From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757876AbZCRS6c (ORCPT ); Wed, 18 Mar 2009 14:58:32 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1758141AbZCRS6J (ORCPT ); Wed, 18 Mar 2009 14:58:09 -0400 Received: from hera.kernel.org ([140.211.167.34]:51715 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756915AbZCRS6G (ORCPT ); Wed, 18 Mar 2009 14:58:06 -0400 Date: Wed, 18 Mar 2009 18:57:28 GMT From: Ingo Molnar To: linux-tip-commits@vger.kernel.org Cc: linux-kernel@vger.kernel.org, hpa@zytor.com, mingo@redhat.com, jaswinderrajput@gmail.com, fweisbec@gmail.com, rostedt@goodmis.org, tglx@linutronix.de, mingo@elte.hu Reply-To: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org, jaswinderrajput@gmail.com, fweisbec@gmail.com, rostedt@goodmis.org, tglx@linutronix.de, mingo@elte.hu In-Reply-To: <1237394936.3132.1.camel@localhost.localdomain> References: <1237394936.3132.1.camel@localhost.localdomain> Subject: [tip:tracing/ftrace] tracepoints: dont update zero-sized tracepoint sections Message-ID: Git-Commit-ID: ec625cb29e66824f7ce41082617aeb93fa4e42e2 X-Mailer: tip-git-log-daemon MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.0 (hera.kernel.org [127.0.0.1]); Wed, 18 Mar 2009 18:57:30 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: ec625cb29e66824f7ce41082617aeb93fa4e42e2 Gitweb: http://git.kernel.org/tip/ec625cb29e66824f7ce41082617aeb93fa4e42e2 Author: Ingo Molnar AuthorDate: Wed, 18 Mar 2009 19:54:04 +0100 Commit: Ingo Molnar CommitDate: Wed, 18 Mar 2009 19:55:00 +0100 tracepoints: dont update zero-sized tracepoint sections Zero-sized tracepoint sections can occur if tracing is enabled but no tracepoint is defined. Do not emit a warning in that case. Cc: Frederic Weisbecker Cc: Steven Rostedt Cc: Jaswinder Singh Rajput LKML-Reference: <1237394936.3132.1.camel@localhost.localdomain> Signed-off-by: Ingo Molnar --- kernel/tracepoint.c | 4 +--- 1 files changed, 1 insertions(+), 3 deletions(-) diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index adf2873..1ef5d3a 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -278,10 +278,8 @@ tracepoint_update_probe_range(struct tracepoint *begin, struct tracepoint *end) struct tracepoint *iter; struct tracepoint_entry *mark_entry; - if (!begin) { - WARN_ON_ONCE(1); + if (!begin) return; - } mutex_lock(&tracepoints_mutex); for (iter = begin; iter < end; iter++) {