drm: possible cleanups

This patch contains the following possible cleanups:
- make the following needlessly global function static:
- drm_bufs.c: drm_addbufs_fb()
- remove the following unused EXPORT_SYMBOL's:
- drm_agpsupport.c: drm_agp_bind_memory
- drm_bufs.c: drm_rmmap_locked
- drm_bufs.c: drm_rmmap
- drm_stub.c: drm_get_dev

Signed-off-by: Adrian Bunk <[e-mail]>
Signed-off-by: Dave Airlie <[e-mail]>

drivers/char/drm/drmP.h

···
 				/* Buffer management support (drm_bufs.h) */
 extern int drm_addbufs_agp(drm_device_t * dev, drm_buf_desc_t * request);
 extern int drm_addbufs_pci(drm_device_t * dev, drm_buf_desc_t * request);
-extern int drm_addbufs_fb(drm_device_t *dev, drm_buf_desc_t *request);
 extern int drm_addmap(drm_device_t * dev, unsigned int offset,
 		      unsigned int size, drm_map_type_t type,
 		      drm_map_flags_t flags, drm_local_map_t ** map_ptr);

drivers/char/drm/drm_agpsupport.c

···
 	return agp_bind_memory(handle, start);
 }
 
-EXPORT_SYMBOL(drm_agp_bind_memory);
-
 /** Calls agp_unbind_memory() */
 int drm_agp_unbind_memory(DRM_AGP_MEM * handle)
 {

drivers/char/drm/drm_bufs.c

···
 
 	return 0;
 }
-EXPORT_SYMBOL(drm_rmmap_locked);
 
 int drm_rmmap(drm_device_t *dev, drm_local_map_t *map)
 {
···
 
 	return ret;
 }
-EXPORT_SYMBOL(drm_rmmap);
 
 /* The rmmap ioctl appears to be unnecessary.  All mappings are torn down on
  * the last close of the device, and this is necessary for cleanup when things
···
 	return 0;
 }
 
-int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
+static int drm_addbufs_fb(drm_device_t * dev, drm_buf_desc_t * request)
 {
 	drm_device_dma_t *dma = dev->dma;
 	drm_buf_entry_t *entry;
···
 	atomic_dec(&dev->buf_alloc);
 	return 0;
 }
-EXPORT_SYMBOL(drm_addbufs_fb);
 
 
 /**

drivers/char/drm/drm_stub.c

···
 	return ret;
 }
 
-EXPORT_SYMBOL(drm_get_dev);
-
 /**
  * Put a device minor number.
  *