netdev - Re: [PATCH net-next v2 0/3] net: core: Unify dstats with tstats and lstats, add generic collection helper

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Date: Thu, 06 Jun 2024 11:01:01 +0800
From: Jeremy Kerr <jk@...econstruct.com.au>
To: Jakub Kicinski <kuba@...nel.org>
Cc: David Ahern <dsahern@...nel.org>, "David S. Miller"
 <davem@...emloft.net>,  Eric Dumazet <edumazet@...gle.com>, Paolo Abeni
 <pabeni@...hat.com>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v2 0/3] net: core: Unify dstats with tstats and
 lstats, add generic collection helper

Hi Jakub,

> > If we're not exporting the helpers, that means that drivers that
> > use
> > dstats wouldn't have a facility to customise the stats collection
> > through a ndo_get_stats64() callback though (as can be done with
> > tstats). Are you ok with that?
> > 
> > [the set of drivers that need that is currently zero, so more of a
> > hypothetical future problem...]
> 
> Right, but I think "no exports unless there is an in-tree user"
> is still a rule. A bit of a risk that someone will roll their own
> per-cpu stats pointlessly if we lack this export. But let's try
> to catch that in review..

OK, sounds good! I'll send a v3 shortly.

Cheers,

Jeremy