1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/of.h b/include/linux/of.h
index a367e19bb3af..b0756f33249e 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -70,6 +70,11 @@ extern struct device_node *allnodes;
 extern struct device_node *of_chosen;
 extern rwlock_t devtree_lock;
 
+static inline bool of_node_is_root(const struct device_node *node)
+{
+        return node && (node->parent == NULL);
+}
+
 static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
 {
         return test_bit(flag, &n->_flags);