Re: [PATCH 4/6] cpufreq: Add a get_current_driver helper

2013-01-28 Thread Viresh Kumar
On 28 January 2013 15:19, Borislav Petkov  wrote:
> Which one would you suggest: CPUFREQ DRIVER INTERFACE?

Yes.

> Btw, this function type splitting looks kinda silly to me. In that same
> section there are two which clearly don't belong there:
>
> struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
> void   cpufreq_cpu_put(struct cpufreq_policy *data);
>
> since they don't have anything to do with freq_table. And since they
> return cpufreq_policy, they should be maybe called:
>
> cpufreq_get_cpu_policy
> cpufreq_put_cpu_policy
>
> or something more expressive, pertaining to what they actually do. But
> they actually get/put the module (inc/dec the module's refcount) *and*
> return the cpufreq_policy... whatever, I don't care that much so see
> below.

Agree.

> --
> From 830eb9ebc715d329229772d11332c50dfd1d9330 Mon Sep 17 00:00:00 2001
> From: Borislav Petkov 
> Date: Mon, 28 Jan 2013 10:38:33 +0100
> Subject: [PATCH] cpufreq: Sort function prototypes properly
>
> Move function prototypes to a place where they logically fit better.
>
> Signed-off-by: Borislav Petkov 
> ---
>  include/linux/cpufreq.h | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
> index a018da2d2a7c..f33ace57adb6 100644
> --- a/include/linux/cpufreq.h
> +++ b/include/linux/cpufreq.h
> @@ -308,6 +308,9 @@ __ATTR(_name, 0444, show_##_name, NULL)
>  static struct global_attr _name =  \
>  __ATTR(_name, 0644, show_##_name, store_##_name)
>
> +struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
> +void   cpufreq_cpu_put(struct cpufreq_policy *data);
> +const char *cpufreq_get_current_driver(void);
>
>  /*
>   *CPUFREQ 2.6. INTERFACE *
> @@ -397,8 +400,6 @@ int cpufreq_frequency_table_target(struct cpufreq_policy 
> *policy,
>
>  /* the following 3 funtions are for cpufreq core use only */
>  struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int 
> cpu);
> -struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
> -void   cpufreq_cpu_put(struct cpufreq_policy *data);
>
>  /* the following are really really optional */
>  extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
> @@ -407,5 +408,4 @@ void cpufreq_frequency_table_get_attr(struct 
> cpufreq_frequency_table *table,
>   unsigned int cpu);
>
>  void cpufreq_frequency_table_put_attr(unsigned int cpu);
> -extern const char *cpufreq_get_current_driver(void);
>  #endif /* _LINUX_CPUFREQ_H */

Acked-by: Viresh Kumar 
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Re: [PATCH 4/6] cpufreq: Add a get_current_driver helper

2013-01-28 Thread Borislav Petkov
On Mon, Jan 28, 2013 at 10:07:10AM +0530, Viresh Kumar wrote:
> Two minor things here:
> - You placed the routine at bad place. This place is meant for
> freq_table helpers.

Which one would you suggest: CPUFREQ DRIVER INTERFACE?

Btw, this function type splitting looks kinda silly to me. In that same
section there are two which clearly don't belong there:

struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
void   cpufreq_cpu_put(struct cpufreq_policy *data);

since they don't have anything to do with freq_table. And since they
return cpufreq_policy, they should be maybe called:

cpufreq_get_cpu_policy
cpufreq_put_cpu_policy

or something more expressive, pertaining to what they actually do. But
they actually get/put the module (inc/dec the module's refcount) *and*
return the cpufreq_policy... whatever, I don't care that much so see
below.

> - And you really don't need extern for function prototypes.

Yeah, Rafael corrected that when committing:

http://git.kernel.org/?p=linux/kernel/git/rafael/linux-pm.git;a=commitdiff;h=fcbf43dcacb0daecffca0f5c862c9d8815108e58

--
>From 830eb9ebc715d329229772d11332c50dfd1d9330 Mon Sep 17 00:00:00 2001
From: Borislav Petkov 
Date: Mon, 28 Jan 2013 10:38:33 +0100
Subject: [PATCH] cpufreq: Sort function prototypes properly

Move function prototypes to a place where they logically fit better.

