1 files changed, 61 insertions, 42 deletions

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 08f3d396bcd6..6caac0ffb2f2 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -50,9 +50,9 @@ extern struct bond_parm_tbl bond_mode_tbl[];
 extern struct bond_parm_tbl bond_lacp_tbl[];
 extern struct bond_parm_tbl xmit_hashtype_tbl[];
 extern struct bond_parm_tbl arp_validate_tbl[];
+extern struct bond_parm_tbl fail_over_mac_tbl[];
 
 static int expected_refcount = -1;
-static struct class *netdev_class;
 /*--------------------------- Data Structures -----------------------------*/
 
 /* Bonding sysfs lock.  Why can't we just use the subsystem lock?
@@ -111,7 +111,6 @@ static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t
         char *ifname;
         int rv, res = count;
         struct bonding *bond;
-        struct bonding *nxt;
 
         sscanf(buffer, "%16s", command); /* IFNAMSIZ*/
         ifname = command + 1;
@@ -122,7 +121,7 @@ static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t
         if (command[0] == '+') {
                 printk(KERN_INFO DRV_NAME
                         ": %s is being created...\n", ifname);
-                rv = bond_create(ifname, &bonding_defaults, &bond);
+                rv = bond_create(ifname, &bonding_defaults);
                 if (rv) {
                         printk(KERN_INFO DRV_NAME ": Bond creation failed.\n");
                         res = rv;
@@ -134,7 +133,7 @@ static ssize_t bonding_store_bonds(struct class *cls, const char *buffer, size_t
                 rtnl_lock();
                 down_write(&bonding_rwsem);
 
-                list_for_each_entry_safe(bond, nxt, &bond_dev_list, bond_list)
+                list_for_each_entry(bond, &bond_dev_list, bond_list)
                         if (strnicmp(bond->dev->name, ifname, IFNAMSIZ) == 0) {
                                 /* check the ref count on the bond's kobject.
                                  * If it's > expected, then there's a file open,
@@ -548,42 +547,37 @@ static ssize_t bonding_show_fail_over_mac(struct device *d, struct device_attrib
 {
         struct bonding *bond = to_bond(d);
 
-        return sprintf(buf, "%d\n", bond->params.fail_over_mac) + 1;
+        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;
-        int ret = count;
         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);
-                ret = -EPERM;
-                goto out;
+                return -EPERM;
         }
 
-        if (sscanf(buf, "%d", &new_value) != 1) {
+        new_value = bond_parse_parm(buf, fail_over_mac_tbl);
+        if (new_value < 0) {
                 printk(KERN_ERR DRV_NAME
-                       ": %s: no fail_over_mac value specified.\n",
-                       bond->dev->name);
-                ret = -EINVAL;
-                goto out;
+                       ": %s: Ignoring invalid fail_over_mac value %s.\n",
+                       bond->dev->name, buf);
+                return -EINVAL;
         }
 
-        if ((new_value == 0) || (new_value == 1)) {
-                bond->params.fail_over_mac = new_value;
-                printk(KERN_INFO DRV_NAME ": %s: Setting fail_over_mac to %d.\n",
-                       bond->dev->name, new_value);
-        } else {
-                printk(KERN_INFO DRV_NAME
-                       ": %s: Ignoring invalid fail_over_mac value %d.\n",
-                       bond->dev->name, new_value);
-        }
-out:
-        return ret;
+        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);
@@ -952,6 +946,45 @@ out:
 static DEVICE_ATTR(lacp_rate, S_IRUGO | S_IWUSR, bonding_show_lacp, bonding_store_lacp);
 
 /*
+ * Show and set the number of grat ARP to send after a failover event.
+ */
+static ssize_t bonding_show_n_grat_arp(struct device *d,
+                                   struct device_attribute *attr,
+                                   char *buf)
+{
+        struct bonding *bond = to_bond(d);
+
+        return sprintf(buf, "%d\n", bond->params.num_grat_arp);
+}
+
+static ssize_t bonding_store_n_grat_arp(struct device *d,
+                                    struct device_attribute *attr,
+                                    const char *buf, size_t count)
+{
+        int new_value, ret = count;
+        struct bonding *bond = to_bond(d);
+
+        if (sscanf(buf, "%d", &new_value) != 1) {
+                printk(KERN_ERR DRV_NAME
+                       ": %s: no num_grat_arp value specified.\n",
+                       bond->dev->name);
+                ret = -EINVAL;
+                goto out;
+        }
+        if (new_value < 0 || new_value > 255) {
+                printk(KERN_ERR DRV_NAME
+                       ": %s: Invalid num_grat_arp value %d not in range 0-255; rejected.\n",
+                       bond->dev->name, new_value);
+                ret = -EINVAL;
+                goto out;
+        } else {
+                bond->params.num_grat_arp = new_value;
+        }
+out:
+        return ret;
+}
+static DEVICE_ATTR(num_grat_arp, S_IRUGO | S_IWUSR, bonding_show_n_grat_arp, bonding_store_n_grat_arp);
+/*
  * Show and set the MII monitor interval.  There are two tricky bits
  * here.  First, if MII monitoring is activated, then we must disable
  * ARP monitoring.  Second, if the timer isn't running, we must
@@ -1388,6 +1421,7 @@ static struct attribute *per_bond_attrs[] = {
         &dev_attr_updelay.attr,
         &dev_attr_lacp_rate.attr,
         &dev_attr_xmit_hash_policy.attr,
+        &dev_attr_num_grat_arp.attr,
         &dev_attr_miimon.attr,
         &dev_attr_primary.attr,
         &dev_attr_use_carrier.attr,
@@ -1412,19 +1446,9 @@ static struct attribute_group bonding_group = {
  */
 int bond_create_sysfs(void)
 {
-        int ret = 0;
-        struct bonding *firstbond;
-
-        /* get the netdev class pointer */
-        firstbond = container_of(bond_dev_list.next, struct bonding, bond_list);
-        if (!firstbond)
-                return -ENODEV;
+        int ret;
 
-        netdev_class = firstbond->dev->dev.class;
-        if (!netdev_class)
-                return -ENODEV;
-
-        ret = class_create_file(netdev_class, &class_attr_bonding_masters);
+        ret = netdev_class_create_file(&class_attr_bonding_masters);
         /*
          * Permit multiple loads of the module by ignoring failures to
          * create the bonding_masters sysfs file.  Bonding devices
@@ -1443,10 +1467,6 @@ int bond_create_sysfs(void)
                         printk(KERN_ERR
                                "network device named %s already exists in sysfs",
                                class_attr_bonding_masters.attr.name);
-                else {
-                        netdev_class = NULL;
-                        return 0;
-                }
         }
 
         return ret;
@@ -1458,8 +1478,7 @@ int bond_create_sysfs(void)
  */
 void bond_destroy_sysfs(void)
 {
-        if (netdev_class)
-                class_remove_file(netdev_class, &class_attr_bonding_masters);
+        netdev_class_remove_file(&class_attr_bonding_masters);
 }
 
 /*