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Date:   Tue, 5 Feb 2019 14:07:09 +0100
From:   Jiri Pirko <>
To:     Vlad Buslov <>
Subject: Re: [PATCH net-next v3 08/16] net: sched: traverse classifiers in
 chain with tcf_get_next_proto()

Mon, Feb 04, 2019 at 01:32:53PM CET, wrote:
>All users of chain->filters_chain rely on rtnl lock and assume that no new
>classifier instances are added when traversing the list. Use
>tcf_get_next_proto() to traverse filters list without relying on rtnl
>mutex. This function iterates over classifiers by taking reference to
>current iterator classifier only and doesn't assume external
>synchronization of filters list.
>Signed-off-by: Vlad Buslov <>

Acked-by: Jiri Pirko <>

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