From d965a5432d4c3e6b9c3d2bc1d4a800013bbf76f6 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Fri, 14 Feb 2020 15:26:19 -0800 Subject: [PATCH] net: dsa: b53: Ensure the default VID is untagged We need to ensure that the default VID is untagged otherwise the switch will be sending tagged frames and the results can be problematic. This is especially true with b53 switches that use VID 0 as their default VLAN since VID 0 has a special meaning. Fixes: fea83353177a ("net: dsa: b53: Fix default VLAN ID") Fixes: 061f6a505ac3 ("net: dsa: Add ndo_vlan_rx_{add, kill}_vid implementation") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/dsa/b53/b53_common.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index 449a22172e07..1a69286daa8d 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1366,6 +1366,9 @@ void b53_vlan_add(struct dsa_switch *ds, int port, b53_get_vlan_entry(dev, vid, vl); + if (vid == 0 && vid == b53_default_pvid(dev)) + untagged = true; + vl->members |= BIT(port); if (untagged && !dsa_is_cpu_port(ds, port)) vl->untag |= BIT(port);