list: leverage list_is_head() for list_entry_is_head()

This is what list_is_head() exactly do.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Wei Yang <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

Author: RichardWeiYang

include/linux/list.h

@@ -766,7 +766,7 @@ static inline size_t list_count_nodes(struct list_head *head)
  * @member:	the name of the list_head within the struct.
  */
 #define list_entry_is_head(pos, head, member)				\
-	(&pos->member == (head))
+	list_is_head(&pos->member, (head))
 
 /**
  * list_for_each_entry	-	iterate over list of given type