bonding: remove bond_vlan_used()

We're using it currently to verify if we have vlans before getting the tag
from the skb we're about to send. It's useless because the vlan_get_tag()
verifies if the skb has the tag (and returns an error if not), and we can
receive tagged skbs only if we *already* have vlans.

Plus, the current RCUed implementation is kind of useless anyway - the we
can remove the last vlan in the moment we return from the function.

So remove the only usage of it and the whole function.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 18 deletions

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 4abc925823e1..f7ab16185f68 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -261,24 +261,6 @@ struct bonding {
 #endif /* CONFIG_DEBUG_FS */
 };
 
-/* if we hold rtnl_lock() - call vlan_uses_dev() */
-static inline bool bond_vlan_used(struct bonding *bond)
-{
-        struct net_device *upper;
-        struct list_head *iter;
-
-        rcu_read_lock();
-        netdev_for_each_upper_dev_rcu(bond->dev, upper, iter) {
-                if (upper->priv_flags & IFF_802_1Q_VLAN) {
-                        rcu_read_unlock();
-                        return true;
-                }
-        }
-        rcu_read_unlock();
-
-        return false;
-}
-
 #define bond_slave_get_rcu(dev) \
         ((struct slave *) rcu_dereference(dev->rx_handler_data))