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

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Message-ID: <20221020110950.6e91f9bb@kernel.org>
Date:   Thu, 20 Oct 2022 11:09:50 -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 Thu, 20 Oct 2022 09:32:17 +0200 Johannes Berg wrote:
> Hmm. The codegen/YAML part likely won't really happen for all of the
> families so perhaps some simplification would be good?
> 
> I feel like I probably should've changed this when adding
> GENL_DONT_VALIDATE_DUMP_STRICT / GENL_DONT_VALIDATE_STRICT, but I guess
> that's too late now :(
> 
> I guess we could add another set of flags, but that'd be annoying.

Perhaps we could hang it of the .resv_start_op as well?
Any op past that would treat policy == NULL as reject all?

We'd need to add GENL_DONT_VALIDATE_DO for families which 
want to parse inside the callbacks. I wonder if people would
get annoyed.

> OTOH, it's nicer if future things are better, and we don't need to add a
> "reject all" policy to all of them?