+ * Show and store fail_over_mac. User only allowed to change the
+ * value when there are no slaves.
+ */
+static ssize_t bonding_show_fail_over_mac(struct device *d, struct device_attribute *attr, char *buf)
+{
+ struct bonding *bond = to_bond(d);
+
+ return sprintf(buf, "%s %d\n",
+ fail_over_mac_tbl[bond->params.fail_over_mac].modename,
+ bond->params.fail_over_mac);
+}
+
+static ssize_t bonding_store_fail_over_mac(struct device *d, struct device_attribute *attr, const char *buf, size_t count)
+{
+ int new_value;
+ struct bonding *bond = to_bond(d);
+
+ if (bond->slave_cnt != 0) {
+ printk(KERN_ERR DRV_NAME
+ ": %s: Can't alter fail_over_mac with slaves in bond.\n",
+ bond->dev->name);
+ return -EPERM;
+ }
+
+ new_value = bond_parse_parm(buf, fail_over_mac_tbl);
+ if (new_value < 0) {
+ printk(KERN_ERR DRV_NAME
+ ": %s: Ignoring invalid fail_over_mac value %s.\n",
+ bond->dev->name, buf);
+ return -EINVAL;
+ }
+
+ bond->params.fail_over_mac = new_value;
+ printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %s (%d).\n",
+ bond->dev->name, fail_over_mac_tbl[new_value].modename,
+ new_value);
+
+ return count;
+}
+
+static DEVICE_ATTR(fail_over_mac, S_IRUGO | S_IWUSR, bonding_show_fail_over_mac, bonding_store_fail_over_mac);
+
+/*