compat_console_font_op
compat_kdfontop_ioctl(struct compat_console_font_op __user *fontop,
if (copy_from_user(op, fontop, sizeof(struct compat_console_font_op)))
op->data = compat_ptr(((struct compat_console_font_op *)op)->data);
((struct compat_console_font_op *)op)->data = (unsigned long)op->data;
if (copy_to_user(fontop, op, sizeof(struct compat_console_font_op)))