diff --git a/dnn/src/arm_common/conv_bias/f16/direct_nchw88_algo.cpp b/dnn/src/arm_common/conv_bias/f16/direct_nchw88_algo.cpp
index ce256662cce8ae5aeb9c5b5cef79bfe4e22bb248..df72f4be768c161e92a986598f210a31bed3b571 100644
--- a/dnn/src/arm_common/conv_bias/f16/direct_nchw88_algo.cpp
+++ b/dnn/src/arm_common/conv_bias/f16/direct_nchw88_algo.cpp
@@ -15,6 +15,7 @@ using conv_fun = std::function<void(
         const WorkspaceBundle& bundle, const ConvBiasImpl::NCBKernParam& kern_param,
         const ConvBiasImpl::NCBKernIndex& ncb_index, const CpuNDRange& workspace_ids)>;
 MIDOUT_DECL(megdnn_arm_common_conv_bias_fp16_nchw88)
+MIDOUT_DECL(megdnn_arm_common_conv_bias_fp16_nchw88_stride1)
 namespace {
 
 static WorkspaceBundle get_bundle(const ConvBiasImpl::NCBKernSizeParam& param) {
diff --git a/dnn/src/common/rounding_converter.cuh b/dnn/src/common/rounding_converter.cuh
index 9b50eca9b380208f7a9ff033353e9ee86b727cdc..d605fae2da9f775aacc760ba5067ee038809288e 100644
--- a/dnn/src/common/rounding_converter.cuh
+++ b/dnn/src/common/rounding_converter.cuh
@@ -14,7 +14,7 @@ struct RoundingConverter<float> {
     }
 };
 
-#ifndef MEGDNN_DISABLE_FLOAT16
+#if !MEGDNN_DISABLE_FLOAT16
 
 template <>
 struct RoundingConverter<half_float::half> {
@@ -32,7 +32,7 @@ struct RoundingConverter<half_bfloat16::bfloat16> {
     }
 };
 
-#endif  // #ifdef MEGDNN_DISABLE_FLOAT16
+#endif  // #if !MEGDNN_DISABLE_FLOAT16
 
 template <>
 struct RoundingConverter<int8_t> {
diff --git a/dnn/src/cuda/warp_perspective/forward.cpp b/dnn/src/cuda/warp_perspective/forward.cpp
index 03af174517506a4277e59d9b14fe13217513881d..37f5c44e41a65f3e9d5a07a0106094179b59c629 100644
--- a/dnn/src/cuda/warp_perspective/forward.cpp
+++ b/dnn/src/cuda/warp_perspective/forward.cpp
@@ -295,7 +295,7 @@ void WarpPerspectiveForwardImpl::exec(
                             m_error_tracker, stream);
                 } else if (DNN_FLOAT16_SELECT(
                                    src.layout.dtype == dtype::Float16(), false)) {
-#ifndef MEGDNN_DISABLE_FLOAT16
+#if !MEGDNN_DISABLE_FLOAT16
                     warp_perspective::forward_proxy(
                             is_nhwc, src.ptr<dt_float16>(), mat.ptr<dt_float32>(),
                             mat_idx.raw_ptr() ? mat_idx.ptr<int>() : nullptr,
@@ -563,7 +563,7 @@ void WarpPerspectiveForwardImpl::exec(
                         m_error_tracker, stream);
             } else if (DNN_FLOAT16_SELECT(
                                src.layout.dtype == dtype::Float16(), false)) {
-#ifndef MEGDNN_DISABLE_FLOAT16
+#if !MEGDNN_DISABLE_FLOAT16
                 SmallVector<size_t> workspace_sizes{sizeof(dt_float16*) * srcs.size()};
                 WorkspaceBundle workspace_cpu(nullptr, workspace_sizes);
                 auto total_workspace_size = workspace_cpu.total_size_in_bytes();
diff --git a/dnn/src/cuda/warp_perspective/forward.cu b/dnn/src/cuda/warp_perspective/forward.cu
index b2adf8869cdad489466da571942d3d82901ab4c5..13c1b5c78cb189206bffeba48dcf5ef2f86f3596 100644
--- a/dnn/src/cuda/warp_perspective/forward.cu
+++ b/dnn/src/cuda/warp_perspective/forward.cu
@@ -1924,7 +1924,7 @@ void forward_proxy_nchw64(
             cudaStream_t);
 INST(float)
 INST(uint8_t)
-#ifndef MEGDNN_DISABLE_FLOAT16
+#if !MEGDNN_DISABLE_FLOAT16
 INST(dt_float16)
 #endif
 INST(int8_t)
@@ -1936,7 +1936,7 @@ INST(int8_t)
             int, int, int, ctype, BorderMode, megcore::AsyncErrorInfo*, void*,         \
             cudaStream_t);
 INST(float)
-#ifndef MEGDNN_DISABLE_FLOAT16
+#if !MEGDNN_DISABLE_FLOAT16
 INST(dt_float16)
 #endif
 #undef INST
diff --git a/dnn/src/fallback/powc/opr_impl.cpp b/dnn/src/fallback/powc/opr_impl.cpp
index 170a466f09c904e287f23c915811921944379160..1cf062bbd9a4fcac2b92fd6ddbb43ea9f1c9a4b4 100644
--- a/dnn/src/fallback/powc/opr_impl.cpp
+++ b/dnn/src/fallback/powc/opr_impl.cpp
@@ -73,7 +73,7 @@ struct powci_general_even {
 template <size_t size>
 struct float_itype;
 
-#ifndef MEGDNN_DISABLE_FLOAT16
+#if !MEGDNN_DISABLE_FLOAT16
 template <>
 struct float_itype<2> {
     using type = uint16_t;
diff --git a/dnn/src/naive/resize/opr_impl.cpp b/dnn/src/naive/resize/opr_impl.cpp
index 661d7dc560038170c7ae84bceeaa00fd65066877..59ed5e027e8dd5484b19ce43d7709ea1796f72c3 100644
--- a/dnn/src/naive/resize/opr_impl.cpp
+++ b/dnn/src/naive/resize/opr_impl.cpp
@@ -84,7 +84,7 @@ ResizeImpl::KernParam<ctype> ResizeImpl::KernParam<ctype>::from_tensors(
 #define INST(_dtype) template struct ResizeImpl::KernParam<_dtype>;
 
 INST(dt_float32);
-#ifndef MEGDNN_DISABLE_FLOAT16
+#if !MEGDNN_DISABLE_FLOAT16
 INST(dt_float16);
 #endif
 INST(dt_int8);
diff --git a/src/opr-mm/impl/megray_helper.cpp b/src/opr-mm/impl/megray_helper.cpp
index d3591a3789af606e02e1a81750459c6b329bc170..aa8f8c10c43b976125357f158b4c4178def3a35f 100644
--- a/src/opr-mm/impl/megray_helper.cpp
+++ b/src/opr-mm/impl/megray_helper.cpp
@@ -15,7 +15,7 @@ MegRay::DType mgb::opr::get_megray_dtype(megdnn::DType dtype) {
             return MegRay::DType::MEGRAY_INT32;
         case DTypeEnum::Float32:
             return MegRay::DType::MEGRAY_FLOAT32;
-#ifndef MEGDNN_DISABLE_FLOAT16
+#if !MEGDNN_DISABLE_FLOAT16
         case DTypeEnum::Float16:
             return MegRay::DType::MEGRAY_FLOAT16;
 #endif