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=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_MUTT autolearn=ham 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 8E0BAC4646B for ; Wed, 26 Jun 2019 08:06:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 675092133F for ; Wed, 26 Jun 2019 08:06:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="E1zOSkc5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726508AbfFZIGX (ORCPT ); Wed, 26 Jun 2019 04:06:23 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:39804 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725876AbfFZIGW (ORCPT ); Wed, 26 Jun 2019 04:06:22 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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: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=2iTCh3reZAKC9g3ThceRYOjvo3XKUmMa8eZRZ5HXM04=; b=E1zOSkc5DpzkVGlg1+h0BYiT7 MNUlnpycbkPotCUTu5dSGzW4FgEUo8aPSqy6NjX9R28UbuUkRW++EVwrMUppWTRUo6bx032JuCIvl 6GG2Or/2bthcoBUUQWL6hv0WoBVBOjbcE4cS9IOFde2PX2dmMQ9ylZWIODLlhfjH0/OUAb1DVcweV Piqix0RSHvf63fI1RNxYLqN1YRTzhnVyfhC8C8H845eOwowGW/lZeMaseS9I8h29Tf6j/kdFxKM1W 2Hz/QVfPQhmNddVgEg8hwI8rI37Rvzlre5/b80Y+lJXLKv4KmYKIM/C6cJ8vC1H0m3gI/J2D1/rKF 8usiMwt6Q==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hg2wR-0001T7-Ck; Wed, 26 Jun 2019 08:06:07 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id DF3B8200B848F; Wed, 26 Jun 2019 10:06:05 +0200 (CEST) Date: Wed, 26 Jun 2019 10:06:05 +0200 From: Peter Zijlstra To: Kees Cook Cc: Miguel Ojeda , "Gustavo A. R. Silva" , Joe Perches , Ingo Molnar , Arnaldo Carvalho de Melo , Alexander Shishkin , Jiri Olsa , Namhyung Kim , Thomas Gleixner , Borislav Petkov , "H. Peter Anvin" , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , Kan Liang , linux-kernel , Shawn Landden Subject: Re: [PATCH] perf/x86/intel: Mark expected switch fall-throughs Message-ID: <20190626080605.GH3419@hirez.programming.kicks-ass.net> References: <20190624161913.GA32270@embeddedor> <20190624193123.GI3436@hirez.programming.kicks-ass.net> <20190624203737.GL3436@hirez.programming.kicks-ass.net> <3dc75cd4-9a8d-f454-b5fb-64c3e6d1f416@embeddedor.com> <20190625071846.GN3436@hirez.programming.kicks-ass.net> <201906251009.BCB7438@keescook> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201906251009.BCB7438@keescook> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 25, 2019 at 10:12:42AM -0700, Kees Cook wrote: > On Tue, Jun 25, 2019 at 09:18:46AM +0200, Peter Zijlstra wrote: > > Can it build a kernel without patches yet? That is, why should I care > > what LLVM does? > > Yes. LLVM trunk builds and boots x86 now. As for distro availability, If it's not release and not in distros, then no. So then get that same trunk to support the __fallthrough crap so it all lands in the same release and we done ;-)