-struct side_list_node {
- struct side_list_node *next;
- struct side_list_node *prev;
-};
-
-struct side_list_head {
- struct side_list_node node;
-};
-
-#define DEFINE_SIDE_LIST_HEAD(_identifier) \
- struct side_list_head _identifier = { \
- .node = { \
- .next = &(_identifier).node, \
- .prev = &(_identifier).node, \
- }, \
- }