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Message-ID: <ad034210-24ca-5eb6-a359-ae3151805c98@arm.com>
Date: Wed, 29 Jan 2020 11:30:42 +0000
From: Lukasz Luba <lukasz.luba@....com>
To: Chanwoo Choi <cw00.choi@...sung.com>, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org
Cc: chanwoo@...nel.org, myungjoo.ham@...sung.com,
kyungmin.park@...sung.com
Subject: Re: [PATCH 1/2] PM / devfreq: Remove unneeded extern keyword
On 1/29/20 11:20 AM, Chanwoo Choi wrote:
> Remove unneeded extern keyword from devfreq-related header file
> and adjust the indentation of function parameter to keep the
> consistency in header file
>
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> ---
> drivers/devfreq/governor.h | 17 +++----
> include/linux/devfreq.h | 100 ++++++++++++++++++-------------------
> 2 files changed, 57 insertions(+), 60 deletions(-)
>
> diff --git a/drivers/devfreq/governor.h b/drivers/devfreq/governor.h
> index dc7533ccc3db..5ba3e051b1d0 100644
> --- a/drivers/devfreq/governor.h
> +++ b/drivers/devfreq/governor.h
> @@ -57,17 +57,16 @@ struct devfreq_governor {
> unsigned int event, void *data);
> };
>
> -extern void devfreq_monitor_start(struct devfreq *devfreq);
> -extern void devfreq_monitor_stop(struct devfreq *devfreq);
> -extern void devfreq_monitor_suspend(struct devfreq *devfreq);
> -extern void devfreq_monitor_resume(struct devfreq *devfreq);
> -extern void devfreq_interval_update(struct devfreq *devfreq,
> - unsigned int *delay);
> +void devfreq_monitor_start(struct devfreq *devfreq);
> +void devfreq_monitor_stop(struct devfreq *devfreq);
> +void devfreq_monitor_suspend(struct devfreq *devfreq);
> +void devfreq_monitor_resume(struct devfreq *devfreq);
> +void devfreq_interval_update(struct devfreq *devfreq, unsigned int *delay);
>
> -extern int devfreq_add_governor(struct devfreq_governor *governor);
> -extern int devfreq_remove_governor(struct devfreq_governor *governor);
> +int devfreq_add_governor(struct devfreq_governor *governor);
> +int devfreq_remove_governor(struct devfreq_governor *governor);
>
> -extern int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);
> +int devfreq_update_status(struct devfreq *devfreq, unsigned long freq);
>
> static inline int devfreq_update_stats(struct devfreq *df)
> {
> diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
> index c6f82d4bec9f..82630fafacde 100644
> --- a/include/linux/devfreq.h
> +++ b/include/linux/devfreq.h
> @@ -201,24 +201,23 @@ struct devfreq_freqs {
> };
>
> #if defined(CONFIG_PM_DEVFREQ)
> -extern struct devfreq *devfreq_add_device(struct device *dev,
> - struct devfreq_dev_profile *profile,
> - const char *governor_name,
> - void *data);
> -extern int devfreq_remove_device(struct devfreq *devfreq);
> -extern struct devfreq *devm_devfreq_add_device(struct device *dev,
> - struct devfreq_dev_profile *profile,
> - const char *governor_name,
> - void *data);
> -extern void devm_devfreq_remove_device(struct device *dev,
> - struct devfreq *devfreq);
> +struct devfreq *devfreq_add_device(struct device *dev,
> + struct devfreq_dev_profile *profile,
> + const char *governor_name,
> + void *data);
> +int devfreq_remove_device(struct devfreq *devfreq);
> +struct devfreq *devm_devfreq_add_device(struct device *dev,
> + struct devfreq_dev_profile *profile,
> + const char *governor_name,
> + void *data);
> +void devm_devfreq_remove_device(struct device *dev, struct devfreq *devfreq);
>
> /* Supposed to be called by PM callbacks */
> -extern int devfreq_suspend_device(struct devfreq *devfreq);
> -extern int devfreq_resume_device(struct devfreq *devfreq);
> +int devfreq_suspend_device(struct devfreq *devfreq);
> +int devfreq_resume_device(struct devfreq *devfreq);
>
> -extern void devfreq_suspend(void);
> -extern void devfreq_resume(void);
> +void devfreq_suspend(void);
> +void devfreq_resume(void);
>
> /**
> * update_devfreq() - Reevaluate the device and configure frequency
> @@ -226,35 +225,34 @@ extern void devfreq_resume(void);
> *
> * Note: devfreq->lock must be held
> */
> -extern int update_devfreq(struct devfreq *devfreq);
> +int update_devfreq(struct devfreq *devfreq);
>
> /* Helper functions for devfreq user device driver with OPP. */
