Commit 4eab90d9 authored by Vladimir Oltean's avatar Vladimir Oltean Committed by David S. Miller

net: dsa: don't fast age bridge ports with learning turned off

On topology changes, stations that were dynamically learned on ports
that are no longer part of the active topology must be flushed - this is
described by clause "17.11 Updating learned station location information"
of IEEE 802.1D-2004.

However, when address learning on the bridge port is turned off in the
first place, there is nothing to flush, so skip a potentially expensive
operation.

We can finally do this now since DSA is aware of the learning state of
its bridged ports.
Signed-off-by: default avatarVladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 045c45d1
...@@ -50,7 +50,7 @@ int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age) ...@@ -50,7 +50,7 @@ int dsa_port_set_state(struct dsa_port *dp, u8 state, bool do_fast_age)
ds->ops->port_stp_state_set(ds, port, state); ds->ops->port_stp_state_set(ds, port, state);
if (do_fast_age) { if (do_fast_age && dp->learning) {
/* Fast age FDB entries or flush appropriate forwarding database /* Fast age FDB entries or flush appropriate forwarding database
* for the given port, if we are moving it from Learning or * for the given port, if we are moving it from Learning or
* Forwarding state, to Disabled or Blocking or Listening state. * Forwarding state, to Disabled or Blocking or Listening state.
......
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