diff options
Diffstat (limited to 'lib/list')
| -rw-r--r-- | lib/list/list.h | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/lib/list/list.h b/lib/list/list.h index dfe4813..d93f8a8 100644 --- a/lib/list/list.h +++ b/lib/list/list.h @@ -22,17 +22,19 @@ struct list { #define list_for_each(_list, _pos) \ for (_pos = (_list)->head.next; _pos != ((_list)->head); _pos = _pos->next) -#define list_entry(_ptr, _type, _member) \ - container_of(_ptr, _type, _member) +#define list_entry(_ptr, _type, _member, _list) \ + (&container_of(_ptr, _type, _member)->_member == &((_list)->head) \ + ? NULL \ + : container_of(_ptr, _type, _member)) #define list_for_each_entry(_list, _pos, _member) \ - for (_pos = list_entry((_list)->head.next, typeof(*_pos), _member); \ - &_pos->_member != &(_list)->head; \ - _pos = list_entry(_pos->_member.next, typeof(*_pos), _member)) + for (_pos = list_entry((_list)->head.next, typeof(*_pos), _member, _list); \ + _pos; \ + _pos = list_entry(_pos->_member.next, typeof(*_pos), _member, _list)) #define list_for_each_entry_continue(_list, _pos, _member) \ - for (; &_pos->_member != &(_list)->head; \ - _pos = list_entry(_pos->_member.next, typeof(*_pos), _member)) + for (; _pos; \ + _pos = list_entry(_pos->_member.next, typeof(*_pos), _member, _list)) #define STATIC_LIST(_list) static struct list _list = { \ .head = { \ |
