linux-kernel - firmware: dmi-sysfs: why is the access mode of dmi sysfs entries restricted to 0400?

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Message-ID: <42bb2db8-66e0-3df4-75b7-98b2b2bcfca8@huawei.com>
Date:   Wed, 4 Dec 2019 15:31:22 +0800
From:   Guoheyi <guoheyi@...wei.com>
To:     Mike Waychison <mikew@...gle.com>
CC:     <linux-kernel@...r.kernel.org>,
        wanghaibin 00208455 <wanghaibin.wang@...wei.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>
Subject: firmware: dmi-sysfs: why is the access mode of dmi sysfs entries
 restricted to 0400?

Hi,

Why is the access mode of dmi sysfs entries restricted to 0400? Is it 
for security concern? If it is, which information do we consider as privacy?

We would like to fetch CPU information from non-root application, is 
there feasible way to do that?

Any advice is appreciated.

Thanks,

Heyi