kconfig: fix lists definition for C++

[carl9170fw.git] / config / list.h

diff --git a/config/list.h b/config/list.h
index b87206cc92f464650fad3a8ee4178ecfee6cf973..685d80e1bb0e77de75a97a2ada22991131597b58 100644 (file)
--- a/config/list.h
+++ b/config/list.h
@@ -101,4 +101,31 @@ static inline void list_add_tail(struct list_head *_new, struct list_head *head)
        __list_add(_new, head->prev, head);
 }
 
+/*
+ * Delete a list entry by making the prev/next entries
+ * point to each other.
+ *
+ * This is only for internal list manipulation where we know
+ * the prev/next entries already!
+ */
+static inline void __list_del(struct list_head *prev, struct list_head *next)
+{
+       next->prev = prev;
+       prev->next = next;
+}
+
+#define LIST_POISON1  ((void *) 0x00100100)
+#define LIST_POISON2  ((void *) 0x00200200)
+/**
+ * list_del - deletes entry from list.
+ * @entry: the element to delete from the list.
+ * Note: list_empty() on entry does not return true after this, the entry is
+ * in an undefined state.
+ */
+static inline void list_del(struct list_head *entry)
+{
+       __list_del(entry->prev, entry->next);
+       entry->next = (struct list_head*)LIST_POISON1;
+       entry->prev = (struct list_head*)LIST_POISON2;
+}
 #endif