static ssize_t vmlogrdr_read (struct file *filp, char __user *data,
size_t count, loff_t * ppos);
-static struct file_operations vmlogrdr_fops = {
+static const struct file_operations vmlogrdr_fops = {
.owner = THIS_MODULE,
.open = vmlogrdr_open,
.release = vmlogrdr_release,