diff --git a/kernel/dma/map_benchmark.c b/kernel/dma/map_benchmark.c
index 130feaa8de7fc9..b7f8bb7a1e5c59 100644
--- a/kernel/dma/map_benchmark.c
+++ b/kernel/dma/map_benchmark.c
@@ -124,7 +124,6 @@ static int do_map_benchmark(struct map_benchmark_data *map)
 	struct task_struct **tsk;
 	int threads = map->bparam.threads;
 	int node = map->bparam.node;
-	const cpumask_t *cpu_mask = cpumask_of_node(node);
 	u64 loops;
 	int ret = 0;
 	int i;
@@ -145,7 +144,7 @@ static int do_map_benchmark(struct map_benchmark_data *map)
 		}
 
 		if (node != NUMA_NO_NODE)
-			kthread_bind_mask(tsk[i], cpu_mask);
+			kthread_bind_mask(tsk[i], cpumask_of_node(node));
 	}
 
 	/* clear the old value in the previous benchmark */