New routine to find a node on a list

metal_list_find_node is used to ensure a node is not on a list before adding it Signed-off-by: Tammy Leino <tammy_leino@mentor.com>
OpenAMP · Jul 26, 2022 · 5680b70 · 5680b70
1 parent 695d29b
commit 5680b70
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/lib/list.h b/lib/list.h
@@ -96,6 +96,18 @@ static inline struct metal_list *metal_list_first(struct metal_list *list)
 	for ((node) = (list)->next;		\
 	     (node) != (list);			\
 	     (node) = (node)->next)
+
+static inline int metal_list_find_node(struct metal_list *list,
+				       struct metal_list *node)
+{
+	struct metal_list *n;
+
+	metal_list_for_each(list, n) {
+		if (n == node)
+			break;
+	}
+	return (n == list) ? 0 : 1;
+}
 /** @} */
 
 #ifdef __cplusplus