diff options
| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2021-10-24 20:17:52 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-10-25 12:59:41 +0100 |
| commit | f7eb4a1c0864821fe99edf12aca09739f9cbd7a4 (patch) | |
| tree | 1888441f36718b323c60652a86bf50eb6c838ffe /drivers/net/dsa/b53/b53_priv.h | |
| parent | 2468346c5677919de288bee85a0fefbef70c1e4e (diff) | |
net: dsa: b53: serialize access to the ARL table
The b53 driver performs non-atomic transactions to the ARL table when
adding, deleting and reading FDB and MDB entries.
Traditionally these were all serialized by the rtnl_lock(), but now it
is possible that DSA calls ->port_fdb_add and ->port_fdb_del without
holding that lock.
So the driver must have its own serialization logic. Add a mutex and
hold it from all entry points (->port_fdb_{add,del,dump},
->port_mdb_{add,del}).
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa/b53/b53_priv.h')
| -rw-r--r-- | drivers/net/dsa/b53/b53_priv.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/dsa/b53/b53_priv.h b/drivers/net/dsa/b53/b53_priv.h index 544101e74bca..579da74ada64 100644 --- a/drivers/net/dsa/b53/b53_priv.h +++ b/drivers/net/dsa/b53/b53_priv.h @@ -107,6 +107,7 @@ struct b53_device { struct mutex reg_mutex; struct mutex stats_mutex; + struct mutex arl_mutex; const struct b53_io_ops *ops; /* chip specific data */ |