linux-kernel - Re: [PATCH] slqb: A not quite so trivial warning

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Date:	Sun, 08 Nov 2009 13:39:13 +0200
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Alan Cox <alan@...ux.intel.com>
CC:	mel@....ul.fi, linux-kernel@...r.kernel.org,
	Nick Piggin <npiggin@...e.de>, Tejun Heo <tj@...nel.org>
Subject: Re: [PATCH] slqb: A not quite so trivial warning

Hi Alan,

Alan Cox wrote:
> mm/slqb.c:2773: warning: initialization from incompatible pointer type
> 
> Variable scope...
> 
> Signed-off-by: Alan Cox <alan@...ux.intel.com>

I don't see this warning in my tree. Is this coming from linux-next? Did 
someone change DEFINE_PER_CPU not to prefix the variable name with 
"per_cpu__"?

			Pekka

> ---
> 
>  mm/slqb.c |    8 ++++----
>  1 files changed, 4 insertions(+), 4 deletions(-)
> 
> 
> diff --git a/mm/slqb.c b/mm/slqb.c
> index e745d9a..fddcf85 100644
> --- a/mm/slqb.c
> +++ b/mm/slqb.c
> @@ -2770,16 +2770,16 @@ static DEFINE_PER_CPU(struct delayed_work, cache_trim_work);
>  
>  static void __cpuinit start_cpu_timer(int cpu)
>  {
> -	struct delayed_work *cache_trim_work = &per_cpu(cache_trim_work, cpu);
> +	struct delayed_work *lcache_trim_work = &per_cpu(cache_trim_work, cpu);
>  
>  	/*
>  	 * When this gets called from do_initcalls via cpucache_init(),
>  	 * init_workqueues() has already run, so keventd will be setup
>  	 * at that time.
>  	 */
> -	if (keventd_up() && cache_trim_work->work.func == NULL) {
> -		INIT_DELAYED_WORK(cache_trim_work, cache_trim_worker);
> -		schedule_delayed_work_on(cpu, cache_trim_work,
> +	if (keventd_up() && lcache_trim_work->work.func == NULL) {
> +		INIT_DELAYED_WORK(lcache_trim_work, cache_trim_worker);
> +		schedule_delayed_work_on(cpu, lcache_trim_work,
>  					__round_jiffies_relative(HZ, cpu));
>  	}
>  }
> 

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