linux-kernel - [PATCH 2/3] misc: bh1770glc: add CONFIG_PM

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Message-id: <001f01ce29f0$5097d260$f1c77720$%han@samsung.com>
Date:	Tue, 26 Mar 2013 16:05:36 +0900
From:	Jingoo Han <jg1.han@...sung.com>
To:	'Greg Kroah-Hartman' <gregkh@...uxfoundation.org>
Cc:	'Arnd Bergmann' <arnd@...db.de>, linux-kernel@...r.kernel.org,
	'Jingoo Han' <jg1.han@...sung.com>
Subject: [PATCH 2/3] misc: bh1770glc: add CONFIG_PM_SLEEP to suspend/resume
 functions

Add CONFIG_PM_SLEEP to suspend/resume functions to fix the following
build warning when CONFIG_PM_SLEEP is not selected. This is because
sleep PM callbacks defined by SET_SYSTEM_SLEEP_PM_OPS are only used
when the CONFIG_PM_SLEEP is enabled.

drivers/misc/bh1770glc.c:1314:12: warning: 'bh1770_suspend' defined but not used [-Wunused-function]
drivers/misc/bh1770glc.c:1324:12: warning: 'bh1770_resume' defined but not used [-Wunused-function]

Signed-off-by: Jingoo Han <jg1.han@...sung.com>
---
 drivers/misc/bh1770glc.c |    7 +------
 1 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/bh1770glc.c b/drivers/misc/bh1770glc.c
index 2ed8fc3..f4975f7 100644
--- a/drivers/misc/bh1770glc.c
+++ b/drivers/misc/bh1770glc.c
@@ -1310,7 +1310,7 @@ static int bh1770_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int bh1770_suspend(struct device *dev)
 {
 	struct i2c_client *client = container_of(dev, struct i2c_client, dev);
@@ -1346,11 +1346,6 @@ static int bh1770_resume(struct device *dev)
 	}
 	return ret;
 }
-
-#else
-#define bh1770_suspend	NULL
-#define bh1770_shutdown NULL
-#define bh1770_resume	NULL
 #endif
 
 #ifdef CONFIG_PM_RUNTIME
-- 
1.7.2.5


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