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net: dsa: only bring down user ports assigned to a given DSA master

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This is an adaptation of commit c0a8a9c274 ("net: dsa: automatically
bring user ports down when master goes down") for multiple DSA masters.
When a DSA master goes down, only the user ports under its control
should go down too, the others can still send/receive traffic.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Vladimir Oltean 2022-08-19 20:48:16 +03:00 committed by Paolo Abeni
parent 4f03dcc6b9
commit 7136097e11
1 changed files with 3 additions and 0 deletions
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3
net/dsa/slave.c
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@ -2873,6 +2873,9 @@ static int dsa_slave_netdevice_event(struct notifier_block *nb,
if (!dsa_port_is_user(dp))
continue;
if (dp->cpu_dp != cpu_dp)
continue;
list_add(&dp->slave->close_list, &close_list);
}