of: implement of_node_to_nid as a weak function
Implement of_node_to_nid as weak function to remove the dependency on
asm/prom.h. This is in preparation to make prom.h optional.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
diff --git a/include/linux/of.h b/include/linux/of.h
index f95aee3..4d294a0 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -534,13 +534,10 @@
#define of_match_node(_matches, _node) NULL
#endif /* CONFIG_OF */
-#ifndef of_node_to_nid
-static inline int of_node_to_nid(struct device_node *np)
-{
- return numa_node_id();
-}
-
-#define of_node_to_nid of_node_to_nid
+#if defined(CONFIG_OF) && defined(CONFIG_NUMA)
+extern int of_node_to_nid(struct device_node *np);
+#else
+static inline int of_node_to_nid(struct device_node *device) { return 0; }
#endif
/**