static noinline_for_stack int scrub_chunk(struct scrub_ctx *sctx,
                                          struct btrfs_device *scrub_dev,
-                                         u64 chunk_tree, u64 chunk_objectid,
                                          u64 chunk_offset, u64 length,
                                          u64 dev_offset, int is_dev_replace)
 {
        struct btrfs_root *root = sctx->dev_root;
        struct btrfs_fs_info *fs_info = root->fs_info;
        u64 length;
-       u64 chunk_tree;
-       u64 chunk_objectid;
        u64 chunk_offset;
        int ret = 0;
        int slot;
                if (found_key.offset + length <= start)
                        goto skip;
 
-               chunk_tree = btrfs_dev_extent_chunk_tree(l, dev_extent);
-               chunk_objectid = btrfs_dev_extent_chunk_objectid(l, dev_extent);
                chunk_offset = btrfs_dev_extent_chunk_offset(l, dev_extent);
 
                /*
                dev_replace->cursor_right = found_key.offset + length;
                dev_replace->cursor_left = found_key.offset;
                dev_replace->item_needs_writeback = 1;
-               ret = scrub_chunk(sctx, scrub_dev, chunk_tree, chunk_objectid,
-                                 chunk_offset, length, found_key.offset,
-                                 is_dev_replace);
+               ret = scrub_chunk(sctx, scrub_dev, chunk_offset, length,
+                                 found_key.offset, is_dev_replace);
 
                /*
                 * flush, submit all pending read and write bios, afterwards