Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932569AbVLMI3m (ORCPT ); Tue, 13 Dec 2005 03:29:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932564AbVLMI3E (ORCPT ); Tue, 13 Dec 2005 03:29:04 -0500 Received: from mail.kroah.org ([69.55.234.183]:30340 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S932569AbVLMIZL (ORCPT ); Tue, 13 Dec 2005 03:25:11 -0500 Date: Tue, 13 Dec 2005 00:22:51 -0800 From: Greg KH To: linux-kernel@vger.kernel.org, stable@kernel.org Cc: Justin Forbes , Zwane Mwaikambo , "Theodore Ts'o" , Randy Dunlap , Dave Jones , Chuck Wolber , torvalds@osdl.org, akpm@osdl.org, alan@lxorguk.ukuu.org.uk, dsd@gentoo.org, venkatesh.pallipadi@intel.com, len.brown@intel.com Subject: [patch 10/26] ACPI: Prefer _CST over FADT for C-state capabilities Message-ID: <20051213082251.GK5823@kroah.com> References: <20051213073430.558435000@press.kroah.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline; filename="acpi-prefer-_cst-over-fadt-for-c-state-capabilities.patch" In-Reply-To: <20051213082143.GA5823@kroah.com> User-Agent: Mutt/1.5.11 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1846 Lines: 55 -stable review patch. If anyone has any objections, please let us know. ------------------ From: Venkatesh Pallipadi Note: This ACPI standard compliance may cause regression on some system, if they have _CST present, but _CST value is bogus. "nocst" module parameter should workaround that regression. http://bugzilla.kernel.org/show_bug.cgi?id=5165 (cherry picked from 883baf7f7e81cca26f4683ae0d25ba48f094cc08 commit) Signed-off-by: Venkatesh Pallipadi Signed-off-by: Len Brown Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/processor_idle.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) --- linux-2.6.14.3.orig/drivers/acpi/processor_idle.c +++ linux-2.6.14.3/drivers/acpi/processor_idle.c @@ -687,7 +687,7 @@ static int acpi_processor_get_power_info /* Validate number of power states discovered */ if (pr->power.count < 2) - status = -ENODEV; + status = -EFAULT; end: acpi_os_free(buffer.pointer); @@ -838,11 +838,11 @@ static int acpi_processor_get_power_info * this function */ result = acpi_processor_get_power_info_cst(pr); - if ((result) || (acpi_processor_power_verify(pr) < 2)) { + if (result == -ENODEV) result = acpi_processor_get_power_info_fadt(pr); - if ((result) || (acpi_processor_power_verify(pr) < 2)) - result = acpi_processor_get_power_info_default_c1(pr); - } + + if ((result) || (acpi_processor_power_verify(pr) < 2)) + result = acpi_processor_get_power_info_default_c1(pr); /* * Set Default Policy -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/