linux-kernel - Re: [PATCH v4 1/2] PCI: Rename "pci_dev->untrusted" to "pci_dev->poses_dma

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Message-ID: <YjmQq1DvWnJwUh6R@infradead.org>
Date:   Tue, 22 Mar 2022 02:02:35 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Rajat Jain <rajatja@...gle.com>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Len Brown <lenb@...nel.org>, linux-pci@...r.kernel.org,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bjorn Helgaas <helgaas@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rajat Jain <rajatxjain@...il.com>,
        Dmitry Torokhov <dtor@...gle.com>,
        Jesse Barnes <jsbarnes@...gle.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Pavel Machek <pavel@...x.de>,
        Oliver O'Halloran <oohall@...il.com>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        iommu@...ts.linux-foundation.org
Subject: Re: [PATCH v4 1/2] PCI: Rename "pci_dev->untrusted" to
 "pci_dev->poses_dma_risk"

On Sat, Mar 19, 2022 at 11:29:05PM -0700, Rajat Jain wrote:
> Rename the field to make it more clear, that the device can execute DMA
> attacks on the system, and thus the system may need protection from
> such attacks from this device.
> 
> No functional change intended.
> 
> Signed-off-by: Rajat Jain <rajatja@...gle.com>
> ---
> v4: Initial version, created based on comments on other patch

What a horrible name.  Why not untrusted_dma which captures the
intent much better?