netdev - Re: [PATCH net-next 12/13] genetlink: allow families to use split ops directly

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Message-ID: <20221019122504.0cb9d326@kernel.org>
Date:   Wed, 19 Oct 2022 12:25:04 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
        pabeni@...hat.com, jiri@...nulli.us, razor@...ckwall.org,
        nicolas.dichtel@...nd.com, gnault@...hat.com,
        jacob.e.keller@...el.com, fw@...len.de
Subject: Re: [PATCH net-next 12/13] genetlink: allow families to use split
 ops directly

On Wed, 19 Oct 2022 10:15:05 +0200 Johannes Berg wrote:
> > full ops. Each split op is 40B while full op is 48B.
> > Devlink for example has 54 dos and 19 dumps, 2 of the dumps
> > do not have a do -> 56 full commands = 2688B.
> > Split ops would have taken 2920B, so 9% more space while
> > allowing individual per/post doit and per-type policies.  
> 
> You mean "Full ops would have [...] while split ops allow individual
> [...]" or so?

Split ops end up being larger as we need a separate entry for each 
do and dump. So I think it's right?