clockevent: export register_device and delta2ns

Export the following symbols using EXPORT_SYMBOL_GPL:
 - clockevent_delta2ns
 - clockevents_register_device

This allows us to build SuperH clockevent and clocksource
drivers as modules, see drivers/clocksource/sh_*.c

[ Impact: allow modular build of clockevent drivers ]

Signed-off-by: Magnus Damm <[email protected]>
LKML-Reference: <20090501055247[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>

diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index d13be216a7905d1a538286322c242726a1af3aba..3948fa644a2db6e42072f48828d9e1f199ce90e9 100644 (file)
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -54,6 +54,7 @@ unsigned long clockevent_delta2ns(unsigned long latch,
 
        return (unsigned long) clc;
 }
+EXPORT_SYMBOL_GPL(clockevent_delta2ns);
 
 /**
  * clockevents_set_mode - set the operating mode of a clock event device
@@ -187,6 +188,7 @@ void clockevents_register_device(struct clock_event_device *dev)
 
        spin_unlock(&clockevents_lock);
 }
+EXPORT_SYMBOL_GPL(clockevents_register_device);
 
 /*
  * Noop handler when we shut down an event device