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As it is an out of tree modules,the function needs to be exproted. Signed-off-by: Enlin Mu --- include/linux/hrtimer.h | 1 + kernel/time/hrtimer.c | 6 ++++++ 2 files changed, 7 insertions(+) diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index aa1e65ccb615..2a37d2a8e808 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -277,6 +277,7 @@ static inline void hrtimer_start(struct hrtimer *timer, ktime_t tim, extern int hrtimer_cancel(struct hrtimer *timer); extern int hrtimer_try_to_cancel(struct hrtimer *timer); +extern struct hrtimer_cpu_base *get_hrtimer_cpu_base(int cpu); static inline void hrtimer_start_expires(struct hrtimer *timer, enum hrtimer_mode mode) diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index 70625dff62ce..f7cf7d48b91d 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -1309,6 +1309,12 @@ void hrtimer_start_range_ns(struct hrtimer *timer, ktime_t tim, } EXPORT_SYMBOL_GPL(hrtimer_start_range_ns); +struct hrtimer_cpu_base *get_hrtimer_cpu_base(int cpu) +{ + return &per_cpu(hrtimer_bases, cpu); +} +EXPORT_SYMBOL_GPL(get_hrtimer_cpu_base); + /** * hrtimer_try_to_cancel - try to deactivate a timer * @timer: hrtimer to stop -- 2.39.2