diff --git a/mm/balloon_compaction.c b/mm/balloon_compaction.c
index f77b305b0459..7e37a7af9ef0 100644
--- a/mm/balloon_compaction.c
+++ b/mm/balloon_compaction.c
@@ -17,7 +17,7 @@
  */
 static DEFINE_SPINLOCK(balloon_pages_lock);
 
-/*
+/**
  * balloon_page_insert - insert a page into the balloon's page list and make
  *			 the page->private assignment accordingly.
  * @balloon : pointer to balloon device
@@ -37,7 +37,7 @@ static void balloon_page_insert(struct balloon_dev_info *balloon,
 	list_add(&page->lru, &balloon->pages);
 }
 
-/*
+/**
  * balloon_page_finalize - prepare a balloon page that was removed from the
  *			   balloon list for release to the page allocator
  * @page: page to be released to the page allocator
@@ -135,7 +135,7 @@ size_t balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info,
 }
 EXPORT_SYMBOL_GPL(balloon_page_list_dequeue);
 
-/*
+/**
  * balloon_page_alloc - allocates a new page for insertion into the balloon
  *			page list.
  *
@@ -158,7 +158,7 @@ struct page *balloon_page_alloc(void)
 }
 EXPORT_SYMBOL_GPL(balloon_page_alloc);
 
-/*
+/**
  * balloon_page_enqueue - inserts a new page into the balloon page list.
  *
  * @b_dev_info: balloon device descriptor where we will insert a new page
@@ -181,7 +181,7 @@ void balloon_page_enqueue(struct balloon_dev_info *b_dev_info,
 }
 EXPORT_SYMBOL_GPL(balloon_page_enqueue);
 
-/*
+/**
  * balloon_page_dequeue - removes a page from balloon's page list and returns
  *			  its address to allow the driver to release the page.
  * @b_dev_info: balloon device descriptor where we will grab a page from.