diff mbox series

[1/2] cpufreq: unify the show() and store() styles of attr

Message ID 20220306021250.64315-1-zhanglianjie@uniontech.com (mailing list archive)
State Changes Requested, archived
Headers show
Series [1/2] cpufreq: unify the show() and store() styles of attr | expand

Commit Message

Lianjie Zhang March 6, 2022, 2:12 a.m. UTC
Unify the show() and store() styles of attr,
change show_xxx(), store_xxx() to xxx_show(), xxx_store().

Signed-off-by: zhanglianjie <zhanglianjie@uniontech.com>

--
2.20.1

Comments

Viresh Kumar March 7, 2022, 5:39 a.m. UTC | #1
On 06-03-22, 10:12, zhanglianjie wrote:
> Unify the show() and store() styles of attr,

What is the problem with current naming that you are facing ? What's
there to unify? Are there two types of names used here ?

If that is so, please explain them first as I am not able to
understand why you are making this change.
Viresh Kumar March 7, 2022, 5:52 a.m. UTC | #2
On 07-03-22, 13:50, zhanglianjie wrote:
> Usually /sys directory under the file, the corresponding Attribute contains
> .show and .store, and their naming style is filename_show() and
> filename_store(). But all naming style in 'cpufreq' is show_filename() and
> store_filename(), So you need to change naming style.

This is something that is present within the kernel and not exposed to
userspace. I don't see why we would need to make this change and what
good it brings.

I would have supported this if cpufreq itself had different names, but
for this one, No.
Viresh Kumar March 7, 2022, 5:53 a.m. UTC | #3
On 07-03-22, 11:22, Viresh Kumar wrote:
> On 07-03-22, 13:50, zhanglianjie wrote:
> > Usually /sys directory under the file, the corresponding Attribute contains
> > .show and .store, and their naming style is filename_show() and
> > filename_store(). But all naming style in 'cpufreq' is show_filename() and
> > store_filename(), So you need to change naming style.
> 
> This is something that is present within the kernel and not exposed to
> userspace. I don't see why we would need to make this change and what
> good it brings.
> 
> I would have supported this if cpufreq itself had different names, but
> for this one, No.

Or is it that you want to reuse __ATTR_RW() and __ATTR_RO() and the
current naming doesn't allow you that ?

I will let Rafael take a call on that.
Rafael J. Wysocki March 7, 2022, 6:19 p.m. UTC | #4
On Sun, Mar 6, 2022 at 3:13 AM zhanglianjie <zhanglianjie@uniontech.com> wrote:
>
> Unify the show() and store() styles of attr,
> change show_xxx(), store_xxx() to xxx_show(), xxx_store().

You need to say something about motivation too.

