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bonding: Add function to get the xmit slave in active-backup mode

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Add helper function to get the xmit slave in active-backup mode.
It's only one line function that return the curr_active_slave,
but it will used both in the xmit flow and by the new .ndo to get
the xmit slave.

Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Reviewed-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Maor Gottlieb 2020-04-30 22:21:37 +03:00 committed by Saeed Mahameed
parent 29d5bbccb3
commit 5a19f1c1a2
1 changed files with 7 additions and 1 deletions
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8
drivers/net/bonding/bond_main.c
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@ -4042,6 +4042,12 @@ static netdev_tx_t bond_xmit_roundrobin(struct sk_buff *skb,
return NETDEV_TX_OK;
}
static struct slave *bond_xmit_activebackup_slave_get(struct bonding *bond,
struct sk_buff *skb)
{
return rcu_dereference(bond->curr_active_slave);
}
/* In active-backup mode, we know that bond->curr_active_slave is always valid if
* the bond has a usable interface.
*/
@ -4051,7 +4057,7 @@ static netdev_tx_t bond_xmit_activebackup(struct sk_buff *skb,
struct bonding *bond = netdev_priv(bond_dev);
struct slave *slave;
slave = rcu_dereference(bond->curr_active_slave);
slave = bond_xmit_activebackup_slave_get(bond, skb);
if (slave)
bond_dev_queue_xmit(bond, skb, slave->dev);
else