3 files changed, 37 insertions, 10 deletions

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 6482aed4bb7..d3801a00d3d 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4704,6 +4704,7 @@ static int bond_check_params(struct bond_params *params)
 static struct lock_class_key bonding_netdev_xmit_lock_key;
 
 /* Create a new bond based on the specified name and bonding parameters.
+ * If name is NULL, obtain a suitable "bond%d" name for us.
  * Caller must NOT hold rtnl_lock; we need to release it here before we
  * set up our sysfs entries.
  */
@@ -4713,7 +4714,8 @@ int bond_create(char *name, struct bond_params *params, struct bonding **newbond
 	int res;
 
 	rtnl_lock();
-	bond_dev = alloc_netdev(sizeof(struct bonding), name, ether_setup);
+	bond_dev = alloc_netdev(sizeof(struct bonding), name ? name : "",
+				ether_setup);
 	if (!bond_dev) {
 		printk(KERN_ERR DRV_NAME
 		       ": %s: eek! can't alloc netdev!\n",
@@ -4722,6 +4724,12 @@ int bond_create(char *name, struct bond_params *params, struct bonding **newbond
 		goto out_rtnl;
 	}
 
+	if (!name) {
+		res = dev_alloc_name(bond_dev, "bond%d");
+		if (res < 0)
+			goto out_netdev;
+	}
+
 	/* bond_init() must be called after dev_alloc_name() (for the
 	 * /proc files), but before register_netdevice(), because we
 	 * need to set function pointers.
@@ -4748,14 +4756,19 @@ int bond_create(char *name, struct bond_params *params, struct bonding **newbond
 
 	rtnl_unlock(); /* allows sysfs registration of net device */
 	res = bond_create_sysfs_entry(bond_dev->priv);
-	goto done;
+	if (res < 0) {
+		rtnl_lock();
+		goto out_bond;
+	}
+
+	return 0;
+
 out_bond:
 	bond_deinit(bond_dev);
 out_netdev:
 	free_netdev(bond_dev);
 out_rtnl:
 	rtnl_unlock();
-done:
 	return res;
 }
 
@@ -4763,7 +4776,6 @@ static int __init bonding_init(void)
 {
 	int i;
 	int res;
-	char new_bond_name[8];  /* Enough room for 999 bonds at init. */
 
 	printk(KERN_INFO "%s", version);
 
@@ -4776,8 +4788,7 @@ static int __init bonding_init(void)
 	bond_create_proc_dir();
 #endif
 	for (i = 0; i < max_bonds; i++) {
-		sprintf(new_bond_name, "bond%d",i);
-		res = bond_create(new_bond_name,&bonding_defaults, NULL);
+		res = bond_create(NULL, &bonding_defaults, NULL);
 		if (res)
 			goto err;
 	}
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index ced9ed8f995..8e317e11553 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1372,6 +1372,21 @@ int bond_create_sysfs(void)
 		return -ENODEV;
 
 	ret = class_create_file(netdev_class, &class_attr_bonding_masters);
+	/*
+	 * Permit multiple loads of the module by ignoring failures to
+	 * create the bonding_masters sysfs file.  Bonding devices
+	 * created by second or subsequent loads of the module will
+	 * not be listed in, or controllable by, bonding_masters, but
+	 * will have the usual "bonding" sysfs directory.
+	 *
+	 * This is done to preserve backwards compatibility for
+	 * initscripts/sysconfig, which load bonding multiple times to
+	 * configure multiple bonding devices.
+	 */
+	if (ret == -EEXIST) {
+		netdev_class = NULL;
+		return 0;
+	}
 
 	return ret;
 
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 0978c9ac6d2..41aa78bf1f7 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -22,8 +22,8 @@
 #include "bond_3ad.h"
 #include "bond_alb.h"
 
-#define DRV_VERSION	"3.1.1"
-#define DRV_RELDATE	"September 26, 2006"
+#define DRV_VERSION	"3.1.2"
+#define DRV_RELDATE	"January 20, 2007"
 #define DRV_NAME	"bonding"
 #define DRV_DESCRIPTION	"Ethernet Channel Bonding Driver"
 
@@ -237,12 +237,13 @@ static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
 #define BOND_ARP_VALIDATE_ALL		(BOND_ARP_VALIDATE_ACTIVE | \
 					 BOND_ARP_VALIDATE_BACKUP)
 
-extern inline int slave_do_arp_validate(struct bonding *bond, struct slave *slave)
+static inline int slave_do_arp_validate(struct bonding *bond,
+					struct slave *slave)
 {
 	return bond->params.arp_validate & (1 << slave->state);
 }
 
-extern inline unsigned long slave_last_rx(struct bonding *bond,
+static inline unsigned long slave_last_rx(struct bonding *bond,
 					struct slave *slave)
 {
 	if (slave_do_arp_validate(bond, slave))