--- zzzz-none-000/linux-3.10.107/drivers/mtd/ubi/debug.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/mtd/ubi/debug.h	2021-02-04 17:41:59.000000000 +0000
@@ -127,4 +127,16 @@
 {
 	return ubi->dbg.chk_gen;
 }
+
+static inline int ubi_dbg_chk_fastmap(const struct ubi_device *ubi)
+{
+	return ubi->dbg.chk_fastmap;
+}
+
+static inline void ubi_enable_dbg_chk_fastmap(struct ubi_device *ubi)
+{
+	ubi->dbg.chk_fastmap = 1;
+}
+
+int ubi_dbg_power_cut(struct ubi_device *ubi, int caller);
 #endif /* !__UBI_DEBUG_H__ */