clocksource: fix compilation if no GENERIC_TIME

commit a362c638bdf052bf424bce7645d39b101090f6ba upstream

Commit a9238ce3bb0fda6e760780b702c6cbd3793087d3 broke compilation on
platforms that do not implement GENERIC_TIME (e.g. iop32x):

  kernel/time/clocksource.c: In function 'clocksource_register':
  kernel/time/clocksource.c:556: error: implicit declaration of function 'clocksource_max_deferment'

Provide the implementation of clocksource_max_deferment() also for
such platforms.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 5155dc3e2ea9c413ca3c053fa01261e33a385104..ecc7adbf0918626982201f0710b0abbccc452abf 100644 (file)
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -413,8 +413,6 @@ void clocksource_touch_watchdog(void)
        clocksource_resume_watchdog();
 }
 
-#ifdef CONFIG_GENERIC_TIME
-
 /**
  * clocksource_max_deferment - Returns max time the clocksource can be deferred
  * @cs:         Pointer to clocksource
@@ -456,6 +454,8 @@ static u64 clocksource_max_deferment(struct clocksource *cs)
        return max_nsecs - (max_nsecs >> 5);
 }
 
+#ifdef CONFIG_GENERIC_TIME
+
 /**
  * clocksource_select - Select the best clocksource available
  *