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-rw-r--r--init/main.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/init/main.c b/init/main.c
index 84d3732c0ce..546ebd2f44b 100644
--- a/init/main.c
+++ b/init/main.c
@@ -380,12 +380,7 @@ EXPORT_SYMBOL(nr_cpu_ids);
/* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */
static void __init setup_nr_cpu_ids(void)
{
- int cpu, highest_cpu = 0;
-
- for_each_possible_cpu(cpu)
- highest_cpu = cpu;
-
- nr_cpu_ids = highest_cpu + 1;
+ nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
}
#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA