linux-kernel - Re: [PATCH 4/4] pci: export untrusted attribute in sysfs

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Message-ID: <CAHp75Vc6eA33cyAQH-m+yixTuHqiobg6fo7nzbbb-J6vN6qFcA@mail.gmail.com>
Date:   Thu, 18 Jun 2020 11:12:56 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Rajat Jain <rajatja@...gle.com>
Cc:     Christoph Hellwig <hch@...radead.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>, iommu@...ts.linux-foundation.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-pci <linux-pci@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Raj Ashok <ashok.raj@...el.com>,
        "Krishnakumar, Lalithambika" <lalithambika.krishnakumar@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Prashant Malani <pmalani@...gle.com>,
        Benson Leung <bleung@...gle.com>,
        Todd Broch <tbroch@...gle.com>,
        Alex Levin <levinale@...gle.com>,
        Mattias Nissler <mnissler@...gle.com>,
        Rajat Jain <rajatxjain@...il.com>,
        Bernie Keany <bernie.keany@...el.com>,
        Aaron Durbin <adurbin@...gle.com>,
        Diego Rivas <diegorivas@...gle.com>,
        Duncan Laurie <dlaurie@...gle.com>,
        Furquan Shaikh <furquan@...gle.com>,
        Jesse Barnes <jsbarnes@...gle.com>,
        Christian Kellner <christian@...lner.me>,
        Alex Williamson <alex.williamson@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Oliver O'Halloran" <oohall@...il.com>
Subject: Re: [PATCH 4/4] pci: export untrusted attribute in sysfs

On Wed, Jun 17, 2020 at 10:56 PM Rajat Jain <rajatja@...gle.com> wrote:
> On Wed, Jun 17, 2020 at 12:31 AM Christoph Hellwig <hch@...radead.org> wrote:

...

> (and likely call it "external" instead of "untrusted".

Which is not okay. 'External' to what? 'untrusted' has been carefully
chosen by the meaning of it.
What external does mean for M.2. WWAN card in my laptop? It's in ACPI
tables, but I can replace it.
This is only one example. Or if firmware of some device is altered,
and it's internal (whatever it means) is it trusted or not?

So, please leave it as is (I mean name).

-- 
With Best Regards,
Andy Shevchenko