From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757162AbZJ1BqG (ORCPT ); Tue, 27 Oct 2009 21:46:06 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756867AbZJ1BqF (ORCPT ); Tue, 27 Oct 2009 21:46:05 -0400 Received: from cn.fujitsu.com ([222.73.24.84]:55357 "EHLO song.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1756073AbZJ1BqE (ORCPT ); Tue, 27 Oct 2009 21:46:04 -0400 Message-ID: <4AE7A217.8030008@cn.fujitsu.com> Date: Wed, 28 Oct 2009 09:44:55 +0800 From: Li Zefan User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b3pre) Gecko/20090513 Fedora/3.0-2.3.beta2.fc11 Thunderbird/3.0b2 MIME-Version: 1.0 To: Ingo Molnar CC: Steven Rostedt , Frederic Weisbecker , LKML Subject: [PATCH] tracing: Fix to use unused attribute Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ____ftrace_check_##name() is used for compile-time check on F_printk() only, so it should be marked as __unused instead of __used. Signed-off-by: Li Zefan --- I'm thinking about introducing __always_unused, comparing to __maybe_unused. --- kernel/trace/trace_export.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c index 934d81f..85309fc 100644 --- a/kernel/trace/trace_export.c +++ b/kernel/trace/trace_export.c @@ -48,11 +48,12 @@ struct ____ftrace_##name { \ tstruct \ }; \ -static void __used ____ftrace_check_##name(void) \ +static void __attribute__((unused)) \ +____ftrace_check_##name(void) \ { \ struct ____ftrace_##name *__entry = NULL; \ \ - /* force cmpile-time check on F_printk() */ \ + /* force compile-time check on F_printk() */ \ printk(print); \ } -- 1.6.3