cpufreq: Fix minor formatting issues

There were a few noticeable formatting issues in core cpufreq code.
This cleans them up to make code look better.  The changes include:
 - Whitespace cleanup.
 - Rearrangements of code.
 - Multiline comments fixes.
 - Formatting changes to fit 80 columns.

Copyright information in cpufreq.c is also updated to include my name
for 2013.

[rjw: Changelog]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

7 files changed, 53 insertions, 73 deletions

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 43cf60832468..075edeff358c 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -3,6 +3,7 @@
  *
  *  Copyright (C) 2001 Russell King
  *            (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
+ *            (C) 2013 Viresh Kumar <viresh.kumar@linaro.org>
  *
  *  Oct 2005 - Ashok Raj <ashok.raj@intel.com>
  *      Added handling for CPU hotplug
@@ -12,7 +13,6 @@
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
- *
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -44,12 +44,13 @@
  */
 static struct cpufreq_driver *cpufreq_driver;
 static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data);
+static DEFINE_RWLOCK(cpufreq_driver_lock);
+static DEFINE_MUTEX(cpufreq_governor_lock);
+
 #ifdef CONFIG_HOTPLUG_CPU
 /* This one keeps track of the previously set governor of a removed CPU */
 static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
 #endif
-static DEFINE_RWLOCK(cpufreq_driver_lock);
-static DEFINE_MUTEX(cpufreq_governor_lock);
 
 /*
  * cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure
@@ -199,7 +200,6 @@ static struct cpufreq_policy *__cpufreq_cpu_get(unsigned int cpu, bool sysfs)
         if (!try_module_get(cpufreq_driver->owner))
                 goto err_out_unlock;
 
-
         /* get the CPU */
         data = per_cpu(cpufreq_cpu_data, cpu);
 
@@ -269,7 +269,7 @@ static void cpufreq_cpu_put_sysfs(struct cpufreq_policy *data)
  */
 #ifndef CONFIG_SMP
 static unsigned long l_p_j_ref;
-static unsigned int  l_p_j_ref_freq;
+static unsigned int l_p_j_ref_freq;
 
 static void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
 {
@@ -282,7 +282,7 @@ static void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
                 pr_debug("saving %lu as reference value for loops_per_jiffy; "
                         "freq is %u kHz\n", l_p_j_ref, l_p_j_ref_freq);
         }
-        if ((val == CPUFREQ_POSTCHANGE  && ci->old != ci->new) ||
+        if ((val == CPUFREQ_POSTCHANGE && ci->old != ci->new) ||
             (val == CPUFREQ_RESUMECHANGE || val == CPUFREQ_SUSPENDCHANGE)) {
                 loops_per_jiffy = cpufreq_scale(l_p_j_ref, l_p_j_ref_freq,
                                                                 ci->new);
@@ -297,7 +297,6 @@ static inline void adjust_jiffies(unsigned long val, struct cpufreq_freqs *ci)
 }
 #endif
 
-
 void __cpufreq_notify_transition(struct cpufreq_policy *policy,
                 struct cpufreq_freqs *freqs, unsigned int state)
 {
@@ -343,6 +342,7 @@ void __cpufreq_notify_transition(struct cpufreq_policy *policy,
                 break;
         }
 }
+
 /**
  * cpufreq_notify_transition - call notifier chain and adjust_jiffies
  * on frequency transition.
@@ -360,7 +360,6 @@ void cpufreq_notify_transition(struct cpufreq_policy *policy,
 EXPORT_SYMBOL_GPL(cpufreq_notify_transition);
 
 
-
 /*********************************************************************
  *                          SYSFS INTERFACE                          *
  *********************************************************************/
@@ -425,7 +424,6 @@ out:
         return err;
 }
 
-
 /**
  * cpufreq_per_cpu_attr_read() / show_##file_name() -
  * print out cpufreq information
@@ -490,7 +488,6 @@ static ssize_t show_cpuinfo_cur_freq(struct cpufreq_policy *policy,
         return sprintf(buf, "%u\n", cur_freq);
 }
 
-
 /**
  * show_scaling_governor - show the current policy for the specified CPU
  */
@@ -506,7 +503,6 @@ static ssize_t show_scaling_governor(struct cpufreq_policy *policy, char *buf)
         return -EINVAL;
 }
 
