linux-kernel - [PATCH] cpuidle: ladder governor - use macro instead of hardcoded value

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Message-Id: <1406519930-5159-1-git-send-email-meraj.enigma@gmail.com>
Date:	Mon, 28 Jul 2014 09:58:50 +0600
From:	Mohammad Merajul Islam Molla <meraj.enigma@...il.com>
To:	linux-pm@...r.kernel.org
Cc:	rjw@...ysocki.net, daniel.lezcano@...aro.org,
	linux-kernel@...r.kernel.org,
	Mohammad Merajul Islam Molla <meraj.enigma@...il.com>
Subject: [PATCH] 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@...il.com>
---
 drivers/cpuidle/governors/ladder.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index 9f08e8c..044ee0d 100644
--- 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;
 	}
 
-- 
1.9.1

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