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From: Mika Westerberg <mika.westerberg@intel.com>
To: Rajat Jain <rajatja@google.com>
Cc: tbroch@google.com, pmalani@google.com,
	Ashok Raj <ashok.raj@intel.com>,
	rajatxjain@gmail.com, zsm@google.com,
	linux-kernel@vger.kernel.org,
	lalithambika.krishnakumar@intel.com,
	iommu@lists.linux-foundation.org, mnissler@google.com,
	bleung@google.com, levinale@google.com,
	David Woodhouse <dwmw2@infradead.org>
Subject: Re: [PATCH v3] iommu/vt-d: Don't apply gfx quirks to untrusted devices
Date: Wed, 3 Jun 2020 08:30:08 +0300	[thread overview]
Message-ID: <20200603053008.GR247495@lahna.fi.intel.com> (raw)
In-Reply-To: <20200602232602.156049-1-rajatja@google.com>

On Tue, Jun 02, 2020 at 04:26:02PM -0700, Rajat Jain wrote:
> +static bool risky_device(struct pci_dev *pdev)
> +{
> +	if (pdev->untrusted) {
> +		pci_warn(pdev,
> +			 "Skipping IOMMU quirk for dev (%04X:%04X) on untrusted"
> +			 " PCI link. Please check with your BIOS/Platform"
> +			 " vendor about this\n", pdev->vendor, pdev->device);

You should not break user visible strings like this. It makes grepping
for them harder (see also CodingStyle). You can write it like this instead:

	pci_info(pdev, "Skipping IOMMU quirk for dev (%04X:%04X) on untrusted PCI link\n",
		 pdev->vendor, pdev->device);
	pci_info(pdev, "Please check with your BIOS/Platform vendor about this\n");

Also I guess pci_info() might be better here after all. Your call :)

Rest of the patch looks good to me.
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  parent reply	other threads:[~2020-06-03  5:30 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-02 23:26 [PATCH v3] iommu/vt-d: Don't apply gfx quirks to untrusted devices Rajat Jain via iommu
2020-06-02 23:28 ` Raj, Ashok
2020-06-02 23:49 ` Prashant Malani via iommu
2020-06-03  0:23   ` Rajat Jain
2020-06-03  0:32     ` Prashant Malani via iommu
2020-06-03  5:30 ` Mika Westerberg [this message]
2020-06-03 13:03   ` Rajat Jain via iommu

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