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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1E0D0C4332F for ; Wed, 4 May 2022 17:13:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241362AbiEDRRD (ORCPT ); Wed, 4 May 2022 13:17:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55058 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355792AbiEDRIv (ORCPT ); Wed, 4 May 2022 13:08:51 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 861B551E73; Wed, 4 May 2022 09:54:35 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4A4B961851; Wed, 4 May 2022 16:54:35 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 977CFC385A4; Wed, 4 May 2022 16:54:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1651683274; bh=y1D8LeGMgAJ4kn6HvDYXfJHSZWVRSoy07IEQjK7OxQE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OH+1C1qVje9NlIWUCtWCDENIq2U7rZeG/OkUXVEiIMC9vkH/4B5IQM2l5fC4oRW79 7A3HnhkD+BuIhhmlkYyR+MEsxyGbUWAMfkyPOcPHPpE39hXmX5nhZ6IHkhB+UrR7UY RFBknQ9KI8AeSFydQ156ZJQcqPcOgLtpEl0hTaX4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= , Woody Suwalski , "Rafael J. Wysocki" Subject: [PATCH 5.15 140/177] Revert "ACPI: processor: idle: fix lockup regression on 32-bit ThinkPad T40" Date: Wed, 4 May 2022 18:45:33 +0200 Message-Id: <20220504153105.772291535@linuxfoundation.org> X-Mailer: git-send-email 2.36.0 In-Reply-To: <20220504153053.873100034@linuxfoundation.org> References: <20220504153053.873100034@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ville Syrjälä commit 20e582e16af24b074e583f9551fad557882a3c9d upstream. This reverts commit bfe55a1f7fd6bfede16078bf04c6250fbca11588. This was presumably misdiagnosed as an inability to use C3 at all when I suspect the real problem is just misconfiguration of C3 vs. ARB_DIS. Signed-off-by: Ville Syrjälä Cc: 5.16+ # 5.16+ Tested-by: Woody Suwalski Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/processor_idle.c | 5 ----- 1 file changed, 5 deletions(-) --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -95,11 +95,6 @@ static const struct dmi_system_id proces DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."), DMI_MATCH(DMI_PRODUCT_NAME,"L8400B series Notebook PC")}, (void *)1}, - /* T40 can not handle C3 idle state */ - { set_max_cstate, "IBM ThinkPad T40", { - DMI_MATCH(DMI_SYS_VENDOR, "IBM"), - DMI_MATCH(DMI_PRODUCT_NAME, "23737CU")}, - (void *)2}, {}, };