net: dsa: add port_fdb_dump function
Not all switch chips support a Get Next operation to iterate on its FDB.
So add a more simple port_fdb_dump function for them.
Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index b0b8da0..d76e62b 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -382,6 +382,9 @@
u16 vid = 0;
int ret;
+ if (ds->drv->port_fdb_dump)
+ return ds->drv->port_fdb_dump(ds, p->port, fdb, cb);
+
if (!ds->drv->port_fdb_getnext)
return -EOPNOTSUPP;