> Signed-off-by: zhanglianjie <zhanglianjie@uniontech.com>
>
> diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
> index 08515f7e515f..b6bd0ff35323 100644
> --- a/drivers/cpufreq/cpufreq_conservative.c
> +++ b/drivers/cpufreq/cpufreq_conservative.c
> @@ -146,7 +146,7 @@ static unsigned int cs_dbs_update(struct cpufreq_policy *policy)
>
>  /************************** sysfs interface ************************/
>
> -static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
> +static ssize_t sampling_down_factor_store(struct gov_attr_set *attr_set,
>                                           const char *buf, size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -161,7 +161,7 @@ static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
>         return count;
>  }
>
> -static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
> +static ssize_t up_threshold_store(struct gov_attr_set *attr_set,
>                                   const char *buf, size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -177,7 +177,7 @@ static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
>         return count;
>  }
>
> -static ssize_t store_down_threshold(struct gov_attr_set *attr_set,
> +static ssize_t down_threshold_store(struct gov_attr_set *attr_set,
>                                     const char *buf, size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -195,7 +195,7 @@ static ssize_t store_down_threshold(struct gov_attr_set *attr_set,
>         return count;
>  }
>
> -static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
> +static ssize_t ignore_nice_load_store(struct gov_attr_set *attr_set,
>                                       const char *buf, size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -220,7 +220,7 @@ static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
>         return count;
>  }
>
> -static ssize_t store_freq_step(struct gov_attr_set *attr_set, const char *buf,
> +static ssize_t freq_step_store(struct gov_attr_set *attr_set, const char *buf,
>                                size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
> index 63f7c219062b..0d42cf8b88d8 100644
> --- a/drivers/cpufreq/cpufreq_governor.c
> +++ b/drivers/cpufreq/cpufreq_governor.c
> @@ -27,7 +27,7 @@ static DEFINE_MUTEX(gov_dbs_data_mutex);
>
>  /* Common sysfs tunables */
>  /*
> - * store_sampling_rate - update sampling rate effective immediately if needed.
> + * sampling_rate_store - update sampling rate effective immediately if needed.
>   *
>   * If new rate is smaller than the old, simply updating
>   * dbs.sampling_rate might not be appropriate. For example, if the
> @@ -41,7 +41,7 @@ static DEFINE_MUTEX(gov_dbs_data_mutex);
>   * This must be called with dbs_data->mutex held, otherwise traversing
>   * policy_dbs_list isn't safe.
>   */
> -ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,
> +ssize_t sampling_rate_store(struct gov_attr_set *attr_set, const char *buf,
>                             size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -80,7 +80,7 @@ ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,
>
>         return count;
>  }
> -EXPORT_SYMBOL_GPL(store_sampling_rate);
> +EXPORT_SYMBOL_GPL(sampling_rate_store);
>
>  /**
>   * gov_update_cpu_data - Update CPU load data.
> diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
> index bab8e6140377..65ecf32ba4f8 100644
> --- a/drivers/cpufreq/cpufreq_governor.h
> +++ b/drivers/cpufreq/cpufreq_governor.h
> @@ -51,7 +51,7 @@ static inline struct dbs_data *to_dbs_data(struct gov_attr_set *attr_set)
>  }
>
>  #define gov_show_one(_gov, file_name)                                  \
> -static ssize_t show_##file_name                                                \
> +static ssize_t file_name##_show                                                \
>  (struct gov_attr_set *attr_set, char *buf)                             \
>  {                                                                      \
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);              \
> @@ -60,7 +60,7 @@ static ssize_t show_##file_name                                               \
>  }
>
>  #define gov_show_one_common(file_name)                                 \
> -static ssize_t show_##file_name                                                \
> +static ssize_t file_name##_show                                                \
