Fix warning on platforms without disk util support
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/diskutil.h b/diskutil.h
index ddd6471..6ae4aee 100644
--- a/diskutil.h
+++ b/diskutil.h
@@ -109,7 +109,10 @@
extern void setup_disk_util(void);
extern void disk_util_prune_entries(void);
#else
-#define print_disk_util(dus, agg, terse)
+static inline void print_disk_util(struct disk_util_stat *du,
+ struct disk_util_agg *agg, int terse)
+{
+}
#define show_disk_util(terse, parent)
#define disk_util_prune_entries()
#define init_disk_util(td)