netdev - Re: [PATCH net-next 00/15] net: bridge: mcast: initial IGMPv3 support (part 1)

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Message-ID: <d7b03d6d-90ca-5df1-13de-33f69d8c86a8@cumulusnetworks.com>
Date:   Tue, 1 Sep 2020 12:22:23 +0300
From:   Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To:     netdev@...r.kernel.org
Cc:     roopa@...dia.com, bridge@...ts.linux-foundation.org,
        davem@...emloft.net
Subject: Re: [PATCH net-next 00/15] net: bridge: mcast: initial IGMPv3 support
 (part 1)

On 31/08/2020 18:08, Nikolay Aleksandrov wrote:
> Hi all,
> This patch-set implements the control plane for initial IGMPv3 support.
[snip]

Self-NAK, my torture tests uncovered (a rather obvious) locking issue with the dump
code. The src groups will have to be traversed with RCU, and thus RCU-friendly
since the mdb dump code doesn't acquire multicast_lock and we don't want to block
IGMP processing.

I'll wait with v2 to see if there are any other comments.

Thanks,
 Nik