From 23c147e026bbb41dd26a2bda0404a95ea951072f Mon Sep 17 00:00:00 2001 From: Veaceslav Falico Date: Fri, 27 Sep 2013 15:10:57 +0200 Subject: bonding: correctly verify for the first slave in bond_enslave After commit 1f718f0f4f97145f4072d2d72dcf85069ca7226d ("bonding: populate neighbour's private on enslave"), we've moved the actual 'linking' in the end of the function - so that, once linked, the slave is ready to be used, and is not still in the process of enslaving. However, 802.3ad verified if it's the first slave by looking at the if (bond_first_slave(bond) == new_slave) which, because we've moved the linking to the end, became broken - on the first slave bond_first_slave(bond) returns NULL. Fix this by verifying if the prev_slave, that equals bond_last_slave(), is actually populated - if it is - then it's not the first slave, and vice versa. CC: Jay Vosburgh CC: Andy Gospodarek Signed-off-by: Veaceslav Falico Signed-off-by: David S. Miller --- drivers/net/bonding/bond_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index d5c3153226b7..0367f8095390 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -1557,7 +1557,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev) */ bond_set_slave_inactive_flags(new_slave); /* if this is the first slave */ - if (bond_first_slave(bond) == new_slave) { + if (!prev_slave) { SLAVE_AD_INFO(new_slave).id = 1; /* Initialize AD with the number of times that the AD timer is called in 1 second * can be called only after the mac address of the bond is set -- cgit v1.2.3