[PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[Saravana Kannan]

__cpufreq_stats_create_table always gets pass the valid and real policy
struct. So, there's no need to call cpufreq_cpu_get() to get the policy
again.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
---
 drivers/cpufreq/cpufreq_stats.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 5793e14..e4bd27f 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -185,7 +185,6 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 {
 	unsigned int i, j, count = 0, ret = 0;
 	struct cpufreq_stats *stat;
-	struct cpufreq_policy *current_policy;
 	unsigned int alloc_size;
 	unsigned int cpu = policy->cpu;
 	if (per_cpu(cpufreq_stats_table, cpu))
@@ -194,13 +193,7 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 	if ((stat) == NULL)
 		return -ENOMEM;
 
-	current_policy = cpufreq_cpu_get(cpu);
-	if (current_policy == NULL) {
-		ret = -EINVAL;
-		goto error_get_fail;
-	}
-
-	ret = sysfs_create_group(&current_policy->kobj, &stats_attr_group);
+	ret = sysfs_create_group(&policy->kobj, &stats_attr_group);
 	if (ret)
 		goto error_out;
 
@@ -243,11 +236,8 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 	stat->last_time = get_jiffies_64();
 	stat->last_index = freq_table_get_index(stat, policy->cur);
 	spin_unlock(&cpufreq_stats_lock);
-	cpufreq_cpu_put(current_policy);
 	return 0;
 error_out:
-	cpufreq_cpu_put(current_policy);
-error_get_fail:
 	kfree(stat);
 	per_cpu(cpufreq_stats_table, cpu) = NULL;
 	return ret;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

[PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[Saravana Kannan]

__cpufreq_stats_create_table always gets pass the valid and real policy
struct. So, there's no need to call cpufreq_cpu_get() to get the policy
again.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
---
 drivers/cpufreq/cpufreq_stats.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 5793e14..e4bd27f 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -185,7 +185,6 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 {
 	unsigned int i, j, count = 0, ret = 0;
 	struct cpufreq_stats *stat;
-	struct cpufreq_policy *current_policy;
 	unsigned int alloc_size;
 	unsigned int cpu = policy->cpu;
 	if (per_cpu(cpufreq_stats_table, cpu))
@@ -194,13 +193,7 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 	if ((stat) == NULL)
 		return -ENOMEM;
 
-	current_policy = cpufreq_cpu_get(cpu);
-	if (current_policy == NULL) {
-		ret = -EINVAL;
-		goto error_get_fail;
-	}
-
-	ret = sysfs_create_group(&current_policy->kobj, &stats_attr_group);
+	ret = sysfs_create_group(&policy->kobj, &stats_attr_group);
 	if (ret)
 		goto error_out;
 
@@ -243,11 +236,8 @@ static int __cpufreq_stats_create_table(struct cpufreq_policy *policy,
 	stat->last_time = get_jiffies_64();
 	stat->last_index = freq_table_get_index(stat, policy->cur);
 	spin_unlock(&cpufreq_stats_lock);
-	cpufreq_cpu_put(current_policy);
 	return 0;
 error_out:
-	cpufreq_cpu_put(current_policy);
-error_get_fail:
 	kfree(stat);
 	per_cpu(cpufreq_stats_table, cpu) = NULL;
 	return ret;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

Re: [PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[Viresh Kumar]

On 28 February 2014 07:28, Saravana Kannan <skannan@codeaurora.org> wrote:
> __cpufreq_stats_create_table always gets pass the valid and real policy
> struct. So, there's no need to call cpufreq_cpu_get() to get the policy
> again.
>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
> ---
>  drivers/cpufreq/cpufreq_stats.c | 12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)

All patches look fine now. Rafael you can queue them up as per your
convenience.

@Saravana: Though I am quite sure you still need my patches to get
your initial issue fixed. So, can you please get them tested as early
as possible, so that we can get them in for 3.14?

