From 71c1a517e3da992fbbafb5c0b82a87c7eafc3383 Mon Sep 17 00:00:00 2001 From: Yury Norov Date: Sun, 23 Jan 2022 10:38:44 -0800 Subject: arch/alpha: replace cpumask_weight with cpumask_empty where appropriate common_shutdown_1() 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 --- arch/alpha/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/alpha/kernel/process.c') diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c index 5f8527081da9..0d4bc60828bf 100644 --- a/arch/alpha/kernel/process.c +++ b/arch/alpha/kernel/process.c @@ -125,7 +125,7 @@ common_shutdown_1(void *generic_ptr) /* Wait for the secondaries to halt. */ set_cpu_present(boot_cpuid, false); set_cpu_possible(boot_cpuid, false); - while (cpumask_weight(cpu_present_mask)) + while (!cpumask_empty(cpu_present_mask)) barrier(); #endif -- cgit v1.2.3-59-g8ed1b