Diffstat (limited to 'kernel/time/time.c')
1 files changed, 8 insertions, 1 deletions
diff --git a/kernel/time/time.c b/kernel/time/time.c
index 86751c68e08d..be115b020d27 100644
@@ -322,6 +322,13 @@ EXPORT_SYMBOL(timespec_trunc);
* -year/100+year/400 terms, and add 10.]
* This algorithm was first published by Gauss (I think).
+ * A leap second can be indicated by calling this function with sec as
+ * 60 (allowable under ISO 8601). The leap second is treated the same
+ * as the following second since they don't exist in UNIX time.
+ * An encoding of midnight at the end of the day as 24:00:00 - ie. midnight
+ * tomorrow - (allowable under ISO 8601) is supported.
time64_t mktime64(const unsigned int year0, const unsigned int mon0,
const unsigned int day, const unsigned int hour,
@@ -338,7 +345,7 @@ time64_t mktime64(const unsigned int year0, const unsigned int mon0,
(year/4 - year/100 + year/400 + 367*mon/12 + day) +
year*365 - 719499
- )*24 + hour /* now have hours */
+ )*24 + hour /* now have hours - midnight tomorrow handled here */
)*60 + min /* now have minutes */
)*60 + sec; /* finally seconds */