arm64/numa: remove some useless code

When the deleted code is executed, only the bit of cpu0 was set on
cpu_possible_mask. So that, only set_cpu_numa_node(0, NUMA_NO_NODE); will
be executed. And map_cpu_to_node(0, 0) will soon be called. So these code
can be safely removed.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>

diff --git a/arch/arm64/mm/numa.c b/arch/arm64/mm/numa.c
index 087064d..0a15f01 100644 (file)
--- a/arch/arm64/mm/numa.c
+++ b/arch/arm64/mm/numa.c
@@ -95,7 +95,6 @@ void numa_clear_node(unsigned int cpu)
  */
 static void __init setup_node_to_cpumask_map(void)
 {
-       unsigned int cpu;
        int node;
 
        /* setup nr_node_ids if not done yet */
@@ -108,9 +107,6 @@ static void __init setup_node_to_cpumask_map(void)
                cpumask_clear(node_to_cpumask_map[node]);
        }
 
-       for_each_possible_cpu(cpu)
-               set_cpu_numa_node(cpu, NUMA_NO_NODE);
-
        /* cpumask_of_node() will now work */
        pr_debug("Node to cpumask map for %d nodes\n", nr_node_ids);
 }