-
 /**
  * store_scaling_governor - store policy for the specified CPU
  */
@@ -529,8 +525,10 @@ static ssize_t store_scaling_governor(struct cpufreq_policy *policy,
                                                 &new_policy.governor))
                 return -EINVAL;
 
-        /* Do not use cpufreq_set_policy here or the user_policy.max
-           will be wrongly overridden */
+        /*
+         * Do not use cpufreq_set_policy here or the user_policy.max
+         * will be wrongly overridden
+         */
         ret = __cpufreq_set_policy(policy, &new_policy);
 
         policy->user_policy.policy = policy->policy;
@@ -1094,7 +1092,8 @@ static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
  * Caller should already have policy_rwsem in write mode for this CPU.
  * This routine frees the rwsem before returning.
  */
-static int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif)
+static int __cpufreq_remove_dev(struct device *dev,
+                struct subsys_interface *sif)
 {
         unsigned int cpu = dev->id, ret, cpus;
         unsigned long flags;
@@ -1201,7 +1200,6 @@ static int __cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif
         return 0;
 }
 
-
 static int cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif)
 {
         unsigned int cpu = dev->id;
@@ -1214,7 +1212,6 @@ static int cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif)
         return retval;
 }
 
-
 static void handle_update(struct work_struct *work)
 {
         struct cpufreq_policy *policy =
@@ -1225,7 +1222,8 @@ static void handle_update(struct work_struct *work)
 }
 
 /**
- *      cpufreq_out_of_sync - If actual and saved CPU frequency differs, we're in deep trouble.
+ *      cpufreq_out_of_sync - If actual and saved CPU frequency differs, we're
+ *      in deep trouble.
  *      @cpu: cpu number
  *      @old_freq: CPU frequency the kernel thinks the CPU runs at
  *      @new_freq: CPU frequency the CPU actually runs at
@@ -1240,7 +1238,6 @@ static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq,
         struct cpufreq_freqs freqs;
         unsigned long flags;
 
-
         pr_debug("Warning: CPU frequency out of sync: cpufreq and timing "
                "core thinks of %u, is %u kHz.\n", old_freq, new_freq);
 
@@ -1255,7 +1252,6 @@ static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq,
         cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 }
 
-
 /**
  * cpufreq_quick_get - get the CPU frequency (in kHz) from policy->cur
  * @cpu: CPU number
@@ -1301,7 +1297,6 @@ unsigned int cpufreq_quick_get_max(unsigned int cpu)
 }
 EXPORT_SYMBOL(cpufreq_quick_get_max);
 
-
 static unsigned int __cpufreq_get(unsigned int cpu)
 {
         struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);
@@ -1360,7 +1355,6 @@ static struct subsys_interface cpufreq_interface = {
         .remove_dev     = cpufreq_remove_dev,
 };
 
-
 /**
  * cpufreq_bp_suspend - Prepare the boot CPU for system suspend.
  *
@@ -1497,11 +1491,10 @@ int cpufreq_register_notifier(struct notifier_block *nb, unsigned int list)
 }
 EXPORT_SYMBOL(cpufreq_register_notifier);
 
-
 /**
  *      cpufreq_unregister_notifier - unregister a driver with cpufreq
  *      @nb: notifier block to be unregistered
- *      @list: CPUFREQ_TRANSITION_NOTIFIER or CPUFREQ_POLICY_NOTIFIER
+ *      @list: CPUFREQ_TRANSITION_NOTIFIER or CPUFREQ_POLICY_NOTIFIER
  *
  *      Remove a driver from the CPU frequency notifier list.
  *
@@ -1537,7 +1530,6 @@ EXPORT_SYMBOL(cpufreq_unregister_notifier);
  *                              GOVERNORS                            *
  *********************************************************************/
 
-
 int __cpufreq_driver_target(struct cpufreq_policy *policy,
                             unsigned int target_freq,
                             unsigned int relation)
@@ -1678,7 +1670,6 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
         return ret;
 }
 
-
 int cpufreq_register_governor(struct cpufreq_governor *governor)
 {
         int err;
@@ -1703,7 +1694,6 @@ int cpufreq_register_governor(struct cpufreq_governor *governor)
 }
 EXPORT_SYMBOL_GPL(cpufreq_register_governor);
 
