From: Michal Kubeček Date: Thu, 22 Nov 2012 02:48:39 +0000 (+0000) Subject: bonding: in balance-rr mode, set curr_active_slave only if it is up X-Git-Tag: MMI-PSA29.97-13-9~15401^2~181 X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=4e591b93d5edb3c126a7257c6e29d978a82656d9;p=GitHub%2FMotorolaMobilityLLC%2Fkernel-slsi.git bonding: in balance-rr mode, set curr_active_slave only if it is up If all slaves of a balance-rr bond with ARP monitor are enslaved with down link state, bond keeps down state even after slaves go up. This is caused by bond_enslave() setting curr_active_slave to first slave not taking into account its link state. As bond_loadbalance_arp_mon() uses curr_active_slave to identify whether slave's down->up transition should update bond's link state, bond stays down even if slaves are up (until first slave goes from up to down at least once). Before commit f31c7937 "bonding: start slaves with link down for ARP monitor", this was masked by slaves always starting in UP state with ARP monitor (and MII monitor not relying on curr_active_slave being NULL if there is no slave up). Signed-off-by: Michal Kubecek Signed-off-by: Jay Vosburgh Signed-off-by: David S. Miller --- diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 5f5b69f37d2e..c8bff3e83a59 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1838,7 +1838,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) * anyway (it holds no special properties of the bond device), * so we can change it without calling change_active_interface() */ - if (!bond->curr_active_slave) + if (!bond->curr_active_slave && new_slave->link == BOND_LINK_UP) bond->curr_active_slave = new_slave; break;