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Commit e0c0ba73 authored by Rusty Russell's avatar Rusty Russell
Browse files

cpumask: Use find_last_bit() 



Impact: cleanup

There's one obvious place to use it: to find the highest possible cpu.

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent ab53d472

init/main.c

+1 −6
Original line number Original line Diff line number Diff line
@@ -380,12 +380,7 @@ EXPORT_SYMBOL(nr_cpu_ids); 
/* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */

/* An arch may set nr_cpu_ids earlier if needed, so this would be redundant */

static void __init setup_nr_cpu_ids(void)

static void __init setup_nr_cpu_ids(void)

{

{

	int cpu, highest_cpu = 0;

	nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;



	for_each_possible_cpu(cpu)

		highest_cpu = cpu;



	nr_cpu_ids = highest_cpu + 1;

}

}





#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA

#ifndef CONFIG_HAVE_SETUP_PER_CPU_AREA