netdev - Re: [PATCH net-next v3] net: bridge: Fix improper taking over HW learned FDB

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Message-Id: <20170430.224652.1616918504779575655.davem@davemloft.net>
Date:   Sun, 30 Apr 2017 22:46:52 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     arkadis@...lanox.com
Cc:     netdev@...r.kernel.org, stephen@...workplumber.org,
        bridge@...ts.linux-foundation.org, idosch@...lanox.com,
        nikolay@...ulusnetworks.com
Subject: Re: [PATCH net-next v3] net: bridge: Fix improper taking over HW
 learned FDB

From: Arkadi Sharshevsky <arkadis@...lanox.com>
Date: Fri, 28 Apr 2017 22:39:07 +0300

> Commit 7e26bf45e4cb ("net: bridge: allow SW learn to take over HW fdb
> entries") added the ability to "take over an entry which was previously
> learned via HW when it shows up from a SW port".
> 
> However, if an entry was learned via HW and then a control packet
> (e.g., ARP request) was trapped to the CPU, the bridge driver will
> update the entry and remove the externally learned flag, although the
> entry is still present in HW. Instead, only clear the externally learned
> flag in case of roaming.
> 
> Fixes: 7e26bf45e4cb ("net: bridge: allow SW learn to take over HW fdb entries")
> Signed-off-by: Ido Schimmel <idosch@...lanox.com>
> Signed-off-by: Arkadi Sharashevsky <arkadis@...lanox.com>

Applied, thanks.