linux-kernel - Re: [PATCH v4 5/7] iommufd/vdevice: Remove struct device reference from struct vdevice

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Message-ID: <aHHIEWprY+AfJRas@Asurada-Nvidia>
Date: Fri, 11 Jul 2025 19:27:29 -0700
From: Nicolin Chen <nicolinc@...dia.com>
To: Xu Yilun <yilun.xu@...ux.intel.com>
CC: <jgg@...dia.com>, <jgg@...pe.ca>, <kevin.tian@...el.com>,
	<will@...nel.org>, <aneesh.kumar@...nel.org>, <iommu@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>, <joro@...tes.org>, <robin.murphy@....com>,
	<shuah@...nel.org>, <aik@....com>, <dan.j.williams@...el.com>,
	<baolu.lu@...ux.intel.com>, <yilun.xu@...el.com>
Subject: Re: [PATCH v4 5/7] iommufd/vdevice: Remove struct device reference
 from struct vdevice

On Wed, Jul 09, 2025 at 12:02:32PM +0800, Xu Yilun wrote:
> Remove struct device *dev from struct vdevice.
> 
> The dev pointer is the Plan B for vdevice to reference the physical
> device. As now vdev->idev is added without refcounting concern, just
> use vdev->idev->dev when needed.
> 
> Reviewed-by: Jason Gunthorpe <jgg@...dia.com>
> Reviewed-by: Lu Baolu <baolu.lu@...ux.intel.com>
> Signed-off-by: Xu Yilun <yilun.xu@...ux.intel.com>
 
Reviewed-by: Nicolin Chen <nicolinc@...dia.com>