linux-kernel - Re: [PATCH] sparc: convert old cpumask API into new one

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Message-Id: <20110429003328.3D7B.A69D9226@jp.fujitsu.com>
Date:	Fri, 29 Apr 2011 00:31:48 +0900 (JST)
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	Thiago Farina <tfransosi@...il.com>
Cc:	kosaki.motohiro@...fujitsu.com,
	LKML <linux-kernel@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>, sparclinux@...r.kernel.org
Subject: Re: [PATCH] sparc: convert old cpumask API into new one

> On Thu, Apr 28, 2011 at 12:14 PM, KOSAKI Motohiro
> <kosaki.motohiro@...fujitsu.com> wrote:
> > Adapt new API. Almost change is trivial, most important change are to
> > remove following like =operator.
> >
> >  cpumask_t cpu_mask = *mm_cpumask(mm);
> 
> Could you note that you are changing this to:
> 
> cpumask_t cpu_mask;
> cpumask_copy(&cpu_mask, mm_cpumask(mm));
> 
> >  cpus_allowed = current->cpus_allowed;
> 
> And this to:
> 
> cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));

The code explain it clearly?


> > diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
> > index 5c14968..3bb2eac 100644
> > --- a/arch/sparc/kernel/of_device_64.c
> > +++ b/arch/sparc/kernel/of_device_64.c
> > @@ -622,8 +622,9 @@ static unsigned int __init build_one_device_irq(struct platform_device *op,
> >  out:
> >        nid = of_node_to_nid(dp);
> >        if (nid != -1) {
> > -               cpumask_t numa_mask = *cpumask_of_node(nid);
> > +               cpumask_t numa_mask;
> >
> please, could you remove the extra blank line?
> 
> > +               cpumask_copy(&numa_mask, cpumask_of_node(nid));
> >                irq_set_affinity(irq, &numa_mask);

Why? one blank line between declaration and statement is standard coding style.



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