netdev - Re: [PATCH v2 net-next 2/2] net: dsa: lan9303: Learn addresses on CPU port when bridged

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20171026143823.GO20299@lunn.ch>
Date:   Thu, 26 Oct 2017 16:38:23 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Egil Hjelmeland <privat@...l-hjelmeland.no>
Cc:     vivien.didelot@...oirfairelinux.com, f.fainelli@...il.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 net-next 2/2] net: dsa: lan9303: Learn addresses on
 CPU port when bridged

On Thu, Oct 26, 2017 at 11:00:49AM +0200, Egil Hjelmeland wrote:
> When CPU transmit directly to port using tag, the LAN9303 does not
> learn MAC addresses received on the CPU port into the ALR.
> ALR learning is performed only when transmitting using ALR lookup.
> 
> Solution:
> If the two external ports are bridged and the packet is not STP BPDU,
> then use ALR lookup to allow ALR learning on CPU port.
> Otherwise transmit directly to port with STP state override.
> 
> Signed-off-by: Egil Hjelmeland <privat@...l-hjelmeland.no>

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew