netdev - Re: [PATCH 12/15] ice: Add stats and ethtool support

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Date:   Tue, 13 Mar 2018 20:42:45 +0000
From:   "Venkataramanan, Anirudh" <anirudh.venkataramanan@...el.com>
To:     "stephen@...workplumber.org" <stephen@...workplumber.org>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>
Subject: Re: [PATCH 12/15] ice: Add stats and ethtool support

On Sat, 2018-03-10 at 08:42 -0800, Stephen Hemminger wrote:
> On Fri,  9 Mar 2018 09:21:33 -0800
> Anirudh Venkataramanan <anirudh.venkataramanan@...el.com> wrote:
> 
> > +	/* VSI stats */
> > +	struct rtnl_link_stats64 net_stats;
> > +	struct rtnl_link_stats64 net_stats_prev;
> > +	struct ice_eth_stats eth_stats;
> > +	struct ice_eth_stats eth_stats_prev;
> 
> You also don't need current and previous as separate copies since
> previous is only
> used while computing the current values.

Thanks for the feedback, Stephen.

eth_stats_prev is used in ice_update_eth_stats when we update
eth_stats.

While looking into this though, I found that net_stats_prev field in
struct ice_vsi (and consequently *prev_ns and *prev_es pointers in
ice_update_vsi_stats) may not be needed. Is this what you meant?

Thanks!
Ani

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