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Date:   Wed, 30 Jan 2019 20:37:52 +0100
From:   Greg KH <gregkh@linuxfoundation.org>
To:     Dexuan Cui <decui@microsoft.com>
Cc:     Dan Williams <dan.j.williams@intel.com>,
        Ross Zwisler <zwisler@kernel.org>,
        Vishal Verma <vishal.l.verma@intel.com>,
        Dave Jiang <dave.jiang@intel.com>,
        "Rafael J. Wysocki" <rjw@rjwysocki.net>,
        Len Brown <lenb@kernel.org>,
        "linux-nvdimm@lists.01.org" <linux-nvdimm@lists.01.org>,
        "linux-acpi@vger.kernel.org" <linux-acpi@vger.kernel.org>,
        Josh Poulson <jopoulso@microsoft.com>,
        Stephen Hemminger <sthemmin@microsoft.com>,
        Haiyang Zhang <haiyangz@microsoft.com>,
        "driverdev-devel@linuxdriverproject.org" 
        <driverdev-devel@linuxdriverproject.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Michael Kelley <mikelley@microsoft.com>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: Re: [PATCH] nfit: Collect shutdown status for NVDIMM_FAMILY_HYPERV
Message-ID: <20190130193752.GA21181@kroah.com>
References: <PU1P153MB01691690696D8F83FC1872C7BF900@PU1P153MB0169.APCP153.PROD.OUTLOOK.COM>
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On Wed, Jan 30, 2019 at 06:48:40PM +0000, Dexuan Cui wrote:
> 
> See http://www.uefi.org/RFIC_LIST ("Virtual NVDIMM 0x1901"):
> "Get Unsafe Shutdown Count (Function Index 2)".
> 
> Let's expose the info to the userspace (e.g. ntctl) via sysfs.

If you add a new sysfs file, you need to add a new Documentation/ABI/
update as well :(