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-rw-r--r--include/linux/of.h5
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);