netdev - Re: [PATCH net-next 3/6] net: dsa: Delete the VID from the upstream port as well

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Message-ID: <20190820135213.GB11752@t480s.localdomain>
Date:   Tue, 20 Aug 2019 13:52:13 -0400
From:   Vivien Didelot <vivien.didelot@...il.com>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>, Ido Schimmel <idosch@...sch.org>,
        Roopa Prabhu <roopa@...ulusnetworks.com>,
        nikolay@...ulusnetworks.com,
        "David S. Miller" <davem@...emloft.net>,
        netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 3/6] net: dsa: Delete the VID from the upstream
 port as well

Hi Vladimir,

On Tue, 20 Aug 2019 12:54:44 +0300, Vladimir Oltean <olteanv@...il.com> wrote:
> I can agree that this isn't one of my brightest moments. But at least
> we get to see Cunningham's law in action :)
> When dsa_8021q is cleaning up the switch's VLAN table for the bridge
> to use it, it is good to really clean it up, i.e. not leave any VLAN
> installed on the upstream ports.
> But I think this is just an academical concern at this point. In
> vlan_filtering mode, the CPU port will accept VLAN frames with the
> dsa_8021q ID's, but they will eventually get dropped due to no
> destination. The real breaker is the pvid change. If something like
> patch 4/6 gets accepted I will drop this one.

I wish Ward had mentioned to submit such academical concern as RFC :)

Please submit smaller series, targeting a single functional problem each,
with clear and detailed messages.


Thanks,

	Vivien