linux-kernel - Re: [PATCH v7 08/11] arm/arm64: Unexport restart handlers

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Date:	Thu, 4 Dec 2014 14:36:27 +0100
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Russell King <linux@....linux.org.uk>,
	Wim Van Sebroeck <wim@...ana.be>,
	Catalin Marinas <catalin.marinas@....com>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	Linux Watchdog Mailing List <linux-watchdog@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>,
	Linux PM list <linux-pm@...r.kernel.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	Tomasz Figa <t.figa@...sung.com>,
	Randy Dunlap <rdunlap@...radead.org>,
	Will Deacon <will.deacon@....com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Jonas Jensen <jonas.jensen@...il.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Ingo Molnar <mingo@...nel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Heiko Stuebner <heiko@...ech.de>
Subject: Re: [PATCH v7 08/11] arm/arm64: Unexport restart handlers

Hi Günther,

On Wed, Aug 20, 2014 at 2:45 AM, Guenter Roeck <linux@...ck-us.net> wrote:
> Implementing a restart handler in a module don't make sense
> as there would be no guarantee that the module is loaded when
> a restart is needed. Unexport arm_pm_restart to ensure that
> no one gets the idea to do it anyway.

Why not? I was just going to do that, but I got greeted by:

ERROR: "arm_pm_restart" [drivers/power/reset/rmobile-reset.ko] undefined!

So now we have to make sure all reset drivers for a zillion different
hardware devices are builtin, and can't be modular?

> Signed-off-by: Guenter Roeck <linux@...ck-us.net>
> Acked-by: Catalin Marinas <catalin.marinas@....com>
> Acked-by: Heiko Stuebner <heiko@...ech.de>
> ---
> v7: No change
> v6: No change
> v5: No change
> v4: No change
> v3: No change
> v2: No change
>
>  arch/arm/kernel/process.c   | 1 -
>  arch/arm64/kernel/process.c | 1 -
>  2 files changed, 2 deletions(-)
>
> diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c
> index ea279f7..250b6f6 100644
> --- a/arch/arm/kernel/process.c
> +++ b/arch/arm/kernel/process.c
> @@ -121,7 +121,6 @@ void (*pm_power_off)(void);
>  EXPORT_SYMBOL(pm_power_off);
>
>  void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
> -EXPORT_SYMBOL_GPL(arm_pm_restart);
>
>  /*
>   * This is our default idle handler.
> diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
> index 0d3fb9f..398ab05 100644
> --- a/arch/arm64/kernel/process.c
> +++ b/arch/arm64/kernel/process.c
> @@ -98,7 +98,6 @@ void (*pm_power_off)(void);
>  EXPORT_SYMBOL_GPL(pm_power_off);
>
>  void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
> -EXPORT_SYMBOL_GPL(arm_pm_restart);
>
>  /*
>   * This is our default idle handler.

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
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