[LIST]: Introduce list_for_each_entry_safe_continue

Used in the dccp CCID3 code, that is going to be submitted RSN.

Signed-off-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/list.h b/include/linux/list.h
index aab2db21b013e438c672dbfe4fcceb065bf578d3..597094e0fdb5cc90a6ab1cb5b3c2fb5578bc1b0d 100644 (file)
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -418,6 +418,19 @@ static inline void list_splice_init(struct list_head *list,
             &pos->member != (head);                                    \
             pos = n, n = list_entry(n->member.next, typeof(*n), member))
 
+/**
+ * list_for_each_entry_safe_continue - iterate over list of given type
+ *                     continuing after existing point safe against removal of list entry
+ * @pos:       the type * to use as a loop counter.
+ * @n:         another type * to use as temporary storage
+ * @head:      the head for your list.
+ * @member:    the name of the list_struct within the struct.
+ */
+#define list_for_each_entry_safe_continue(pos, n, head, member)                \
+       for (pos = n, n = list_entry(n->member.next, typeof(*n), member);       \
+            &pos->member != (head);                                            \
+            pos = n, n = list_entry(n->member.next, typeof(*n), member))
+
 /**
  * list_for_each_rcu   -       iterate over an rcu-protected list
  * @pos:       the &struct list_head to use as a loop counter.