linux-kernel - [PATCH] devfreq: event: Add 'const' keyword for devfreq_event

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Message-id: <1425947255-375-1-git-send-email-cw00.choi@samsung.com>
Date:	Tue, 10 Mar 2015 09:27:35 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	myungjoo.ham@...sung.com
Cc:	kyungmin.park@...sung.com, rafael.j.wysocki@...el.com,
	kgene.kim@...sung.com, linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Chanwoo Choi <cw00.choi@...sung.com>
Subject: [PATCH] devfreq: event: Add 'const' keyword for devfreq_event_ops
 structure

This patch adds the 'const' keyword for devfreq_event_ops structure
because the ops of devfreq_event_desc structure shold not be changed
after initialization.

Cc: Myungjoo Ham <myungjoo.ham@...sung.com>
Cc: Kyungmin Park <kyungmin.park@...sung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 drivers/devfreq/event/exynos-ppmu.c | 2 +-
 include/linux/devfreq-event.h       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/event/exynos-ppmu.c b/drivers/devfreq/event/exynos-ppmu.c
index ad83473..7d99d13 100644
--- a/drivers/devfreq/event/exynos-ppmu.c
+++ b/drivers/devfreq/event/exynos-ppmu.c
@@ -194,7 +194,7 @@ static int exynos_ppmu_get_event(struct devfreq_event_dev *edev,
 	return 0;
 }
 
-static struct devfreq_event_ops exynos_ppmu_ops = {
+static const struct devfreq_event_ops exynos_ppmu_ops = {
 	.disable = exynos_ppmu_disable,
 	.set_event = exynos_ppmu_set_event,
 	.get_event = exynos_ppmu_get_event,
diff --git a/include/linux/devfreq-event.h b/include/linux/devfreq-event.h
index 602fbbf..0a83a1e 100644
--- a/include/linux/devfreq-event.h
+++ b/include/linux/devfreq-event.h
@@ -91,7 +91,7 @@ struct devfreq_event_desc {
 	const char *name;
 	void *driver_data;
 
-	struct devfreq_event_ops *ops;
+	const struct devfreq_event_ops *ops;
 };
 
 #if defined(CONFIG_PM_DEVFREQ_EVENT)
-- 
1.8.5.5

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