linux-kernel - Re: [PATCH v2 20/29] nios2: Cpuinfo handling

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Message-ID: <7103938.6xzUh5tnai@wuerfel>
Date:	Tue, 15 Jul 2014 11:47:28 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Ley Foon Tan <lftan@...era.com>
Cc:	linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-doc@...r.kernel.org, lftan.linux@...il.com,
	cltang@...esourcery.com
Subject: Re: [PATCH v2 20/29] nios2: Cpuinfo handling

On Tuesday 15 July 2014 16:45:47 Ley Foon Tan wrote:
> +static void *cpuinfo_start(struct seq_file *m, loff_t *pos)
> +{
> +       unsigned long i = *pos;
> +
> +       return i < num_possible_cpus() ? (void *) (i + 1) : NULL;
> +}
> +
> +static void *cpuinfo_next(struct seq_file *m, void *v, loff_t *pos)
> +{
> +       ++*pos;
> +       return cpuinfo_start(m, pos);
> +}

Do you actually have SMP support?

> +const struct seq_operations cpuinfo_op = {
> +       .start  = cpuinfo_start,
> +       .next   = cpuinfo_next,
> +       .stop   = cpuinfo_stop,
> +       .show   = show_cpuinfo
> +};

If not, you can use single_start/next/stop here rather than defining your own.

	Arnd
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