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=-1.1 required=3.0 tests=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 4A940C433E0 for ; Thu, 2 Jul 2020 08:21:06 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id 9A23320720 for ; Thu, 2 Jul 2020 08:21:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="QC3pfARo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9A23320720 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-19202-kernel-hardening=archiver.kernel.org@lists.openwall.com Received: (qmail 1472 invoked by uid 550); 2 Jul 2020 08:20:57 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Received: (qmail 1437 invoked from network); 2 Jul 2020 08:20:57 -0000 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=lYeUH98ECIdWEh43yZAHKXD5kblKbjXwCRAczr7OF8g=; b=QC3pfARojKciVxMrZBOx7jz1mN Pab8UojFGO1fmoOFkavzVJlTHdnSbAvvJmrl6qyTfz9JxQ0oVT9N3F3WQ8VDXAHtOt7Bhbc36Sn1D bnEyFCZg5ygqz/hsNcsmBmq4lNF0bm5ijX0J2cmZBSWR0Q9CWFlcuZMu8ctLIW6o49m83sHRa6RbY 1MRzYZOf1YSuGKFdnptt9tybEqVUIQvpRKLyPHa++McjsktYpeEXl/KwxDq39uwxgXI3xJ6Oa9JYw mE1EgZGIdy98yvLtver8lS2emXEaRZOoWRizYYr1UaUpeQRcOUWx1Aq0gYAVOe8/cl0TXWgoDv0aE zeOwHtLg==; Date: Thu, 2 Jul 2020 10:20:40 +0200 From: Peter Zijlstra To: "Paul E. McKenney" Cc: Marco Elver , Nick Desaulniers , Sami Tolvanen , Masahiro Yamada , Will Deacon , Greg Kroah-Hartman , Kees Cook , clang-built-linux , Kernel Hardening , linux-arch , Linux ARM , Linux Kbuild mailing list , LKML , linux-pci@vger.kernel.org, "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" Subject: Re: [PATCH 00/22] add support for Clang LTO Message-ID: <20200702082040.GB4781@hirez.programming.kicks-ass.net> References: <20200625082433.GC117543@hirez.programming.kicks-ass.net> <20200625085745.GD117543@hirez.programming.kicks-ass.net> <20200630191931.GA884155@elver.google.com> <20200630201243.GD4817@hirez.programming.kicks-ass.net> <20200630203016.GI9247@paulmck-ThinkPad-P72> <20200701114027.GO4800@hirez.programming.kicks-ass.net> <20200701140654.GL9247@paulmck-ThinkPad-P72> <20200701150512.GH4817@hirez.programming.kicks-ass.net> <20200701160338.GN9247@paulmck-ThinkPad-P72> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200701160338.GN9247@paulmck-ThinkPad-P72> On Wed, Jul 01, 2020 at 09:03:38AM -0700, Paul E. McKenney wrote: > But it looks like we are going to have to tell the compiler. What does the current proposal look like? I can certainly annotate the seqcount latch users, but who knows what other code is out there....