diff mbox

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

Message ID 1393552716-9754-1-git-send-email-skannan@codeaurora.org (mailing list archive)
State Accepted, archived
Headers show

Commit Message

Saravana Kannan Feb. 28, 2014, 1:58 a.m. UTC
__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(-)

Comments

Viresh Kumar Feb. 28, 2014, 3:48 a.m. UTC | #1
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 :)
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Rafael J. Wysocki Feb. 28, 2014, 11:26 p.m. UTC | #2
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 :)
diff mbox

Patch

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;