linux-kernel - [tip:timers/core] hrtimer: Improve kernel message printing

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Message-ID: <tip-7a6e55375d5c584c7c11cfdcaa8ad9d6cccb419d@git.kernel.org>
Date:   Thu, 12 Jul 2018 12:33:54 -0700
From:   tip-bot for Geert Uytterhoeven <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     mingo@...nel.org, tglx@...utronix.de, geert+renesas@...der.be,
        hpa@...or.com, linux-kernel@...r.kernel.org
Subject: [tip:timers/core] hrtimer: Improve kernel message printing

Commit-ID:  7a6e55375d5c584c7c11cfdcaa8ad9d6cccb419d
Gitweb:     https://git.kernel.org/tip/7a6e55375d5c584c7c11cfdcaa8ad9d6cccb419d
Author:     Geert Uytterhoeven <geert+renesas@...der.be>
AuthorDate: Thu, 12 Jul 2018 16:41:18 +0200
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Thu, 12 Jul 2018 21:29:30 +0200

hrtimer: Improve kernel message printing

  - Join split message for easier grepping,
  - Use pr_*() instead of printk*(),
  - Use %u to format unsigned cpu numbers.

Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Link: https://lkml.kernel.org/r/20180712144118.8819-1-geert+renesas@glider.be

---
 kernel/time/hrtimer.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 055a4a728c00..5c2af16c7c14 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -718,8 +718,8 @@ static void hrtimer_switch_to_hres(void)
 	struct hrtimer_cpu_base *base = this_cpu_ptr(&hrtimer_bases);
 
 	if (tick_init_highres()) {
-		printk(KERN_WARNING "Could not switch to high resolution "
-				    "mode on CPU %d\n", base->cpu);
+		pr_warn("Could not switch to high resolution mode on CPU %u\n",
+			base->cpu);
 		return;
 	}
 	base->hres_active = 1;
@@ -1573,8 +1573,7 @@ retry:
 	else
 		expires_next = ktime_add(now, delta);
 	tick_program_event(expires_next, 1);
-	printk_once(KERN_WARNING "hrtimer: interrupt took %llu ns\n",
-		    ktime_to_ns(delta));
+	pr_warn_once("hrtimer: interrupt took %llu ns\n", ktime_to_ns(delta));
 }
 
 /* called with interrupts disabled */