[PATCH] mfd: as3722: mark PM functions as __maybe_unused

From: Arnd Bergmann
Date: Tue Dec 08 2015 - 10:21:41 EST

The newly introduced as3722_i2c_suspend/resume functions are built
unconditionally, but only used when power management is enabled,
so we get a warning otherwise:

drivers/mfd/as3722.c:427:12: warning: 'as3722_i2c_suspend' defined but not used [-Wunused-function]
drivers/mfd/as3722.c:438:12: warning: 'as3722_i2c_resume' defined but not used [-Wunused-function]

This marks them both as __maybe_unused, which avoids an ugly #ifdef
and gives us best compile-time coverage. When they are unused, the
compiler will silently drop the functions from its output.

Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Fixes: 35deff7eb212 ("mfd: as3722: Handle interrupts on suspend")
drivers/mfd/as3722.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c
index 3b21eb4bc480..e1f597f97f86 100644
--- a/drivers/mfd/as3722.c
+++ b/drivers/mfd/as3722.c
@@ -424,7 +424,7 @@ static int as3722_i2c_remove(struct i2c_client *i2c)
return 0;

-static int as3722_i2c_suspend(struct device *dev)
+static int __maybe_unused as3722_i2c_suspend(struct device *dev)
struct as3722 *as3722 = dev_get_drvdata(dev);

@@ -435,7 +435,7 @@ static int as3722_i2c_suspend(struct device *dev)
return 0;

-static int as3722_i2c_resume(struct device *dev)
+static int __maybe_unused as3722_i2c_resume(struct device *dev)
struct as3722 *as3722 = dev_get_drvdata(dev);


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