bonding: fix enslavement slave link notifications

Currently, link notifications are not sent by
bond_set_slave_link_state() upon enslavement if
the slave is enslaved when up.

This happens because slave->link default init value
is 0, which is the same as BOND_LINK_UP, resulting
in bond_set_slave_link_state() ignoring this transition.

This patch sets the default value of slave->link to
BOND_LINK_NOCHANGE, assuring it will count as a state
transition and thus trigger notification logic.

Signed-off-by: Aviv Heller <[email protected]>
Reviewed-by: Jiri Pirko <[email protected]>
Signed-off-by: Saeed Mahameed <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 941ec99cd3b69b6c9d3596e5b65b6aa89bc960c7..a2afa3be17a4bcc4e662a17e49f5c6bc31bce4d3 100644 (file)
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1584,6 +1584,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
        }
 
        /* check for initial state */
+       new_slave->link = BOND_LINK_NOCHANGE;
        if (bond->params.miimon) {
                if (bond_check_dev_link(bond, slave_dev, 0) == BMSR_LSTATUS) {
                        if (bond->params.updelay) {