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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 A4A11C43387 for ; Tue, 18 Dec 2018 22:16:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F1A421871 for ; Tue, 18 Dec 2018 22:16:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728159AbeLRWQY (ORCPT ); Tue, 18 Dec 2018 17:16:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:46572 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726704AbeLRWQX (ORCPT ); Tue, 18 Dec 2018 17:16:23 -0500 Received: from gandalf.local.home (cpe-66-24-56-78.stny.res.rr.com [66.24.56.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 1E537218A4; Tue, 18 Dec 2018 22:16:22 +0000 (UTC) Date: Tue, 18 Dec 2018 17:16:20 -0500 From: Steven Rostedt To: Andi Kleen Cc: Martin Jambor , Miroslav Benes , Josh Poimboeuf , Peter Zijlstra , Arnd Bergmann , Linux Kernel Mailing List , the arch/x86 maintainers Subject: Re: objtool warnings for kernel/trace/trace_selftest_dynamic.o Message-ID: <20181218171620.365c1c51@gandalf.local.home> In-Reply-To: <20181218221338.GK25620@tassilo.jf.intel.com> References: <20181217181638.dfexg6mkmbfyzfli@treble> <20181217192938.GF2218@hirez.programming.kicks-ass.net> <20181217213126.lsqhyszoulel6uq6@treble> <20181217173644.391c2070@gandalf.local.home> <20181218000618.GA25620@tassilo.jf.intel.com> <20181218024916.vmfnyqzouhfxhyvc@treble> <20181218211501.GD25620@tassilo.jf.intel.com> <20181218165713.4309797a@gandalf.local.home> <20181218221338.GK25620@tassilo.jf.intel.com> X-Mailer: Claws Mail 3.16.0 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 18 Dec 2018 14:13:38 -0800 Andi Kleen wrote: > > Again, that's not the ftrace case. It doesn't care about more than one > > out of line instance. Thus, for this particular use, "used" should be > > good enough. > > You mean noinline used? I thought that someone said that "used" would also prevent inlining. But regardless, whatever it takes to not let the functions be inlined is indeed good enough. -- Steve > > Inlining would certainly break the test.