[PATCH -next] drivers/base/arch_topology.c: remove superfluous header

[Mianhan Liu]

arch_topology.c hasn't use any macro or function declared in linux/percpu.h,
linux/smp.h and linux/string.h.
Thus, these files can be removed from arch_topology.c safely without
affecting the compilation of the drivers/base/ module

Signed-off-by: Mianhan Liu <liumh1@xxxxxxxxxxxxxxxxxxx>

---
 drivers/base/arch_topology.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 434076659..92200873b 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -12,15 +12,12 @@
 #include <linux/device.h>
 #include <linux/of.h>
 #include <linux/slab.h>
-#include <linux/string.h>
 #include <linux/sched/topology.h>
 #include <linux/cpuset.h>
 #include <linux/cpumask.h>
 #include <linux/init.h>
-#include <linux/percpu.h>
 #include <linux/rcupdate.h>
 #include <linux/sched.h>
-#include <linux/smp.h>
 
 static DEFINE_PER_CPU(struct scale_freq_data __rcu *, sft_data);
 static struct cpumask scale_freq_counters_mask;
-- 
2.25.1