The dev_private member of drm_device is deprecated and its use should be avoided. Stop using it by embedding the drm_device onto a mock struct. The new mock struct allows to share variables and even further mocks over the tests in a cleaner way than using dev_private void pointer. Also start using drm_kunit_helper_alloc_drm_device() for allocating the drm_device mock. Signed-off-by: Carlos Eduardo Gallo Filho <gcarlos@disroot.org> Acked-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240911001559.28284-2-gcarlos@disroot.org Signed-off-by: Maxime Ripard <mripard@kernel.org>