Signed-off-by: Borislav Petkov 
---
 include/linux/cpufreq.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index a018da2d2a7c..f33ace57adb6 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -308,6 +308,9 @@ __ATTR(_name, 0444, show_##_name, NULL)
 static struct global_attr _name =  \
 __ATTR(_name, 0644, show_##_name, store_##_name)
 
+struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
+void   cpufreq_cpu_put(struct cpufreq_policy *data);
+const char *cpufreq_get_current_driver(void);
 
 /*
  *CPUFREQ 2.6. INTERFACE *
@@ -397,8 +400,6 @@ int cpufreq_frequency_table_target(struct cpufreq_policy 
*policy,
 
 /* the following 3 funtions are for cpufreq core use only */
 struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu);
-struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
-void   cpufreq_cpu_put(struct cpufreq_policy *data);
 
 /* the following are really really optional */
 extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
@@ -407,5 +408,4 @@ void cpufreq_frequency_table_get_attr(struct 
cpufreq_frequency_table *table,
  unsigned int cpu);
 
 void cpufreq_frequency_table_put_attr(unsigned int cpu);
-extern const char *cpufreq_get_current_driver(void);
 #endif /* _LINUX_CPUFREQ_H */
-- 
1.8.1.rc3


-- 
Regards/Gruss,
Boris.

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Re: [PATCH 4/6] cpufreq: Add a get_current_driver helper

2013-01-28 Thread Borislav Petkov
On Mon, Jan 28, 2013 at 10:07:10AM +0530, Viresh Kumar wrote:
 Two minor things here:
 - You placed the routine at bad place. This place is meant for
 freq_table helpers.

Which one would you suggest: CPUFREQ DRIVER INTERFACE?

Btw, this function type splitting looks kinda silly to me. In that same
section there are two which clearly don't belong there:

struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
void   cpufreq_cpu_put(struct cpufreq_policy *data);

since they don't have anything to do with freq_table. And since they
return cpufreq_policy, they should be maybe called:

cpufreq_get_cpu_policy
cpufreq_put_cpu_policy

or something more expressive, pertaining to what they actually do. But
they actually get/put the module (inc/dec the module's refcount) *and*
return the cpufreq_policy... whatever, I don't care that much so see
below.

 - And you really don't need extern for function prototypes.

Yeah, Rafael corrected that when committing:

http://git.kernel.org/?p=linux/kernel/git/rafael/linux-pm.git;a=commitdiff;h=fcbf43dcacb0daecffca0f5c862c9d8815108e58

--
From 830eb9ebc715d329229772d11332c50dfd1d9330 Mon Sep 17 00:00:00 2001
From: Borislav Petkov b...@suse.de
Date: Mon, 28 Jan 2013 10:38:33 +0100
Subject: [PATCH] cpufreq: Sort function prototypes properly

Move function prototypes to a place where they logically fit better.

Signed-off-by: Borislav Petkov b...@suse.de
---
 include/linux/cpufreq.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index a018da2d2a7c..f33ace57adb6 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -308,6 +308,9 @@ __ATTR(_name, 0444, show_##_name, NULL)
 static struct global_attr _name =  \
 __ATTR(_name, 0644, show_##_name, store_##_name)
 
+struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
+void   cpufreq_cpu_put(struct cpufreq_policy *data);
+const char *cpufreq_get_current_driver(void);
 
 /*
  *CPUFREQ 2.6. INTERFACE *
@@ -397,8 +400,6 @@ int cpufreq_frequency_table_target(struct cpufreq_policy 
*policy,
 
 /* the following 3 funtions are for cpufreq core use only */
 struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu);
-struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
-void   cpufreq_cpu_put(struct cpufreq_policy *data);
 
 /* the following are really really optional */
 extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
@@ -407,5 +408,4 @@ void cpufreq_frequency_table_get_attr(struct 
cpufreq_frequency_table *table,
  unsigned int cpu);
 
 void cpufreq_frequency_table_put_attr(unsigned int cpu);
-extern const char *cpufreq_get_current_driver(void);
 #endif /* _LINUX_CPUFREQ_H */
-- 
1.8.1.rc3


-- 
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
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Re: [PATCH 4/6] cpufreq: Add a get_current_driver helper

2013-01-28 Thread Viresh Kumar
On 28 January 2013 15:19, Borislav Petkov b...@alien8.de wrote:
 Which one would you suggest: CPUFREQ DRIVER INTERFACE?

Yes.

 Btw, this function type splitting looks kinda silly to me. In that same
 section there are two which clearly don't belong there:

 struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
 void   cpufreq_cpu_put(struct cpufreq_policy *data);

 since they don't have anything to do with freq_table. And since they
 return cpufreq_policy, they should be maybe called:

 cpufreq_get_cpu_policy
 cpufreq_put_cpu_policy

 or something more expressive, pertaining to what they actually do. But
 they actually get/put the module (inc/dec the module's refcount) *and*
 return the cpufreq_policy... whatever, I don't care that much so see
 below.

