[PATCH] x86, clocksource, fix !CONFIG_CLOCKSOURCE_WATCHDOG compile

[Prarit Bhargava]

If I explicitly disable the clocksource watchdog in the x86 Kconfig,
the x86 kernel will not compile unless this is properly defined.

Signed-off-by: Prarit Bhargava <prarit@xxxxxxxxxx>
Cc: John Stultz <john.stultz@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: x86@xxxxxxxxxx
---
 kernel/time/clocksource.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index c958338..e04821f 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -450,6 +450,7 @@ static void clocksource_enqueue_watchdog(struct clocksource *cs)
 static inline void clocksource_dequeue_watchdog(struct clocksource *cs) { }
 static inline void clocksource_resume_watchdog(void) { }
 static inline int clocksource_watchdog_kthread(void *data) { return 0; }
+void clocksource_mark_unstable(struct clocksource *cs) { }
 
 #endif /* CONFIG_CLOCKSOURCE_WATCHDOG */
 
-- 
1.7.9.3

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