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power: ipaq-micro-battery: use __maybe_unused to hide pm functions 

The ipaq micro battery driver has suspend/resume functions that
are accessed using SIMPLE_DEV_PM_OPS, which hide the reference
when CONFIG_PM_SLEEP is not set, resulting in a warning about
unused functions:

drivers/power/ipaq_micro_battery.c:284:12: error: 'micro_batt_suspend' defined but not used [-Werror=unused-function]
drivers/power/ipaq_micro_battery.c:292:12: error: 'micro_batt_resume' defined but not used [-Werror=unused-function]

This adds __maybe_unused annotations to let the compiler know
it can silently drop the function definition.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Arnd Bergmann 2016-03-02 16:58:55 +01:00 committed by Sebastian Reichel
parent 9761dca68c
commit 298cb0f192
1 changed files with 2 additions and 2 deletions
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4
drivers/power/ipaq_micro_battery.c
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@ -281,7 +281,7 @@ static int micro_batt_remove(struct platform_device *pdev)
return 0;
}
static int micro_batt_suspend(struct device *dev)
static int __maybe_unused micro_batt_suspend(struct device *dev)
{
struct micro_battery *mb = dev_get_drvdata(dev);
@ -289,7 +289,7 @@ static int micro_batt_suspend(struct device *dev)
return 0;
}
static int micro_batt_resume(struct device *dev)
static int __maybe_unused micro_batt_resume(struct device *dev)
{
struct micro_battery *mb = dev_get_drvdata(dev);