linux-kernel - Re: [PATCH v2 21/22] arm64: cpuinfo: Expose MIDR_EL1 and REVIDR_EL1 to sysfs

Open Source and information security mailing list archives

Date:	Tue, 6 Oct 2015 10:09:59 +0100
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	"Suzuki K. Poulose" <suzuki.poulose@....com>
Cc:	linux-arm-kernel@...ts.infradead.org, mark.rutland@....com,
	Vladimir.Murzin@....com, steve.capper@...aro.org,
	ard.biesheuvel@...aro.org, marc.zyngier@....com,
	catalin.marinas@....com, will.deacon@....com,
	linux-kernel@...r.kernel.org, edward.nevill@...aro.org,
	aph@...hat.com, james.morse@....com, andre.przywara@....com,
	dave.martin@....com
Subject: Re: [PATCH v2 21/22] arm64: cpuinfo: Expose MIDR_EL1 and REVIDR_EL1
 to sysfs

On Mon, Oct 05, 2015 at 06:02:10PM +0100, Suzuki K. Poulose wrote:
> +static int __init cpuinfo_regs_init(void)
> +{
> +	int cpu, ret;
> +
> +	for_each_present_cpu(cpu) {
> +		struct device *dev = get_cpu_device(cpu);
> +
> +		if (!dev)
> +			return -1;

NAK.  Go figure out why, I'm too lazy to tell you.

> +
> +		ret = sysfs_create_group(&dev->kobj, &cpuregs_attr_group);
> +		if (ret)
> +			return ret;
> +	}
> +
> +	return 0;
> +}
> +
> +device_initcall(cpuinfo_regs_init);
> -- 
> 1.7.9.5
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

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