static int tap_cdev_kqfilter(dev_t dev, struct knote *kn) { return tap_dev_kqfilter(minor(dev), kn); }
static int tap_fops_kqfilter(file_t *fp, struct knote *kn) { return tap_dev_kqfilter(fp->f_devunit, kn); }
static int tap_fops_kqfilter(file_t *fp, struct knote *kn) { return tap_dev_kqfilter((intptr_t)fp->f_data, kn); }