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Message-ID: <5292E133.1040800@intel.com> Date: Mon, 25 Nov 2013 13:33:39 +0800 From: Lan Tianyu <tianyu.lan@...el.com> To: Viresh Kumar <viresh.kumar@...aro.org> CC: "Rafael J. Wysocki" <rjw@...ysocki.net>, hg197@....de, "cpufreq@...r.kernel.org" <cpufreq@...r.kernel.org>, "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] Cpufreq: Change sysfs interface cpuinfo_cur_freq access privilege On 2013年11月25日 12:30, Viresh Kumar wrote: > On 25 November 2013 08:23, Lan Tianyu <tianyu.lan@...el.com> wrote: >> Currently, cpuinfo_cur_freq is only accessible for root user while >> other cpufreq sysfs interfaces(E,G scaling_cur_freq) are available >> to ordinary user. This seems make no sense. This patch is to change >> it. > > There is nothing wrong with the code and so this is more of a design > change.. > > Probably Rafael can help us here as cpufreq_cur_freq will read stuff > directly from hardware instead of using cached value in software. I think so, too. I also tried to checking the reason of the privilege by git log but the code was there before linux kernel being migrated to git repository. > > -- > viresh > -- Best regards Tianyu Lan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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