linux-kernel - Re: [PATCH] interconnect: Disallow interconnect core to be built as a module

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Message-ID: <CAOCOHw4ri6ikRpkJWtAdaPQiMhdKMrdNciqQ8YNaXR+ApSnAew@mail.gmail.com>
Date:   Thu, 12 Sep 2019 09:33:27 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     Georgi Djakov <georgi.djakov@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] interconnect: Disallow interconnect core to be built as a module

On Thu, Aug 29, 2019 at 1:07 AM Viresh Kumar <viresh.kumar@...aro.org> wrote:
>
> Building individual drivers as modules is fine but allowing a core
> framework to be built as a module makes it really complex and should be
> avoided.
>
> Whatever uses the interconnect core APIs must also be built as a module
> if interconnect core is built as module, else we will see compilation
> failures.
>
> If another core framework (like cpufreq, clk, etc), that can't be built
> as module, needs to use interconnect APIs then we will start seeing
> compilation failures with allmodconfig configurations as the symbols
> (like of_icc_get()) used in other frameworks will not be available in
> the built-in image.
>
> Disallow the interconnect core to be built as a module to avoid all
> these issues.
>

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
> ---
>  drivers/interconnect/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/interconnect/Kconfig b/drivers/interconnect/Kconfig
> index bfa4ca3ab7a9..b6ea8f0a6122 100644
> --- a/drivers/interconnect/Kconfig
> +++ b/drivers/interconnect/Kconfig
> @@ -1,6 +1,6 @@
>  # SPDX-License-Identifier: GPL-2.0-only
>  menuconfig INTERCONNECT
> -       tristate "On-Chip Interconnect management support"
> +       bool "On-Chip Interconnect management support"
>         help
>           Support for management of the on-chip interconnects.
>
> --
> 2.21.0.rc0.269.g1a574e7a288b
>