diff --git a/modules/dnn/src/cuda/detection_output.cu b/modules/dnn/src/cuda/detection_output.cu
index 4d54540b0507f2208cacc7394e25257b95d05c59..9e38f0cf42d38fef7216b00ccde208c59fce88a5 100644
--- a/modules/dnn/src/cuda/detection_output.cu
+++ b/modules/dnn/src/cuda/detection_output.cu
@@ -673,18 +673,22 @@ void launch_decode_boxes_kernel(const Stream& stream, Span<T> decoded_bboxes, Vi
     launch_kernel(kernel, policy, decoded_bboxes, locations, priors, transpose_location, normalized_bbox, num_loc_classes, background_class_id, clip_width, clip_height);
 }
 
-template <class T, std::size_t current, class ...Args> static
+template <class T, unsigned int current, class ...Args> static
 typename std::enable_if<current == 0, void>
 ::type dispatch_decode_bboxes(int selector, Args&& ...args) {
     if(selector == 0)
         launch_decode_boxes_kernel<T, 0, 0, 0, 0>(std::forward<Args>(args)...);
 }
 
-template <class T, std::size_t current, class ...Args> static
+template <class T, unsigned int current, class ...Args> static
 typename std::enable_if<current != 0, void>
 ::type dispatch_decode_bboxes(int selector, Args&& ...args) {
     if(selector == current)
-        launch_decode_boxes_kernel<T, current & 8, current & 4, current & 2, current & 1>(std::forward<Args>(args)...);
+        launch_decode_boxes_kernel<T,
+                static_cast<bool>(current & 8),
+                static_cast<bool>(current & 4),
+                static_cast<bool>(current & 2),
+                static_cast<bool>(current & 1)>(std::forward<Args>(args)...);
     else
         dispatch_decode_bboxes<T, current - 1, Args...>(selector, std::forward<Args>(args)...);
 }
diff --git a/modules/dnn/test/test_onnx_importer.cpp b/modules/dnn/test/test_onnx_importer.cpp
index 22a45286d6ae4951d17031de37d82bb35701863e..d7f68c7606f15d2406db33942e66e85f5d952e24 100644
--- a/modules/dnn/test/test_onnx_importer.cpp
+++ b/modules/dnn/test/test_onnx_importer.cpp
@@ -120,6 +120,9 @@ TEST_P(Test_ONNX_layers, Convolution_variable_weight)
          backend == DNN_BACKEND_INFERENCE_ENGINE_NN_BUILDER_2019) && target == DNN_TARGET_MYRIAD)
         applyTestTag(CV_TEST_TAG_DNN_SKIP_IE_MYRIAD, CV_TEST_TAG_DNN_SKIP_IE_NN_BUILDER, CV_TEST_TAG_DNN_SKIP_IE_NGRAPH);
 
+    if (backend == DNN_BACKEND_CUDA)
+        applyTestTag(CV_TEST_TAG_DNN_SKIP_CUDA); // not supported
+
     String basename = "conv_variable_w";
     Net net = readNetFromONNX(_tf("models/" + basename + ".onnx"));
     ASSERT_FALSE(net.empty());
@@ -147,6 +150,9 @@ TEST_P(Test_ONNX_layers, Convolution_variable_weight_bias)
          backend == DNN_BACKEND_INFERENCE_ENGINE_NN_BUILDER_2019) && target == DNN_TARGET_MYRIAD)
         applyTestTag(CV_TEST_TAG_DNN_SKIP_IE_MYRIAD, CV_TEST_TAG_DNN_SKIP_IE_NN_BUILDER, CV_TEST_TAG_DNN_SKIP_IE_NGRAPH);
 
+    if (backend == DNN_BACKEND_CUDA)
+        applyTestTag(CV_TEST_TAG_DNN_SKIP_CUDA); // not supported
+
     String basename = "conv_variable_wb";
     Net net = readNetFromONNX(_tf("models/" + basename + ".onnx"));
     ASSERT_FALSE(net.empty());