--- zzzz-none-000/linux-2.6.28.10/include/linux/backing-dev.h	2009-05-02 18:54:43.000000000 +0000
+++ puma5-6360-529/linux-2.6.28.10/include/linux/backing-dev.h	2010-04-16 13:30:28.000000000 +0000
@@ -140,7 +140,7 @@
 /*
  * maximal error of a stat counter.
  */
-static inline unsigned long bdi_stat_error(struct backing_dev_info *bdi)
+static inline unsigned long bdi_stat_error(struct backing_dev_info *bdi __attribute__ ((unused)))
 {
 #ifdef CONFIG_SMP
 	return nr_cpu_ids * BDI_STAT_BATCH;