#include <linux/time.h>
#include <linux/mm.h>
#include <linux/slab.h>
-#include <linux/smp_lock.h>
#include <asm/pgtable.h>
#include <asm/system.h>
static DEFINE_TIMER(slm_timer, slm_test_ready, 0, 0);
-static struct file_operations slm_fops = {
+static const struct file_operations slm_fops = {
.owner = THIS_MODULE,
.read = slm_read,
.write = slm_write,