From 472647dcd7e351dbeda750e5ab3e8f7b06d1199a Mon Sep 17 00:00:00 2001 From: John Stultz Date: Fri, 29 Apr 2011 15:03:10 -0700 Subject: timers: Fix alarmtimer build issues when CONFIG_RTC_CLASS=n Ingo pointed out that the alarmtimers won't build if CONFIG_RTC_CLASS=n. This patch adds proper ifdefs to the alarmtimer code to disable the rtc usage if it is not built in. Reported-by: Ingo Molnar Signed-off-by: John Stultz Signed-off-by: Thomas Gleixner --- kernel/time/alarmtimer.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) (limited to 'kernel') diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 491e37b8de1..9265014cb4d 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -42,9 +42,11 @@ static struct alarm_base { clockid_t base_clockid; } alarm_bases[ALARM_NUMTYPE]; +#ifdef CONFIG_RTC_CLASS /* rtc timer and device for setting alarm wakeups at suspend */ static struct rtc_timer rtctimer; static struct rtc_device *rtcdev; +#endif /* freezer delta & lock used to handle clock_nanosleep triggered wakeups */ static ktime_t freezer_delta; @@ -148,7 +150,7 @@ static enum hrtimer_restart alarmtimer_fired(struct hrtimer *timer) } - +#ifdef CONFIG_RTC_CLASS /** * alarmtimer_suspend - Suspend time callback * @dev: unused @@ -206,7 +208,12 @@ static int alarmtimer_suspend(struct device *dev) return 0; } - +#else +static int alarmtimer_suspend(struct device *dev) +{ + return 0; +} +#endif static void alarmtimer_freezerset(ktime_t absexp, enum alarmtimer_type type) { @@ -631,6 +638,7 @@ static int __init alarmtimer_init(void) } device_initcall(alarmtimer_init); +#ifdef CONFIG_RTC_CLASS /** * has_wakealarm - check rtc device has wakealarm ability * @dev: current device @@ -675,4 +683,12 @@ static int __init alarmtimer_init_late(void) return 0; } +#else +static int __init alarmtimer_init_late(void) +{ + printk(KERN_WARNING "Kernel not built with RTC support, ALARM timers" + " will not wake from suspend"); + return 0; +} +#endif late_initcall(alarmtimer_init_late); -- cgit v1.2.3-70-g09d2