From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751997Ab2INLOS (ORCPT ); Fri, 14 Sep 2012 07:14:18 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:43608 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751175Ab2INLN3 (ORCPT ); Fri, 14 Sep 2012 07:13:29 -0400 Message-ID: <50531151.9020202@gmail.com> Date: Fri, 14 Sep 2012 05:13:21 -0600 From: David Ahern User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7; rv:15.0) Gecko/20120907 Thunderbird/15.0.1 MIME-Version: 1.0 To: Ingo Molnar CC: acme@ghostprotocols.net, linux-kernel@vger.kernel.org, peterz@infradead.org, Robert Richter Subject: Re: [PATCH 3/3 v2] perf tool: give user better message if precise is not supported References: <1347569955-54626-1-git-send-email-dsahern@gmail.com> <1347569955-54626-4-git-send-email-dsahern@gmail.com> <20120914054344.GB9043@gmail.com> In-Reply-To: <20120914054344.GB9043@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 9/13/12 11:43 PM, Ingo Molnar wrote: >> v2: softened message to 'may not be' supported per Robert's suggestion > > Well, either it's supported on this machine or it's not - why > does the text have to be so unsure about it? Because EOPNOTSUPP is returned for more than just precise mode. We cannot say with certainty that the precise attribute caused that errno. David