netdev - Re: PROBLEM: multicast router does not fill UDP csum of its own forwarded packets

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Message-ID: <51ca6cd2b8444f008164bb1fc89164c4@skoda.cz>
Date:   Thu, 14 Oct 2021 10:36:18 +0000
From:   Strejc Cyril <cyril.strejc@...da.cz>
To:     Jakub Kicinski <kuba@...nel.org>
CC:     "David S. Miller" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: PROBLEM: multicast router does not fill UDP csum of its own
 forwarded packets

On 10/13/21 4:20 PM, Jakub Kicinski wrote:
> On Fri, 8 Oct 2021 20:08:36 +0000 Strejc Cyril wrote:
>> please let me summarize a problem regarding Linux multicast routing
>> in combination with L4 checksum offloading and own (locally produced)
>> multicast packets being forwarded.
> 
> Hi Cyril, thanks for the report, looks like nobody has immediate
> feedback to share. Could you resend the patch in more usual form
> so that it's easier to review and harder to ignore?

Thanks Jakub, I will do so. The patch I sent meant to be illustrative 
for the problem, but of course, the problem can be discussed around the 
patch.