--- zzzz-none-000/linux-2.6.39.4/fs/ext4/mballoc.c	2011-08-03 19:43:28.000000000 +0000
+++ puma6-arm-6490-729/linux-2.6.39.4/fs/ext4/mballoc.c	2021-11-10 13:23:10.000000000 +0000
@@ -2926,7 +2926,7 @@
 {
 	int bsbits, max;
 	ext4_lblk_t end;
-	loff_t size, orig_size, start_off;
+	loff_t size, orig_size __maybe_unused, start_off;
 	ext4_lblk_t start;
 	struct ext4_inode_info *ei = EXT4_I(ac->ac_inode);
 	struct ext4_prealloc_space *pa;