diff --git a/wgpu-hal/src/dx12/device.rs b/wgpu-hal/src/dx12/device.rs
index a91787df35..bc64b8c5db 100644
--- a/wgpu-hal/src/dx12/device.rs
+++ b/wgpu-hal/src/dx12/device.rs
@@ -414,10 +414,8 @@ impl crate::Device for super::Device {
                 .next_multiple_of(Direct3D12::D3D12_CONSTANT_BUFFER_DATA_PLACEMENT_ALIGNMENT.into())
         }
 
-        let raw_desc = conv::map_buffer_descriptor(&desc);
-
         let (resource, allocation) =
-            suballocation::DeviceAllocationContext::from(self).create_buffer(&desc, raw_desc)?;
+            suballocation::DeviceAllocationContext::from(self).create_buffer(&desc)?;
 
         if let Some(label) = desc.label {
             unsafe { resource.SetName(&windows::core::HSTRING::from(label)) }
@@ -1542,10 +1540,8 @@ impl crate::Device for super::Device {
                 memory_flags: crate::MemoryFlags::empty(),
             };
 
-            let raw_buffer_desc = conv::map_buffer_descriptor(&buffer_desc);
-
-            let (buffer, allocation) = suballocation::DeviceAllocationContext::from(self)
-                .create_buffer(&buffer_desc, raw_buffer_desc)?;
+            let (buffer, allocation) =
+                suballocation::DeviceAllocationContext::from(self).create_buffer(&buffer_desc)?;
 
             unsafe { buffer.SetName(&windows::core::HSTRING::from(&*label)) }
                 .into_device_result("SetName")?;
diff --git a/wgpu-hal/src/dx12/suballocation.rs b/wgpu-hal/src/dx12/suballocation.rs
index d15799b594..43fd60a622 100644
--- a/wgpu-hal/src/dx12/suballocation.rs
+++ b/wgpu-hal/src/dx12/suballocation.rs
@@ -5,7 +5,7 @@ use gpu_allocator::{
 use parking_lot::Mutex;
 use windows::Win32::Graphics::Direct3D12;
 
-use crate::auxil::dxgi::result::HResult as _;
+use crate::{auxil::dxgi::result::HResult as _, dx12::conv};
 
 #[derive(Debug)]
 pub(crate) enum AllocationType {
@@ -96,11 +96,12 @@ impl<'a> DeviceAllocationContext<'a> {
     pub(crate) fn create_buffer(
         &self,
         desc: &crate::BufferDescriptor,
-        raw_desc: Direct3D12::D3D12_RESOURCE_DESC,
     ) -> Result<(Direct3D12::ID3D12Resource, Allocation), crate::DeviceError> {
         let is_cpu_read = desc.usage.contains(wgt::BufferUses::MAP_READ);
         let is_cpu_write = desc.usage.contains(wgt::BufferUses::MAP_WRITE);
 
+        let raw_desc = conv::map_buffer_descriptor(desc);
+
         // Workaround for Intel Xe drivers
         if !self.shared.private_caps.suballocation_supported {
             let resource = self.create_committed_buffer(desc, raw_desc)?;