>  (struct gov_attr_set *attr_set, char *buf)                             \
>  {                                                                      \
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);              \
> @@ -69,11 +69,11 @@ static ssize_t show_##file_name                                             \
>
>  #define gov_attr_ro(_name)                                             \
>  static struct governor_attr _name =                                    \
> -__ATTR(_name, 0444, show_##_name, NULL)
> +__ATTR(_name, 0444, _name##_show, NULL)
>
>  #define gov_attr_rw(_name)                                             \
>  static struct governor_attr _name =                                    \
> -__ATTR(_name, 0644, show_##_name, store_##_name)
> +__ATTR(_name, 0644, _name##_show, _name##_store)
>
>  /* Common to all CPUs of a policy */
>  struct policy_dbs_info {
> @@ -176,7 +176,7 @@ void od_register_powersave_bias_handler(unsigned int (*f)
>                 (struct cpufreq_policy *, unsigned int, unsigned int),
>                 unsigned int powersave_bias);
>  void od_unregister_powersave_bias_handler(void);
> -ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,
> +ssize_t sampling_rate_store(struct gov_attr_set *attr_set, const char *buf,
>                             size_t count);
>  void gov_update_cpu_data(struct dbs_data *dbs_data);
>  #endif /* _CPUFREQ_GOVERNOR_H */
> diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
> index 6a41ea4729b8..e8fbf970ff07 100644
> --- a/drivers/cpufreq/cpufreq_ondemand.c
> +++ b/drivers/cpufreq/cpufreq_ondemand.c
> @@ -202,7 +202,7 @@ static unsigned int od_dbs_update(struct cpufreq_policy *policy)
>  /************************** sysfs interface ************************/
>  static struct dbs_governor od_dbs_gov;
>
> -static ssize_t store_io_is_busy(struct gov_attr_set *attr_set, const char *buf,
> +static ssize_t io_is_busy_store(struct gov_attr_set *attr_set, const char *buf,
>                                 size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -220,7 +220,7 @@ static ssize_t store_io_is_busy(struct gov_attr_set *attr_set, const char *buf,
>         return count;
>  }
>
> -static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
> +static ssize_t up_threshold_store(struct gov_attr_set *attr_set,
>                                   const char *buf, size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -237,7 +237,7 @@ static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
>         return count;
>  }
>
> -static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
> +static ssize_t sampling_down_factor_store(struct gov_attr_set *attr_set,
>                                           const char *buf, size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -265,7 +265,7 @@ static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
>         return count;
>  }
>
> -static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
> +static ssize_t ignore_nice_load_store(struct gov_attr_set *attr_set,
>                                       const char *buf, size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> @@ -290,7 +290,7 @@ static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
>         return count;
>  }
>
> -static ssize_t store_powersave_bias(struct gov_attr_set *attr_set,
> +static ssize_t powersave_bias_store(struct gov_attr_set *attr_set,
>                                     const char *buf, size_t count)
>  {
>         struct dbs_data *dbs_data = to_dbs_data(attr_set);
> --
> 2.20.1
>
>
>
Rafael J. Wysocki March 8, 2022, 1:33 p.m. UTC | #5
On Tue, Mar 8, 2022 at 2:04 AM zhanglianjie <zhanglianjie@uniontech.com> wrote:
>
> Hi,
>
> On 2022/3/8 02:19, Rafael J. Wysocki wrote:
> > On Sun, Mar 6, 2022 at 3:13 AM zhanglianjie <zhanglianjie@uniontech.com> wrote:
> >>
> >> Unify the show() and store() styles of attr,
> >> change show_xxx(), store_xxx() to xxx_show(), xxx_store().
> >
> > You need to say something about motivation too.
> Usually /sys directory under the file, the corresponding Attribute
> contains .show and .store, and their naming style is filename_show() and
> filename_store(). But all naming style in 'cpufreq' is show_filename()
> and store_filename(), resulting in __ATTR_RW() and __ATTR_RO() macros
> cannot be used to simplify code, So need to change naming style.

