From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: olteanv@gmail.com, Florian Fainelli <f.fainelli@gmail.com>,
Andrew Lunn <andrew@lunn.ch>,
Vivien Didelot <vivien.didelot@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH net v2] net: dsa: b53: Ensure the default VID is untagged
Date: Fri, 14 Feb 2020 15:26:19 -0800 [thread overview]
Message-ID: <20200214232619.26482-1-f.fainelli@gmail.com> (raw)
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 <f.fainelli@gmail.com>
---
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);
--
2.17.1
next reply other threads:[~2020-02-14 23:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-14 23:26 Florian Fainelli [this message]
2020-02-17 3:23 ` [PATCH net v2] net: dsa: b53: Ensure the default VID is untagged David Miller
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