diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9241626..4cfe98e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,8 +6,7 @@ OPTION(TIM_VX_ENABLE_LAYOUT_INFER   "Enable layout inference support"   ON)
 
 set(CMAKE_CXX_STANDARD 14)
 set(CMAKE_POSITION_INDEPENDENT_CODE ON)
-set(CMAKE_C_FLAGS "-Wall -Wextra -Wno-unused-parameter -Wno-sign-compare -Werror -Wno-enum-conversion")
-set(CMAKE_CXX_FLAGS "-Wall -Wextra -Wno-unused-parameter -Wno-sign-compare -Werror")
+set(CMAKE_CXX_FLAGS "-Wall -Wextra -Werror")
 
 if(NOT DEFINED CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
   set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "..." FORCE)
diff --git a/include/tim/vx/tensor.h b/include/tim/vx/tensor.h
index 88f3dd6..a2defaf 100644
--- a/include/tim/vx/tensor.h
+++ b/include/tim/vx/tensor.h
@@ -74,7 +74,7 @@ class Quantization {
 
  protected:
   QuantType type_{QuantType::NONE};
-  int32_t channel_dim_;
+  int32_t channel_dim_{-1};
   std::vector<float> scales_;
   std::vector<int32_t> zero_points_;
 };
diff --git a/samples/lenet/lenet_asymu8.cc b/samples/lenet/lenet_asymu8.cc
index 0edf539..77cf3fe 100644
--- a/samples/lenet/lenet_asymu8.cc
+++ b/samples/lenet/lenet_asymu8.cc
@@ -113,6 +113,7 @@ static void printTopN(const T* prob, int outputCount, int topNum) {
 }
 
 int main(int argc, char** argv) {
+  (void) argc, (void) argv;
   auto context = tim::vx::Context::Create();
   auto graph = context->CreateGraph();
 
diff --git a/src/tim/transform/layout_inference.cc b/src/tim/transform/layout_inference.cc
index cc597b4..e936ced 100644
--- a/src/tim/transform/layout_inference.cc
+++ b/src/tim/transform/layout_inference.cc
@@ -79,6 +79,8 @@ const std::shared_ptr<IPermuteVector> LayoutInferContext::GetPermuteVector(
     VSILOGE("Tensor PermuteVecor has not beed setted.");
     assert(false);
   }
+
+  return nullptr;
 }
 
 void LayoutInferContext::MarkVisited(const std::shared_ptr<vx::Operation>& op) {
@@ -125,6 +127,8 @@ std::shared_ptr<vx::Tensor> LayoutInferContext::GetMapedTensor(
     VSILOGE("Tensor has not beed inserted in tensor map.");
     assert(false);
   }
+
+  return nullptr;
 }
 
 void LayoutInferContext::UpdateGraphInputMap(const std::shared_ptr<vx::Tensor>& i_src,
diff --git a/src/tim/transform/ops/op_layout_inference.cc b/src/tim/transform/ops/op_layout_inference.cc
index 17d5957..d9b1ef7 100644
--- a/src/tim/transform/ops/op_layout_inference.cc
+++ b/src/tim/transform/ops/op_layout_inference.cc
@@ -247,7 +247,10 @@ std::shared_ptr<vx::Tensor> OpLayoutInfer::PermuteConstTensor(
     const std::shared_ptr<IPermuteVector>& pv) {
   std::vector<uint8_t> data;
   bool is_ok = TransposeConstTensorData(input, pv, data);
-  assert(is_ok);
+  if (!is_ok) {
+    assert(is_ok);
+    return nullptr;
+  }
   auto src_shape = input->GetShape();
   auto dst_spec = input->GetSpec();
   vx::ShapeType dst_shape;
diff --git a/src/tim/vx/internal/CMakeLists.txt b/src/tim/vx/internal/CMakeLists.txt
index 4d30f7b..f09bb9a 100644
--- a/src/tim/vx/internal/CMakeLists.txt
+++ b/src/tim/vx/internal/CMakeLists.txt
@@ -3,6 +3,7 @@ message("src/tim/vx/internal")
 set(lib_name "tim_internal")
 set(OVXLIB_API_ATTR "__attribute__\(\(visibility\(\"default\"\)\)\)")
 add_definitions(-DOVXLIB_API=${OVXLIB_API_ATTR})
+add_compile_options(-Wno-strict-aliasing -Wno-unused-but-set-variable -Wno-maybe-uninitialized)
 
 aux_source_directory(src INTERNAL_SRC)
 aux_source_directory(src/kernel INTERNAL_KERNEL)
@@ -41,4 +42,4 @@ include_directories(include)
 include_directories(${OVXDRV_INCLUDE_DIRS})
 
 add_library(${lib_name} ${SRC})
-target_link_libraries(${lib_name} PRIVATE ${OVXDRV_LIBRARIES})
\ No newline at end of file
+target_link_libraries(${lib_name} PRIVATE ${OVXDRV_LIBRARIES})
diff --git a/src/tim/vx/tensor.cc b/src/tim/vx/tensor.cc
index 3fbafc7..4fe6063 100644
--- a/src/tim/vx/tensor.cc
+++ b/src/tim/vx/tensor.cc
@@ -88,6 +88,7 @@ TensorImpl::TensorImpl(Graph* graph, const TensorSpec& spec, const void* data)
 TensorImpl::~TensorImpl() {}
 
 bool TensorImpl::CopyDataToTensor(const void* data, uint32_t size_in_bytes) {
+  (void)size_in_bytes;
   if (!IsWriteable()) {
     return false;
   }
diff --git a/src/tim/vx/tensor_private.h b/src/tim/vx/tensor_private.h
index c64919a..602a69a 100644
--- a/src/tim/vx/tensor_private.h
+++ b/src/tim/vx/tensor_private.h
@@ -60,7 +60,7 @@ class TensorImpl : public Tensor {
 
 class TensorPlaceholder : public Tensor {
  public:
-  TensorPlaceholder(Graph* graph) : id_(VSI_NN_TENSOR_ID_NA) {}
+  TensorPlaceholder(Graph* graph) : id_(VSI_NN_TENSOR_ID_NA) {(void)(graph);}
   ~TensorPlaceholder(){};
 
   const ShapeType& GetShape() { return spec_.shape_; }
@@ -68,8 +68,14 @@ class TensorPlaceholder : public Tensor {
   const Quantization& GetQuantization() { return spec_.quantization_; }
   const TensorSpec& GetSpec() { return spec_; }
   uint32_t GetId() { return id_; };
-  bool CopyDataToTensor(const void* data, uint32_t size = 0) { return false; }
-  bool CopyDataFromTensor(void* data) { return false; }
+  bool CopyDataToTensor(const void* data, uint32_t size = 0) {
+    (void)data, void(size);
+    return false;
+  }
+  bool CopyDataFromTensor(void* data) {
+    (void)data;
+    return false;
+  }
   bool IsPlaceHolder() { return true; }
   bool IsConstTensor() {
     return spec_.attr_ == tim::vx::TensorAttribute::CONSTANT;