linux-kernel - [PATCH] init: check printed flag to skip printing message

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Message-ID: <1DD7BFEDD3147247B1355BEFEFE4665237994F30F4@HQMAIL04.nvidia.com>
Date:	Thu, 8 Mar 2012 15:44:16 -0800
From:	Diwakar Tundlam <dtundlam@...dia.com>
To:	'Andrew Morton' <akpm@...ux-foundation.org>,
	'Phil Carmody' <ext-phil.2.carmody@...ia.com>,
	'Russell King' <rmk+kernel@....linux.org.uk>,
	'Greg Kroah-Hartman' <gregkh@...e.de>,
	'Sameer Nanda' <snanda@...omium.org>
CC:	Peter De Schrijver <pdeschrijver@...dia.com>,
	"'linux-kernel@...r.kernel.org'" <linux-kernel@...r.kernel.org>,
	'Linus Torvalds' <torvalds@...ux-foundation.org>
Subject: [PATCH] init: check printed flag to skip printing message

Otherwise the 'Calibration skipped' message gets printed everytime a CPU is
hotplugged in, cluttering console for systems that frequently hotplug CPUs.

Signed-off-by: Diwakar Tundlam <dtundlam@...dia.com>
---
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/init/calibrate.c b/init/calibrate.c
index 5f117ca..fda0a7b 100644
--- a/init/calibrate.c
+++ b/init/calibrate.c
@@ -267,7 +267,8 @@ void __cpuinit calibrate_delay(void)
 
	if (per_cpu(cpu_loops_per_jiffy, this_cpu)) {
		lpj = per_cpu(cpu_loops_per_jiffy, this_cpu);
-		pr_info("Calibrating delay loop (skipped) "
+		if (!printed)
+			pr_info("Calibrating delay loop (skipped) "
 			"already calibrated this CPU");
	} else if (preset_lpj) {
		lpj = preset_lpj;
--
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