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=-5.1 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,USER_AGENT_SANE_1 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 093F0C4BA12 for ; Wed, 26 Feb 2020 13:16:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C29542467D for ; Wed, 26 Feb 2020 13:16:54 +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="cGWoguhw" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726997AbgBZNQx (ORCPT ); Wed, 26 Feb 2020 08:16:53 -0500 Received: from merlin.infradead.org ([205.233.59.134]:39704 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726878AbgBZNQx (ORCPT ); Wed, 26 Feb 2020 08:16:53 -0500 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=dBTEGeYdwOYe1m9MR0swroLBpZXLyk3mtt8wrgV6Ovc=; b=cGWoguhwhW+FQQ8dKZd+JTjhwk BRfx7XVWuUB3DRzatCE2HAGxCVK+FemfvM1wF1N+9NIC+q4PoQWoRPcoHgwNduhGIZ6xv6CTSVclb mP7JT/nGL1GrjHsOc6cW+4wlxVp6/qkWJrW7kCOIbRmyRGol6ScP038NpnPreUqhzlRXsdT833EsH phK31L0UPA5dN8aerwDKGwFEvJ2iu4xSAtdLMFiXgS+1I2dGE672cOmb+b1mjTgL8XiPTSVS/XQE1 iPiwD/y15qhQDPs+tbK45pOqqTnbXYJHKamMcMfe3p5rYAbSZ4F2bPZepE4nxOP4DczXqKdlPfJfg R/SxhgAA==; 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 1j6wXq-0005Pn-4i; Wed, 26 Feb 2020 13:16:10 +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 4AF5E300130; Wed, 26 Feb 2020 14:14:11 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id 8FC282B264902; Wed, 26 Feb 2020 14:16:06 +0100 (CET) Date: Wed, 26 Feb 2020 14:16:06 +0100 From: Peter Zijlstra To: Steven Rostedt Cc: Andy Lutomirski , LKML , linux-arch , Ingo Molnar , Joel Fernandes , Greg KH , gustavo@embeddedor.com, Thomas Gleixner , paulmck@kernel.org, Josh Triplett , Mathieu Desnoyers , Lai Jiangshan , Tony Luck , Frederic Weisbecker , Dan Carpenter , Masami Hiramatsu Subject: Re: [PATCH v4 05/27] x86: Replace ist_enter() with nmi_enter() Message-ID: <20200226131606.GL14946@hirez.programming.kicks-ass.net> References: <20200221134215.328642621@infradead.org> <20200221202246.GA14897@hirez.programming.kicks-ass.net> <20200224104346.GJ14946@hirez.programming.kicks-ass.net> <20200224112708.4f307ba3@gandalf.local.home> <20200224163409.GJ18400@hirez.programming.kicks-ass.net> <20200224114754.0fb798c1@gandalf.local.home> <20200224213139.GO11457@worktop.programming.kicks-ass.net> <20200224170231.3807931d@gandalf.local.home> <20200226102509.GU18400@hirez.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200226102509.GU18400@hirez.programming.kicks-ass.net> 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 Wed, Feb 26, 2020 at 11:25:09AM +0100, Peter Zijlstra wrote: > Subject: sh/ftrace: Move arch_ftrace_nmi_{enter,exit} into nmi exception > From: Peter Zijlstra > Date: Mon Feb 24 22:26:21 CET 2020 > > SuperH is the last remaining user of arch_ftrace_nmi_{enter,exit}(), > remove it from the generic code and into the SuperH code. > > Signed-off-by: Peter Zijlstra (Intel) > --- > --- a/arch/sh/kernel/traps.c > +++ b/arch/sh/kernel/traps.c > @@ -170,11 +170,21 @@ BUILD_TRAP_HANDLER(bug) > force_sig(SIGTRAP); > } > > +#ifdef CONFIG_HAVE_DYNAMIC_FTRACE build robot just informed me that this ought to s/HAVE_// > +extern void arch_ftrace_nmi_enter(void); > +extern void arch_ftrace_nmi_exit(void); > +#else > +static inline void arch_ftrace_nmi_enter(void) { } > +static inline void arch_ftrace_nmi_exit(void) { } > +#endif