Received: by 2002:a05:6a10:eb17:0:0:0:0 with SMTP id hx23csp2876685pxb; Mon, 6 Sep 2021 07:19:07 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwiwNkVSitXayPHlCIG4yJmYqCsjz38H5RF9EwMGZwm9sImF0B03CUCLRri9k/hQqfFQ33C X-Received: by 2002:a17:906:fb17:: with SMTP id lz23mr13598781ejb.438.1630937947003; Mon, 06 Sep 2021 07:19:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1630937946; cv=none; d=google.com; s=arc-20160816; b=EByO/YS1xT209j0cFr1baAei9v9B64Evh/VPS34ch1FKKnnBxCz3N3YLyKKAa9hTLc HhwUopFNAB4z6CCSDahpRLwbP3b1DA5F2y54uNVS0Ps0hlceuRwrNAw1c6y3J7fl8B18 rw+rwh9pG5c56pP5jVZ8I1CwkPTDW3MruOxkzJCYO50+/Zzo1J1j4psqNjHRUgxFMlPU nl7aoxzZoMYEnmGHVuEyLZitMHXykNH4SVrnjqW2zqaEehVIGmw4LkU1wztl9N7Ngr6j OVwM21NY/0pQs0IdKknKIyoyRAfxXvF7m30HUspqkkyS221hh/OoGiIY6kIRVJ3nHjUg lIIw== 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 :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject; bh=ROzOPG8pxgiyPAwDNb5PfFK1trr4GrdIhDtYSECbEe4=; b=juUP6ptWHJ7cyoMtIAvJbjATKgXerxZvOwYgmfSau2eWbG6lrQatxTQsJhn24RFnxG BEA+xTcZeZc4u7qnMUVE/y8now5od/uREljeOA/MnU79hyXeAfR+mc0x6L9k6z6k81gf n/cBa/XRP6vw1vmygsLkCBpTr0pqsADWGjUHaB5EJVxQHa6uPDqMWaU91vcBwcYCdsWp 3EBCZkbdDO9RF8ikS6EReVWE1Atf5dL+4tkHoh/uf17+SxU9AC+lhUjzAXahyNmdELoI H2BMh50Nf/TYW257MdSXcQg+7YR/r35ywHkJdSWFsBIHK6ge0VldPCR3FSu8FUYQQ8KV inmQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id la20si8305747ejc.685.2021.09.06.07.18.35; Mon, 06 Sep 2021 07:19:06 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243107AbhIFOQW (ORCPT + 99 others); Mon, 6 Sep 2021 10:16:22 -0400 Received: from mx3.molgen.mpg.de ([141.14.17.11]:40055 "EHLO mx1.molgen.mpg.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S242521AbhIFOQW (ORCPT ); Mon, 6 Sep 2021 10:16:22 -0400 Received: from [192.168.0.7] (ip5f5ae911.dynamic.kabel-deutschland.de [95.90.233.17]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) (Authenticated sender: pmenzel) by mx.molgen.mpg.de (Postfix) with ESMTPSA id AB11D61E64846; Mon, 6 Sep 2021 16:15:14 +0200 (CEST) Subject: Re: New warning: PRMT not found To: "Rafael J. Wysocki" , Aubrey Li Cc: "Rafael J. Wysocki" , Len Brown , ACPI Devel Maling List , LKML References: <64150c95-3f7d-d21f-d6fb-b9d478ed6798@molgen.mpg.de> <766862fc-80fa-775b-6e63-6d9422d1d258@molgen.mpg.de> From: Paul Menzel Message-ID: Date: Mon, 6 Sep 2021 16:15:14 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dear Rafael, dear Aubrey, Thank you for replying. Am 06.09.21 um 14:02 schrieb Rafael J. Wysocki: > On Mon, Sep 6, 2021 at 1:51 PM Paul Menzel wrote: […] >> Am 26.07.21 um 09:42 schrieb Paul Menzel: >>> The new code added in commit cefc7ca462 (ACPI: PRM: implement >>> OperationRegion handler for the PlatformRtMechanism subtype) causes >>> Linux to log a warning on my desktop system Asus F2A85-M PRO. >>> >>> PRMT not found >>> >>> The help text for the Kconfig option `ACPI_PRMT` suggests it’s mainly >>> used for server systems, so the warning does not apply to a lot of >>> systems. Therefore, in my opinion, the option should not be selected by >>> default, or the warning be removed or demoted, and phrased in a way, >>> that users can understand the consequences. >> >> The new warning shows up on a lot of systems, with no indication what to >> do about it or why Linux actually warns about it. >> >> Should the message be removed entirely? Or is there another indicator >> for systems where absent PRMT causes problems, so should be warned about? > > This should be addressed by commit 2bbfa0addd63 "ACPI: PRM: Deal with > table not present or no module found", or yet another fix is needed. Linux still warns on my systems with Linux 5.14 and Linus’ master in QEMU i440fx and an Asus F2A85-M PRO. Kind regards, Paul