linux-kernel - [PATCH 22/22] clockevents: use cpumask_weight_eq() in tick_cleanup_dead

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Message-Id: <20220510154750.212913-23-yury.norov@gmail.com>
Date:   Tue, 10 May 2022 08:47:50 -0700
From:   Yury Norov <yury.norov@...il.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        David Laight <David.Laight@...LAB.COM>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Joe Perches <joe@...ches.com>,
        Julia Lawall <Julia.Lawall@...ia.fr>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>,
        Nicholas Piggin <npiggin@...il.com>,
        Nicolas Palix <nicolas.palix@...g.fr>,
        Peter Zijlstra <peterz@...radead.org>,
        Rasmus Villemoes <linux@...musvillemoes.dk>,
        Matti Vaittinen <Matti.Vaittinen@...rohmeurope.com>,
        linux-kernel@...r.kernel.org
Cc:     Yury Norov <yury.norov@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>
Subject: [PATCH 22/22] clockevents: use cpumask_weight_eq() in tick_cleanup_dead_cpu()

Replace cpumask_weight() with cpumask_weight_eq(..., 1) because the it may
return earlier.

CC: Thomas Gleixner <tglx@...utronix.de>
CC: linux-kernel@...r.kernel.org
Signed-off-by: Yury Norov <yury.norov@...il.com>
---
 kernel/time/clockevents.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 5d85014d59b5..fa651263650f 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -648,7 +648,7 @@ void tick_cleanup_dead_cpu(int cpu)
 	 */
 	list_for_each_entry_safe(dev, tmp, &clockevent_devices, list) {
 		if (cpumask_test_cpu(cpu, dev->cpumask) &&
-		    cpumask_weight(dev->cpumask) == 1 &&
+		    cpumask_weight_eq(dev->cpumask, 1) &&
 		    !tick_is_broadcast_device(dev)) {
 			BUG_ON(!clockevent_state_detached(dev));
 			list_del(&dev->list);
-- 
2.32.0