-
 void cpufreq_unregister_governor(struct cpufreq_governor *governor)
 {
 #ifdef CONFIG_HOTPLUG_CPU
@@ -1733,7 +1723,6 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor)
 EXPORT_SYMBOL_GPL(cpufreq_unregister_governor);
 
 
-
 /*********************************************************************
  *                          POLICY INTERFACE                         *
  *********************************************************************/
@@ -1762,7 +1751,6 @@ int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu)
 }
 EXPORT_SYMBOL(cpufreq_get_policy);
 
-
 /*
  * data   : current policy.
  * policy : policy to be set.
@@ -1796,8 +1784,10 @@ static int __cpufreq_set_policy(struct cpufreq_policy *data,
         blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
                         CPUFREQ_INCOMPATIBLE, policy);
 
-        /* verify the cpu speed can be set within this limit,
-           which might be different to the first one */
+        /*
+         * verify the cpu speed can be set within this limit, which might be
+         * different to the first one
+         */
         ret = cpufreq_driver->verify(policy);
         if (ret)
                 goto error_out;
@@ -1899,8 +1889,10 @@ int cpufreq_update_policy(unsigned int cpu)
         policy.policy = data->user_policy.policy;
         policy.governor = data->user_policy.governor;
 
-        /* BIOS might change freq behind our back
-          -> ask driver for current freq and notify governors about a change */
+        /*
+         * BIOS might change freq behind our back
+         * -> ask driver for current freq and notify governors about a change
+         */
         if (cpufreq_driver->get) {
                 policy.cur = cpufreq_driver->get(cpu);
                 if (!data->cur) {
@@ -1949,7 +1941,7 @@ static int __cpuinit cpufreq_cpu_callback(struct notifier_block *nfb,
 }
 
 static struct notifier_block __refdata cpufreq_cpu_notifier = {
-    .notifier_call = cpufreq_cpu_callback,
+        .notifier_call = cpufreq_cpu_callback,
 };
 
 /*********************************************************************
@@ -1961,7 +1953,7 @@ static struct notifier_block __refdata cpufreq_cpu_notifier = {
  * @driver_data: A struct cpufreq_driver containing the values#
  * submitted by the CPU Frequency driver.
  *
- *   Registers a CPU Frequency driver to this core code. This code
+ * Registers a CPU Frequency driver to this core code. This code
  * returns zero on success, -EBUSY when another driver got here first
  * (and isn't unregistered in the meantime).
  *
@@ -2028,11 +2020,10 @@ err_null_driver:
 }
 EXPORT_SYMBOL_GPL(cpufreq_register_driver);
 
-
 /**
  * cpufreq_unregister_driver - unregister the current CPUFreq driver
  *
- *    Unregister the current CPUFreq driver. Only call this if you have
+ * Unregister the current CPUFreq driver. Only call this if you have
  * the right to do so, i.e. if you have succeeded in initialising before!
  * Returns zero if successful, and -EINVAL if the cpufreq_driver is
  * currently not initialised.
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index e7bbf767380d..6663ec3b3056 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -81,7 +81,7 @@ static ssize_t show_##file_name##_gov_sys				\
         return sprintf(buf, "%u\n", tuners->file_name);                 \
 }                                                                       \
                                                                         \
-static ssize_t show_##file_name##_gov_pol                                       \
+static ssize_t show_##file_name##_gov_pol                               \
 (struct cpufreq_policy *policy, char *buf)                              \
 {                                                                       \
         struct dbs_data *dbs_data = policy->governor_data;              \
@@ -91,7 +91,7 @@ static ssize_t show_##file_name##_gov_pol					\
 
 #define store_one(_gov, file_name)                                      \
 static ssize_t store_##file_name##_gov_sys                              \
-(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count)   \
+(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count) \
 {                                                                       \
         struct dbs_data *dbs_data = _gov##_dbs_cdata.gdbs_data;         \
         return store_##file_name(dbs_data, buf, count);                 \
diff --git a/drivers/cpufreq/cpufreq_performance.c b/drivers/cpufreq/cpufreq_performance.c
index ceee06849b91..9fef7d6e4e6a 100644
--- a/drivers/cpufreq/cpufreq_performance.c
+++ b/drivers/cpufreq/cpufreq_performance.c
@@ -17,7 +17,6 @@
 #include <linux/cpufreq.h>
 #include <linux/init.h>
 
