netdev - Re: [PATCH net-next] net: dsa: set configure_vlan_while_not

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Message-ID: <20210115150314.757c8740@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com>
Date:   Fri, 15 Jan 2021 15:03:14 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Woojung Huh <woojung.huh@...rochip.com>,
        UNGLinuxDriver@...rochip.com, Sean Wang <sean.wang@...iatek.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Russell King <rmk+kernel@...linux.org.uk>,
        Oleksij Rempel <linux@...pel-privat.de>
Subject: Re: [PATCH net-next] net: dsa: set
 configure_vlan_while_not_filtering to true by default

On Thu, 14 Jan 2021 19:34:26 +0200 Vladimir Oltean wrote:
> From: Vladimir Oltean <vladimir.oltean@....com>
> 
> As explained in commit 54a0ed0df496 ("net: dsa: provide an option for
> drivers to always receive bridge VLANs"), DSA has historically been
> skipping VLAN switchdev operations when the bridge wasn't in
> vlan_filtering mode, but the reason why it was doing that has never been
> clear. So the configure_vlan_while_not_filtering option is there merely
> to preserve functionality for existing drivers. It isn't some behavior
> that drivers should opt into. Ideally, when all drivers leave this flag
> set, we can delete the dsa_port_skip_vlan_configuration() function.

No longer applies :(