hrtimers: add missing docbook comments to struct hrtimer

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 7 insertions, 2 deletions

diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index cb25c1cc2352..58bca8e9bae1 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -103,9 +103,14 @@ enum hrtimer_cb_mode {
 /**
  * struct hrtimer - the basic hrtimer structure
  * @node:       red black tree node for time ordered insertion
- * @expires:    the absolute expiry time in the hrtimers internal
+ * @_expires:   the absolute expiry time in the hrtimers internal
  *              representation. The time is related to the clock on
- *              which the timer is based.
+ *              which the timer is based. Is setup by adding
+ *              slack to the _softexpires value. For non range timers
+ *              identical to _softexpires.
+ * @_softexpires: the absolute earliest expiry time of the hrtimer.
+ *              The time which was given as expiry time when the timer
+ *              was armed.
  * @function:   timer expiry callback function
  * @base:       pointer to the timer base (per cpu and per clock)
  * @state:      state information (See bit values above)