int trace_define_field(struct ftrace_event_call *call, char *type,
char *name, int offset, int size);
extern void filter_free_pred(struct filter_pred *pred);
-extern int filter_print_preds(struct filter_pred **preds, char *buf);
+extern void filter_print_preds(struct filter_pred **preds,
+ struct trace_seq *s);
extern int filter_parse(char **pbuf, struct filter_pred *pred);
extern int filter_add_pred(struct ftrace_event_call *call,
struct filter_pred *pred);