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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-18 09:17:17 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-18 09:17:17 -0800
commitcbf50a4125f5242dd70b1f2342dbba2d94c6d94e (patch)
treea97a067e53f32e246034fbbb07e2c0894c279391 /drivers/cpuidle/driver.c
parent7a8ea7ebe4cf698918e7d3c860587e815eaa0f28 (diff)
parent7d1f9aeff1ee4a20b1aeb377dd0f579fe9647619 (diff)
Merge 3.8-rc4 into usb-next
This pulls in all of the -rc4 fixes into usb-next to sync things up. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/cpuidle/driver.c')
-rw-r--r--drivers/cpuidle/driver.c33
1 files changed, 1 insertions, 32 deletions
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 3af841fb397..422c7b69ba7 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -19,34 +19,9 @@ DEFINE_SPINLOCK(cpuidle_driver_lock);
static void __cpuidle_set_cpu_driver(struct cpuidle_driver *drv, int cpu);
static struct cpuidle_driver * __cpuidle_get_cpu_driver(int cpu);
-static void set_power_states(struct cpuidle_driver *drv)
-{
- int i;
-
- /*
- * cpuidle driver should set the drv->power_specified bit
- * before registering if the driver provides
- * power_usage numbers.
- *
- * If power_specified is not set,
- * we fill in power_usage with decreasing values as the
- * cpuidle code has an implicit assumption that state Cn
- * uses less power than C(n-1).
- *
- * With CONFIG_ARCH_HAS_CPU_RELAX, C0 is already assigned
- * an power value of -1. So we use -2, -3, etc, for other
- * c-states.
- */
- for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++)
- drv->states[i].power_usage = -1 - i;
-}
-
static void __cpuidle_driver_init(struct cpuidle_driver *drv)
{
drv->refcnt = 0;
-
- if (!drv->power_specified)
- set_power_states(drv);
}
static int __cpuidle_register_driver(struct cpuidle_driver *drv, int cpu)
@@ -235,16 +210,10 @@ EXPORT_SYMBOL_GPL(cpuidle_get_driver);
*/
struct cpuidle_driver *cpuidle_get_cpu_driver(struct cpuidle_device *dev)
{
- struct cpuidle_driver *drv;
-
if (!dev)
return NULL;
- spin_lock(&cpuidle_driver_lock);
- drv = __cpuidle_get_cpu_driver(dev->cpu);
- spin_unlock(&cpuidle_driver_lock);
-
- return drv;
+ return __cpuidle_get_cpu_driver(dev->cpu);
}
EXPORT_SYMBOL_GPL(cpuidle_get_cpu_driver);