drm: remove drm_file_t, drm_device_t and drm_head_t typedefs

some drivers still todo.

Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/sis_drv.h b/drivers/char/drm/sis_drv.h
index 70d4ede..83c0ef2 100644
--- a/drivers/char/drm/sis_drv.h
+++ b/drivers/char/drm/sis_drv.h
@@ -61,9 +61,9 @@
 	unsigned long agp_offset;
 } drm_sis_private_t;
 
-extern int sis_idle(drm_device_t *dev);
-extern void sis_reclaim_buffers_locked(drm_device_t *dev, struct file *filp);
-extern void sis_lastclose(drm_device_t *dev);
+extern int sis_idle(struct drm_device *dev);
+extern void sis_reclaim_buffers_locked(struct drm_device *dev, struct file *filp);
+extern void sis_lastclose(struct drm_device *dev);
 
 extern drm_ioctl_desc_t sis_ioctls[];
 extern int sis_max_ioctl;