There were few noticeable formatting issues present in core cpufreq code. This
patch tries to fix them to make code look better. These are:
- Removing few extra blank lines
- Adding few blank lines
- replacing spaces with tabs
- removing unnecessary spaces
- rearranging code a bit
- Fixing multiline comments
- Break lines longer than 80 columns into multi-line.
At the end it also updates copyright information in cpufreq.c to include my name
for 2013.
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
---
drivers/cpufreq/cpufreq.c | 61 +++++++++++++++--------------------
drivers/cpufreq/cpufreq_governor.h | 4 +--
drivers/cpufreq/cpufreq_performance.c | 4 ---
drivers/cpufreq/cpufreq_powersave.c | 6 ++--
drivers/cpufreq/cpufreq_stats.c | 4 +--
drivers/cpufreq/cpufreq_userspace.c | 4 ---
include/linux/cpufreq.h | 41 ++++++++++++-----------
7 files changed, 52 insertions(+), 72 deletions(-)
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 2d53f47..7c38842 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@xxxxxxxx>
+ * (C) 2013 Viresh Kumar <viresh.kumar@xxxxxxxxxx>
*
* Oct 2005 - Ashok Raj <ashok.raj@xxxxxxxxx>
* 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
@@ -41,11 +41,12 @@
*/
static struct cpufreq_driver *cpufreq_driver;
static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data);
+static DEFINE_RWLOCK(cpufreq_driver_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);
/*
* cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure
@@ -150,7 +151,6 @@ 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);
@@ -220,7 +220,7 @@ 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)
{
@@ -233,7 +233,7 @@ 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);
@@ -248,7 +248,6 @@ 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)
{
@@ -294,6 +293,7 @@ void __cpufreq_notify_transition(struct cpufreq_policy *policy,
break;
}
}
+
/**
* cpufreq_notify_transition - call notifier chain and adjust_jiffies
* on frequency transition.
@@ -311,7 +311,6 @@ void cpufreq_notify_transition(struct cpufreq_policy *policy,
EXPORT_SYMBOL_GPL(cpufreq_notify_transition);
-
/*********************************************************************
* SYSFS INTERFACE *
*********************************************************************/
@@ -376,7 +375,6 @@ out:
return err;
}
-
/**
* cpufreq_per_cpu_attr_read() / show_##file_name() -
* print out cpufreq information
@@ -441,7 +439,6 @@ 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
*/
@@ -457,7 +454,6 @@ static ssize_t show_scaling_governor(struct cpufreq_policy *policy, char *buf)
return -EINVAL;
}
-
/**
* store_scaling_governor - store policy for the specified CPU
*/
@@ -480,8 +476,10 @@ 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;
@@ -1005,7 +1003,8 @@ 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;
@@ -1112,7 +1111,6 @@ 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;
@@ -1125,7 +1123,6 @@ 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 =
@@ -1136,7 +1133,8 @@ 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
@@ -1151,7 +1149,6 @@ 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);
@@ -1166,7 +1163,6 @@ 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
@@ -1212,7 +1208,6 @@ 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);
@@ -1271,7 +1266,6 @@ static struct subsys_interface cpufreq_interface = {
.remove_dev = cpufreq_remove_dev,
};
-
/**
* cpufreq_bp_suspend - Prepare the boot CPU for system suspend.
*
@@ -1408,11 +1402,10 @@ 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.
*
@@ -1448,7 +1441,6 @@ EXPORT_SYMBOL(cpufreq_unregister_notifier);
* GOVERNORS *
*********************************************************************/
-
int __cpufreq_driver_target(struct cpufreq_policy *policy,
unsigned int target_freq,
unsigned int relation)
@@ -1581,7 +1573,6 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
return ret;
}
-
int cpufreq_register_governor(struct cpufreq_governor *governor)
{
int err;
@@ -1606,7 +1597,6 @@ 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
@@ -1636,7 +1626,6 @@ void cpufreq_unregister_governor(struct cpufreq_governor *governor)
EXPORT_SYMBOL_GPL(cpufreq_unregister_governor);
-
/*********************************************************************
* POLICY INTERFACE *
*********************************************************************/
@@ -1665,7 +1654,6 @@ int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu)
}
EXPORT_SYMBOL(cpufreq_get_policy);
-
/*
* data : current policy.
* policy : policy to be set.
@@ -1699,8 +1687,10 @@ 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;
@@ -1802,8 +1792,10 @@ 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) {
@@ -1852,7 +1844,7 @@ 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,
};
/*********************************************************************
@@ -1864,7 +1856,7 @@ 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).
*
@@ -1931,11 +1923,10 @@ 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 e16a961..72e7994 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 ceee068..9fef7d6 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@xxxxxxxx>");
MODULE_DESCRIPTION("CPUfreq policy governor 'performance'");
MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/cpufreq_powersave.c b/drivers/cpufreq/cpufreq_powersave.c
index 2d948a1..32109a1 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@xxxxxxxx>
+ * Copyright (C) 2002 - 2003 Dominik Brodowski <linux@xxxxxxxx>
*
*
* 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@xxxxxxxx>");
MODULE_DESCRIPTION("CPUfreq policy governor 'powersave'");
MODULE_LICENSE("GPL");
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index fb65dec..6d35caa 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 bbeb9c0..c4f2dc3 100644
--- a/drivers/cpufreq/cpufreq_userspace.c
+++ b/drivers/cpufreq/cpufreq_userspace.c
@@ -104,7 +104,6 @@ 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", per_cpu(cpu_cur_freq, policy->cpu));
@@ -185,7 +184,6 @@ static int cpufreq_governor_userspace(struct cpufreq_policy *policy,
return rc;
}
-
#ifndef CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE
static
#endif
@@ -202,13 +200,11 @@ 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@xxxxxxxx>, "
"Russell King <rmk@xxxxxxxxxxxxxxxx>");
MODULE_DESCRIPTION("CPUfreq policy governor 'userspace'");
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 037d36a..dc204c3 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@xxxxxxxx>
+ * Copyright (C) 2001 Russell King
+ * (C) 2002 - 2003 Dominik Brodowski <linux@xxxxxxxx>
*
* 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 *
*********************************************************************/
@@ -148,17 +147,18 @@ 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
@@ -211,14 +211,12 @@ 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 *
*********************************************************************/
@@ -229,7 +227,7 @@ 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;
/*
@@ -277,11 +275,11 @@ 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;
@@ -342,7 +340,9 @@ int cpufreq_update_policy(unsigned int cpu);
bool have_governor_per_policy(void);
#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)
@@ -351,7 +351,9 @@ 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);
@@ -366,16 +368,14 @@ 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
@@ -395,7 +395,6 @@ extern struct cpufreq_governor cpufreq_gov_conservative;
#define CPUFREQ_DEFAULT_GOVERNOR (&cpufreq_gov_conservative)
#endif
-
/*********************************************************************
* FREQUENCY TABLE HELPERS *
*********************************************************************/
--
1.7.12.rc2.18.g61b472e
--
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