@@ -881,6 +881,7 @@ static __device__ __forceinline__ uint8_t ggml_cuda_fp32_to_ue4m3(float x) {
     const __nv_fp8_e4m3 xf(x);
     return xf.__x;
 #else
+     GGML_UNUSED(x);
      NO_DEVICE_CODE; // Used only for NVFP4 Scales for Activations, only for Blackwell
 #endif // defined(BLACKWELL_MMA_AVAILABLE)
 }
@@ -1448,10 +1449,10 @@ struct ggml_backend_cuda_context {
     std::string name;
     cudaEvent_t copy_event = nullptr;
 
-    cudaStream_t streams[GGML_CUDA_MAX_DEVICES][GGML_CUDA_MAX_STREAMS] = { { nullptr } };
-    cublasHandle_t cublas_handles[GGML_CUDA_MAX_DEVICES][GGML_CUDA_MAX_STREAMS] = {nullptr};
-    void * cublas_workspaces[GGML_CUDA_MAX_DEVICES][GGML_CUDA_MAX_STREAMS] = {nullptr};
-    size_t cublas_workspace_sizes[GGML_CUDA_MAX_DEVICES] = {0};
+    cudaStream_t streams[GGML_CUDA_MAX_DEVICES][GGML_CUDA_MAX_STREAMS] = {};
+    cublasHandle_t cublas_handles[GGML_CUDA_MAX_DEVICES][GGML_CUDA_MAX_STREAMS] = {};
+    void * cublas_workspaces[GGML_CUDA_MAX_DEVICES][GGML_CUDA_MAX_STREAMS] = {};
+    size_t cublas_workspace_sizes[GGML_CUDA_MAX_DEVICES] = {};
 
     int curr_stream_no = 0;