From: Guennadi Liakhovetski <redacted>

If CONFIG_OF isn't defined, no declaration of of_get_parent will be found
and compilation can fail. This patch adds a dummy inline function
definition to fix the problem.

Signed-off-by: Guennadi Liakhovetski <redacted>
---
 include/linux/of.h |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/of.h b/include/linux/of.h
index b4e50d5..9ba8cf1 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h

@@ -427,6 +427,11 @@ static inline int of_parse_phandle_with_args(struct device_node *np,
 	return -ENOSYS;
 }
 
+static inline struct device_node *of_get_parent(const struct device_node *np)
+{
+	return NULL;
+}
+
 static inline int of_alias_get_id(struct device_node *np, const char *stem)
 {
 	return -ENOSYS;

-- 
1.7.9.5