linux-kernel - Re: [PATCH net-next 3/8] lib: packing: add pack_fields() and unpack

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Message-ID: <80c591f0-ce17-4a58-9749-ed66f14ecc6c@intel.com>
Date: Thu, 24 Oct 2024 13:14:21 -0700
From: Jacob Keller <jacob.e.keller@...el.com>
To: Vladimir Oltean <vladimir.oltean@....com>
CC: Vladimir Oltean <olteanv@...il.com>, "Kitszel, Przemyslaw"
	<przemyslaw.kitszel@...el.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>,
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, "Paolo
 Abeni" <pabeni@...hat.com>, "Nguyen, Anthony L" <anthony.l.nguyen@...el.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 3/8] lib: packing: add pack_fields() and
 unpack_fields()



On 10/24/2024 9:38 AM, Jacob Keller wrote:
> I also have some thought about trying to catch this in a coccinelle
> script. That has the trade-off that its only caught by running the
> spatch/coccinelle scripts, but it would completely eliminate the need to
> modify Kbuild at all.
> 
> I'm going to try and experiment with that direction and see if its feasible.
> 

Coccinelle can't handle all of the relevant checks, since it does not
parse the macros, and can only look at the uncompiled code.

I'll have a v2 out soon with Vladimir's suggested approach.

Thanks,
Jake