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 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 50781C43441 for ; Wed, 28 Nov 2018 09:39:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2164920660 for ; Wed, 28 Nov 2018 09:39:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2164920660 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728288AbeK1UkL (ORCPT ); Wed, 28 Nov 2018 15:40:11 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:59221 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727662AbeK1UkL (ORCPT ); Wed, 28 Nov 2018 15:40:11 -0500 Received: from p4fea46ac.dip0.t-ipconnect.de ([79.234.70.172] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1gRwJE-0002Oc-CW; Wed, 28 Nov 2018 10:39:04 +0100 Date: Wed, 28 Nov 2018 10:39:03 +0100 (CET) From: Thomas Gleixner To: Tim Chen cc: "Lendacky, Thomas" , LKML , "x86@kernel.org" , Peter Zijlstra , Andy Lutomirski , Linus Torvalds , Jiri Kosina , Josh Poimboeuf , Andrea Arcangeli , David Woodhouse , Andi Kleen , Dave Hansen , Casey Schaufler , Asit Mallick , Arjan van de Ven , Jon Masters , Waiman Long , Greg KH , Dave Stewart , Kees Cook Subject: Re: [patch V2 18/28] x86/speculation: Prepare for per task indirect branch speculation control In-Reply-To: Message-ID: References: <20181125183328.318175777@linutronix.de> <20181125185005.176917199@linutronix.de> <7ec59a1a-4caf-24f6-3466-ee1d01594861@amd.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 27 Nov 2018, Tim Chen wrote: > I think it will be cleaner just to fold the msr update into > __speculation_ctrl_update to fix this issue. Yes, that looks nicer and avoids a couple of extra static_cpu_has() evaluations. I'll fold it into the proper places. Thanks, tglx