Received: by 2002:a05:6a10:1a4d:0:0:0:0 with SMTP id nk13csp6354414pxb; Tue, 15 Feb 2022 00:02:31 -0800 (PST) X-Google-Smtp-Source: ABdhPJwq3D84cjH2uvKmnKAUMpVpmOZ3C9CftZ5DEA6YdfTtoZ/KE/aKs+7ThmC1UuDJOD6g7nwN X-Received: by 2002:aa7:db02:: with SMTP id t2mr2675468eds.414.1644912151064; Tue, 15 Feb 2022 00:02:31 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1644912151; cv=none; d=google.com; s=arc-20160816; b=CRVp7KALzAGm3/7PCoR06EbdogNh0Vy4h96a+JgdEFNU74fQAPuEVgguCP1KWXa+6k 56v/2aKVa1nDcYGL9Ep02x9VbFrkhfYnID1iVzQZOYMTTBcqGglY2gu+GfRrd3QOl4WP xO6Z8O+hF4GAQSO1+QdjAq58fJRwQv7sh4RG9+49ZeFQXlNQiy/CwbNcKFEhI1rZLtjc DQ8JRbcKVuyapA6O9V3G07FCiakGC0YqFCwblnVzBva1ebdaby3I41DMb69QI5G9Wifc 4s/ply8FTWXP/Gd8VXR1DQGh1h1myf1c+3OkMgHt6Siunct4voQVi0dt4x3tzVT5Zmwu bMvw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:content-language:cc:to :subject:from:user-agent:mime-version:date:message-id; bh=S1hwY7ZOQy01q17t1C7cUgaOwhtyOTIjkucZVRQ5qKI=; b=BEdGnv/dPAiQJL/bXblmTSiO6qMRH01PjN5e3d6gbhGcV9zonLyYq8oiAxb4A6Xq2t 4UFopbgpakgei5EPulyOVq6d8xwpVBjkiSEz2IGHn0OxV3kG3K/jeaL4X6wkuiQpMObi 4cKC6a9MSZV6bhA2FFDSkLBwYj7TBEib/isxXH0sUTYYv8ykMvk7MNBXRDEAt6wln737 S47gIgLyxk6gyCNx5Bbrpr05siGal3nDJfIbSVsRKdvU/JUWAfbi5VXfiXBA9hyWyqE3 gvpWzDv0JAAhmyKowh94P0fff5pzGI++EvI4/C7ptNcNN60uNTBJqbOBEfBHw76/IaZo JUdw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id dz16si25725888edb.102.2022.02.15.00.02.08; Tue, 15 Feb 2022 00:02:31 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232073AbiBOHv6 (ORCPT + 99 others); Tue, 15 Feb 2022 02:51:58 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:40082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229485AbiBOHv4 (ORCPT ); Tue, 15 Feb 2022 02:51:56 -0500 Received: from mx1.molgen.mpg.de (mx3.molgen.mpg.de [141.14.17.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3C5A9BD2F3; Mon, 14 Feb 2022 23:51:46 -0800 (PST) Received: from [192.168.0.2] (ip5f5aee0e.dynamic.kabel-deutschland.de [95.90.238.14]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: pmenzel) by mx.molgen.mpg.de (Postfix) with ESMTPSA id BD95F61EA1928; Tue, 15 Feb 2022 08:51:44 +0100 (CET) Message-ID: <55f5c077-061c-7e53-b02d-53dde1dd654f@molgen.mpg.de> Date: Tue, 15 Feb 2022 08:51:44 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.6.0 From: Paul Menzel Subject: New warning: ACPI: CEDT not present To: Dan Williams Cc: "Rafael J. Wysocki" , linux-acpi@vger.kernel.org, LKML , regressions@lists.linux.dev Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org #regzbot introduced: 2d03e46a4bad20191d07b83ec1242d5f002577be Dear Dan, On the Dell Latitude E7250, Linux 5.17-rc3 logs the warning below (`dmesg --level=warn`): ACPI: CEDT not present I think commit 2d03e46a4bad (ACPI: Add a context argument for table parsing handlers), part of Linux since 5.17-rc1, is the reason. If I understand it correctly, CEDT is not to be expected on older devices, so the warning is not justified. Can something be done about it? Kind regards, Paul