604 #define rcu_dereference_sparse(p, space) \  argument
605 	((void)(((typeof(*p) space *)p) == p))
607 #define rcu_dereference_sparse(p, space)  argument
610 #define __rcu_access_pointer(p, space) \  argument
613 	rcu_dereference_sparse(p, space); \
616 #define __rcu_dereference_check(p, c, space) \  argument
621 	rcu_dereference_sparse(p, space); \
624 #define __rcu_dereference_protected(p, c, space) \  argument
627 	rcu_dereference_sparse(p, space); \
631 #define __rcu_access_index(p, space) \  argument
634 	rcu_dereference_sparse(p, space); \