linux-kernel - Re: [RFC PATCH 0/2] Helper to isolate least-significant bit

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Message-ID: <CAMuHMdXC2u9etYL36ha8hW0rd-y-u6nuTZ6vqGafaXgyTmOdDg@mail.gmail.com>
Date: Fri, 9 Jan 2026 20:11:57 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Petr Tesarik <ptesarik@...e.com>
Cc: Yury Norov <yury.norov@...il.com>, Rasmus Villemoes <linux@...musvillemoes.dk>, 
	Richard Henderson <richard.henderson@...aro.org>, Matt Turner <mattst88@...il.com>, 
	Magnus Lindholm <linmag7@...il.com>, Vineet Gupta <vgupta@...nel.org>, 
	"Maciej W. Rozycki" <macro@...am.me.uk>, Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
	Madhavan Srinivasan <maddy@...ux.ibm.com>, Michael Ellerman <mpe@...erman.id.au>, 
	Heiko Carstens <hca@...ux.ibm.com>, Vasily Gorbik <gor@...ux.ibm.com>, 
	Alexander Gordeev <agordeev@...ux.ibm.com>, Chris Zankel <chris@...kel.net>, 
	Max Filippov <jcmvbkbc@...il.com>, Patrik Jakobsson <patrik.r.jakobsson@...il.com>, 
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>, 
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
	Robin Murphy <robin.murphy@....com>, Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>, 
	Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew+netdev@...n.ch>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Paolo Abeni <pabeni@...hat.com>, Oliver Neukum <oliver@...kum.org>, Arnd Bergmann <arnd@...db.de>, 
	Kuan-Wei Chiu <visitorckw@...il.com>, Andrew Morton <akpm@...ux-foundation.org>, 
	Marcel Holtmann <marcel@...tmann.org>, Johan Hedberg <johan.hedberg@...il.com>, 
	Luiz Augusto von Dentz <luiz.dentz@...il.com>, Pablo Neira Ayuso <pablo@...filter.org>, 
	Florian Westphal <fw@...len.de>, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 0/2] Helper to isolate least-significant bit

Hi Petr,

On Fri, 9 Jan 2026 at 17:38, Petr Tesarik <ptesarik@...e.com> wrote:
> Isolation of the least significant bit can be achieved with 3 basic

least significant _set_ bit

> ALU operations which are already open-coded in various places in the
> kernel.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds