of/flattree: forward declare struct device_node in of_fdt.h
This patch forward declares struct device_node to fix a compile error
when of_fdt.h is included, but of.h is not. Alternately, including
linux/of.h could have been added to of_fdt.h, but that pulls in a lot
of unnecessary declarations when only working with the flattened
form.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index ee96091..0ef22a1 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -59,6 +59,8 @@
#if defined(CONFIG_OF_FLATTREE)
+struct device_node;
+
/* For scanning an arbitrary device-tree at any time */
extern char *of_fdt_get_string(struct boot_param_header *blob, u32 offset);
extern void *of_fdt_get_property(struct boot_param_header *blob,