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Subject[PATCH 01/11] hrtimer: Add missing annotation to lock_hrtimer_base()
Sparse reports several warnings;
warning: context imbalance in lock_hrtimer_base() - wrong count at exit
warning: context imbalance in hrtimer_start_range_ns() - unexpected unlock
warning: context imbalance in hrtimer_try_to_cancel() - unexpected unlock
warning: context imbalance in __hrtimer_get_remaining() - unexpected unlock

The root cause is a missing annotation of lock_hrtimer_base() which
causes also the "unexpected unlock" warnings.

Add the missing __acquires(timer->base) annotation

Signed-off-by: Jules Irenge <>
kernel/time/hrtimer.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 3a609e7344f3..bb8340e2a3b9 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -160,6 +160,7 @@ static inline bool is_migration_base(struct hrtimer_clock_base *base)
struct hrtimer_clock_base *lock_hrtimer_base(const struct hrtimer *timer,
unsigned long *flags)
+ __acquires(timer->base)
struct hrtimer_clock_base *base;

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