dt: Add empty of_match_node() macro

Add an empty macro for of_match_node() that will save
some '#ifdef CONFIG_OF' for non-dt builds.

I have chosen to use a macro instead of a function to
be able to avoid defining the first parameter.
In fact, this "struct of_device_id *" first parameter
is usualy not defined as well on non-dt builds.

Signed-off-by: Nicolas Ferre <[email protected]>
Acked-by: Grant Likely <[email protected]>

diff --git a/include/linux/of.h b/include/linux/of.h
index 736b7477beb2501d5f5e0c00dde6d13d2bc207f8..92c40a14224350ec2a24d9f158d0340e5bd17cfb 100644 (file)
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -303,6 +303,7 @@ static inline struct device_node *of_parse_phandle(struct device_node *np,
 }
 
 #define of_match_ptr(_ptr)     NULL
+#define of_match_node(_matches, _node) NULL
 #endif /* CONFIG_OF */
 
 static inline int of_property_read_u32(const struct device_node *np,