--- zzzz-none-000/linux-4.9.231/drivers/mtd/ubi/eba.c	2020-07-22 07:10:54.000000000 +0000
+++ falcon-5590-729/linux-4.9.231/drivers/mtd/ubi/eba.c	2022-03-30 12:03:34.000000000 +0000
@@ -722,6 +722,7 @@
 	leb_read_unlock(ubi, vol_id, lnum);
 	return err;
 }
+EXPORT_SYMBOL_GPL(ubi_eba_read_leb);
 
 /**
  * ubi_eba_read_leb_sg - read data into a scatter gather list.