--- zzzz-none-000/linux-4.1.52/init/do_mounts.c	2018-05-28 02:26:45.000000000 +0000
+++ bcm63-7530ax-731/linux-4.1.52/init/do_mounts.c	2022-03-02 11:37:13.000000000 +0000
@@ -290,7 +290,9 @@
 }
 EXPORT_SYMBOL_GPL(name_to_dev_t);
 
-static int __init root_dev_setup(char *line)
+/* this isn't static anymore, as we need to have this function available for
+ * mtdram1= param parsing in our mtd code -PHU*/
+int __init root_dev_setup(char *line)
 {
 	strlcpy(saved_root_name, line, sizeof(saved_root_name));
 	return 1;