drm_framebuffer_free
void drm_framebuffer_free(struct kref *kref);
EXPORT_SYMBOL_FOR_TESTS_ONLY(drm_framebuffer_free);
false, drm_framebuffer_free);
drm_framebuffer_free(&fb->base.refcount);
KUNIT_EXPECT_PTR_EQ(test, fb1.base.free_cb, &drm_framebuffer_free);
drm_framebuffer_free(&fb.base.refcount);