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Date:   Sat, 21 Nov 2020 09:39:03 -0500
From:   Jamal Hadi Salim <>
To:     Cong Wang <>, wenxu <>
Cc:     Jakub Kicinski <>,
        Marcelo Ricardo Leitner <>,
        Vlad Buslov <>,
        Linux Kernel Network Developers <>
Subject: Re: [PATCH v3 net-next 0/3] net/sched: fix over mtu packet of defrag

On 2020-11-20 2:28 p.m., Cong Wang wrote:
> On Thu, Nov 19, 2020 at 3:39 PM <> wrote:
>> From: wenxu <>
>> Currently kernel tc subsystem can do conntrack in act_ct. But when several
>> fragment packets go through the act_ct, function tcf_ct_handle_fragments
>> will defrag the packets to a big one. But the last action will redirect
>> mirred to a device which maybe lead the reassembly big packet over the mtu
>> of target device.
>> The first patch fix miss init the qdisc_skb_cb->mru
>> The send one refactor the hanle of xmit in act_mirred and prepare for the
>> third one
>> The last one add implict packet fragment support to fix the over mtu for
>> defrag in act_ct.
> Overall it looks much better to me now, so:
> Acked-by: Cong Wang <>

LGTM as well.

Acked-by: Jamal Hadi Salim <>


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