OK, so please put the above information into the patch changelog.

> >
> >> Signed-off-by: zhanglianjie <zhanglianjie@uniontech.com>
> >>
> >> diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
> >> index 08515f7e515f..b6bd0ff35323 100644
> >> --- a/drivers/cpufreq/cpufreq_conservative.c
> >> +++ b/drivers/cpufreq/cpufreq_conservative.c
> >> @@ -146,7 +146,7 @@ static unsigned int cs_dbs_update(struct cpufreq_policy *policy)
> >>
> >>   /************************** sysfs interface ************************/
> >>
> >> -static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
> >> +static ssize_t sampling_down_factor_store(struct gov_attr_set *attr_set,
> >>                                            const char *buf, size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -161,7 +161,7 @@ static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
> >>          return count;
> >>   }
> >>
> >> -static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
> >> +static ssize_t up_threshold_store(struct gov_attr_set *attr_set,
> >>                                    const char *buf, size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -177,7 +177,7 @@ static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
> >>          return count;
> >>   }
> >>
> >> -static ssize_t store_down_threshold(struct gov_attr_set *attr_set,
> >> +static ssize_t down_threshold_store(struct gov_attr_set *attr_set,
> >>                                      const char *buf, size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -195,7 +195,7 @@ static ssize_t store_down_threshold(struct gov_attr_set *attr_set,
> >>          return count;
> >>   }
> >>
> >> -static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
> >> +static ssize_t ignore_nice_load_store(struct gov_attr_set *attr_set,
> >>                                        const char *buf, size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -220,7 +220,7 @@ static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
> >>          return count;
> >>   }
> >>
> >> -static ssize_t store_freq_step(struct gov_attr_set *attr_set, const char *buf,
> >> +static ssize_t freq_step_store(struct gov_attr_set *attr_set, const char *buf,
> >>                                 size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
> >> index 63f7c219062b..0d42cf8b88d8 100644
> >> --- a/drivers/cpufreq/cpufreq_governor.c
> >> +++ b/drivers/cpufreq/cpufreq_governor.c
> >> @@ -27,7 +27,7 @@ static DEFINE_MUTEX(gov_dbs_data_mutex);
> >>
> >>   /* Common sysfs tunables */
> >>   /*
> >> - * store_sampling_rate - update sampling rate effective immediately if needed.
> >> + * sampling_rate_store - update sampling rate effective immediately if needed.
> >>    *
> >>    * If new rate is smaller than the old, simply updating
> >>    * dbs.sampling_rate might not be appropriate. For example, if the
> >> @@ -41,7 +41,7 @@ static DEFINE_MUTEX(gov_dbs_data_mutex);
> >>    * This must be called with dbs_data->mutex held, otherwise traversing
> >>    * policy_dbs_list isn't safe.
> >>    */
> >> -ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,
> >> +ssize_t sampling_rate_store(struct gov_attr_set *attr_set, const char *buf,
> >>                              size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -80,7 +80,7 @@ ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,
> >>
> >>          return count;
> >>   }
> >> -EXPORT_SYMBOL_GPL(store_sampling_rate);
> >> +EXPORT_SYMBOL_GPL(sampling_rate_store);
> >>
> >>   /**
> >>    * gov_update_cpu_data - Update CPU load data.
> >> diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
> >> index bab8e6140377..65ecf32ba4f8 100644
> >> --- a/drivers/cpufreq/cpufreq_governor.h
> >> +++ b/drivers/cpufreq/cpufreq_governor.h
> >> @@ -51,7 +51,7 @@ static inline struct dbs_data *to_dbs_data(struct gov_attr_set *attr_set)
> >>   }
> >>
> >>   #define gov_show_one(_gov, file_name)                                  \
> >> -static ssize_t show_##file_name                                                \
> >> +static ssize_t file_name##_show                                                \
> >>   (struct gov_attr_set *attr_set, char *buf)                             \
> >>   {                                                                      \
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);              \
> >> @@ -60,7 +60,7 @@ static ssize_t show_##file_name                                               \
> >>   }
> >>
> >>   #define gov_show_one_common(file_name)                                 \
> >> -static ssize_t show_##file_name                                                \
> >> +static ssize_t file_name##_show                                                \
> >>   (struct gov_attr_set *attr_set, char *buf)                             \
> >>   {                                                                      \
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);              \
> >> @@ -69,11 +69,11 @@ static ssize_t show_##file_name                                             \
> >>
> >>   #define gov_attr_ro(_name)                                             \
> >>   static struct governor_attr _name =                                    \
> >> -__ATTR(_name, 0444, show_##_name, NULL)
> >> +__ATTR(_name, 0444, _name##_show, NULL)
> >>
> >>   #define gov_attr_rw(_name)                                             \
> >>   static struct governor_attr _name =                                    \
> >> -__ATTR(_name, 0644, show_##_name, store_##_name)
> >> +__ATTR(_name, 0644, _name##_show, _name##_store)
> >>
> >>   /* Common to all CPUs of a policy */
> >>   struct policy_dbs_info {
> >> @@ -176,7 +176,7 @@ void od_register_powersave_bias_handler(unsigned int (*f)
> >>                  (struct cpufreq_policy *, unsigned int, unsigned int),
> >>                  unsigned int powersave_bias);
> >>   void od_unregister_powersave_bias_handler(void);
> >> -ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,
> >> +ssize_t sampling_rate_store(struct gov_attr_set *attr_set, const char *buf,
> >>                              size_t count);
> >>   void gov_update_cpu_data(struct dbs_data *dbs_data);
> >>   #endif /* _CPUFREQ_GOVERNOR_H */
> >> diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
> >> index 6a41ea4729b8..e8fbf970ff07 100644
> >> --- a/drivers/cpufreq/cpufreq_ondemand.c
> >> +++ b/drivers/cpufreq/cpufreq_ondemand.c
> >> @@ -202,7 +202,7 @@ static unsigned int od_dbs_update(struct cpufreq_policy *policy)
> >>   /************************** sysfs interface ************************/
> >>   static struct dbs_governor od_dbs_gov;
> >>
> >> -static ssize_t store_io_is_busy(struct gov_attr_set *attr_set, const char *buf,
> >> +static ssize_t io_is_busy_store(struct gov_attr_set *attr_set, const char *buf,
> >>                                  size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -220,7 +220,7 @@ static ssize_t store_io_is_busy(struct gov_attr_set *attr_set, const char *buf,
> >>          return count;
> >>   }
> >>
> >> -static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
> >> +static ssize_t up_threshold_store(struct gov_attr_set *attr_set,
> >>                                    const char *buf, size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -237,7 +237,7 @@ static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
> >>          return count;
> >>   }
> >>
> >> -static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
> >> +static ssize_t sampling_down_factor_store(struct gov_attr_set *attr_set,
> >>                                            const char *buf, size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -265,7 +265,7 @@ static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
> >>          return count;
> >>   }
> >>
> >> -static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
> >> +static ssize_t ignore_nice_load_store(struct gov_attr_set *attr_set,
> >>                                        const char *buf, size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> @@ -290,7 +290,7 @@ static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
> >>          return count;
> >>   }
> >>
> >> -static ssize_t store_powersave_bias(struct gov_attr_set *attr_set,
> >> +static ssize_t powersave_bias_store(struct gov_attr_set *attr_set,
> >>                                      const char *buf, size_t count)
> >>   {
> >>          struct dbs_data *dbs_data = to_dbs_data(attr_set);
> >> --
> >> 2.20.1
> >>
> >>
> >>
> >
>
> --
> Kind regards,
> Lianjie
>
>
diff mbox series