-
 static int cpufreq_governor_performance(struct cpufreq_policy *policy,
                                         unsigned int event)
 {
@@ -44,19 +43,16 @@ struct cpufreq_governor cpufreq_gov_performance = {
         .owner          = THIS_MODULE,
 };
 
-
 static int __init cpufreq_gov_performance_init(void)
 {
         return cpufreq_register_governor(&cpufreq_gov_performance);
 }
 
-
 static void __exit cpufreq_gov_performance_exit(void)
 {
         cpufreq_unregister_governor(&cpufreq_gov_performance);
 }
 
-
 MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
 MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
 MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/cpufreq_powersave.c b/drivers/cpufreq/cpufreq_powersave.c
index 2d948a171155..32109a14f5dc 100644
--- a/drivers/cpufreq/cpufreq_powersave.c
+++ b/drivers/cpufreq/cpufreq_powersave.c
@@ -1,7 +1,7 @@
 /*
- *  linux/drivers/cpufreq/cpufreq_powersave.c
+ * linux/drivers/cpufreq/cpufreq_powersave.c
  *
- *  Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
+ * Copyright (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
  *
  *
  * This program is free software; you can redistribute it and/or modify
@@ -48,13 +48,11 @@ static int __init cpufreq_gov_powersave_init(void)
         return cpufreq_register_governor(&cpufreq_gov_powersave);
 }
 
-
 static void __exit cpufreq_gov_powersave_exit(void)
 {
         cpufreq_unregister_governor(&cpufreq_gov_powersave);
 }
 
-
 MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>");
 MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");
 MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index fb65decffa28..6d35caa91167 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -27,7 +27,7 @@ static spinlock_t cpufreq_stats_lock;
 struct cpufreq_stats {
         unsigned int cpu;
         unsigned int total_trans;
-        unsigned long long  last_time;
+        unsigned long long last_time;
         unsigned int max_state;
         unsigned int state_num;
         unsigned int last_index;
@@ -116,7 +116,7 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
                 len += snprintf(buf + len, PAGE_SIZE - len, "%9u: ",
                                 stat->freq_table[i]);
 
-                for (j = 0; j < stat->state_num; j++)   {
+                for (j = 0; j < stat->state_num; j++) {
                         if (len >= PAGE_SIZE)
                                 break;
                         len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c
index 5dc77b7a7594..03078090b5f7 100644
--- a/drivers/cpufreq/cpufreq_userspace.c
+++ b/drivers/cpufreq/cpufreq_userspace.c
@@ -55,7 +55,6 @@ static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq)
         return ret;
 }
 
-
 static ssize_t show_speed(struct cpufreq_policy *policy, char *buf)
 {
         return sprintf(buf, "%u\n", policy->cur);
@@ -101,7 +100,6 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
         return rc;
 }
 
-
 #ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE
 static
 #endif
@@ -118,13 +116,11 @@ static int __init cpufreq_gov_userspace_init(void)
         return cpufreq_register_governor(&cpufreq_gov_userspace);
 }
 
-
 static void __exit cpufreq_gov_userspace_exit(void)
 {
         cpufreq_unregister_governor(&cpufreq_gov_userspace);
 }
 
-
 MODULE_AUTHOR("Dominik Brodowski <linux@brodo.de>, "
                 "Russell King <rmk@arm.linux.org.uk>");
 MODULE_DESCRIPTION("CPUfreq policy governor 'userspace'");
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 125719d41285..3c7ee2f90370 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -1,8 +1,8 @@
 /*
- *  linux/include/linux/cpufreq.h
+ * linux/include/linux/cpufreq.h
  *
- *  Copyright (C) 2001 Russell King
- *            (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
+ * Copyright (C) 2001 Russell King
+ *           (C) 2002 - 2003 Dominik Brodowski <linux@brodo.de>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -26,7 +26,6 @@
 /* Print length for names. Extra 1 space for accomodating '\n' in prints */
 #define CPUFREQ_NAME_PLEN (CPUFREQ_NAME_LEN + 1)
 
