48-11.2 Date: Fri, 22 Oct 2010 11:51:58 -0700 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: stable-review@kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, alan@lxorguk.ukuu.org.uk, Yinghai Lu , Len Brown Subject: [084/103] ACPI: Handle ACPI0007 Device in acpi_early_set_pdc In-Reply-To: <20101022185455.GA9114@kroah.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2.6.35-stable review patch. If anyone has any objections, please let us know. ------------------ From: Yinghai Lu commit c1e0ddbf0a97e1704d7f13b4934f9acca002402d upstream. After | commit d8191fa4a33fdc817277da4f2b7f771ff605a41c | Author: Alex Chiang | Date: Mon Feb 22 12:11:39 2010 -0700 | | ACPI: processor: driver doesn't need to evaluate _PDC | | Now that the early _PDC evaluation path knows how to correctly | evaluate _PDC on only physically present processors, there's no | need for the processor driver to evaluate it later when it loads. | | To cover the hotplug case, push _PDC evaluation down into the | hotplug paths. only cpu with Processor Statement get processed with _PDC If bios is using Device object instead of Processor statement. SSDTs for Pstate/Cstate/Tstate can not be loaded dynamically. Need to try to scan ACPI0007 in addition to Processor. That commit is between 2.6.34-rc1 and 2.6.34-rc2, so stable tree for 2.6.34+ need this patch. Signed-off-by: Yinghai Lu Reviewed-by: Bjorn Helgaas Signed-off-by: Len Brown Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/processor_core.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -352,4 +352,5 @@ void __init acpi_early_processor_set_pdc acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, early_init_pdc, NULL, NULL, NULL); + acpi_get_devices("ACPI0007", early_init_pdc, NULL, NULL); }