netdev - Re: [PATCH net] net: flow_offload: skip hw stats check for FLOW_ACTION_HW_STATS

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Date:   Mon, 20 Apr 2020 11:13:02 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     Pablo Neira Ayuso <pablo@...filter.org>
Cc:     netfilter-devel@...r.kernel.org, davem@...emloft.net,
        netdev@...r.kernel.org, kuba@...nel.org
Subject: Re: [PATCH net] net: flow_offload: skip hw stats check for
 FLOW_ACTION_HW_STATS_DISABLED

Mon, Apr 20, 2020 at 11:05:05AM CEST, pablo@...filter.org wrote:
>On Mon, Apr 20, 2020 at 10:02:00AM +0200, Jiri Pirko wrote:
>> Sun, Apr 19, 2020 at 01:53:38PM CEST, pablo@...filter.org wrote:
>> >If the frontend requests no stats through FLOW_ACTION_HW_STATS_DISABLED,
>> >drivers that are checking for the hw stats configuration bail out with
>> >EOPNOTSUPP.
>> 
>> Wait, that was a point. Driver has to support stats disabling.
>
>Hm, some drivers used to accept FLOW_ACTION_HW_STATS_DISABLED, now
>rulesets that used to work don't work anymore.

How? This check is here since the introduction of hw stats types.