graphics: Pass CursorPlane by shared ref to handle_cursor

graphics/driver-graphics/src/lib.rs

@@ -22,7 +22,7 @@ pub trait GraphicsAdapter {
     fn supports_hw_cursor(&self) -> bool;
     fn create_cursor_framebuffer(&mut self) -> Self::Cursor;
     fn map_cursor_framebuffer(&mut self, cursor: &Self::Cursor) -> *mut u8;
-    fn handle_cursor(&mut self, cursor: &mut CursorPlane<Self::Cursor>, dirty_fb: bool);
+    fn handle_cursor(&mut self, cursor: &CursorPlane<Self::Cursor>, dirty_fb: bool);
 }
 
 pub trait Framebuffer {

graphics/vesad/src/scheme.rs

@@ -55,7 +55,7 @@ impl GraphicsAdapter for FbAdapter {
         unimplemented!("Vesad does not support this function");
     }
 
-    fn handle_cursor(&mut self, _cursor: &mut CursorPlane<VesadCursor>, _dirty_fb: bool) {
+    fn handle_cursor(&mut self, _cursor: &CursorPlane<VesadCursor>, _dirty_fb: bool) {
         unimplemented!("Vesad does not support this function");
     }
 }

graphics/virtio-gpud/src/scheme.rs

@@ -331,7 +331,7 @@ impl GraphicsAdapter for VirtGpuAdapter<'_> {
         cursor.sgl.as_ptr()
     }
 
-    fn handle_cursor(&mut self, cursor: &mut CursorPlane<VirtGpuCursor>, dirty_fb: bool) {
+    fn handle_cursor(&mut self, cursor: &CursorPlane<VirtGpuCursor>, dirty_fb: bool) {
         if dirty_fb {
             self.update_cursor(
                 &cursor.framebuffer,