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=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, 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 DCB8CC433ED for ; Sun, 2 May 2021 18:43:56 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 2C2B861353 for ; Sun, 2 May 2021 18:43:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2C2B861353 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4FYFPQ63Jtz30DN for ; Mon, 3 May 2021 04:43:54 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=permerror (SPF Permanent Error: Unknown mechanism found: ip:192.40.192.88/32) smtp.mailfrom=kernel.crashing.org (client-ip=63.228.1.57; helo=gate.crashing.org; envelope-from=segher@kernel.crashing.org; receiver=) Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) by lists.ozlabs.org (Postfix) with ESMTP id 4FYFP31xjXz2yhk for ; Mon, 3 May 2021 04:43:34 +1000 (AEST) Received: from gate.crashing.org (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id 142IbL6B028576; Sun, 2 May 2021 13:37:21 -0500 Received: (from segher@localhost) by gate.crashing.org (8.14.1/8.14.1/Submit) id 142IbKUo028575; Sun, 2 May 2021 13:37:20 -0500 X-Authentication-Warning: gate.crashing.org: segher set sender to segher@kernel.crashing.org using -f Date: Sun, 2 May 2021 13:37:19 -0500 From: Segher Boessenkool To: Masahiro Yamada Subject: Re: [PATCH] Raise the minimum GCC version to 5.2 Message-ID: <20210502183719.GG10366@gate.crashing.org> References: <20210501151538.145449-1-masahiroy@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210501151538.145449-1-masahiroy@kernel.org> User-Agent: Mutt/1.4.2.3i 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: , Cc: Albert Ou , Catalin Marinas , Arnd Bergmann , linux-kbuild@vger.kernel.org, Greg Kroah-Hartman , Jonathan Corbet , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Will Deacon , Palmer Dabbelt , Paul Walmsley , Miguel Ojeda , Paul Mackerras , linux-riscv@lists.infradead.org, Linus Torvalds , linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Sun, May 02, 2021 at 12:15:38AM +0900, Masahiro Yamada wrote: > The current minimum GCC version is 4.9 except ARCH=arm64 requiring > GCC 5.1. > > When we discussed last time, we agreed to raise the minimum GCC version > to 5.1 globally. [1] > > I'd like to propose GCC 5.2 to clean up arch/powerpc/Kconfig as well. Both of these are GCC version 5. GCC 5.1 is the first release of that, GCC 5.2 the second, etc. Everyone should always use an as new release as practical, since many bugs will be fixed, and nothing else changed. See . So, this means everyone using GCC 5 should be using the GCC 5.5 release! If there is something about 5.1 that makes it produce bad kernels on some arch, make that arch's Makefile complain? Same with binutils etc. Segher