Agree.

 --
 From 830eb9ebc715d329229772d11332c50dfd1d9330 Mon Sep 17 00:00:00 2001
 From: Borislav Petkov b...@suse.de
 Date: Mon, 28 Jan 2013 10:38:33 +0100
 Subject: [PATCH] cpufreq: Sort function prototypes properly

 Move function prototypes to a place where they logically fit better.

 Signed-off-by: Borislav Petkov b...@suse.de
 ---
  include/linux/cpufreq.h | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

 diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
 index a018da2d2a7c..f33ace57adb6 100644
 --- a/include/linux/cpufreq.h
 +++ b/include/linux/cpufreq.h
 @@ -308,6 +308,9 @@ __ATTR(_name, 0444, show_##_name, NULL)
  static struct global_attr _name =  \
  __ATTR(_name, 0644, show_##_name, store_##_name)

 +struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
 +void   cpufreq_cpu_put(struct cpufreq_policy *data);
 +const char *cpufreq_get_current_driver(void);

  /*
   *CPUFREQ 2.6. INTERFACE *
 @@ -397,8 +400,6 @@ int cpufreq_frequency_table_target(struct cpufreq_policy 
 *policy,

  /* the following 3 funtions are for cpufreq core use only */
  struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int 
 cpu);
 -struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
 -void   cpufreq_cpu_put(struct cpufreq_policy *data);

  /* the following are really really optional */
  extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
 @@ -407,5 +408,4 @@ void cpufreq_frequency_table_get_attr(struct 
 cpufreq_frequency_table *table,
   unsigned int cpu);

  void cpufreq_frequency_table_put_attr(unsigned int cpu);
 -extern const char *cpufreq_get_current_driver(void);
  #endif /* _LINUX_CPUFREQ_H */

Acked-by: Viresh Kumar viresh.ku...@linaro.org
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Re: [PATCH 4/6] cpufreq: Add a get_current_driver helper

2013-01-27 Thread Viresh Kumar
On Sun, Jan 20, 2013 at 3:54 PM, Borislav Petkov  wrote:
> From: Borislav Petkov 
>
> Add a helper function to return cpufreq_driver->name.
>
> Signed-off-by: Borislav Petkov 
> ---
>  drivers/cpufreq/cpufreq.c | 14 ++
>  include/linux/cpufreq.h   |  1 +
>  2 files changed, 15 insertions(+)
>
> diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
> index 1f93dbd72355..6ed3c1377caf 100644
> --- a/drivers/cpufreq/cpufreq.c
> +++ b/drivers/cpufreq/cpufreq.c
> @@ -1386,6 +1386,20 @@ static struct syscore_ops cpufreq_syscore_ops = {
> .resume = cpufreq_bp_resume,
>  };
>
> +/**
> + * cpufreq_get_current_driver - return current driver's name
> + *
> + * Return the name string of the currently loaded cpufreq driver
> + * or NULL, if none.
> + */
> +const char *cpufreq_get_current_driver(void)
> +{
> +   if (cpufreq_driver)
> +   return cpufreq_driver->name;
> +
> +   return NULL;
> +}
> +EXPORT_SYMBOL_GPL(cpufreq_get_current_driver);
>
>  /*
>   * NOTIFIER LISTS INTERFACE  *
> diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
> index a55b88eaf96a..a018da2d2a7c 100644
> --- a/include/linux/cpufreq.h
> +++ b/include/linux/cpufreq.h
> @@ -407,4 +407,5 @@ void cpufreq_frequency_table_get_attr(struct 
> cpufreq_frequency_table *table,
>   unsigned int cpu);
>
>  void cpufreq_frequency_table_put_attr(unsigned int cpu);
> +extern const char *cpufreq_get_current_driver(void);

Two minor things here:
- You placed the routine at bad place. This place is meant for
freq_table helpers.
- And you really don't need extern for function prototypes.

And after fixing these, feel free to add

Acked-by: Viresh Kumar 
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Re: [PATCH 4/6] cpufreq: Add a get_current_driver helper

2013-01-27 Thread Viresh Kumar
On Sun, Jan 20, 2013 at 3:54 PM, Borislav Petkov b...@alien8.de wrote:
 From: Borislav Petkov b...@suse.de

 Add a helper function to return cpufreq_driver-name.

