From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756782AbbLDWS6 (ORCPT ); Fri, 4 Dec 2015 17:18:58 -0500 Received: from mga14.intel.com ([192.55.52.115]:55986 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751164AbbLDWS5 (ORCPT ); Fri, 4 Dec 2015 17:18:57 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,382,1444719600"; d="scan'208";a="834575172" Date: Fri, 4 Dec 2015 14:18:56 -0800 From: Andi Kleen To: Borislav Petkov Cc: Ingo Molnar , linux-tip-commits@vger.kernel.org, vincent.weaver@maine.edu, eranian@google.com, hpa@zytor.com, efault@gmx.de, peterz@infradead.org, jolsa@redhat.com, torvalds@linux-foundation.org, tglx@linutronix.de, rostedt@goodmis.org, acme@redhat.com, linux-kernel@vger.kernel.org Subject: Re: [tip:perf/core] x86, tracing, perf: Add trace point for MSR accesses Message-ID: <20151204221856.GG18534@tassilo.jf.intel.com> References: <1449018060-1742-3-git-send-email-andi@firstfloor.org> <20151204121115.GA21524@pd.tnic> <20151204182802.GF18534@tassilo.jf.intel.com> <20151204183017.GO21177@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151204183017.GO21177@pd.tnic> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Dec 04, 2015 at 07:30:17PM +0100, Borislav Petkov wrote: > On Fri, Dec 04, 2015 at 10:28:02AM -0800, Andi Kleen wrote: > > Because making them GPL would prevent any non GPL driver from > > using MSRs with tracing compiled in, which doesn't make any sense. > > I know what EXPORT_SYMBOL_GPL means - I'm questioning the need of making > them available to non-GPL drivers. MSRs are not a GPLed facility. -Andi