Patch

diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 08515f7e515f..b6bd0ff35323 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -146,7 +146,7 @@  static unsigned int cs_dbs_update(struct cpufreq_policy *policy)

 /************************** sysfs interface ************************/

-static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
+static ssize_t sampling_down_factor_store(struct gov_attr_set *attr_set,
 					  const char *buf, size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -161,7 +161,7 @@  static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
 	return count;
 }

-static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
+static ssize_t up_threshold_store(struct gov_attr_set *attr_set,
 				  const char *buf, size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -177,7 +177,7 @@  static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
 	return count;
 }

-static ssize_t store_down_threshold(struct gov_attr_set *attr_set,
+static ssize_t down_threshold_store(struct gov_attr_set *attr_set,
 				    const char *buf, size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -195,7 +195,7 @@  static ssize_t store_down_threshold(struct gov_attr_set *attr_set,
 	return count;
 }

-static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
+static ssize_t ignore_nice_load_store(struct gov_attr_set *attr_set,
 				      const char *buf, size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -220,7 +220,7 @@  static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
 	return count;
 }

-static ssize_t store_freq_step(struct gov_attr_set *attr_set, const char *buf,
+static ssize_t freq_step_store(struct gov_attr_set *attr_set, const char *buf,
 			       size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 63f7c219062b..0d42cf8b88d8 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -27,7 +27,7 @@  static DEFINE_MUTEX(gov_dbs_data_mutex);

 /* Common sysfs tunables */
 /*
- * store_sampling_rate - update sampling rate effective immediately if needed.
+ * sampling_rate_store - update sampling rate effective immediately if needed.
  *
  * If new rate is smaller than the old, simply updating
  * dbs.sampling_rate might not be appropriate. For example, if the
@@ -41,7 +41,7 @@  static DEFINE_MUTEX(gov_dbs_data_mutex);
  * This must be called with dbs_data->mutex held, otherwise traversing
  * policy_dbs_list isn't safe.
  */
-ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,
+ssize_t sampling_rate_store(struct gov_attr_set *attr_set, const char *buf,
 			    size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -80,7 +80,7 @@  ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,

 	return count;
 }
-EXPORT_SYMBOL_GPL(store_sampling_rate);
+EXPORT_SYMBOL_GPL(sampling_rate_store);

