diff options
| author | Yury Norov <yury.norov@gmail.com> | 2022-01-23 10:38:45 -0800 |
|---|---|---|
| committer | Yury Norov <yury.norov@gmail.com> | 2022-06-03 06:52:57 -0700 |
| commit | b6dad11d9cb105681abbfc3d57aae4b21bd0c8c4 (patch) | |
| tree | 3db3b3b49913bf1fa0aba26577938f8425632678 | |
| parent | 71c1a517e3da992fbbafb5c0b82a87c7eafc3383 (diff) | |
| download | linux-b6dad11d9cb105681abbfc3d57aae4b21bd0c8c4.tar.bz2 | |
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>
| -rw-r--r-- | arch/ia64/kernel/setup.c | 2 |
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 */ |