bridge: Fix updating FDB entries when the PVID is applied

We currently set the value that variable vid is pointing, which will be
used in FDB later, to 0 at br_allowed_ingress() when we receive untagged
or priority-tagged frames, even though the PVID is valid.
This leads to FDB updates in such a wrong way that they are learned with
VID 0.
Update the value to that of PVID if the PVID is applied.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Reviewed-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 5a9c44a0c306..53f0990eab58 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -217,6 +217,7 @@ bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
                 /* PVID is set on this port.  Any untagged or priority-tagged
                  * ingress frame is considered to belong to this vlan.
                  */
+                *vid = pvid;
                 if (likely(err))
                         /* Untagged Frame. */
                         __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), pvid);