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Date:   Wed, 13 Feb 2019 17:59:46 +0100
From:   Pablo Neira Ayuso <>
To:     John Hurley <>
Subject: Re: [PATCH net-next 1/1] flow_offload: fix block stats

On Wed, Feb 13, 2019 at 12:23:52AM +0000, John Hurley wrote:
> With the introduction of flow_stats_update(), drivers now update the stats
> fields of the passed tc_cls_flower_offload struct, rather than call
> tcf_exts_stats_update() directly to update the stats of offloaded TC
> flower rules. However, if multiple qdiscs are registered to a TC shared
> block and a flower rule is applied, then, when getting stats for the rule,
> multiple callbacks may be made.
> Take this into consideration by modifying flow_stats_update to gather the
> stats from all callbacks. Currently, the values in tc_cls_flower_offload
> only account for the last stats callback in the list.
> Fixes: 3b1903ef97c0 ("flow_offload: add statistics retrieval infrastructure and use it")
> Signed-off-by: John Hurley <>
> Reviewed-by: Jakub Kicinski <>

Acked-by: Pablo Neira Ayuso <>

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