diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-08-08 17:35:24 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-08-08 20:56:51 +0100 |
| commit | 4eab90d9737b348094a99ba4e4c473e91a8b8038 (patch) | |
| tree | bff049a0692695364b3eb9e2d39f3e58822335b5 /net/dsa | |
| parent | 045c45d1f598c65806f885b59f6fbc4cebb62b15 (diff) | |
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: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
| -rw-r--r-- | net/dsa/port.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c index d6a35a03acd6..a4c8d19a76e2 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -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); - if (do_fast_age) { + if (do_fast_age && dp->learning) { /* Fast age FDB entries or flush appropriate forwarding database * for the given port, if we are moving it from Learning or * Forwarding state, to Disabled or Blocking or Listening state. |