linux-kernel - Re: [PATCH v6 0/5] treewide: Remove I/O port accessors for HAS

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Message-Id: <724b9809-49b9-49a4-be4e-0c464c29a1f0@app.fastmail.com>
Date: Mon, 07 Oct 2024 13:33:36 +0000
From: "Arnd Bergmann" <arnd@...db.de>
To: "Niklas Schnelle" <schnelle@...ux.ibm.com>,
 "Brian Cain" <bcain@...cinc.com>, "Marcel Holtmann" <marcel@...tmann.org>,
 "Luiz Augusto von Dentz" <luiz.dentz@...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>, "Dave Airlie" <airlied@...il.com>,
 "Simona Vetter" <simona@...ll.ch>, "Dave Airlie" <airlied@...hat.com>,
 "Gerd Hoffmann" <kraxel@...hat.com>,
 "Lucas De Marchi" <lucas.demarchi@...el.com>,
 Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
 "Rodrigo Vivi" <rodrigo.vivi@...el.com>,
 "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
 "Jiri Slaby" <jirislaby@...nel.org>, "Maciej W. Rozycki" <macro@...am.me.uk>,
 "Heiko Carstens" <hca@...ux.ibm.com>
Cc: linux-kernel@...r.kernel.org, linux-hexagon@...r.kernel.org,
 linux-bluetooth@...r.kernel.org, dri-devel@...ts.freedesktop.org,
 virtualization@...ts.linux.dev, spice-devel@...ts.freedesktop.org,
 intel-xe@...ts.freedesktop.org, linux-serial@...r.kernel.org,
 Linux-Arch <linux-arch@...r.kernel.org>, "Arnd Bergmann" <arnd@...nel.org>
Subject: Re: [PATCH v6 0/5] treewide: Remove I/O port accessors for HAS_IOPORT=n

On Mon, Oct 7, 2024, at 11:40, Niklas Schnelle wrote:
> Hi All,
>
> This is a follow up in my long running effort of making inb()/outb() and
> similar I/O port accessors compile-time optional. After initially
> sending this as a treewide series with the latest revision at[0]
> we switched to per subsystem series. Now though as we're left with only
> 5 patches left I'm going back to a single series with Arnd planning
> to take this via the the asm-generic tree.
>
> This series may also be viewed for your convenience on my git.kernel.org
> tree[1] under the b4/has_ioport branch. As for compile-time vs runtime
> see Linus' reply to my first attempt[2].

This all looks good to me and I'd like to merge it all in the
asm-generic tree in the next few days, assuming nobody has any
further objections.

If something breaks, we can fix it with a patch on top.

I have a few more patches make it possible to build arm64 kernels
without CONFIG_HAS_IOPORT, but we don't need them as part of your
series and can merge them through driver trees independently.

     Arnd