Linux-libre 4.3.2-gnu

1 files changed, 7 insertions, 0 deletions

diff --git a/include/net/bonding.h b/include/net/bonding.h
index 20defc035..c1740a279 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -310,6 +310,13 @@ static inline bool bond_uses_primary(struct bonding *bond)
 	return bond_mode_uses_primary(BOND_MODE(bond));
 }
 
+static inline struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond)
+{
+	struct slave *slave = rcu_dereference(bond->curr_active_slave);
+
+	return bond_uses_primary(bond) && slave ? slave->dev : NULL;
+}
+
 static inline bool bond_slave_is_up(struct slave *slave)
 {
 	return netif_running(slave->dev) && netif_carrier_ok(slave->dev);