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Diffstat (limited to 'drivers/cpufreq/cpufreq_stats.c')
-rw-r--r--drivers/cpufreq/cpufreq_stats.c74
1 files changed, 35 insertions, 39 deletions
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index c0ff97d375d7..5a62d678dd19 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -2,7 +2,7 @@
* drivers/cpufreq/cpufreq_stats.c
*
* Copyright (C) 2003-2004 Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>.
- * (C) 2004 Zou Nan hai <nanhai.zou@intel.com>.
+ * (C) 2004 Zou Nan hai <nanhai.zou@intel.com>.
*
* 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
@@ -23,7 +23,7 @@
static spinlock_t cpufreq_stats_lock;
-#define CPUFREQ_STATDEVICE_ATTR(_name,_mode,_show) \
+#define CPUFREQ_STATDEVICE_ATTR(_name, _mode, _show) \
static struct freq_attr _attr_##_name = {\
.attr = {.name = __stringify(_name), .mode = _mode, }, \
.show = _show,\
@@ -50,8 +50,7 @@ struct cpufreq_stats_attribute {
ssize_t(*show) (struct cpufreq_stats *, char *);
};
-static int
-cpufreq_stats_update (unsigned int cpu)
+static int cpufreq_stats_update(unsigned int cpu)
{
struct cpufreq_stats *stat;
unsigned long long cur_time;
@@ -68,8 +67,7 @@ cpufreq_stats_update (unsigned int cpu)
return 0;
}
-static ssize_t
-show_total_trans(struct cpufreq_policy *policy, char *buf)
+static ssize_t show_total_trans(struct cpufreq_policy *policy, char *buf)
{
struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu);
if (!stat)
@@ -78,8 +76,7 @@ show_total_trans(struct cpufreq_policy *policy, char *buf)
per_cpu(cpufreq_stats_table, stat->cpu)->total_trans);
}
-static ssize_t
-show_time_in_state(struct cpufreq_policy *policy, char *buf)
+static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf)
{
ssize_t len = 0;
int i;
@@ -89,14 +86,14 @@ show_time_in_state(struct cpufreq_policy *policy, char *buf)
cpufreq_stats_update(stat->cpu);
for (i = 0; i < stat->state_num; i++) {
len += sprintf(buf + len, "%u %llu\n", stat->freq_table[i],
- (unsigned long long)cputime64_to_clock_t(stat->time_in_state[i]));
+ (unsigned long long)
+ cputime64_to_clock_t(stat->time_in_state[i]));
}
return len;
}
#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
-static ssize_t
-show_trans_table(struct cpufreq_policy *policy, char *buf)
+static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
{
ssize_t len = 0;
int i, j;
@@ -139,11 +136,11 @@ show_trans_table(struct cpufreq_policy *policy, char *buf)
return PAGE_SIZE;
return len;
}
-CPUFREQ_STATDEVICE_ATTR(trans_table,0444,show_trans_table);
+CPUFREQ_STATDEVICE_ATTR(trans_table, 0444, show_trans_table);
#endif
-CPUFREQ_STATDEVICE_ATTR(total_trans,0444,show_total_trans);
-CPUFREQ_STATDEVICE_ATTR(time_in_state,0444,show_time_in_state);
+CPUFREQ_STATDEVICE_ATTR(total_trans, 0444, show_total_trans);
+CPUFREQ_STATDEVICE_ATTR(time_in_state, 0444, show_time_in_state);
static struct attribute *default_attrs[] = {
&_attr_total_trans.attr,
@@ -158,8 +155,7 @@ static struct attribute_group stats_attr_group = {
.name = "stats"
};
-static int
-freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq)
+static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq)
{
int index;
for (index = 0; index < stat->max_state; index++)
@@ -183,8 +179,7 @@ static void cpufreq_stats_free_table(unsigned int cpu)
cpufreq_cpu_put(policy);
}
-static int
-cpufreq_stats_create_table (struct cpufreq_policy *policy,
