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net: bonding: Notify ports about their initial state

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When creating a static bond (e.g. balance-xor), all ports will always
be enabled. This is set, and the corresponding notification is sent
out, before the port is linked to the bond upper.

In the offloaded case, this ordering is hard to deal with.

The lower will first see a notification that it can not associate with
any bond. Then the bond is joined. After that point no more
notifications are sent, so all ports remain disabled.

This change simply sends an extra notification once the port has been
linked to the upper to synchronize the initial state.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Tested-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Tobias Waldekranz 2021-01-13 09:42:51 +01:00 committed by Jakub Kicinski
parent bb5c64c879
commit 32d4c5647a
1 changed files with 2 additions and 0 deletions
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2
drivers/net/bonding/bond_main.c
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@ -1922,6 +1922,8 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev,
goto err_unregister;
}
bond_lower_state_changed(new_slave);
res = bond_sysfs_slave_add(new_slave);
if (res) {
slave_dbg(bond_dev, slave_dev, "Error %d calling bond_sysfs_slave_add\n", res);