 /**
  * gov_update_cpu_data - Update CPU load data.
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index bab8e6140377..65ecf32ba4f8 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -51,7 +51,7 @@  static inline struct dbs_data *to_dbs_data(struct gov_attr_set *attr_set)
 }

 #define gov_show_one(_gov, file_name)					\
-static ssize_t show_##file_name						\
+static ssize_t file_name##_show						\
 (struct gov_attr_set *attr_set, char *buf)				\
 {									\
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);		\
@@ -60,7 +60,7 @@  static ssize_t show_##file_name						\
 }

 #define gov_show_one_common(file_name)					\
-static ssize_t show_##file_name						\
+static ssize_t file_name##_show						\
 (struct gov_attr_set *attr_set, char *buf)				\
 {									\
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);		\
@@ -69,11 +69,11 @@  static ssize_t show_##file_name						\

 #define gov_attr_ro(_name)						\
 static struct governor_attr _name =					\
-__ATTR(_name, 0444, show_##_name, NULL)
+__ATTR(_name, 0444, _name##_show, NULL)

 #define gov_attr_rw(_name)						\
 static struct governor_attr _name =					\
-__ATTR(_name, 0644, show_##_name, store_##_name)
+__ATTR(_name, 0644, _name##_show, _name##_store)

 /* Common to all CPUs of a policy */
 struct policy_dbs_info {
@@ -176,7 +176,7 @@  void od_register_powersave_bias_handler(unsigned int (*f)
 		(struct cpufreq_policy *, unsigned int, unsigned int),
 		unsigned int powersave_bias);
 void od_unregister_powersave_bias_handler(void);
-ssize_t store_sampling_rate(struct gov_attr_set *attr_set, const char *buf,
+ssize_t sampling_rate_store(struct gov_attr_set *attr_set, const char *buf,
 			    size_t count);
 void gov_update_cpu_data(struct dbs_data *dbs_data);
 #endif /* _CPUFREQ_GOVERNOR_H */
diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 6a41ea4729b8..e8fbf970ff07 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -202,7 +202,7 @@  static unsigned int od_dbs_update(struct cpufreq_policy *policy)
 /************************** sysfs interface ************************/
 static struct dbs_governor od_dbs_gov;

-static ssize_t store_io_is_busy(struct gov_attr_set *attr_set, const char *buf,
+static ssize_t io_is_busy_store(struct gov_attr_set *attr_set, const char *buf,
 				size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -220,7 +220,7 @@  static ssize_t store_io_is_busy(struct gov_attr_set *attr_set, const char *buf,
 	return count;
 }

-static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
+static ssize_t up_threshold_store(struct gov_attr_set *attr_set,
 				  const char *buf, size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -237,7 +237,7 @@  static ssize_t store_up_threshold(struct gov_attr_set *attr_set,
 	return count;
 }

-static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
+static ssize_t sampling_down_factor_store(struct gov_attr_set *attr_set,
 					  const char *buf, size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -265,7 +265,7 @@  static ssize_t store_sampling_down_factor(struct gov_attr_set *attr_set,
 	return count;
 }

-static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
+static ssize_t ignore_nice_load_store(struct gov_attr_set *attr_set,
 				      const char *buf, size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);
@@ -290,7 +290,7 @@  static ssize_t store_ignore_nice_load(struct gov_attr_set *attr_set,
 	return count;
 }

-static ssize_t store_powersave_bias(struct gov_attr_set *attr_set,
+static ssize_t powersave_bias_store(struct gov_attr_set *attr_set,
 				    const char *buf, size_t count)
 {
 	struct dbs_data *dbs_data = to_dbs_data(attr_set);