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>

drivers/char/drm/drm_fops.c

@@ -37,6 +37,8 @@
 #include "drmP.h"
 #include <linux/poll.h>
 
+static int drm_open_helper(struct inode *inode, struct file *filp, drm_device_t *dev);
+
 static int drm_setup( drm_device_t *dev )
 {
 	int i;
@@ -341,7 +343,7 @@ EXPORT_SYMBOL(drm_release);
  * Creates and initializes a drm_file structure for the file private data in \p
  * filp and add it into the double linked list in \p dev.
  */
-int drm_open_helper(struct inode *inode, struct file *filp, drm_device_t *dev)
+static int drm_open_helper(struct inode *inode, struct file *filp, drm_device_t *dev)
 {
 	int	     minor = iminor(inode);
 	drm_file_t   *priv;
@@ -443,9 +445,3 @@ unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
 }
 EXPORT_SYMBOL(drm_poll);
 
-
-/** No-op. */
-ssize_t drm_read(struct file *filp, char __user *buf, size_t count, loff_t *off)
-{
-	return 0;
-}