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Date:   Fri, 12 May 2017 10:59:47 -0300
From:   Mauro Carvalho Chehab <mchehab@...pensource.com>
To:     linux-kernel@...r.kernel.org,
        Linux Doc Mailing List <linux-doc@...r.kernel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Mauro Carvalho Chehab <mchehab@...radead.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Darren Hart <dvhart@...radead.org>
Subject: [PATCH 04/36] mutex, futex: adjust kernel-doc markups to generate ReST

There are a few issues on some kernel-doc markups that was
causing troubles with kernel-doc output on ReST format.
Fix them.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
---
 include/linux/mutex.h  |  6 +++---
 kernel/futex.c         | 40 ++++++++++++++++++++--------------------
 kernel/locking/mutex.c |  6 ++++--
 3 files changed, 27 insertions(+), 25 deletions(-)

diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 1127fe31645d..ffcba1f337da 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -214,9 +214,9 @@ enum mutex_trylock_recursive_enum {
  * raisins, and once those are gone this will be removed.
  *
  * Returns:
- *  MUTEX_TRYLOCK_FAILED    - trylock failed,
- *  MUTEX_TRYLOCK_SUCCESS   - lock acquired,
- *  MUTEX_TRYLOCK_RECURSIVE - we already owned the lock.
+ *  - MUTEX_TRYLOCK_FAILED    - trylock failed,
+ *  - MUTEX_TRYLOCK_SUCCESS   - lock acquired,
+ *  - MUTEX_TRYLOCK_RECURSIVE - we already owned the lock.
  */
 static inline /* __deprecated */ __must_check enum mutex_trylock_recursive_enum
 mutex_trylock_recursive(struct mutex *lock)
diff --git a/kernel/futex.c b/kernel/futex.c
index 357348a6cf6b..b8ae87d227da 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -488,7 +488,7 @@ static void drop_futex_key_refs(union futex_key *key)
  *
  * Return: a negative error code or 0
  *
- * The key words are stored in *key on success.
+ * The key words are stored in @key on success.
  *
  * For shared mappings, it's (page->index, file_inode(vma->vm_file),
  * offset_within_page).  For private mappings, it's (uaddr, current->mm).
@@ -1259,9 +1259,9 @@ static int lock_pi_update_atomic(u32 __user *uaddr, u32 uval, u32 newval)
  * @set_waiters:	force setting the FUTEX_WAITERS bit (1) or not (0)
  *
  * Return:
- *  0 - ready to wait;
- *  1 - acquired the lock;
- * <0 - error
+ *  -  0 - ready to wait;
+ *  -  1 - acquired the lock;
+ *  - <0 - error
  *
  * The hb->lock and futex_key refs shall be held by the caller.
  */
@@ -1717,9 +1717,9 @@ void requeue_pi_wake_futex(struct futex_q *q, union futex_key *key,
  * hb1 and hb2 must be held by the caller.
  *
  * Return:
- *  0 - failed to acquire the lock atomically;
- * >0 - acquired the lock, return value is vpid of the top_waiter
- * <0 - error
+ *  -  0 - failed to acquire the lock atomically;
+ *  - >0 - acquired the lock, return value is vpid of the top_waiter
+ *  - <0 - error
  */
 static int futex_proxy_trylock_atomic(u32 __user *pifutex,
 				 struct futex_hash_bucket *hb1,
@@ -1785,8 +1785,8 @@ static int futex_proxy_trylock_atomic(u32 __user *pifutex,
  * uaddr2 atomically on behalf of the top waiter.
  *
  * Return:
- * >=0 - on success, the number of tasks requeued or woken;
- *  <0 - on error
+ *  - >=0 - on success, the number of tasks requeued or woken;
+ *  -  <0 - on error
  */
 static int futex_requeue(u32 __user *uaddr1, unsigned int flags,
 			 u32 __user *uaddr2, int nr_wake, int nr_requeue,
@@ -2142,8 +2142,8 @@ static inline void queue_me(struct futex_q *q, struct futex_hash_bucket *hb)
  * be paired with exactly one earlier call to queue_me().
  *
  * Return:
- *   1 - if the futex_q was still queued (and we removed unqueued it);
- *   0 - if the futex_q was already removed by the waking thread
+ *  - 1 - if the futex_q was still queued (and we removed unqueued it);
+ *  - 0 - if the futex_q was already removed by the waking thread
  */
 static int unqueue_me(struct futex_q *q)
 {
@@ -2333,9 +2333,9 @@ static long futex_wait_restart(struct restart_block *restart);
  * acquire the lock. Must be called with the hb lock held.
  *
  * Return:
- *  1 - success, lock taken;
- *  0 - success, lock not taken;
- * <0 - on error (-EFAULT)
+ *  -  1 - success, lock taken;
+ *  -  0 - success, lock not taken;
+ *  - <0 - on error (-EFAULT)
  */
 static int fixup_owner(u32 __user *uaddr, struct futex_q *q, int locked)
 {
@@ -2422,8 +2422,8 @@ static void futex_wait_queue_me(struct futex_hash_bucket *hb, struct futex_q *q,
  * with no q.key reference on failure.
  *
  * Return:
- *  0 - uaddr contains val and hb has been locked;
- * <1 - -EFAULT or -EWOULDBLOCK (uaddr does not contain val) and hb is unlocked
+ *  -  0 - uaddr contains val and hb has been locked;
+ *  - <1 - -EFAULT or -EWOULDBLOCK (uaddr does not contain val) and hb is unlocked
  */
 static int futex_wait_setup(u32 __user *uaddr, u32 val, unsigned int flags,
 			   struct futex_q *q, struct futex_hash_bucket **hb)
@@ -2895,8 +2895,8 @@ static int futex_unlock_pi(u32 __user *uaddr, unsigned int flags)
  * called with the hb lock held.
  *
  * Return:
- *  0 = no early wakeup detected;
- * <0 = -ETIMEDOUT or -ERESTARTNOINTR
+ *  -  0 = no early wakeup detected;
+ *  - <0 = -ETIMEDOUT or -ERESTARTNOINTR
  */
 static inline
 int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb,
@@ -2968,8 +2968,8 @@ int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb,
  * If 4 or 7, we cleanup and return with -ETIMEDOUT.
  *
  * Return:
- *  0 - On success;
- * <0 - On error
+ *  -  0 - On success;
+ *  - <0 - On error
  */
 static int futex_wait_requeue_pi(u32 __user *uaddr, unsigned int flags,
 				 u32 val, ktime_t *abs_time, u32 bitset,
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index 198527a62149..b88b493c9512 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -227,9 +227,11 @@ static void __sched __mutex_lock_slowpath(struct mutex *lock);
  * (or statically defined) before it can be locked. memset()-ing
  * the mutex to 0 is not allowed.
  *
- * ( The CONFIG_DEBUG_MUTEXES .config option turns on debugging
+ * .. note::
+ *
+ *   The CONFIG_DEBUG_MUTEXES .config option turns on debugging
  *   checks that will enforce the restrictions and will also do
- *   deadlock debugging. )
+ *   deadlock debugging.
  *
  * This function is similar to (but not equivalent to) down().
  */
-- 
2.9.3

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