 Signed-off-by: Borislav Petkov b...@suse.de
 ---
  drivers/cpufreq/cpufreq.c | 14 ++
  include/linux/cpufreq.h   |  1 +
  2 files changed, 15 insertions(+)

 diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
 index 1f93dbd72355..6ed3c1377caf 100644
 --- a/drivers/cpufreq/cpufreq.c
 +++ b/drivers/cpufreq/cpufreq.c
 @@ -1386,6 +1386,20 @@ static struct syscore_ops cpufreq_syscore_ops = {
 .resume = cpufreq_bp_resume,
  };

 +/**
 + * cpufreq_get_current_driver - return current driver's name
 + *
 + * Return the name string of the currently loaded cpufreq driver
 + * or NULL, if none.
 + */
 +const char *cpufreq_get_current_driver(void)
 +{
 +   if (cpufreq_driver)
 +   return cpufreq_driver-name;
 +
 +   return NULL;
 +}
 +EXPORT_SYMBOL_GPL(cpufreq_get_current_driver);

  /*
   * NOTIFIER LISTS INTERFACE  *
 diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
 index a55b88eaf96a..a018da2d2a7c 100644
 --- a/include/linux/cpufreq.h
 +++ b/include/linux/cpufreq.h
 @@ -407,4 +407,5 @@ void cpufreq_frequency_table_get_attr(struct 
 cpufreq_frequency_table *table,
   unsigned int cpu);

  void cpufreq_frequency_table_put_attr(unsigned int cpu);
 +extern const char *cpufreq_get_current_driver(void);

Two minor things here:
- You placed the routine at bad place. This place is meant for
freq_table helpers.
- And you really don't need extern for function prototypes.

And after fixing these, feel free to add

Acked-by: Viresh Kumar viresh.ku...@linaro.org
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[PATCH 4/6] cpufreq: Add a get_current_driver helper

2013-01-20 Thread Borislav Petkov
From: Borislav Petkov 

Add a helper function to return cpufreq_driver->name.

Signed-off-by: Borislav Petkov 
---
 drivers/cpufreq/cpufreq.c | 14 ++
 include/linux/cpufreq.h   |  1 +
 2 files changed, 15 insertions(+)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 1f93dbd72355..6ed3c1377caf 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1386,6 +1386,20 @@ static struct syscore_ops cpufreq_syscore_ops = {
.resume = cpufreq_bp_resume,
 };
 
+/**
+ * cpufreq_get_current_driver - return current driver's name
+ *
+ * Return the name string of the currently loaded cpufreq driver
+ * or NULL, if none.
+ */
+const char *cpufreq_get_current_driver(void)
+{
+   if (cpufreq_driver)
+   return cpufreq_driver->name;
+
+   return NULL;
+}
+EXPORT_SYMBOL_GPL(cpufreq_get_current_driver);
 
 /*
  * NOTIFIER LISTS INTERFACE  *
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index a55b88eaf96a..a018da2d2a7c 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -407,4 +407,5 @@ void cpufreq_frequency_table_get_attr(struct 
cpufreq_frequency_table *table,
  unsigned int cpu);
 
 void cpufreq_frequency_table_put_attr(unsigned int cpu);
+extern const char *cpufreq_get_current_driver(void);
 #endif /* _LINUX_CPUFREQ_H */
-- 
1.8.1.rc3

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[PATCH 4/6] cpufreq: Add a get_current_driver helper

2013-01-20 Thread Borislav Petkov
From: Borislav Petkov b...@suse.de

Add a helper function to return cpufreq_driver-name.

Signed-off-by: Borislav Petkov b...@suse.de
---
 drivers/cpufreq/cpufreq.c | 14 ++
 include/linux/cpufreq.h   |  1 +
 2 files changed, 15 insertions(+)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 1f93dbd72355..6ed3c1377caf 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1386,6 +1386,20 @@ static struct syscore_ops cpufreq_syscore_ops = {
.resume = cpufreq_bp_resume,
 };
 
+/**
+ * cpufreq_get_current_driver - return current driver's name
+ *
+ * Return the name string of the currently loaded cpufreq driver
+ * or NULL, if none.
+ */
+const char *cpufreq_get_current_driver(void)
+{
+   if (cpufreq_driver)
+   return cpufreq_driver-name;
+
+   return NULL;
+}
+EXPORT_SYMBOL_GPL(cpufreq_get_current_driver);
 
 /*
  * NOTIFIER LISTS INTERFACE  *
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index a55b88eaf96a..a018da2d2a7c 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -407,4 +407,5 @@ void cpufreq_frequency_table_get_attr(struct 
cpufreq_frequency_table *table,
  unsigned int cpu);
 
 void cpufreq_frequency_table_put_attr(unsigned int cpu);
+extern const char *cpufreq_get_current_driver(void);
 #endif /* _LINUX_CPUFREQ_H */
-- 
1.8.1.rc3

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