cpuidle / sysfs: change function parameter

The function needs the cpuidle_device which is initially passed to the
caller.

The current code gets the struct device from the struct cpuidle_device,
pass it the cpuidle_add_sysfs function. This function calls
per_cpu(cpuidle_devices, cpu) to get the cpuidle_device.

This patch pass the cpuidle_device instead and simplify the code.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 3 insertions, 9 deletions

diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 5f809e337b89..84e62852e50a 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -408,13 +408,11 @@ void cpuidle_remove_state_sysfs(struct cpuidle_device *device)
  * cpuidle_add_sysfs - creates a sysfs instance for the target device
  * @dev: the target device
  */
-int cpuidle_add_sysfs(struct device *cpu_dev)
+int cpuidle_add_sysfs(struct cpuidle_device *dev)
 {
-        int cpu = cpu_dev->id;
-        struct cpuidle_device *dev;
+        struct device *cpu_dev = get_cpu_device((unsigned long)dev->cpu);
         int error;
 
-        dev = per_cpu(cpuidle_devices, cpu);
         error = kobject_init_and_add(&dev->kobj, &ktype_cpuidle, &cpu_dev->kobj,
                                      "cpuidle");
         if (!error)
@@ -426,11 +424,7 @@ int cpuidle_add_sysfs(struct device *cpu_dev)
  * cpuidle_remove_sysfs - deletes a sysfs instance on the target device
  * @dev: the target device
  */
-void cpuidle_remove_sysfs(struct device *cpu_dev)
+void cpuidle_remove_sysfs(struct cpuidle_device *dev)
 {
-        int cpu = cpu_dev->id;
-        struct cpuidle_device *dev;
-
-        dev = per_cpu(cpuidle_devices, cpu);
         kobject_put(&dev->kobj);
 }