linux-kernel - Re: [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as global functions

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Message-ID: <20120810094141.GA17891@localhost.localdomain>
Date:	Fri, 10 Aug 2012 17:41:41 +0800
From:	Zhao Chenhui <chenhui.zhao@...escale.com>
To:	<linuxppc-dev@...ts.ozlabs.org>, <galak@...nel.crashing.org>
CC:	<linux-kernel@...r.kernel.org>, <leoli@...escale.com>
Subject: Re: [PATCH 3/4] cpu: export cpu hotplug disable/enable functions as
 global functions

On Tue, Aug 07, 2012 at 04:43:25PM +0800, Zhao Chenhui wrote:
> The cpufreq driver of mpc85xx will disable/enable cpu hotplug temporarily.
> Therefore, the related functions should be exported.
> 
> Signed-off-by: Zhao Chenhui <chenhui.zhao@...escale.com>
> ---
>  include/linux/cpu.h |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/cpu.h b/include/linux/cpu.h
> index ce7a074..df8f73d 100644
> --- a/include/linux/cpu.h
> +++ b/include/linux/cpu.h
> @@ -146,6 +146,8 @@ void notify_cpu_starting(unsigned int cpu);
>  extern void cpu_maps_update_begin(void);
>  extern void cpu_maps_update_done(void);
>  
> +extern void cpu_hotplug_disable_before_freeze(void);
> +extern void cpu_hotplug_enable_after_thaw(void);
>  #else	/* CONFIG_SMP */
>  
>  #define cpu_notifier(fn, pri)	do { (void)(fn); } while (0)
> @@ -167,6 +169,8 @@ static inline void cpu_maps_update_done(void)
>  {
>  }
>  
> +static inline void cpu_hotplug_disable_before_freeze(void)	{}
> +static inline void cpu_hotplug_enable_after_thaw(void)	{}
>  #endif /* CONFIG_SMP */
>  extern struct bus_type cpu_subsys;
>  
> -- 
> 1.6.4.1
> 

Hi kumar,

I will not use these API in the 4/4 patch. please ignore this patch.

-Chenhui

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