linux-kernel - Re: [PATCH v4 07/14] arm64: Add support for suppressing warning backtraces

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Message-ID: <fc197abf-e65a-439f-9d35-83f4665519f3@stanley.mountain>
Date: Wed, 19 Mar 2025 13:20:10 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Christophe Leroy <christophe.leroy@...roup.eu>
Cc: Will Deacon <will@...nel.org>,
	Alessandro Carminati <acarmina@...hat.com>,
	linux-kselftest@...r.kernel.org, David Airlie <airlied@...il.com>,
	Arnd Bergmann <arnd@...db.de>,
	Maíra Canal <mcanal@...lia.com>,
	Kees Cook <keescook@...omium.org>,
	Daniel Diaz <daniel.diaz@...aro.org>,
	David Gow <davidgow@...gle.com>,
	Arthur Grillo <arthurgrillo@...eup.net>,
	Brendan Higgins <brendan.higgins@...ux.dev>,
	Naresh Kamboju <naresh.kamboju@...aro.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Maxime Ripard <mripard@...nel.org>,
	Ville Syrjälä <ville.syrjala@...ux.intel.com>,
	Daniel Vetter <daniel@...ll.ch>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Guenter Roeck <linux@...ck-us.net>,
	Alessandro Carminati <alessandro.carminati@...il.com>,
	Jani Nikula <jani.nikula@...el.com>,
	dri-devel@...ts.freedesktop.org, kunit-dev@...glegroups.com,
	linux-arch@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	linux-riscv@...ts.infradead.org, linux-s390@...r.kernel.org,
	linux-sh@...r.kernel.org, loongarch@...ts.linux.dev, x86@...nel.org,
	Linux Kernel Functional Testing <lkft@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>
Subject: Re: [PATCH v4 07/14] arm64: Add support for suppressing warning
 backtraces

On Wed, Mar 19, 2025 at 09:05:27AM +0100, Christophe Leroy wrote:
> 
> Doesn't sparse and/or checkpatch complain about 0 being used in lieu of NULL
> ?

Sparse does have a "Using plain integer as NULL pointer" warning, yes.

I can't apply this patchset and I haven't been following the conversation
closely (plus I'm pretty stupid as well) so I'm not sure if it will
trigger here...

regards,
dan carpenter