From: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Date: Sun, 26 Feb 2023 16:53:20 +0000 (+0700)
Subject: workqueue: Simplify a pr_warn() call in wq_select_unbound_cpu()
X-Git-Tag: v6.6.17~4973^2~6
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=a8ec5880bd82b834717770cba4596381ffd50545;p=platform%2Fkernel%2Flinux-rpi.git

workqueue: Simplify a pr_warn() call in wq_select_unbound_cpu()

Use pr_warn_once() to achieve the same thing. It's simpler.

Signed-off-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Reviewed-by: Lai Jiangshan <jiangshanlai@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index b8b541c..3f1fabe 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1392,15 +1392,13 @@ static bool is_chained_work(struct workqueue_struct *wq)
  */
 static int wq_select_unbound_cpu(int cpu)
 {
-	static bool printed_dbg_warning;
 	int new_cpu;
 
 	if (likely(!wq_debug_force_rr_cpu)) {
 		if (cpumask_test_cpu(cpu, wq_unbound_cpumask))
 			return cpu;
-	} else if (!printed_dbg_warning) {
-		pr_warn("workqueue: round-robin CPU selection forced, expect performance impact\n");
-		printed_dbg_warning = true;
+	} else {
+		pr_warn_once("workqueue: round-robin CPU selection forced, expect performance impact\n");
 	}
 
 	if (cpumask_empty(wq_unbound_cpumask))