linux-kernel - Re: [PATCH] mfd: arizona: Allow building arizona MFD-core as module

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20210521150935.GL64205@ediswmail.ad.cirrus.com>
Date:   Fri, 21 May 2021 15:09:35 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Hans de Goede <hdegoede@...hat.com>
CC:     Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        <linux-kernel@...r.kernel.org>, <patches@...nsource.cirrus.com>,
        <alsa-devel@...a-project.org>
Subject: Re: [PATCH] mfd: arizona: Allow building arizona MFD-core as module

On Fri, May 21, 2021 at 03:50:23PM +0200, Hans de Goede wrote:
> There is no reason why the arizona core,irq and codec model specific
> regmap bits cannot be build as a module. All they do is export symbols
> which are used by the arizona-spi/i2c and arizona-codec modules, which
> themselves can be built as module.
> 
> Change the Kconfig and Makefile arizona bits so that the arizona MFD-core
> can be built as a module.
> 
> This is especially useful on x86 platforms with a WM5102 codec, this
> allows the arizona MFD driver necessary for the WM5102 codec to be
> enabled in generic distro-kernels without growing the base kernel-image
> size.
> 
> Note this also adds an explicit "depends on MFD_ARIZONA" to all the
> arizona codec Kconfig options. The codec drivers use functions from mfd
> arizona-core. These new depends are necessary to disallow the codec
> drivers being builtin when the arizona-core is build as a module,
> otherwise we end up with missing symbol errors when building vmlinuz.
> 
> Signed-off-by: Hans de Goede <hdegoede@...hat.com>
> ---

Acked-by: Charles Keepax <ckeepax@...nsource.cirrus.com>

Thanks,
Charles