drm: misc cleanup

This patch contains the following cleanups:
- make needlessly global functions static
- remove the following unused global functions:
 - drm_fops.c: drm_read
 - i915_dma.c: i915_do_cleanup_pageflip

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/drm_bufs.c b/drivers/char/drm/drm_bufs.c
index 3407380..4c6191d 100644
--- a/drivers/char/drm/drm_bufs.c
+++ b/drivers/char/drm/drm_bufs.c
@@ -356,8 +356,8 @@
  * reallocates the buffer list of the same size order to accommodate the new
  * buffers.
  */
-int drm_addbufs_agp( struct inode *inode, struct file *filp,
-		      unsigned int cmd, unsigned long arg )
+static int drm_addbufs_agp( struct inode *inode, struct file *filp,
+			    unsigned int cmd, unsigned long arg )
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
@@ -521,8 +521,8 @@
 }
 #endif /* __OS_HAS_AGP */
 
-int drm_addbufs_pci( struct inode *inode, struct file *filp,
-		      unsigned int cmd, unsigned long arg )
+static int drm_addbufs_pci( struct inode *inode, struct file *filp,
+			    unsigned int cmd, unsigned long arg )
 {
    	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;
@@ -751,8 +751,8 @@
 
 }
 
-int drm_addbufs_sg( struct inode *inode, struct file *filp,
-                     unsigned int cmd, unsigned long arg )
+static int drm_addbufs_sg( struct inode *inode, struct file *filp,
+			   unsigned int cmd, unsigned long arg )
 {
 	drm_file_t *priv = filp->private_data;
 	drm_device_t *dev = priv->head->dev;