extern int do_blk_trace_setup(struct request_queue *q, char *name,
dev_t dev, struct block_device *bdev,
struct blk_user_trace_setup *buts);
-extern __attribute__((format(printf, 2, 3)))
+extern __printf(2, 3)
void __trace_note_message(struct blk_trace *, const char *fmt, ...);
/**