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Date: Wed, 11 Oct 2023 13:21:07 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Jiri Pirko <jiri@resnulli.us>
Cc: netdev@vger.kernel.org, nicolas.dichtel@6wind.com,
 johannes@sipsolutions.net, fw@strlen.de, pablo@netfilter.org,
 mkubecek@suse.cz, aleksander.lobakin@intel.com
Subject: Re: [RFC] netlink: add variable-length / auto integers
Message-ID: <20231011132107.7eb89258@kernel.org>
In-Reply-To: <ZSbVASHPVoNfWwce@nanopsycho>
References: <20231011003313.105315-1-kuba@kernel.org>
	<ZSanRz7kV1rduMBE@nanopsycho>
	<20231011091624.4057e456@kernel.org>
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On Wed, 11 Oct 2023 19:01:53 +0200 Jiri Pirko wrote:
> Wed, Oct 11, 2023 at 06:16:24PM CEST, kuba@kernel.org wrote:
> >No, fixed types are still allowed, just discouraged.  
> 
> Why?

The only legit use case that comes to mind is protocol
fields which have strictly-defined size. People like
to mirror their size into netlink, for better or worse.

> Is there goint to be warn in ynl gen?

Just a comment in the docs:

https://lore.kernel.org/all/20231011090859.3fc30812@kernel.org/