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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 69FA0C433B4 for ; Sun, 2 May 2021 22:31:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4670C6120E for ; Sun, 2 May 2021 22:31:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232421AbhEBWcY (ORCPT ); Sun, 2 May 2021 18:32:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38256 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232372AbhEBWcW (ORCPT ); Sun, 2 May 2021 18:32:22 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C5A5DC06174A; Sun, 2 May 2021 15:31:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=sxg9T1l2P1TCAt0KGvVd11DgxmUSs0be5EJPC9/f71E=; b=udzO03mH7WI7B+E+YTdUOwtAf1 pjHtqAcqFvgk6A/VPnylKxmrsD2lIsft1hfQrFKrFeNBtjNS6w+ZE+mHiu5d5gHPflr/5ZEY0rMY3 j/Vp83jF/iLnG6XdNPzIyF+mF5/lYl4l1cbzzG1WNvagPbMrY6WOJxtjqyegDj+NUVKUcLudh1Jxj aIs6ARBcGAieZGWtA+1xInBrNjRM1WzTAXphw3z434iaMpsXozUAAxgXsgOVhK/ROYowwzYtHNMjt qTvAIs7sHWprczN8zI56TNESOK3PApv5dUV0ZiJ8bjyK89wcLViH+1YjrBh3jVl2hZIW2BIswvKuA GSIUL4Rg==; Received: from willy by casper.infradead.org with local (Exim 4.94 #2 (Red Hat Linux)) id 1ldKbH-00EKpr-87; Sun, 02 May 2021 22:30:19 +0000 Date: Sun, 2 May 2021 23:30:07 +0100 From: Matthew Wilcox To: Linus Torvalds Cc: Segher Boessenkool , Joe Perches , Miguel Ojeda , Masahiro Yamada , Albert Ou , Arnd Bergmann , Linux Kbuild mailing list , Greg Kroah-Hartman , Jonathan Corbet , Linux Doc Mailing List , linux-kernel , Palmer Dabbelt , Paul Walmsley , Catalin Marinas , Miguel Ojeda , Paul Mackerras , linux-riscv@lists.infradead.org, linuxppc-dev , Will Deacon , Linux ARM Subject: Re: [PATCH] Raise the minimum GCC version to 5.2 Message-ID: <20210502223007.GZ1847222@casper.infradead.org> References: <20210501151538.145449-1-masahiroy@kernel.org> <3943bc020f6227c8801907317fc113aa13ad4bad.camel@perches.com> <20210502183030.GF10366@gate.crashing.org> <81a926a3bdb70debe3ae2b13655ea8d249fb9991.camel@perches.com> <20210502203253.GH10366@gate.crashing.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sun, May 02, 2021 at 02:08:31PM -0700, Linus Torvalds wrote: > What is relevant is what version of gcc various distributions actually > have reasonably easily available, and how old and relevant the > distributions are. We did decide that (just as an example) RHEL 7 was > too old to worry about when we updated the gcc version requirement > last time. > > Last year, Arnd and Kirill (maybe others were involved too) made a > list of distros and older gcc versions. But I don't think anybody > actually _maintains_ such a list. It would be perhaps interesting to > have some way to check what compiler versions are being offered by > different distros. fwiw, Debian 9 aka Stretch released June 2017 had gcc 6.3 Debian 10 aka Buster released June 2019 had gcc 7.4 *and* 8.3. Debian 8 aka Jessie had gcc-4.8.4 and gcc-4.9.2. So do we care about people who haven't bothered to upgrade userspace since 2017? If so, we can't go past 4.9.