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@linaro.org --- 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@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 @@ -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@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 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@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 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@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 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@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 * *********************************************************************/ @@ -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 * *********************************************************************/