[PATCH] x86, clocksource, fix !CONFIG_CLOCKSOURCE_WATCHDOG compile [v2]

[PATCH] x86, clocksource, fix !CONFIG_CLOCKSOURCE_WATCHDOG compile [v2]

[Prarit Bhargava]

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

v2: Oops ... move this to clocksource.h where it belongs

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
---
 include/linux/clocksource.h |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index 27cfda4..8292fe6 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -285,7 +285,12 @@ extern void clocksource_change_rating(struct clocksource *cs, int rating);
 extern void clocksource_suspend(void);
 extern void clocksource_resume(void);
 extern struct clocksource * __init __weak clocksource_default_clock(void);
+#ifdef CONFIG_CLOCKSOURCE_WATCHDOG
 extern void clocksource_mark_unstable(struct clocksource *cs);
+#else
+static inline void clocksource_mark_unstable(struct clocksource *cs) { }
+#endif
+
 
 extern void
 clocks_calc_mult_shift(u32 *mult, u32 *shift, u32 from, u32 to, u32 minsec);
-- 
1.7.9.3