Re: [PATCH v4 7/7] arm/arm64: Unexport restart handlers

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On Sun, Jul 13, 2014 at 04:30:31PM +0100, Guenter Roeck 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.
> 
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
> ---
> 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 5d191e3..25c7f00 100644
> --- a/arch/arm/kernel/process.c
> +++ b/arch/arm/kernel/process.c
> @@ -125,7 +125,6 @@ void (*pm_power_off)(void);
>  EXPORT_SYMBOL(pm_power_off);
>  
>  void (*arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd) = null_restart;
> -EXPORT_SYMBOL_GPL(arm_pm_restart);

Unless I miss something, how is this different from registering a
restart notifier from a module (blocking_notifier_chain_register is
exported)?

-- 
Catalin
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