From 25d3b493a52d4ece811ba07881558fc7f6778fb8 Mon Sep 17 00:00:00 2001 From: Toshiaki Makita Date: Mon, 9 Feb 2015 20:16:17 +0900 Subject: [PATCH] bridge: Fix inability to add non-vlan fdb entry Bridge's default_pvid adds a vid by default, by which we cannot add a non-vlan fdb entry by default, because br_fdb_add() adds fdb entries for all vlans instead of a non-vlan one when any vlan is configured. # ip link add br0 type bridge # ip link set eth0 master br0 # bridge fdb add 12:34:56:78:90:ab dev eth0 master temp # bridge fdb show brport eth0 | grep 12:34:56:78:90:ab 12:34:56:78:90:ab dev eth0 vlan 1 static We expect a non-vlan fdb entry as well as vlan 1: 12:34:56:78:90:ab dev eth0 static To fix this, we need to insert a non-vlan fdb entry if vlan is not specified, even when any vlan is configured. Fixes: 5be5a2df40f0 ("bridge: Add filtering support for default_pvid") Signed-off-by: Toshiaki Makita Signed-off-by: David S. Miller --- net/bridge/br_fdb.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c index cc36e59db7d7..c041f99f5a78 100644 --- a/net/bridge/br_fdb.c +++ b/net/bridge/br_fdb.c @@ -840,10 +840,9 @@ int br_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], /* VID was specified, so use it. */ err = __br_fdb_add(ndm, p, addr, nlh_flags, vid); } else { - if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) { - err = __br_fdb_add(ndm, p, addr, nlh_flags, 0); + err = __br_fdb_add(ndm, p, addr, nlh_flags, 0); + if (err || !pv) goto out; - } /* We have vlans configured on this port and user didn't * specify a VLAN. To be nice, add/update entry for every @@ -911,16 +910,15 @@ int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[], err = __br_fdb_delete(p, addr, vid); } else { - if (!pv || bitmap_empty(pv->vlan_bitmap, VLAN_N_VID)) { - err = __br_fdb_delete(p, addr, 0); + err = -ENOENT; + err &= __br_fdb_delete(p, addr, 0); + if (!pv) goto out; - } /* We have vlans configured on this port and user didn't * specify a VLAN. To be nice, add/update entry for every * vlan on this port. */ - err = -ENOENT; for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID) { err &= __br_fdb_delete(p, addr, vid); } -- 2.20.1