cpufreq: Clean up header files included in the core

This patch addresses the following issues in the header files in the
cpufreq core:
- Include headers in ascending order, so that we don't add same
many times by mistake.
- <asm/> must be included after <linux/>, so that they override
whatever they need to.
- Remove unnecessary includes.
- Don't include files already included by cpufreq.h or
cpufreq_governor.h.

[rjw: Changelog]
Signed-off-by: Viresh Kumar <[e-mail]>
Signed-off-by: Rafael J. Wysocki <[e-mail]>

drivers/cpufreq/cpufreq.c

···
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <asm/cputime.h>
-#include <linux/kernel.h>
-#include <linux/kernel_stat.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/notifier.h>
+#include <linux/cpu.h>
 #include <linux/cpufreq.h>
 #include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/tick.h>
 #include <linux/device.h>
-#include <linux/slab.h>
-#include <linux/cpu.h>
-#include <linux/completion.h>
+#include <linux/init.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 #include <linux/syscore_ops.h>
-
+#include <linux/tick.h>
 #include <trace/events/power.h>
 
 /**

drivers/cpufreq/cpufreq_conservative.c

···
  * published by the Free Software Foundation.
  */
 
-#include <linux/cpufreq.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/kernel_stat.h>
-#include <linux/kobject.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/notifier.h>
-#include <linux/percpu-defs.h>
 #include <linux/slab.h>
-#include <linux/sysfs.h>
-#include <linux/types.h>
-
 #include "cpufreq_governor.h"
 
 /* Conservative governor macros */

drivers/cpufreq/cpufreq_governor.c

···
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <asm/cputime.h>
-#include <linux/cpufreq.h>
-#include <linux/cpumask.h>
 #include <linux/export.h>
 #include <linux/kernel_stat.h>
-#include <linux/mutex.h>
 #include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/workqueue.h>
 
 #include "cpufreq_governor.h"
 

drivers/cpufreq/cpufreq_governor.h

···
 #define _CPUFREQ_GOVERNOR_H
 
 #include <linux/cpufreq.h>
-#include <linux/kobject.h>
+#include <linux/kernel_stat.h>
+#include <linux/module.h>
 #include <linux/mutex.h>
-#include <linux/workqueue.h>
-#include <linux/sysfs.h>
 
 /*
  * The polling frequency depends on the capability of the processor. Default

drivers/cpufreq/cpufreq_ondemand.c

···
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/cpufreq.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/kernel_stat.h>
-#include <linux/kobject.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
+#include <linux/cpu.h>
 #include <linux/percpu-defs.h>
 #include <linux/slab.h>
-#include <linux/sysfs.h>
 #include <linux/tick.h>
-#include <linux/types.h>
-#include <linux/cpu.h>
-
 #include "cpufreq_governor.h"
 
 /* On-demand governor macros */

drivers/cpufreq/cpufreq_performance.c

···
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/cpufreq.h>
 #include <linux/init.h>
+#include <linux/module.h>
 
 static int cpufreq_governor_performance(struct cpufreq_policy *policy,
 					unsigned int event)

drivers/cpufreq/cpufreq_powersave.c

···
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/cpufreq.h>
 #include <linux/init.h>
+#include <linux/module.h>
 
 static int cpufreq_governor_powersave(struct cpufreq_policy *policy,
 					unsigned int event)

drivers/cpufreq/cpufreq_stats.c

···
  * published by the Free Software Foundation.
  */
 
-#include <linux/kernel.h>
-#include <linux/slab.h>
 #include <linux/cpu.h>
-#include <linux/sysfs.h>
 #include <linux/cpufreq.h>
 #include <linux/module.h>
-#include <linux/jiffies.h>
-#include <linux/percpu.h>
-#include <linux/kobject.h>
-#include <linux/spinlock.h>
-#include <linux/notifier.h>
+#include <linux/slab.h>
 #include <asm/cputime.h>
 
 static spinlock_t cpufreq_stats_lock;

drivers/cpufreq/freq_table.c

···
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
 #include <linux/cpufreq.h>
+#include <linux/module.h>
 
 /*********************************************************************
  *                     FREQUENCY TABLE HELPERS                       *

include/linux/cpufreq.h

···
 #ifndef _LINUX_CPUFREQ_H
 #define _LINUX_CPUFREQ_H
 
-#include <asm/cputime.h>
-#include <linux/mutex.h>
-#include <linux/notifier.h>
-#include <linux/threads.h>
-#include <linux/kobject.h>
-#include <linux/sysfs.h>
-#include <linux/completion.h>
-#include <linux/workqueue.h>
 #include <linux/cpumask.h>
-#include <asm/div64.h>
+#include <linux/completion.h>
+#include <linux/kobject.h>
+#include <linux/notifier.h>
+#include <linux/sysfs.h>
 
 #define CPUFREQ_NAME_LEN 16
 /* Print length for names. Extra 1 space for accomodating '\n' in prints */