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authorYury Norov <yury.norov@gmail.com>2022-01-23 10:38:45 -0800
committerYury Norov <yury.norov@gmail.com>2022-06-03 06:52:57 -0700
commitb6dad11d9cb105681abbfc3d57aae4b21bd0c8c4 (patch)
tree3db3b3b49913bf1fa0aba26577938f8425632678 /arch
parent71c1a517e3da992fbbafb5c0b82a87c7eafc3383 (diff)
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 <yury.norov@gmail.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/ia64/kernel/setup.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 5010348fa21b..fd6301eafa9d 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 */