From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933241AbaHYOsJ (ORCPT ); Mon, 25 Aug 2014 10:48:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:8469 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933138AbaHYOqa (ORCPT ); Mon, 25 Aug 2014 10:46:30 -0400 From: Jiri Olsa To: linux-kernel@vger.kernel.org Cc: Jiri Olsa , Andi Kleen , Arnaldo Carvalho de Melo , Corey Ashford , David Ahern , Frederic Weisbecker , Ingo Molnar , "Jen-Cheng(Tommy) Huang" , Namhyung Kim , Paul Mackerras , Peter Zijlstra , Stephane Eranian Subject: [PATCH 5/9] perf tools: Add pr_warning_once debug macro Date: Mon, 25 Aug 2014 16:45:39 +0200 Message-Id: <1408977943-16594-6-git-send-email-jolsa@kernel.org> In-Reply-To: <1408977943-16594-1-git-send-email-jolsa@kernel.org> References: <1408977943-16594-1-git-send-email-jolsa@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Adding pr_warning_once debug macro to display pr_warning message just once. It will be used in following patch. Cc: Andi Kleen Cc: Arnaldo Carvalho de Melo Cc: Corey Ashford Cc: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jen-Cheng(Tommy) Huang Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Signed-off-by: Jiri Olsa --- tools/perf/util/debug.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h index be264d6f3b30..be0399c2703d 100644 --- a/tools/perf/util/debug.h +++ b/tools/perf/util/debug.h @@ -31,6 +31,18 @@ extern int debug_ordered_events; #define pr_debug3(fmt, ...) pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__) #define pr_debug4(fmt, ...) pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__) +#define pr_once(fmt, pr, ...) \ + do { \ + static int __warned; \ + \ + if (!__warned) { \ + pr(fmt, ##__VA_ARGS__); \ + __warned = 1; \ + } \ + } while (0) + +#define pr_warning_once(fmt, ...) pr_once(fmt, pr_warning, ##__VA_ARGS__) + #define pr_time_N(n, var, t, fmt, ...) \ eprintf_time(n, var, t, fmt, ##__VA_ARGS__) -- 1.8.3.1