diff --git a/build.rs b/build.rs
index c1fca518a..43f418495 100644
--- a/build.rs
+++ b/build.rs
@@ -281,7 +281,7 @@ fn run_cmake_command(conf: &Config, build_dir: &std::path::Path) {
     run(
         make_cmd
             .arg(format!("-j{}", conf.build_threads))
-            .arg("install".to_string()),
+            .arg("install"),
         "make",
     );
 }
diff --git a/opencl-interop/src/lib.rs b/opencl-interop/src/lib.rs
index b8676f09f..d841a3481 100644
--- a/opencl-interop/src/lib.rs
+++ b/opencl-interop/src/lib.rs
@@ -88,35 +88,27 @@ pub fn get_device_id() -> cl_device_id {
 }
 
 /// Set the cl_device_id as the active ArrayFire OpenCL device
-pub fn set_device_id(dev_id: cl_device_id) {
-    unsafe {
-        let err_val = afcl_set_device_id(dev_id);
-        handle_error_general(AfError::from(err_val));
-    }
+pub unsafe fn set_device_id(dev_id: cl_device_id) {
+    let err_val = afcl_set_device_id(dev_id);
+    handle_error_general(AfError::from(err_val));
 }
 
 /// Push user provided device, context and queue tuple to ArrayFire device mamanger
-pub fn add_device_context(dev_id: cl_device_id, ctx: cl_context, queue: cl_command_queue) {
-    unsafe {
-        let err_val = afcl_add_device_context(dev_id, ctx, queue);
-        handle_error_general(AfError::from(err_val));
-    }
+pub unsafe fn add_device_context(dev_id: cl_device_id, ctx: cl_context, queue: cl_command_queue) {
+    let err_val = afcl_add_device_context(dev_id, ctx, queue);
+    handle_error_general(AfError::from(err_val));
 }
 
 /// Set the device identified by device & context pair as the active device for ArrayFire
-pub fn set_device_context(dev_id: cl_device_id, ctx: cl_context) {
-    unsafe {
-        let err_val = afcl_set_device_context(dev_id, ctx);
-        handle_error_general(AfError::from(err_val));
-    }
+pub unsafe fn set_device_context(dev_id: cl_device_id, ctx: cl_context) {
+    let err_val = afcl_set_device_context(dev_id, ctx);
+    handle_error_general(AfError::from(err_val));
 }
 
 /// Remove the user provided device, context pair from ArrayFire device mamanger
-pub fn delete_device_context(dev_id: cl_device_id, ctx: cl_context) {
-    unsafe {
-        let err_val = afcl_delete_device_context(dev_id, ctx);
-        handle_error_general(AfError::from(err_val));
-    }
+pub unsafe fn delete_device_context(dev_id: cl_device_id, ctx: cl_context) {
+    let err_val = afcl_delete_device_context(dev_id, ctx);
+    handle_error_general(AfError::from(err_val));
 }
 
 ///// Fetch Active ArrayFire device's type i.e. CPU/GPU/Accelerator etc.
diff --git a/src/ml/mod.rs b/src/ml/mod.rs
index e448e023f..baa2688a0 100644
--- a/src/ml/mod.rs
+++ b/src/ml/mod.rs
@@ -76,11 +76,11 @@ where
             &mut temp as *mut af_array,
             signal.get(),
             filter.get(),
-            4,
+            2,
             strides.get().as_ptr() as *const dim_t,
-            4,
+            2,
             padding.get().as_ptr() as *const dim_t,
-            4,
+            2,
             dilation.get().as_ptr() as *const dim_t,
         );
         HANDLE_ERROR(AfError::from(err_val));
@@ -126,11 +126,11 @@ where
             original_signal.get(),
             original_filter.get(),
             convolved_output.get(),
-            4,
+            2,
             strides.get().as_ptr() as *const dim_t,
-            4,
+            2,
             padding.get().as_ptr() as *const dim_t,
-            4,
+            2,
             dilation.get().as_ptr() as *const dim_t,
             grad_type as c_uint,
         );