From: Yury Norov Date: Sun, 23 Jan 2022 18:38:45 +0000 (-0800) Subject: arch/ia64: replace cpumask_weight with cpumask_empty where appropriate X-Git-Tag: v6.1-rc5~1137^2~20 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b6dad11d9cb105681abbfc3d57aae4b21bd0c8c4;p=platform%2Fkernel%2Flinux-starfive.git arch/ia64: replace cpumask_weight with cpumask_empty where appropriate setup_arch() 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 --- diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 5010348..fd6301e 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -572,7 +572,7 @@ setup_arch (char **cmdline_p) #ifdef CONFIG_ACPI_HOTPLUG_CPU prefill_possible_map(); #endif - per_cpu_scan_finalize((cpumask_weight(&early_cpu_possible_map) == 0 ? + per_cpu_scan_finalize((cpumask_empty(&early_cpu_possible_map) ? 32 : cpumask_weight(&early_cpu_possible_map)), additional_cpus > 0 ? additional_cpus : 0); #endif /* CONFIG_ACPI_NUMA */