46 #define DRMLISTADD(__item, __list)		\  argument
48     (__item)->prev = (__list);			\
49     (__item)->next = (__list)->next;		\
50     (__list)->next->prev = (__item);		\
51     (__list)->next = (__item);			\
54 #define DRMLISTADDTAIL(__item, __list)		\  argument
56     (__item)->next = (__list);			\
57     (__item)->prev = (__list)->prev;		\
58     (__list)->prev->next = (__item);		\
59     (__list)->prev = (__item);			\
81 #define DRMLISTSINGLE(__list) \  argument
82 	(!DRMLISTEMPTY(__list) && ((__list)->next == (__list)->prev))
84 #define DRMLISTFOREACH(__item, __list)					\  argument
85 	for ((__item) = (__list)->next;					\
86 	     (__item) != (__list); (__item) = (__item)->next)
88 #define DRMLISTFOREACHSAFE(__item, __temp, __list)			\  argument
89 	for ((__item) = (__list)->next, (__temp) = (__item)->next;	\
90 	     (__item) != (__list);					\
93 #define DRMLISTFOREACHSAFEREVERSE(__item, __temp, __list)		\  argument
94 	for ((__item) = (__list)->prev, (__temp) = (__item)->prev;	\
95 	     (__item) != (__list);					\
98 #define DRMLISTFOREACHENTRY(__item, __list, __head)                            \  argument
99 	for ((__item) = DRMLISTENTRY(typeof(*__item), (__list)->next, __head); \
100 	     &(__item)->__head != (__list);                                    \
104 #define DRMLISTFOREACHENTRYSAFE(__item, __temp, __list, __head)                \  argument
105 	for ((__item) = DRMLISTENTRY(typeof(*__item), (__list)->next, __head), \
108 	     &(__item)->__head != (__list);                                    \
113 #define DRMLISTJOIN(__list, __join) if (!DRMLISTEMPTY(__list)) {	\  argument
114 	(__list)->next->prev = (__join);				\
115 	(__list)->prev->next = (__join)->next;				\
116 	(__join)->next->prev = (__list)->prev;				\
117 	(__join)->next = (__list)->next;				\