+
+static int do_discovery(ctl_table *table, int write, struct file *filp,
+ void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+ int ret;
+
+ ret = proc_dointvec(table, write, filp, buffer, lenp, ppos);
+ if (ret)
+ return ret;
+
+ if (irlmp == NULL)
+ return -ENODEV;
+
+ if (sysctl_discovery)
+ irlmp_start_discovery_timer(irlmp, sysctl_discovery_timeout*HZ);
+ else
+ del_timer_sync(&irlmp->discovery_timer);
+
+ return ret;
+}
+