To fix the following issues:
kernel/locking/rtmutex.c:1612: warning: Function parameter or member
'lock' not described in '__rt_mutex_futex_unlock'
kernel/locking/rtmutex.c:1612: warning: Function parameter or member
'wake_q' not described in '__rt_mutex_futex_unlock'
kernel/locking/rtmutex.c:1675: warning: Function parameter or member
'name' not described in '__rt_mutex_init'
kernel/locking/rtmutex.c:1675: warning: Function parameter or member
'key' not described in '__rt_mutex_init'

Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Peter Zijlstra <peterz@infradead.org> 
Cc: Ingo Molnar <mingo@redhat.com> 
Cc: Will Deacon <will@kernel.org> 
Cc: linux-kernel@vger.kernel.org 
---
 kernel/locking/rtmutex.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index cfdd5b93264d..50fa521fe767 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -1604,8 +1604,11 @@ void __sched rt_mutex_unlock(struct rt_mutex *lock)
 EXPORT_SYMBOL_GPL(rt_mutex_unlock);
 
 /**
- * Futex variant, that since futex variants do not use the fast-path, can be
- * simple and will not need to retry.
+ * __rt_mutex_futex_unlock - Futex variant, that since futex variants
+ * do not use the fast-path, can be simple and will not need to retry.
+ *
+ * @lock: the rt_mutex to be unlocked
+ * @wake_q: wake queue head from which get the next lock waiter
  */
 bool __sched __rt_mutex_futex_unlock(struct rt_mutex *lock,
 				    struct wake_q_head *wake_q)
@@ -1665,6 +1668,8 @@ EXPORT_SYMBOL_GPL(rt_mutex_destroy);
  * __rt_mutex_init - initialize the rt lock
  *
  * @lock: the rt lock to be initialized
+ * @name: the lock name used for debug
+ * @key: the lock class key used for debug
  *
  * Initialize the rt lock to unlocked state.
  *
-- 
2.29.GIT