thermal/drivers/cpu_cooling: Remove pointless field

The structure cpufreq_cooling_device provides a backpointer to the thermal
device but this one is used for a trace and to unregister. For the trace,
we don't really need this field and the unregister function as the same
pointer passed as parameter. Remove it.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>

diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index b9d152a..9b014d0 100644 (file)
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -87,7 +87,6 @@ struct cpufreq_cooling_device {
        unsigned int clipped_freq;
        unsigned int max_level;
        struct freq_table *freq_table;  /* In descending order */
-       struct thermal_cooling_device *cdev;
        struct cpufreq_policy *policy;
        struct list_head node;
        struct time_in_idle *idle_time;
@@ -195,8 +194,7 @@ static int update_freq_table(struct cpufreq_cooling_device *cpufreq_cdev,
 
        dev = get_cpu_device(cpu);
        if (unlikely(!dev)) {
-               dev_warn(&cpufreq_cdev->cdev->device,
-                        "No cpu device for cpu %d\n", cpu);
+               pr_warn("No cpu device for cpu %d\n", cpu);
                return -ENODEV;
        }
 
@@ -679,7 +677,6 @@ __cpufreq_cooling_register(struct device_node *np,
                goto remove_ida;
 
        cpufreq_cdev->clipped_freq = cpufreq_cdev->freq_table[0].frequency;
-       cpufreq_cdev->cdev = cdev;
 
        mutex_lock(&cooling_list_lock);
        /* Register the notifier for first cpufreq cooling device */
@@ -797,7 +794,7 @@ void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)
                cpufreq_unregister_notifier(&thermal_cpufreq_notifier_block,
                                            CPUFREQ_POLICY_NOTIFIER);
 
-       thermal_cooling_device_unregister(cpufreq_cdev->cdev);
+       thermal_cooling_device_unregister(cdev);
        ida_simple_remove(&cpufreq_ida, cpufreq_cdev->id);
        kfree(cpufreq_cdev->idle_time);
        kfree(cpufreq_cdev->freq_table);