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list: add list_for_each_entry_reverse macro

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Signed-off-by: Jiri Pirko <jiri@mellanox.com>
This commit is contained in:
Jiri Pirko 2016-04-15 09:51:44 +02:00 committed by Stephen Hemminger
parent ec7513faa9
commit f1239ca1f9
1 changed files with 11 additions and 0 deletions
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11
include/list.h
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@ -50,9 +50,15 @@ static inline void list_del(struct list_head *entry)
#define list_first_entry(ptr, type, member) \
list_entry((ptr)->next, type, member)
#define list_last_entry(ptr, type, member) \
list_entry((ptr)->prev, type, member)
#define list_next_entry(pos, member) \
list_entry((pos)->member.next, typeof(*(pos)), member)
#define list_prev_entry(pos, member) \
list_entry((pos)->member.prev, typeof(*(pos)), member)
#define list_for_each_entry(pos, head, member) \
for (pos = list_first_entry(head, typeof(*pos), member); \
&pos->member != (head); \
@ -64,6 +70,11 @@ static inline void list_del(struct list_head *entry)
&pos->member != (head); \
pos = n, n = list_next_entry(n, member))
#define list_for_each_entry_reverse(pos, head, member) \
for (pos = list_last_entry(head, typeof(*pos), member); \
&pos->member != (head); \
pos = list_prev_entry(pos, member))
struct hlist_head {
struct hlist_node *first;
};