cpuidle: ladder governor - use macro instead of hardcoded value

use CPUIDLE_DRIVER_STATE_START, instead of hardcoded value 0. As,
CPUIDLE_DRIVER_STATE_START can be 1/0 based on
CONFIG_ARCH_HAS_CPU_RELAX is defined or not.

Signed-off-by: Mohammad Merajul Islam Molla <meraj.enigma@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index 9f08e8cce1af89c17b14bfed7358382b7ae3e542..044ee0df5871949b8c1e0c0c744b4db068d4ba57 100644 (file)
--- a/drivers/cpuidle/governors/ladder.c
+++ b/drivers/cpuidle/governors/ladder.c
@@ -144,7 +144,7 @@ static int ladder_enable_device(struct cpuidle_driver *drv,
 
        ldev->last_state_idx = CPUIDLE_DRIVER_STATE_START;
 
-       for (i = 0; i < drv->state_count; i++) {
+       for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++) {
                state = &drv->states[i];
                lstate = &ldev->states[i];
 
@@ -156,7 +156,7 @@ static int ladder_enable_device(struct cpuidle_driver *drv,
 
                if (i < drv->state_count - 1)
                        lstate->threshold.promotion_time = state->exit_latency;
-               if (i > 0)
+               if (i > CPUIDLE_DRIVER_STATE_START)
                        lstate->threshold.demotion_time = state->exit_latency;
        }