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authorGeoff Levand <geoff@infradead.org>2011-11-11 22:52:05 -0800
committerGeoff Levand <geoff@infradead.org>2011-11-11 22:52:05 -0800
commitb8e57298d53e38d660128a795a4c12ecccfde964 (patch)
tree99060a24ded932c2ac647391cb160f71576c5936 /lib
parentf5e1863e0e0a4fae56192cd588deb687edbfcda4 (diff)
downloadtalos-petitboot-b8e57298d53e38d660128a795a4c12ecccfde964.tar.gz
talos-petitboot-b8e57298d53e38d660128a795a4c12ecccfde964.zip
Add list_prev_entry, list_next_entry
Signed-off-by: Geoff Levand <geoff@infradead.org>
Diffstat (limited to 'lib')
-rw-r--r--lib/list/list.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/list/list.h b/lib/list/list.h
index d93f8a8..7f9955f 100644
--- a/lib/list/list.h
+++ b/lib/list/list.h
@@ -27,14 +27,19 @@ struct list {
? NULL \
: container_of(_ptr, _type, _member))
+#define list_prev_entry(_list, _pos, _member) \
+ list_entry(_pos->_member.prev, typeof(*_pos), _member, _list)
+
+#define list_next_entry(_list, _pos, _member) \
+ list_entry(_pos->_member.next, typeof(*_pos), _member, _list)
+
#define list_for_each_entry(_list, _pos, _member) \
for (_pos = list_entry((_list)->head.next, typeof(*_pos), _member, _list); \
- _pos; \
- _pos = list_entry(_pos->_member.next, typeof(*_pos), _member, _list))
+ _pos; _pos = list_next_entry(_list, _pos, _member))
#define list_for_each_entry_continue(_list, _pos, _member) \
- for (; _pos; \
- _pos = list_entry(_pos->_member.next, typeof(*_pos), _member, _list))
+ for (; _pos; _pos = list_next_entry(_list, _pos, _member))
+
#define STATIC_LIST(_list) static struct list _list = { \
.head = { \
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