linux-kernel - Re: [PATCH 1/3] intel_idle: changing the continue to break in intel_idle_cpu

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Date:	Sat, 09 Mar 2013 04:01:06 +0100
From:	Daniel Lezcano <daniel.lezcano@...aro.org>
To:	Chuansheng Liu <chuansheng.liu@...el.com>
CC:	lenb@...nel.org, len.brown@...el.com, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] intel_idle: changing the continue to break in intel_idle_cpu_init()

On 03/08/2013 04:03 PM, Chuansheng Liu wrote:
> 
> According to commit e022e7eb9, the .enter == NULL is the last one in
> state_tables[].
> 
> So just like intel_idle_cpuidle_driver_init(), in case of .enter == NULL,
> breaking the for(;;) loop directly.
> 
> Signed-off-by: liu chuansheng <chuansheng.liu@...el.com>
> ---

Sounds good.

Acked-by: Daniel Lezcano <daniel.lezcano@...aro.org>

>  drivers/idle/intel_idle.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
> index 5d66750..17c9cf9 100644
> --- a/drivers/idle/intel_idle.c
> +++ b/drivers/idle/intel_idle.c
> @@ -610,7 +610,7 @@ static int intel_idle_cpu_init(int cpu)
>  		int num_substates, mwait_hint, mwait_cstate, mwait_substate;
>  
>  		if (cpuidle_state_table[cstate].enter == NULL)
> -			continue;
> +			break;
>  
>  		if (cstate + 1 > max_cstate) {
>  			printk(PREFIX "max_cstate %d reached\n", max_cstate);
> 


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