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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 EC02FC433DF for ; Thu, 14 May 2020 13:47:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C892220727 for ; Thu, 14 May 2020 13:47:34 +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="wLziFQot" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726667AbgENNre (ORCPT ); Thu, 14 May 2020 09:47:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726161AbgENNrd (ORCPT ); Thu, 14 May 2020 09:47:33 -0400 Received: from merlin.infradead.org (unknown [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B63EC061A0C for ; Thu, 14 May 2020 06:47:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.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=+y+OkMlzMktu9KK047UqVkffx7tV9CVsxhVOVttko3E=; b=wLziFQotvcTbxugSBFz31XrK/n LqCjv9YvHTnuJzOBVF+mMflcbBeRCjHFUI8fHWKaBHrF0z01Olgo0EFldMEq79ZG6IkPdxvQKUXjB af6jo1o70KFFfG+6c5z5vs8/zNURJJ/fgtMcWeMi/iGm0dtHzfVPrTFOscrlXJUgzElRgWORb6/gz TY4jcl18lJ6seZz9w7wJQ1fbdUpPhr4FAdkUhJYpmWE8IBQZjjVcDtLzozYcfEzD/n4hb7DEmC1Bs ETY4WxlikH6NC+PqwinJXdK+1yHBKJNOgkoQScXrv8+rl1wwPgn1c3P6GIZKG0GpOu0hunJyuyo30 wMJ2PuAw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZECb-00007I-LW; Thu, 14 May 2020 13:47:09 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 353F4301DFD; Thu, 14 May 2020 15:47:07 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 1CD942B852D66; Thu, 14 May 2020 15:47:07 +0200 (CEST) Date: Thu, 14 May 2020 15:47:07 +0200 From: Peter Zijlstra To: Marco Elver Cc: Will Deacon , kasan-dev , LKML , Thomas Gleixner , "Paul E. McKenney" , Ingo Molnar , Dmitry Vyukov Subject: Re: [PATCH v5 00/18] Rework READ_ONCE() to improve codegen Message-ID: <20200514134707.GY2978@hirez.programming.kicks-ass.net> References: <20200513124021.GB20278@willie-the-truck> <20200513165008.GA24836@willie-the-truck> <20200513174747.GB24836@willie-the-truck> <20200513212520.GC28594@willie-the-truck> <20200514110537.GC4280@willie-the-truck> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, May 14, 2020 at 03:35:58PM +0200, Marco Elver wrote: > 2. __always_inline functions inlined into __no_sanitize function is > not instrumented. [Has always been satisfied by GCC and Clang.] GCC <= 7 fails to compile in this case.