From: Yury Norov <yury.norov@gmail.com>
Date: Sun, 23 Jan 2022 18:38:50 +0000 (-0800)
Subject: irq: mips: replace cpumask_weight with cpumask_empty where appropriate
X-Git-Tag: v6.6.17~7322^2~17
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d72002ae67adb1c665e43970685b16645023d639;p=platform%2Fkernel%2Flinux-rpi.git

irq: mips: replace cpumask_weight with cpumask_empty where appropriate

bcm6345_l1_of_init() calls cpumask_weight() to check if any bit of a given
cpumask is set. We can do it more efficiently with cpumask_empty() because
cpumask_empty() stops traversing the cpumask as soon as it finds first set
bit, while cpumask_weight() counts all bits unconditionally.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
---

diff --git a/drivers/irqchip/irq-bcm6345-l1.c b/drivers/irqchip/irq-bcm6345-l1.c
index fd07921..142a743 100644
--- a/drivers/irqchip/irq-bcm6345-l1.c
+++ b/drivers/irqchip/irq-bcm6345-l1.c
@@ -315,7 +315,7 @@ static int __init bcm6345_l1_of_init(struct device_node *dn,
 			cpumask_set_cpu(idx, &intc->cpumask);
 	}
 
-	if (!cpumask_weight(&intc->cpumask)) {
+	if (cpumask_empty(&intc->cpumask)) {
 		ret = -ENODEV;
 		goto out_free;
 	}