linux-kernel - Re: [PATCH v7 2/5] bits: introduce fixed-type BIT

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z-FhHRWtaYgTbILa@smile.fi.intel.com>
Date: Mon, 24 Mar 2025 15:41:49 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: mailhol.vincent@...adoo.fr
Cc: Yury Norov <yury.norov@...il.com>,
	Lucas De Marchi <lucas.demarchi@...el.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
	Rodrigo Vivi <rodrigo.vivi@...el.com>,
	Tvrtko Ursulin <tursulin@...ulin.net>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org,
	Andi Shyti <andi.shyti@...ux.intel.com>,
	David Laight <David.Laight@...lab.com>,
	Jani Nikula <jani.nikula@...el.com>
Subject: Re: [PATCH v7 2/5] bits: introduce fixed-type BIT_U*()

On Sat, Mar 22, 2025 at 06:23:13PM +0900, Vincent Mailhol via B4 Relay wrote:
> From: Lucas De Marchi <lucas.demarchi@...el.com>
> 
> Implement fixed-type BIT_U*() to help drivers add stricter checks,
> like it was done for GENMASK_U*().

...

> +/*
> + * Fixed-type variants of BIT(), with additional checks like GENMASK_TYPE(). The
> + * following examples generate compiler warnings due to shift-count-overflow:

"...due to -Wshift-count-overflow:" ?

Same idea — if you need a new version, since it's just a nit-pick.

> + *
> + * - BIT_U8(8)
> + * - BIT_U32(-1)
> + * - BIT_U32(40)
> + */

-- 
With Best Regards,
Andy Shevchenko