-
 /*********************************************************************
  *                     CPUFREQ NOTIFIER INTERFACE                    *
  *********************************************************************/
@@ -153,17 +152,18 @@ struct cpufreq_freqs {
         u8 flags;               /* flags of cpufreq_driver, see below. */
 };
 
-
 /**
- * cpufreq_scale - "old * mult / div" calculation for large values (32-bit-arch safe)
+ * cpufreq_scale - "old * mult / div" calculation for large values (32-bit-arch
+ * safe)
  * @old:   old value
  * @div:   divisor
  * @mult:  multiplier
  *
  *
- *    new = old * mult / div
+ * new = old * mult / div
  */
-static inline unsigned long cpufreq_scale(unsigned long old, u_int div, u_int mult)
+static inline unsigned long cpufreq_scale(unsigned long old, u_int div,
+                u_int mult)
 {
 #if BITS_PER_LONG == 32
 
@@ -216,14 +216,12 @@ extern int __cpufreq_driver_target(struct cpufreq_policy *policy,
                                    unsigned int target_freq,
                                    unsigned int relation);
 
-
 extern int __cpufreq_driver_getavg(struct cpufreq_policy *policy,
                                    unsigned int cpu);
 
 int cpufreq_register_governor(struct cpufreq_governor *governor);
 void cpufreq_unregister_governor(struct cpufreq_governor *governor);
 
-
 /*********************************************************************
  *                      CPUFREQ DRIVER INTERFACE                     *
  *********************************************************************/
@@ -234,7 +232,7 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor);
 struct freq_attr;
 
 struct cpufreq_driver {
-        struct module           *owner;
+        struct module           *owner;
         char                    name[CPUFREQ_NAME_LEN];
         u8                      flags;
         /*
@@ -282,11 +280,11 @@ struct cpufreq_driver {
 int cpufreq_register_driver(struct cpufreq_driver *driver_data);
 int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
 
-
 void cpufreq_notify_transition(struct cpufreq_policy *policy,
                 struct cpufreq_freqs *freqs, unsigned int state);
 
-static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy, unsigned int min, unsigned int max)
+static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
+                unsigned int min, unsigned int max)
 {
         if (policy->min < min)
                 policy->min = min;
@@ -349,7 +347,9 @@ bool have_governor_per_policy(void);
 struct kobject *get_governor_parent_kobj(struct cpufreq_policy *policy);
 
 #ifdef CONFIG_CPU_FREQ
-/* query the current CPU frequency (in kHz). If zero, cpufreq couldn't detect it */
+/*
+ * query the current CPU frequency (in kHz). If zero, cpufreq couldn't detect it
+ */
 unsigned int cpufreq_get(unsigned int cpu);
 #else
 static inline unsigned int cpufreq_get(unsigned int cpu)
@@ -358,7 +358,9 @@ static inline unsigned int cpufreq_get(unsigned int cpu)
 }
 #endif
 
-/* query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it */
+/*
+ * query the last known CPU freq (in kHz). If zero, cpufreq couldn't detect it
+ */
 #ifdef CONFIG_CPU_FREQ
 unsigned int cpufreq_quick_get(unsigned int cpu);
 unsigned int cpufreq_quick_get_max(unsigned int cpu);
@@ -373,16 +375,14 @@ static inline unsigned int cpufreq_quick_get_max(unsigned int cpu)
 }
 #endif
 
-
 /*********************************************************************
  *                       CPUFREQ DEFAULT GOVERNOR                    *
  *********************************************************************/
 
-
 /*
-  Performance governor is fallback governor if any other gov failed to
-  auto load due latency restrictions
-*/
+ * Performance governor is fallback governor if any other gov failed to auto
+ * load due latency restrictions
+ */
 #ifdef CONFIG_CPU_FREQ_GOV_PERFORMANCE
 extern struct cpufreq_governor cpufreq_gov_performance;
 #endif
@@ -402,7 +402,6 @@ extern struct cpufreq_governor cpufreq_gov_conservative;
 #define CPUFREQ_DEFAULT_GOVERNOR        (&cpufreq_gov_conservative)
 #endif
 
-
 /*********************************************************************
  *                     FREQUENCY TABLE HELPERS                       *
  *********************************************************************/