netdev - Re: [PATCH net-next 1/6] docs: add more netlink docs (incl. spec docs)

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Message-ID: <20220929073224.2f3869ca@kernel.org>
Date:   Thu, 29 Sep 2022 07:32:24 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Guillaume Nault <gnault@...hat.com>
Cc:     davem@...emloft.net, netdev@...r.kernel.org, edumazet@...gle.com,
        pabeni@...hat.com, robh@...nel.org, johannes@...solutions.net,
        ecree.xilinx@...il.com, stephen@...workplumber.org, sdf@...gle.com,
        f.fainelli@...il.com, fw@...len.de, linux-doc@...r.kernel.org,
        razor@...ckwall.org, nicolas.dichtel@...nd.com
Subject: Re: [PATCH net-next 1/6] docs: add more netlink docs (incl. spec
 docs)

On Thu, 29 Sep 2022 15:34:13 +0200 Guillaume Nault wrote:
> > +Make sure to pass the request info to genl_notify() to allow ``NLM_F_ECHO``
> > +to take effect.  
> 
> Do you mean that netlink commands should properly handle NLM_F_ECHO,
> although they should also design their API so that users don't need it?

Yes, ECHO should be supported but as an extra, not something that
is crucial to write a basic script without assuming full ownership 
of the system...

IOW support the logging use case you mentioned but don't do the NEWLINK
thing.

Should I clarify or rephrase? The ECHO section needs to be read with
the one above it to get the full answer.