# define blk_trace_startstop(q, start) (-ENOTTY)
# define blk_trace_remove(q) (-ENOTTY)
# define blk_add_trace_msg(q, fmt, ...) do { } while (0)
-# define blk_trace_remove_sysfs(struct device *dev) do { } while (0)
+# define blk_trace_remove_sysfs(dev) do { } while (0)
static inline int blk_trace_init_sysfs(struct device *dev)
{
return 0;