diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 37f9279192a..3bef961b58b 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -140,6 +140,7 @@ struct hrtimer_sleeper {
 
 /**
  * struct hrtimer_base - the timer base for a specific clock
+ * @cpu_base:		per cpu clock base
  * @index:		clock type index for per_cpu support when moving a
  *			timer to a base on another cpu.
  * @active:		red black tree root node for the active timers
diff --git a/kernel/relay.c b/kernel/relay.c
index ef8a935710a..577f251c7e2 100644
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -474,13 +474,12 @@ static void setup_callbacks(struct rchan *chan,
 }
 
 /**
- *
  * 	relay_hotcpu_callback - CPU hotplug callback
  * 	@nb: notifier block
  * 	@action: hotplug action to take
  * 	@hcpu: CPU number
  *
- * 	Returns the success/failure of the operation. (NOTIFY_OK, NOTIFY_BAD)
+ * 	Returns the success/failure of the operation. (%NOTIFY_OK, %NOTIFY_BAD)
  */
 static int __cpuinit relay_hotcpu_callback(struct notifier_block *nb,
 				unsigned long action,
diff --git a/kernel/timer.c b/kernel/timer.c
index d033313bf53..6663a87f730 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -711,6 +711,7 @@ static unsigned long cmp_next_hrtimer_event(unsigned long now,
 
 /**
  * next_timer_interrupt - return the jiffy of the next pending timer
+ * @now: current time (in jiffies)
  */
 unsigned long get_next_timer_interrupt(unsigned long now)
 {
diff --git a/lib/bitmap.c b/lib/bitmap.c
index ee6e58fce8f..26ebafa8c41 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -97,10 +97,10 @@ EXPORT_SYMBOL(__bitmap_complement);
 
 /**
  * __bitmap_shift_right - logical right shift of the bits in a bitmap
- *   @dst - destination bitmap
- *   @src - source bitmap
- *   @nbits - shift by this many bits
- *   @bits - bitmap size, in bits
+ *   @dst : destination bitmap
+ *   @src : source bitmap
+ *   @shift : shift by this many bits
+ *   @bits : bitmap size, in bits
  *
  * Shifting right (dividing) means moving bits in the MS -> LS bit
  * direction.  Zeros are fed into the vacated MS positions and the
@@ -141,10 +141,10 @@ EXPORT_SYMBOL(__bitmap_shift_right);
 
 /**
  * __bitmap_shift_left - logical left shift of the bits in a bitmap
- *   @dst - destination bitmap
- *   @src - source bitmap
- *   @nbits - shift by this many bits
- *   @bits - bitmap size, in bits
+ *   @dst : destination bitmap
+ *   @src : source bitmap
+ *   @shift : shift by this many bits
+ *   @bits : bitmap size, in bits
  *
  * Shifting left (multiplying) means moving bits in the LS -> MS
  * direction.  Zeros are fed into the vacated LS bit positions
diff --git a/mm/slab.c b/mm/slab.c
index 8fdaffa717e..57f7aa42006 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -4026,7 +4026,7 @@ void drain_array(struct kmem_cache *cachep, struct kmem_list3 *l3,
 
 /**
  * cache_reap - Reclaim memory from caches.
- * @unused: unused parameter
+ * @w: work descriptor
  *
  * Called from workqueue/eventd every few seconds.
  * Purpose: