fix flake8 errors

mlonmcu/platform/microtvm.py

@@ -28,7 +28,7 @@
 from mlonmcu.artifact import Artifact, ArtifactFormat
 
 from mlonmcu.flow.tvm.backend.python_utils import prepare_python_environment
-from mlonmcu.flow.tvm.backend.tvmc_utils import get_data_tvmc_args
+from mlonmcu.flow.tvm.backend.tvmc_utils import get_bench_tvmc_args, get_data_tvmc_args
 
 from .platform import CompilePlatform, TargetPlatform
 from .microtvm_target import create_microtvm_target

mlonmcu/session/run.py

@@ -315,13 +315,13 @@ def add_postprocesses(self, postprocesses, append=False):
     def add_feature(self, feature):
         """Setter for a feature instance."""
         self.features = [feature]
-        self.run_features = self.process_features(features)
+        self.run_features = self.process_features(self.features)
         self.run_config = filter_config(self.run_config, "run", self.DEFAULTS, self.REQUIRED)
 
     def add_features(self, features, append=False):
         """Setter for the list of features."""
         self.features = features if not append else self.features + features
-        self.run_features = self.process_features(features)
+        self.run_features = self.process_features(self.features)
         self.run_config = filter_config(self.run_config, "run", self.DEFAULTS, self.REQUIRED)
 
     def pick_model_frontend(self, model_hints, backend=None):

mlonmcu/target/corstone300.py

@@ -23,6 +23,7 @@
 from pathlib import Path
 
 from mlonmcu.logging import get_logger
+from mlonmcu.feature.features import SUPPORTED_TVM_BACKENDS
 from .common import cli, execute
 from .target import Target
 from .metrics import Metrics
@@ -213,6 +214,7 @@ def get_backend_config(self, backend):
             if self.enable_dsp:
                 pass
                 # ret.update({"desired_layout": "NHWC,HWOI"})  # NOt yet supported by upstream TVMC
+            return ret
         return {}