@Srivatsa: Your reviews will also help :)

[PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[Viresh Kumar]

On 28 February 2014 07:28, Saravana Kannan <skannan@codeaurora.org> wrote:
> __cpufreq_stats_create_table always gets pass the valid and real policy
> struct. So, there's no need to call cpufreq_cpu_get() to get the policy
> again.
>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
> ---
>  drivers/cpufreq/cpufreq_stats.c | 12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)

All patches look fine now. Rafael you can queue them up as per your
convenience.

@Saravana: Though I am quite sure you still need my patches to get
your initial issue fixed. So, can you please get them tested as early
as possible, so that we can get them in for 3.14?

@Srivatsa: Your reviews will also help :)

Re: [PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[Viresh Kumar]

On 28 February 2014 07:28, Saravana Kannan <skannan@codeaurora.org> wrote:
> __cpufreq_stats_create_table always gets pass the valid and real policy
> struct. So, there's no need to call cpufreq_cpu_get() to get the policy
> again.
>
> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
> ---
>  drivers/cpufreq/cpufreq_stats.c | 12 +-----------
>  1 file changed, 1 insertion(+), 11 deletions(-)

All patches look fine now. Rafael you can queue them up as per your
convenience.

@Saravana: Though I am quite sure you still need my patches to get
your initial issue fixed. So, can you please get them tested as early
as possible, so that we can get them in for 3.14?

@Srivatsa: Your reviews will also help :)

Re: [PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[Rafael J. Wysocki]

On Friday, February 28, 2014 09:18:02 AM Viresh Kumar wrote:
> On 28 February 2014 07:28, Saravana Kannan <skannan@codeaurora.org> wrote:
> > __cpufreq_stats_create_table always gets pass the valid and real policy
> > struct. So, there's no need to call cpufreq_cpu_get() to get the policy
> > again.
> >
> > Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> > Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
> > ---
> >  drivers/cpufreq/cpufreq_stats.c | 12 +-----------
> >  1 file changed, 1 insertion(+), 11 deletions(-)
> 
> All patches look fine now. Rafael you can queue them up as per your
> convenience.
> 
> @Saravana: Though I am quite sure you still need my patches to get
> your initial issue fixed. So, can you please get them tested as early
> as possible, so that we can get them in for 3.14?

That's a bit late ...

> @Srivatsa: Your reviews will also help :)

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.

[PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[Rafael J. Wysocki]

On Friday, February 28, 2014 09:18:02 AM Viresh Kumar wrote:
> On 28 February 2014 07:28, Saravana Kannan <skannan@codeaurora.org> wrote:
> > __cpufreq_stats_create_table always gets pass the valid and real policy
> > struct. So, there's no need to call cpufreq_cpu_get() to get the policy
> > again.
> >
> > Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> > Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
> > ---
> >  drivers/cpufreq/cpufreq_stats.c | 12 +-----------
> >  1 file changed, 1 insertion(+), 11 deletions(-)
> 
> All patches look fine now. Rafael you can queue them up as per your
> convenience.
> 
> @Saravana: Though I am quite sure you still need my patches to get
> your initial issue fixed. So, can you please get them tested as early
> as possible, so that we can get them in for 3.14?

That's a bit late ...

> @Srivatsa: Your reviews will also help :)

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.

Re: [PATCH v3 1/3] cpufreq: stats: Remove redundant cpufreq_cpu_get() call

[Rafael J. Wysocki]

On Friday, February 28, 2014 09:18:02 AM Viresh Kumar wrote:
> On 28 February 2014 07:28, Saravana Kannan <skannan@codeaurora.org> wrote:
> > __cpufreq_stats_create_table always gets pass the valid and real policy
> > struct. So, there's no need to call cpufreq_cpu_get() to get the policy
> > again.
> >
> > Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> > Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
> > ---
> >  drivers/cpufreq/cpufreq_stats.c | 12 +-----------
> >  1 file changed, 1 insertion(+), 11 deletions(-)
> 
> All patches look fine now. Rafael you can queue them up as per your
> convenience.
> 
> @Saravana: Though I am quite sure you still need my patches to get
> your initial issue fixed. So, can you please get them tested as early
> as possible, so that we can get them in for 3.14?

That's a bit late ...

> @Srivatsa: Your reviews will also help :)

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.