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-rw-r--r--sys/amd64/include/clock.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/sys/amd64/include/clock.h b/sys/amd64/include/clock.h
index 36d0bebe00cf..30c2f26ec7c6 100644
--- a/sys/amd64/include/clock.h
+++ b/sys/amd64/include/clock.h
@@ -22,7 +22,8 @@ extern u_int timer_freq;
extern int timer0_max_count;
extern uint64_t tsc_freq;
extern int tsc_is_broken;
-extern struct mtx clock_lock;
+
+void i8254_init(void);
/*
* Driver to clock driver interface.