From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753273AbcB2OVQ (ORCPT ); Mon, 29 Feb 2016 09:21:16 -0500 Received: from mail.kernel.org ([198.145.29.136]:49859 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752207AbcB2OVP (ORCPT ); Mon, 29 Feb 2016 09:21:15 -0500 Date: Mon, 29 Feb 2016 11:21:11 -0300 From: Arnaldo Carvalho de Melo To: Peter Zijlstra Cc: Steven Rostedt , Ingo Molnar , Taeung Song , linux-kernel@vger.kernel.org, Jiri Olsa , Namhyung Kim , Thomas Gleixner , Lai Jiangshan Subject: Re: [RFC] Re: [PATCH v3 1/2] tracing/syscalls: Rename variable 'nr' to '__syscall_nr' Message-ID: <20160229142111.GG8720@kernel.org> References: <1456492446-5896-1-git-send-email-treeze.taeung@gmail.com> <20160226135713.GU8720@kernel.org> <20160227151357.GE6356@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160227151357.GE6356@twins.programming.kicks-ass.net> X-Url: http://acmel.wordpress.com 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 Em Sat, Feb 27, 2016 at 04:13:57PM +0100, Peter Zijlstra escreveu: > On Fri, Feb 26, 2016 at 10:57:13AM -0300, Arnaldo Carvalho de Melo wrote: > > > Ingo, Peter, have you guys followed this case? > > > > Summary: Some tracepoint have multiple fields with the same name, 'nr', > > the first one is a unique syscall ID, the other is a syscall > > argument: > > I'm all for pushing the limits on tracepoint ABI. I'm all for making it > less rigid. So if we can get away with changing this under the promise > of helping fixup fallout, I'm all for it. > > That means we can always just change tracepoints, and they're not really > ABI at all. I'll take that as an Acked-by, and will apply Taeung/Steven's patch for the kernel + the builtin-trace.c change, Ok everybody? - Arnaldo