> -extern struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
> - unsigned long *freq, u32 flags);
> -extern int devfreq_register_opp_notifier(struct device *dev,
> - struct devfreq *devfreq);
> -extern int devfreq_unregister_opp_notifier(struct device *dev,
> - struct devfreq *devfreq);
> -extern int devm_devfreq_register_opp_notifier(struct device *dev,
> - struct devfreq *devfreq);
> -extern void devm_devfreq_unregister_opp_notifier(struct device *dev,
> - struct devfreq *devfreq);
> -extern int devfreq_register_notifier(struct devfreq *devfreq,
> - struct notifier_block *nb,
> - unsigned int list);
> -extern int devfreq_unregister_notifier(struct devfreq *devfreq,
> - struct notifier_block *nb,
> - unsigned int list);
> -extern int devm_devfreq_register_notifier(struct device *dev,
> +struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
> + unsigned long *freq, u32 flags);
> +int devfreq_register_opp_notifier(struct device *dev,
> + struct devfreq *devfreq);
> +int devfreq_unregister_opp_notifier(struct device *dev,
> + struct devfreq *devfreq);
> +int devm_devfreq_register_opp_notifier(struct device *dev,
> + struct devfreq *devfreq);
> +void devm_devfreq_unregister_opp_notifier(struct device *dev,
> + struct devfreq *devfreq);
> +int devfreq_register_notifier(struct devfreq *devfreq,
> + struct notifier_block *nb,
> + unsigned int list);
> +int devfreq_unregister_notifier(struct devfreq *devfreq,
> + struct notifier_block *nb,
> + unsigned int list);
> +int devm_devfreq_register_notifier(struct device *dev,
> struct devfreq *devfreq,
> struct notifier_block *nb,
> unsigned int list);
> -extern void devm_devfreq_unregister_notifier(struct device *dev,
> +void devm_devfreq_unregister_notifier(struct device *dev,
> struct devfreq *devfreq,
> struct notifier_block *nb,
> unsigned int list);
> -extern struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev,
> - int index);
> +struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev, int index);
>
> #if IS_ENABLED(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)
> /**
> @@ -311,9 +309,9 @@ struct devfreq_passive_data {
>
> #else /* !CONFIG_PM_DEVFREQ */
> static inline struct devfreq *devfreq_add_device(struct device *dev,
> - struct devfreq_dev_profile *profile,
> - const char *governor_name,
> - void *data)
> + struct devfreq_dev_profile *profile,
> + const char *governor_name,
> + void *data)
> {
> return ERR_PTR(-ENOSYS);
> }
> @@ -350,31 +348,31 @@ static inline void devfreq_suspend(void) {}
> static inline void devfreq_resume(void) {}
>
> static inline struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
> - unsigned long *freq, u32 flags)
> + unsigned long *freq, u32 flags)
> {
> return ERR_PTR(-EINVAL);
> }
>
> static inline int devfreq_register_opp_notifier(struct device *dev,
> - struct devfreq *devfreq)
> + struct devfreq *devfreq)
> {
> return -EINVAL;
> }
>
> static inline int devfreq_unregister_opp_notifier(struct device *dev,
> - struct devfreq *devfreq)
> + struct devfreq *devfreq)
> {
> return -EINVAL;
> }
>
> static inline int devm_devfreq_register_opp_notifier(struct device *dev,
> - struct devfreq *devfreq)
> + struct devfreq *devfreq)
> {
> return -EINVAL;
> }
>
> static inline void devm_devfreq_unregister_opp_notifier(struct device *dev,
> - struct devfreq *devfreq)
> + struct devfreq *devfreq)
> {
> }
>
> @@ -393,22 +391,22 @@ static inline int devfreq_unregister_notifier(struct devfreq *devfreq,
> }
>
> static inline int devm_devfreq_register_notifier(struct device *dev,
> - struct devfreq *devfreq,
> - struct notifier_block *nb,
> - unsigned int list)
> + struct devfreq *devfreq,
> + struct notifier_block *nb,
> + unsigned int list)
> {
> return 0;
> }
>
> static inline void devm_devfreq_unregister_notifier(struct device *dev,
> - struct devfreq *devfreq,
> - struct notifier_block *nb,
> - unsigned int list)
> + struct devfreq *devfreq,
> + struct notifier_block *nb,
> + unsigned int list)
> {
> }
>
> static inline struct devfreq *devfreq_get_devfreq_by_phandle(struct device *dev,
> - int index)
> + int index)
> {
> return ERR_PTR(-ENODEV);
> }
>
Looks good to me.
Reviewed-by: Lukasz Luba <lukasz.luba@....com>
Regards,
Lukasz
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