UPSTREAM: timer: Export destroy_hrtimer_on_stack()

hrtimer_init_on_stack() needs a matching call to
destroy_hrtimer_on_stack(), so both need to be exported.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit c08376ac97cb202ec65320f3d90d5c4c5e2adb0b)
[astrachan: Fixes {i386,amd64}-allmodconfig build failure in vsoc.ko
 noticed by kernelci.org project building kernel/common]
Bug: 79376877
Change-Id: If4d5c466255019322ea21ef38ee5b1b382cce969
Signed-off-by: Alistair Strachan <astrachan@google.com>
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index c98439fd..662dc41 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -430,6 +430,7 @@
 {
 	debug_object_free(timer, &hrtimer_debug_descr);
 }
+EXPORT_SYMBOL_GPL(destroy_hrtimer_on_stack);
 
 #else
 static inline void debug_hrtimer_init(struct hrtimer *timer) { }