diff --git a/projects/eudsl-python-extras/mlir/extras/dialects/linalg.py b/projects/eudsl-python-extras/mlir/extras/dialects/linalg.py
index f2672694..51ce527e 100644
--- a/projects/eudsl-python-extras/mlir/extras/dialects/linalg.py
+++ b/projects/eudsl-python-extras/mlir/extras/dialects/linalg.py
@@ -5,13 +5,9 @@
 from ... import ir
 from ...dialects import linalg
 from ...dialects._ods_common import (
-    _dispatch_mixed_values,
     _cext,
     get_op_results_or_values,
-    get_default_loc_context,
     get_op_result_or_op_results,
-    get_default_loc_context,
-    segmented_accessor,
 )
 
 # noinspection PyUnresolvedReferences
diff --git a/projects/eudsl-python-extras/mlir/extras/util.py b/projects/eudsl-python-extras/mlir/extras/util.py
index 2e65e847..10ec92ef 100644
--- a/projects/eudsl-python-extras/mlir/extras/util.py
+++ b/projects/eudsl-python-extras/mlir/extras/util.py
@@ -149,9 +149,6 @@ def find(op: Operation):
     np.float64: T.f64,
 }
 
-_mlir_type_ctor_to_np_dtype = lambda: {
-    v: k for k, v in _np_dtype_to_mlir_type_ctor.items()
-}
 
 
 def np_dtype_to_mlir_type(np_dtype):