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From: "Ahmed S. Darwish" <darwi@linutronix.de>
To: Nicolas Schier <nsc@kernel.org>
Cc: "Clark Williams" <clrkwllms@kernel.org>,
	"Steven Rostedt" <rostedt@goodmis.org>,
	"Ingo Molnar" <mingo@redhat.com>,
	"Nathan Chancellor" <nathan@kernel.org>,
	"Sebastian Andrzej Siewior" <bigeasy@linutronix.de>,
	"Frederic Weisbecker" <frederic@kernel.org>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Jonathan Corbet" <corbet@lwn.net>,
	"John Ogness" <john.ogness@linutronix.de>,
	"Derek Barbosa" <debarbos@redhat.com>,
	"Zbigniew Jędrzejewski-Szmek" <zbyszek@amutable.com>,
	"Daan De Meyer" <daan.j.demeyer@gmail.com>,
	"Luca Boccassi" <luca.boccassi@gmail.com>,
	linux-rt-devel@lists.linux.dev, debian-kernel@lists.debian.org,
	linux-kbuild@vger.kernel.org, linux-doc@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 10/10] kconfig: Introduce OVERLAY= for make checkconfig
Date: Thu, 12 Nov 2026 12:45:17 +0100	[thread overview]
Message-ID: <avWmzbh3rp7TawCn@lx-t490> (raw)
In-Reply-To: <avQNgXSWhODyc5Fc@derry.ads.avm.de>

Hi Nicolas,

On Wed, 11 Nov 2026, Nicolas Schier wrote:
>
> Please add the optional overlay arguments right here:
>
> 	$(Q)$(checkconfig) check -r "$(RULES)" -c "$(KCONFIG_CONFIG)" $(addprefix -o , "$(OVERLAY)")
>

Sure, will do.

> <bike-shedding>
> ... or let kconfig-policy-checker read the 'OVERLAY' environment
> variable itself.
> </bike-shedding>

I'm not a big fan of environment variables, especially in the sensitive
domains of auditing and validation.

I've built a lot of Linux systems with Yocto, Debian tooling, etc., and
environment variables led to some of the hardest debug sessions.

One checks CI logs, Yocto build logs, etc., and nothing directly leads to
the problem at hand.  Only to realize some hours later that it was an
environment variable some layer on top of you has erroneously set :(

Thanks!

--
Ahmed S. Darwish
Linutronix GmbH

  reply	other threads:[~2026-11-12 11:45 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-11-06  9:19 [PATCH v1 00/10] tools: Introduce a kernel configuration checker Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 01/10] kconfig-checker: Add schema for rule files Ahmed S. Darwish
2026-11-08 18:59   ` Julian Braha
2026-11-09 12:40     ` Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 02/10] kconfig-checker: Introduce PREEMPT_RT configuration rules Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 03/10] kconfig-checker: Add the configuration checker code Ahmed S. Darwish
2026-11-08 18:59   ` Julian Braha
2026-11-09 13:00     ` Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 04/10] kconfig: Introduce checkconfig target Ahmed S. Darwish
2026-11-08 18:59   ` Julian Braha
2026-11-09  0:39     ` Nathan Chancellor
2026-11-09 13:18       ` Ahmed S. Darwish
2026-11-11  6:38         ` Nicolas Schier
2026-11-12 11:32           ` Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 05/10] Documentation: Describe kconfig-checker usage and design Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 06/10] kconfig-checker: Split schema to support component reuse Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 07/10] kconfig-checker: Introduce overlays schema Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 08/10] kconfig-checker: Add support for rule overlays Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 09/10] Documentation: Describe kconfig-checker overlays Ahmed S. Darwish
2026-11-06  9:19 ` [PATCH v1 10/10] kconfig: Introduce OVERLAY= for make checkconfig Ahmed S. Darwish
2026-11-11  6:38   ` Nicolas Schier
2026-11-12 11:45     ` Ahmed S. Darwish [this message]
2026-11-08 18:59 ` [PATCH v1 00/10] tools: Introduce a kernel configuration checker Julian Braha
2026-11-09  0:37   ` Nathan Chancellor
2026-11-09 16:15     ` Ahmed S. Darwish
2026-11-09 16:52       ` Nathan Chancellor
2026-11-09 17:04         ` Ahmed S. Darwish
2026-11-09 15:49   ` Ahmed S. Darwish
2026-11-10 18:18     ` Julian Braha
2026-11-10 20:33       ` Ahmed S. Darwish
2026-11-11  6:38 ` Nicolas Schier
2026-11-12 12:36   ` Ahmed S. Darwish
2026-11-12 17:50     ` Nathan Chancellor
2026-11-12 19:14       ` Ahmed S. Darwish

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