bonding: alb: convert to bond->mode_lock

The ALB/TLB specific spinlocks are no longer necessary as we now have
bond->mode_lock for this purpose, so convert them and remove them from
struct alb_bond_info.
Also remove the unneeded lock/unlock functions and use spin_lock/unlock
directly.
Suggested-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/bonding/bond_alb.h

@@ -147,7 +147,6 @@ struct tlb_up_slave {
 
 struct alb_bond_info {
 	struct tlb_client_info	*tx_hashtbl; /* Dynamically allocated */
-	spinlock_t		tx_hashtbl_lock;
 	u32			unbalanced_load;
 	int			tx_rebalance_counter;
 	int			lp_counter;
@@ -156,7 +155,6 @@ struct alb_bond_info {
 	/* -------- rlb parameters -------- */
 	int rlb_enabled;
 	struct rlb_client_info	*rx_hashtbl;	/* Receive hash table */
-	spinlock_t		rx_hashtbl_lock;
 	u32			rx_hashtbl_used_head;
 	u8			rx_ntt;	/* flag - need to transmit
 					 * to all rx clients

drivers/net/bonding/bond_debugfs.c

@@ -29,7 +29,7 @@ static int bond_debug_rlb_hash_show(struct seq_file *m, void *v)
 	seq_printf(m, "SourceIP        DestinationIP   "
 			"Destination MAC   DEV\n");
 
-	spin_lock_bh(&(BOND_ALB_INFO(bond).rx_hashtbl_lock));
+	spin_lock_bh(&bond->mode_lock);
 
 	hash_index = bond_info->rx_hashtbl_used_head;
 	for (; hash_index != RLB_NULL_INDEX;
@@ -42,7 +42,7 @@ static int bond_debug_rlb_hash_show(struct seq_file *m, void *v)
 			client_info->slave->dev->name);
 	}
 
-	spin_unlock_bh(&(BOND_ALB_INFO(bond).rx_hashtbl_lock));
+	spin_unlock_bh(&bond->mode_lock);
 
 	return 0;
 }

drivers/net/bonding/bond_main.c

@@ -4297,19 +4297,9 @@ static int bond_init(struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct bond_net *bn = net_generic(dev_net(bond_dev), bond_net_id);
-	struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
 
 	netdev_dbg(bond_dev, "Begin bond_init\n");
 
-	/*
-	 * Initialize locks that may be required during
-	 * en/deslave operations.  All of the bond_open work
-	 * (of which this is part) should really be moved to
-	 * a phase prior to dev_open
-	 */
-	spin_lock_init(&(bond_info->tx_hashtbl_lock));
-	spin_lock_init(&(bond_info->rx_hashtbl_lock));
-
 	bond->wq = create_singlethread_workqueue(bond_dev->name);
 	if (!bond->wq)
 		return -ENOMEM;