linux-kernel - Re: [PATCH 01/11] macintosh/via-pmu: Fix section mismatch warning

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Date:   Mon, 4 Jun 2018 13:44:38 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Finn Thain <fthain@...egraphics.com.au>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Michael Schmitz <schmitzmic@...il.com>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 01/11] macintosh/via-pmu: Fix section mismatch warning

Hi Finn,

On Sat, Jun 2, 2018 at 5:27 AM, Finn Thain <fthain@...egraphics.com.au> wrote:
> The pmu_init() function has the __init qualifier, but the ops struct
> that holds a pointer to it does not. This causes a build warning.
> The driver works fine because the pointer is only dereferenced early.
>
> The function is so small that there's negligible benefit from using
> the __init qualifier. Remove it to fix the warning, consistent with
> the other ADB drivers.

Some other ADB subdriver .init() and .probe() functions aren't that small.
But with the current scheme using adb_drivers_list[], they cannot be __init.
Probably the long term fix is to change the ADB subsystem from the
centralized approach of letting adb_init() call all subdrivers, to making the
subdrivers platform drivers registering with the ADB core.

> Tested-by: Stan Johnson <userm57@...oo.com>
> Signed-off-by: Finn Thain <fthain@...egraphics.com.au>

Anyway:
Reviewed-by: Geert Uytterhoeven <geert@...ux-m68k.org>

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