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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-10-14 08:03:44 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-10-14 08:03:44 +0200
commit64f3b5a6bc49adf77d58eddd72a4bfccd492fa24 (patch)
treecdd6aa7a0d21482ae4d1e76d837f3712c8c6481d /scripts/include/list.h
parentUSB: chaoskey: Fix possible deadlock chaoskey_list_lock (diff)
parentLinux 6.12-rc3 (diff)
downloadlinux-64f3b5a6bc49adf77d58eddd72a4bfccd492fa24.tar.gz
linux-64f3b5a6bc49adf77d58eddd72a4bfccd492fa24.zip
Merge 6.12-rc3 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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