linux-kernel - Re: [linux-next][PATCH] cpumask:cpumask_of

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Message-Id: <20081211130833.4FFA.KOSAKI.MOTOHIRO@jp.fujitsu.com>
Date:	Thu, 11 Dec 2008 13:09:17 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	linux-ia64 <linux-ia64@...r.kernel.org>
Cc:	kosaki.motohiro@...fujitsu.com, "Luck, Tony" <tony.luck@...el.com>,
	Rusty Russell <rusty@...tcorp.com.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>
Subject: Re: [linux-next][PATCH] cpumask:cpumask_of_node-ia64 fix

Oops, sorry.

I forgot cc to linux-ia64.


> ===
> Subject: [PATCH] cpumask:cpumask_of_node-ia64 fix
> Impact: bug fix
> 
> commit 07c636deede53ff3e96d54df0ece2c838e61951f introduce new CPU mask API and change cpu_mask variable type.
> 
> -----------------------------------------------
> -               cpumask_t cpu_mask;
> +               const struct cpumask *cpu_mask;
> --------------------------------------------------
> 
> 
> However, its change is incomplete. in build time, compiler output following type mismatch warnings.
> 
>   arch/ia64/kernel/iosapic.c:708: warning: passing argument 2 of '__cpu_clear' from incompatible pointer type
>   arch/ia64/kernel/iosapic.c:711: warning: passing argument 1 of '__cpus_weight' from incompatible pointer type
>   arch/ia64/kernel/iosapic.c:719: warning: passing argument 1 of '__first_cpu' from incompatible pointer type
>   arch/ia64/kernel/iosapic.c:720: warning: passing argument 2 of '__next_cpu' from incompatible pointer type
> 
> 
> Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
> CC: "Luck, Tony" <tony.luck@...el.com>
> CC: Rusty Russell <rusty@...tcorp.com.au>
> ---
>  arch/ia64/kernel/iosapic.c |   10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> Index: b/arch/ia64/kernel/iosapic.c
> ===================================================================
> --- a/arch/ia64/kernel/iosapic.c
> +++ b/arch/ia64/kernel/iosapic.c
> @@ -695,7 +695,7 @@ get_target_cpu (unsigned int gsi, int ir
>  #ifdef CONFIG_NUMA
>  	{
>  		int num_cpus, cpu_index, iosapic_index, numa_cpu, i = 0;
> -		const struct cpumask *cpu_mask;
> +		struct cpumask *cpu_mask;
>  
>  		iosapic_index = find_iosapic(gsi);
>  		if (iosapic_index < 0 ||
> @@ -705,10 +705,10 @@ get_target_cpu (unsigned int gsi, int ir
>  		cpu_mask = cpumask_of_node(iosapic_lists[iosapic_index].node);
>  		for_each_cpu_and(numa_cpu, cpu_mask, &domain) {
>  			if (!cpu_online(numa_cpu))
> -				cpu_clear(numa_cpu, cpu_mask);
> +				cpu_clear(numa_cpu, *cpu_mask);
>  		}
>  
> -		num_cpus = cpus_weight(cpu_mask);
> +		num_cpus = cpus_weight(*cpu_mask);
>  
>  		if (!num_cpus)
>  			goto skip_numa_setup;
> @@ -716,8 +716,8 @@ get_target_cpu (unsigned int gsi, int ir
>  		/* Use irq assignment to distribute across cpus in node */
>  		cpu_index = irq % num_cpus;
>  
> -		for (numa_cpu = first_cpu(cpu_mask) ; i < cpu_index ; i++)
> -			numa_cpu = next_cpu(numa_cpu, cpu_mask);
> +		for (numa_cpu = first_cpu(*cpu_mask) ; i < cpu_index ; i++)
> +			numa_cpu = next_cpu(numa_cpu, *cpu_mask);
>  
>  		if (numa_cpu != NR_CPUS)
>  			return cpu_physical_id(numa_cpu);
> 
> 
> --
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