net: make dev->master general

dev->master is now tightly connected to bonding driver. This patch makes
this pointer more general and ready to be used by others.

 - netdev_set_master() - bond specifics moved to new function
   netdev_set_bond_master()
 - introduced netif_is_bond_slave() to check if device is a bonding slave

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/cxgb3/cxgb3_offload.c b/drivers/net/cxgb3/cxgb3_offload.c
index 7ea94b5205f8..862804f32b6e 100644
--- a/drivers/net/cxgb3/cxgb3_offload.c
+++ b/drivers/net/cxgb3/cxgb3_offload.c
@@ -186,9 +186,10 @@ static struct net_device *get_iff_from_mac(struct adapter *adapter,
                                 dev = NULL;
                                 if (grp)
                                         dev = vlan_group_get_device(grp, vlan);
-                        } else
+                        } else if (netif_is_bond_slave(dev)) {
                                 while (dev->master)
                                         dev = dev->master;
+                        }
                         return dev;
                 }
         }