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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 47915C4332F for ; Thu, 11 Nov 2021 09:25:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2F50D61989 for ; Thu, 11 Nov 2021 09:25:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232549AbhKKJ1u (ORCPT ); Thu, 11 Nov 2021 04:27:50 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:42985 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231951AbhKKJ1t (ORCPT ); Thu, 11 Nov 2021 04:27:49 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1636622700; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XoIxLEENy2F1Zskv5/PoD5j6jmD+4MPXDSF/F9jQnm4=; b=S+4Z4z0VCGJ4JV80lSh/R9IRk17Q5RLrYlQfYsQhpk4svPRsQQDauKn8gxX355glaPIlLy IodihxzWV8eUx7Uvnd7qb42Z/tWluATihq4c8hCvFLzISg6zaIHdYWtNIBQGm/ZWEWZXtR hwALAzH0jHVHckb9AG6KXSMIHO4X3U0= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-277-27dePAPIOuGCh4lXuVTCDg-1; Thu, 11 Nov 2021 04:24:59 -0500 X-MC-Unique: 27dePAPIOuGCh4lXuVTCDg-1 Received: by mail-wm1-f70.google.com with SMTP id m18-20020a05600c3b1200b0033283ea5facso1599116wms.1 for ; Thu, 11 Nov 2021 01:24:59 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:subject :content-language:from:to:cc:references:in-reply-to :content-transfer-encoding; bh=XoIxLEENy2F1Zskv5/PoD5j6jmD+4MPXDSF/F9jQnm4=; b=Di8U2C2X7yq9qcrPpavlkwA3DEX44mbNpea7j9eEqZEubckQDLiVg9YLsGa0EQqpWA cfIPJ2pburVODVyaRdRwrqLMfM+TgqGBNE60b8W68Ldy6kfqoBdO0aqUTHnZG2hcjjQu BMyJogN3vklVeFeylsDrAi0tS1w9gzOTrf1yQERaac+A7cYyyax9YkWyIpPSTG517Pa6 f2HOM+ivVTDtbL68aEXQbPeoEFvVbPA/q0oP1d0NVKO1lZXDK4v/PtufmHYOuaZ85R4N re4WOrTiwzUAZ50Txl1VeCfXZ6smfwiG0wHeWtlp0XJF4WNrfYSJqg3iPlIAltztIKjj ieHQ== X-Gm-Message-State: AOAM530JvxSEfNEgyrGUEHbhO8FfhgN1P2WKYCu0z/kTpXiWLeyqiR0H OOdx+YizKcCMOdNIvM6N4jc+gGQoQhw42S2rzvxQ4jw3Qyt752XpW5vYCnDwxMnk4NpyDMnh2TC WTC7lzDdcIb12+qJp3WQ= X-Received: by 2002:a05:6000:18ad:: with SMTP id b13mr7062537wri.195.1636622698150; Thu, 11 Nov 2021 01:24:58 -0800 (PST) X-Google-Smtp-Source: ABdhPJz/L5EBwaiQ5M/k0471vvBJxC4do3fiwU7k3yCJtLLPx+phRd7gimWqthqE//nDPulozzVurg== X-Received: by 2002:a05:6000:18ad:: with SMTP id b13mr7062518wri.195.1636622697991; Thu, 11 Nov 2021 01:24:57 -0800 (PST) Received: from [192.168.1.102] ([92.176.231.106]) by smtp.gmail.com with ESMTPSA id l26sm2293227wms.15.2021.11.11.01.24.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 11 Nov 2021 01:24:57 -0800 (PST) Message-ID: <1ddb9e88-1ef8-9888-113b-fd2a2759f019@redhat.com> Date: Thu, 11 Nov 2021 10:24:56 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.0 Subject: Re: [REGRESSION]: drivers/firmware: move x86 Generic System Framebuffers support Content-Language: en-US From: Javier Martinez Canillas To: Ilya Trukhanov Cc: stable@vger.kernel.org, regressions@lists.linux.dev, linux-efi@vger.kernel.org, linux-pm@vger.kernel.org, tzimmermann@suse.de, ardb@kernel.org, rafael@kernel.org, len.brown@intel.com, pavel@ucw.cz, dri-devel References: <20211110200253.rfudkt3edbd3nsyj@lahvuun> <627b6cd1-3446-5e55-ea38-5283a186af39@redhat.com> <20211111004539.vd7nl3duciq72hkf@lahvuun> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org On 11/11/21 08:31, Javier Martinez Canillas wrote: [snip] >>> And for each check /proc/fb, the kernel boot log, and if Suspend-to-RAM works. >>> >>> If the explanation above is correct, then I would expect (1) and (2) to work and >>> (3) to also fail. >>> > > Your testing confirms my assumptions. I'll check how this could be solved to > prevent the efifb driver to be probed if there's already a framebuffer device. > I've posted [0] which does this and also for the simplefb driver. [0]: https://lore.kernel.org/dri-devel/20211111092053.1328304-1-javierm@redhat.com/T/#u Best regards, -- Javier Martinez Canillas Linux Engineering Red Hat