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rtc: sh: mark PM functions as unused

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The sh_rtc_set_irq_wake() function is only called from the suspend/resume handlers
that may be hidden, causing a harmless warning:

drivers/rtc/rtc-sh.c:724:13: error: 'sh_rtc_set_irq_wake' defined but not used [-Werror=unused-function]
 static void sh_rtc_set_irq_wake(struct device *dev, int enabled)

The most reliable way to avoid the warning is to remove the existing #ifdef
and mark the two functions as __maybe_unused so the compiler can silently
drop all three when there is no reference.

Fixes: dab5aec64b ("rtc: sh: add support for rza series")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Arnd Bergmann 2017-04-19 19:52:43 +02:00 committed by Alexandre Belloni
parent e73ef755fb
commit 5d05e81516
1 changed files with 2 additions and 4 deletions
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6
drivers/rtc/rtc-sh.c
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@ -734,8 +734,7 @@ static void sh_rtc_set_irq_wake(struct device *dev, int enabled)
}
}
#ifdef CONFIG_PM_SLEEP
static int sh_rtc_suspend(struct device *dev)
static int __maybe_unused sh_rtc_suspend(struct device *dev)
{
if (device_may_wakeup(dev))
sh_rtc_set_irq_wake(dev, 1);
@ -743,14 +742,13 @@ static int sh_rtc_suspend(struct device *dev)
return 0;
}
static int sh_rtc_resume(struct device *dev)
static int __maybe_unused sh_rtc_resume(struct device *dev)
{
if (device_may_wakeup(dev))
sh_rtc_set_irq_wake(dev, 0);
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(sh_rtc_pm_ops, sh_rtc_suspend, sh_rtc_resume);