summaryrefslogtreecommitdiff
path: root/scripts/include/list.h
diff options
context:
space:
mode:
authorMark Brown <broonie@kernel.org>2024-10-07 14:01:00 +0100
committerMark Brown <broonie@kernel.org>2024-10-07 14:01:00 +0100
commit85eadae61931f6268b49b5722039e5a248b9ee4c (patch)
tree3ee81f25a394ce2a2ec706f0aff07515b78d4b01 /scripts/include/list.h
parentdc16594d9967773ca891b3d9111f152e3c99d1cf (diff)
parent8cf0b93919e13d1e8d4466eb4080a4c4d9d66d7b (diff)
regulator: Merge up v6.12-rc2
Pulls in a build fix for the KVM selftests.
Diffstat (limited to 'scripts/include/list.h')
-rw-r--r--scripts/include/list.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/scripts/include/list.h b/scripts/include/list.h
index fea1e2b79063..8bdcaadca709 100644
--- a/scripts/include/list.h
+++ b/scripts/include/list.h
@@ -128,6 +128,36 @@ static inline void list_del(struct list_head *entry)
}
/**
+ * list_replace - replace old entry by new one
+ * @old : the element to be replaced
+ * @new : the new element to insert
+ *
+ * If @old was empty, it will be overwritten.
+ */
+static inline void list_replace(struct list_head *old,
+ struct list_head *new)
+{
+ new->next = old->next;
+ new->next->prev = new;
+ new->prev = old->prev;
+ new->prev->next = new;
+}
+
+/**
+ * list_replace_init - replace old entry by new one and initialize the old one
+ * @old : the element to be replaced
+ * @new : the new element to insert
+ *
+ * If @old was empty, it will be overwritten.
+ */
+static inline void list_replace_init(struct list_head *old,
+ struct list_head *new)
+{
+ list_replace(old, new);
+ INIT_LIST_HEAD(old);
+}
+
+/**
* list_move - delete from one list and add as another's head
* @list: the entry to move
* @head: the head that will precede our entry
@@ -151,6 +181,26 @@ static inline void list_move_tail(struct list_head *list,
}
/**
+ * list_is_first -- tests whether @list is the first entry in list @head
+ * @list: the entry to test
+ * @head: the head of the list
+ */
+static inline int list_is_first(const struct list_head *list, const struct list_head *head)
+{
+ return list->prev == head;
+}
+
+/**
+ * list_is_last - tests whether @list is the last entry in list @head
+ * @list: the entry to test
+ * @head: the head of the list
+ */
+static inline int list_is_last(const struct list_head *list, const struct list_head *head)
+{
+ return list->next == head;
+}
+
+/**
* list_is_head - tests whether @list is the list @head
* @list: the entry to test
* @head: the head of the list