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Diffstat (limited to 'include/linux/rtc.h')
-rw-r--r--include/linux/rtc.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 0f43b5027235..169d93520dbd 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -168,6 +168,9 @@ struct rtc_device {
#define rtc_lock(d) mutex_lock(&d->ops_lock)
#define rtc_unlock(d) mutex_unlock(&d->ops_lock)
+DEFINE_GUARD(rtc_ops, struct rtc_device *, mutex_lock(&_T->ops_lock),
+ mutex_unlock(&_T->ops_lock))
+
/* useful timestamps */
#define RTC_TIMESTAMP_BEGIN_0000 -62167219200ULL /* 0000-01-01 00:00:00 */
#define RTC_TIMESTAMP_BEGIN_1900 -2208988800LL /* 1900-01-01 00:00:00 */