linux-kernel - Re: [PATCH v4 net-next 04/12] net: ethtool: netlink: retrieve stats from multiple sources (eMAC, pMAC)

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Message-ID: <20230123223033.3ad37ccc@kernel.org>
Date:   Mon, 23 Jan 2023 22:30:33 -0800
From:   Jakub Kicinski <kuba@...nel.org>
To:     Eric Dumazet <edumazet@...gle.com>
Cc:     Vladimir Oltean <vladimir.oltean@....com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Michal Kubecek <mkubecek@...e.cz>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Vinicius Costa Gomes <vinicius.gomes@...el.com>,
        Xiaoliang Yang <xiaoliang.yang_1@....com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Rui Sousa <rui.sousa@....com>,
        Ferenc Fejes <ferenc.fejes@...csson.com>,
        Pranavi Somisetty <pranavi.somisetty@....com>,
        Harini Katakam <harini.katakam@....com>,
        Colin Foster <colin.foster@...advantage.com>,
        UNGLinuxDriver@...rochip.com,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [PATCH v4 net-next 04/12] net: ethtool: netlink: retrieve stats
 from multiple sources (eMAC, pMAC)

On Tue, 24 Jan 2023 07:20:20 +0100 Eric Dumazet wrote:
> >  static int pause_prepare_data(const struct ethnl_req_info *req_base,
> >                               struct ethnl_reply_data *reply_base,
> >                               struct genl_info *info)
> >  {
> > +       const struct pause_req_info *req_info = PAUSE_REQINFO(req_base);
> >         struct pause_reply_data *data = PAUSE_REPDATA(reply_base);
> > +       enum ethtool_mac_stats_src src = req_info->src;
> > +       struct netlink_ext_ack *extack = info->extack;  
> 
> info can be NULL when called from ethnl_default_dump_one()

Second time in a month, I think..

Should we make a fake info to pass here? (until someone finds the time 
to combine the do/dump infos more thoroughly, at least)