+static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
struct cpufreq_frequency_table *table)
{
unsigned int i, j, count = 0, ret = 0;
@@ -194,7 +189,8 @@ cpufreq_stats_create_table (struct cpufreq_policy *policy,
unsigned int cpu = policy->cpu;
if (per_cpu(cpufreq_stats_table, cpu))
return -EBUSY;
- if ((stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL)) == NULL)
+ stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL);
+ if ((stat) == NULL)
return -ENOMEM;
data = cpufreq_cpu_get(cpu);
@@ -203,13 +199,14 @@ cpufreq_stats_create_table (struct cpufreq_policy *policy,
goto error_get_fail;
}
- if ((ret = sysfs_create_group(&data->kobj, &stats_attr_group)))
+ ret = sysfs_create_group(&data->kobj, &stats_attr_group);
+ if (ret)
goto error_out;
stat->cpu = cpu;
per_cpu(cpufreq_stats_table, cpu) = stat;
- for (i=0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
+ for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
unsigned int freq = table[i].frequency;
if (freq == CPUFREQ_ENTRY_INVALID)
continue;
@@ -255,9 +252,8 @@ error_get_fail:
return ret;
}
-static int
-cpufreq_stat_notifier_policy (struct notifier_block *nb, unsigned long val,
- void *data)
+static int cpufreq_stat_notifier_policy(struct notifier_block *nb,
+ unsigned long val, void *data)
{
int ret;
struct cpufreq_policy *policy = data;
@@ -268,14 +264,14 @@ cpufreq_stat_notifier_policy (struct notifier_block *nb, unsigned long val,
table = cpufreq_frequency_get_table(cpu);
if (!table)
return 0;
- if ((ret = cpufreq_stats_create_table(policy, table)))
+ ret = cpufreq_stats_create_table(policy, table);
+ if (ret)
return ret;
return 0;
}
-static int
-cpufreq_stat_notifier_trans (struct notifier_block *nb, unsigned long val,
- void *data)
+static int cpufreq_stat_notifier_trans(struct notifier_block *nb,
+ unsigned long val, void *data)
{
struct cpufreq_freqs *freq = data;
struct cpufreq_stats *stat;
@@ -340,19 +336,20 @@ static struct notifier_block notifier_trans_block = {
.notifier_call = cpufreq_stat_notifier_trans
};
-static int
-__init cpufreq_stats_init(void)
+static int __init cpufreq_stats_init(void)
{
int ret;
unsigned int cpu;
spin_lock_init(&cpufreq_stats_lock);
- if ((ret = cpufreq_register_notifier(&notifier_policy_block,
- CPUFREQ_POLICY_NOTIFIER)))
+ ret = cpufreq_register_notifier(&notifier_policy_block,
+ CPUFREQ_POLICY_NOTIFIER);
+ if (ret)
return ret;
- if ((ret = cpufreq_register_notifier(&notifier_trans_block,
- CPUFREQ_TRANSITION_NOTIFIER))) {
+ ret = cpufreq_register_notifier(&notifier_trans_block,
+ CPUFREQ_TRANSITION_NOTIFIER);
+ if (ret) {
cpufreq_unregister_notifier(&notifier_policy_block,
CPUFREQ_POLICY_NOTIFIER);
return ret;
@@ -364,8 +361,7 @@ __init cpufreq_stats_init(void)
}
return 0;
}
-static void
-__exit cpufreq_stats_exit(void)
+static void __exit cpufreq_stats_exit(void)
{
unsigned int cpu;
@@ -379,10 +375,10 @@ __exit cpufreq_stats_exit(void)
}
}
-MODULE_AUTHOR ("Zou Nan hai <nanhai.zou@intel.com>");
-MODULE_DESCRIPTION ("'cpufreq_stats' - A driver to export cpufreq stats "
+MODULE_AUTHOR("Zou Nan hai <nanhai.zou@intel.com>");
+MODULE_DESCRIPTION("'cpufreq_stats' - A driver to export cpufreq stats "
"through sysfs filesystem");
-MODULE_LICENSE ("GPL");
+MODULE_LICENSE("GPL");
module_init(cpufreq_stats_init);
module_exit(cpufreq_stats_exit);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 03:59:21 +0100