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 X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E64B9C433E1 for ; Thu, 6 Aug 2020 12:09:50 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 97A7422D0B for ; Thu, 6 Aug 2020 12:09:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 97A7422D0B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4BMhYK55N5zDqVk for ; Thu, 6 Aug 2020 18:31:49 +1000 (AEST) Received: from ozlabs.org (bilbo.ozlabs.org [203.11.71.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4BMhRQ1Cm2zDqYt for ; Thu, 6 Aug 2020 18:26:42 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Received: from ozlabs.org (bilbo.ozlabs.org [IPv6:2401:3900:2:1::2]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4BMhRP4lKpz8sWN for ; Thu, 6 Aug 2020 18:26:41 +1000 (AEST) Received: by ozlabs.org (Postfix) id 4BMhRP3KvZz9sTR; Thu, 6 Aug 2020 18:26:41 +1000 (AEST) Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=csgroup.eu (client-ip=93.17.236.30; helo=pegase1.c-s.fr; envelope-from=christophe.leroy@csgroup.eu; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=csgroup.eu Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4BMhRN6gwbz9sTC for ; Thu, 6 Aug 2020 18:26:40 +1000 (AEST) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4BMhRJ63ndz9v0TJ; Thu, 6 Aug 2020 10:26:36 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id hom7Xzisoprr; Thu, 6 Aug 2020 10:26:36 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4BMhRJ4pysz9v0TH; Thu, 6 Aug 2020 10:26:36 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id CE0498B7FA; Thu, 6 Aug 2020 10:26:37 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id ogWtvypUuRuD; Thu, 6 Aug 2020 10:26:37 +0200 (CEST) Received: from [172.25.230.102] (po15451.idsi0.si.c-s.fr [172.25.230.102]) by messagerie.si.c-s.fr (Postfix) with ESMTP id ACD218B75E; Thu, 6 Aug 2020 10:26:37 +0200 (CEST) Subject: Re: [PATCH] powerpc/40x: Fix assembler warning about r0 To: Michael Ellerman , linuxppc-dev@ozlabs.org References: <20200722022422.825197-1-mpe@ellerman.id.au> <87o8noy0sc.fsf@mpe.ellerman.id.au> From: Christophe Leroy Message-ID: <7faebe28-07f9-b5df-6b6d-a25342e2bcad@csgroup.eu> Date: Thu, 6 Aug 2020 10:26:23 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <87o8noy0sc.fsf@mpe.ellerman.id.au> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Le 06/08/2020 à 04:18, Michael Ellerman a écrit : > Christophe Leroy writes: >> Le 22/07/2020 à 04:24, Michael Ellerman a écrit : >>> The assembler says: >>> arch/powerpc/kernel/head_40x.S:623: Warning: invalid register expression >> >> I get exactly the same with head_32.S, for the exact same reason. > > Ah yep, I see it. I mostly build pmac32_defconfig which doesn't have > BDI_SWITCH enabled. > > Send a patch? :) Done. > > Do we still need the BDI_SWITCH code? Is it likely anyone still has one, > that works? I have three (One for 83xx and two for 8xx) and they work, allthough I'm using them only for Uboot and for very very very early Linux boot debugging (Last time I used it with Linux was when implementing KASAN) Christophe