list_for_each_prev
#define list_for_each_prev(p, h) for (p = (h)->prev; p != (h); p = (p)->prev)
#define list_for_each_prev(p, h) for (p = (h)->prev; p != (h); p = (p)->prev)
#define list_for_each_prev(entry, head) \
#define list_for_each_prev(pos, head) \