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=-12.0 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 DB673C4320E for ; Wed, 18 Aug 2021 04:42:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BE985610D2 for ; Wed, 18 Aug 2021 04:42:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237588AbhHREnV (ORCPT ); Wed, 18 Aug 2021 00:43:21 -0400 Received: from gateway30.websitewelcome.com ([192.185.192.34]:14363 "EHLO gateway30.websitewelcome.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237714AbhHREnU (ORCPT ); Wed, 18 Aug 2021 00:43:20 -0400 Received: from cm11.websitewelcome.com (cm11.websitewelcome.com [100.42.49.5]) by gateway30.websitewelcome.com (Postfix) with ESMTP id E64A018E51 for ; Tue, 17 Aug 2021 23:42:44 -0500 (CDT) Received: from gator4166.hostgator.com ([108.167.133.22]) by cmsmtp with SMTP id GDPYmaEjGK61iGDPYmYhth; Tue, 17 Aug 2021 23:42:44 -0500 X-Authority-Reason: nr=8 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=embeddedor.com; s=default; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=fqWho5z6HDj4E/uC18IyWmSmTMfo9JPqAgS3dawEvWk=; b=be9hlQMJu3Ujj1NTF548ywxCeb Cdh3EeFeibFikH+Pyt4qRrY2hsmcU9q5mv0J4whSv06j3VboWiOUR7Ig1dwy+SLDhj0ORSNzgoikp mOjCvl9AKoj+snKJQ3B7JHIP0XSuj7vXUD3RDsGwhJWYRRXdegf4d0wVeoRdCTMMQ4nY7BIAglxbh Px17n9e22kpZp3eUpwwy8UKxZ8e0MXHHjsZNiwyLVO2ZCP2jXhVeUOd1gUbuzyJbiZMMTh1PuNKrx LVvwpTxiFeCKOIQdAxaCgQh2j3Lulj845WoZ4FYCHVl5AFALi+MQxer4P0Ue4xFhmpu/xbVDdmo6o CPfYNuuw==; Received: from 187-162-31-110.static.axtel.net ([187.162.31.110]:45490 helo=[192.168.15.8]) by gator4166.hostgator.com with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1mGDPY-002STB-9X; Tue, 17 Aug 2021 23:42:44 -0500 Subject: Re: [PATCH] kbuild: Enable -Wimplicit-fallthrough for clang 14.0.0+ To: Philip Li , Nathan Chancellor Cc: Kees Cook , Masahiro Yamada , Linus Torvalds , "Gustavo A. R. Silva" , Nick Desaulniers , Linux Kbuild mailing list , Linux Kernel Mailing List , clang-built-linux , linux-hardening@vger.kernel.org References: <20210817005624.1455428-1-nathan@kernel.org> <80fa539a-b767-76ed-dafa-4d8d1a6b063e@kernel.org> <5c856f36-69a7-e274-f72a-c3aef195adeb@kernel.org> <202108171056.EDCE562@keescook> <3f28b45e-e725-8b75-042a-d34d90c56361@kernel.org> <71d76c41-7f9b-6d60-ba4f-0cd84596b457@embeddedor.com> <202108171602.159EB2C7EA@keescook> <72ae69b4-6069-ade5-a12b-8ee0435f803a@kernel.org> <20210818042720.GA1645557@pl-dbox> From: "Gustavo A. R. Silva" Message-ID: Date: Tue, 17 Aug 2021 23:45:48 -0500 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210818042720.GA1645557@pl-dbox> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator4166.hostgator.com X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - embeddedor.com X-BWhitelist: no X-Source-IP: 187.162.31.110 X-Source-L: No X-Exim-ID: 1mGDPY-002STB-9X X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: 187-162-31-110.static.axtel.net ([192.168.15.8]) [187.162.31.110]:45490 X-Source-Auth: gustavo@embeddedor.com X-Email-Count: 11 X-Source-Cap: Z3V6aWRpbmU7Z3V6aWRpbmU7Z2F0b3I0MTY2Lmhvc3RnYXRvci5jb20= X-Local-Domain: yes Precedence: bulk List-ID: X-Mailing-List: linux-hardening@vger.kernel.org On 8/17/21 23:27, Philip Li wrote: >> Philip, how often is the kernel test robot's clang version rebuilt? Would it >> be possible to bump it to latest ToT or at least >> 9ed4a94d6451046a51ef393cd62f00710820a7e8 so that we do not get bit by this >> warning when we go to enable this flag? > Got it, currently we do upgrade in weekly cadence (but it may fall behind sometimes), > and the one we use now is clang version 14.0.0 (https://github.com/llvm/llvm-project > 2c6448cdc2f68f8c28fd0bd9404182b81306e6e6) > > We will ugrade to the head of llvm-project master today. Thanks, Philip. We really appreciate it. -- Gustavo