5 files changed, 24 insertions, 23 deletions

diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 370b7da73ab4..7fa7fe71d7a8 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -376,7 +376,8 @@ max_bonds
         Specifies the number of bonding devices to create for this
         instance of the bonding driver.  E.g., if max_bonds is 3, and
         the bonding driver is not already loaded, then bond0, bond1
-        and bond2 will be created.  The default value is 1.
+        and bond2 will be created.  The default value is 1.  Specifying
+        a value of 0 will load bonding, but will not create any devices.
 
 miimon
 
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 3b6d66a8ab98..d57b65dc2c72 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4750,11 +4750,11 @@ static int bond_check_params(struct bond_params *params)
                 }
         }
 
-        if (max_bonds < 1 || max_bonds > INT_MAX) {
+        if (max_bonds < 0 || max_bonds > INT_MAX) {
                 printk(KERN_WARNING DRV_NAME
                        ": Warning: max_bonds (%d) not in range %d-%d, so it "
                        "was reset to BOND_DEFAULT_MAX_BONDS (%d)\n",
-                       max_bonds, 1, INT_MAX, BOND_DEFAULT_MAX_BONDS);
+                       max_bonds, 0, INT_MAX, BOND_DEFAULT_MAX_BONDS);
                 max_bonds = BOND_DEFAULT_MAX_BONDS;
         }
 
@@ -4953,7 +4953,7 @@ static int bond_check_params(struct bond_params *params)
 
                 printk("\n");
 
-        } else {
+        } else if (max_bonds) {
                 /* miimon and arp_interval not set, we need one so things
                  * work as expected, see bonding.txt for details
                  */
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index dd265c69b0df..6caac0ffb2f2 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -53,7 +53,6 @@ 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?
@@ -1447,19 +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;
-
-        netdev_class = firstbond->dev->dev.class;
-        if (!netdev_class)
-                return -ENODEV;
+        int ret;
 
-        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
@@ -1478,10 +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;
@@ -1493,8 +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);
 }
 
 /*
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e92fc839ab1d..9ccbfac3fd95 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1506,6 +1506,9 @@ extern void *dev_seq_next(struct seq_file *seq, void *v, loff_t *pos);
 extern void dev_seq_stop(struct seq_file *seq, void *v);
 #endif
 
+extern int netdev_class_create_file(struct class_attribute *class_attr);
+extern void netdev_class_remove_file(struct class_attribute *class_attr);
+
 extern void linkwatch_run_queue(void);
 
 extern int netdev_compute_features(unsigned long all, unsigned long one);
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index dccd737ea2e3..3f7941319217 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -468,6 +468,19 @@ int netdev_register_kobject(struct net_device *net)
         return device_add(dev);
 }
 
+int netdev_class_create_file(struct class_attribute *class_attr)
+{
+        return class_create_file(&net_class, class_attr);
+}
+
+void netdev_class_remove_file(struct class_attribute *class_attr)
+{
+        class_remove_file(&net_class, class_attr);
+}
+
+EXPORT_SYMBOL(netdev_class_create_file);
+EXPORT_SYMBOL(netdev_class_remove_file);
+
 void netdev_initialize_kobject(struct net_device *net)
 {
         struct device *device = &(net->dev);