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Date:   Wed, 20 Feb 2019 15:11:28 +0200
From:   Nikolay Aleksandrov <>
To:     Sebastian Gottschall <>,
        Greg Kroah-Hartman <>
        Ying Xu <>, Hangbin Liu <>,
        Roopa Prabhu <>,
        "David S. Miller" <>,
        Linus Lüssing <>
Subject: Re: [PATCH 4.19 01/24] bridge: do not add port to router list when
 receives query with source

On 20/02/2019 15:09, Nikolay Aleksandrov wrote:
> On 20/02/2019 14:48, Sebastian Gottschall wrote:
>> *reminder*
> [snip]
>>>>>>    }
>>>>>>    static void br_ip4_multicast_query(struct net_bridge *br,
>>>> Is this also a problem in 4.20?  This patch went into 4.20-rc1, so it
>>>> has been around for a while with no reported issues that I can find.
>>>> Any pointers to the reports?
>>> i need to check this. i found this patch in 4.9, 4.14 and 4.4
>>> the rest was picked up from the mailinglist. according to the git sources of 4.20 and 5.0 the same code is in there as well
>>> i just got the report from users today and was able to reproduce it with iptv streams. just by disabling the code it was working again.
>>> Sebastian
>>>> thanks,
>>>> greg k-h
> Could you please include more details about the setup that's broken ?
> Note that we were warned[1] of potential breakage from this change
> after it went in and regardless of the suggestion from the RFC we'll
> probably have to revert this patch.
> Ying Xu as author of the patch, any thoughts ?

My bad, it's Hangbin Liu's patch. It was reported by Ying Xu.

> Also adding Linus Lüssing to the CC as he was the one who warned against it.
> Note that the warning was sent as a reply to my breakage fix, but it was intended
> for the original patch.
> Thanks,
>  Nik
> [1]

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