drm: remove drm_flush

drm_flush is no longer needed remove.

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

drivers/char/drm/drmP.h

···
 				/* Device support (drm_fops.h) */
 extern int drm_open(struct inode *inode, struct file *filp);
 extern int drm_stub_open(struct inode *inode, struct file *filp);
-extern int drm_flush(struct file *filp);
 extern int drm_fasync(int fd, struct file *filp, int on);
 extern int drm_release(struct inode *inode, struct file *filp);
 

drivers/char/drm/drm_fops.c

···
 }
 
 /** No-op. */
-int drm_flush(struct file *filp)
-{
-	drm_file_t *priv = filp->private_data;
-	drm_device_t *dev = priv->head->dev;
-
-	DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
-		  current->pid, (long)old_encode_dev(priv->head->device),
-		  dev->open_count);
-	return 0;
-}
-
-EXPORT_SYMBOL(drm_flush);
-
-/** No-op. */
 int drm_fasync(int fd, struct file *filp, int on)
 {
 	drm_file_t *priv = filp->private_data;

drivers/char/drm/i810_dma.c

···
 
 static struct file_operations i810_buffer_fops = {
 	.open = drm_open,
-	.flush = drm_flush,
 	.release = drm_release,
 	.ioctl = drm_ioctl,
 	.mmap = i810_mmap_buffers,

drivers/char/drm/i830_dma.c

···
 
 static struct file_operations i830_buffer_fops = {
 	.open = drm_open,
-	.flush = drm_flush,
 	.release = drm_release,
 	.ioctl = drm_ioctl,
 	.mmap = i830_mmap_buffers,