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

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Date:   Thu, 27 Apr 2017 15:33:33 +0300
From:   Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:     Arkadi Sharshevsky <arkadis@...lanox.com>, netdev@...r.kernel.org
Cc:     davem@...emloft.net, stephen@...workplumber.org,
        bridge@...ts.linux-foundation.org,
        Ido Schimmel <idosch@...lanox.com>
Subject: Re: [PATCH net-next] net: bridge: Fix improper taking over HW learned
 FDB

On 27/04/17 11:08, Arkadi Sharshevsky wrote:
> 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>
> Cc: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
> ---
>  net/bridge/br_fdb.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)

Thanks!

Acked-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>