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

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Message-ID: <20200420090505.pr6wsunozfh7afaj@salvia>
Date:   Mon, 20 Apr 2020 11:05:05 +0200
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     Jiri Pirko <jiri@...nulli.us>
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

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.