linux-kernel - Re: [PATCH] drivers: acpi: add opt-out of Apple-specific property parsing

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Message-ID: <CAJZ5v0j1UEHK65AR7xqZKzFYbn=MRhB9c0vL5Sdh0APSZZRC8A@mail.gmail.com>
Date:   Thu, 3 Dec 2020 19:20:31 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     "Enrico Weigelt, metux IT consult" <info@...ux.net>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH] drivers: acpi: add opt-out of Apple-specific property parsing

On Thu, Dec 3, 2020 at 6:47 PM Enrico Weigelt, metux IT consult
<info@...ux.net> wrote:
>
> Most x86 machines aren't Apple machines, especially VMs.
> Therefore allow opt-out, making the kernel a few KBs smaller,
> eg. for embedded or high-density VMs.
>
> Signed-off-by: Enrico Weigelt, metux IT consult <info@...ux.net>
> ---
>  drivers/acpi/Kconfig    | 9 +++++++++
>  drivers/acpi/Makefile   | 2 +-
>  drivers/acpi/internal.h | 2 +-
>  3 files changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index edf1558c1105..cc47de4f2b18 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -79,6 +79,15 @@ config ACPI_DEBUGGER_USER
>
>  endif
>
> +config ACPI_APPLE
> +       bool "Apple ACPI properties support"
> +       default y if X86
> +       help
> +         Extraction of Apple-specific ACPI properties.
> +
> +         Say N if you're sure the kernel won't be used on an Apple machine
> +         and wanna save a few kb of memory. (embedded or high-density VMs)

Do you mean bits of bytes here?

If the latter, please spell this as KB.

Thanks!