sched_min_delay(s);
}
-static int check_wav_exec(struct btr_node *btrn, const char *cmd, char **result)
+static int check_wav_exec(const struct btr_node *btrn, const char *cmd, char **result)
{
struct check_wav_context *cwc = btr_context(btrn);
int val, header_val, given, arg;