linux-kernel - Re: [PATCH v5 07/14] iommufd/viommu: Add iommufd_viommu_get_vdev

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Message-ID: <Z4GSjvNIG8WdnAVH@Asurada-Nvidia>
Date: Fri, 10 Jan 2025 13:35:10 -0800
From: Nicolin Chen <nicolinc@...dia.com>
To: "Tian, Kevin" <kevin.tian@...el.com>
CC: "jgg@...dia.com" <jgg@...dia.com>, "corbet@....net" <corbet@....net>,
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	<linux-kernel@...r.kernel.org>, "iommu@...ts.linux.dev"
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	<yi.l.liu@...el.com>, "patches@...ts.linux.dev" <patches@...ts.linux.dev>
Subject: Re: [PATCH v5 07/14] iommufd/viommu: Add iommufd_viommu_get_vdev_id
 helper

On Fri, Jan 10, 2025 at 07:07:36AM +0000, Tian, Kevin wrote:
> > From: Nicolin Chen <nicolinc@...dia.com>
> > Sent: Wednesday, January 8, 2025 1:10 AM
> > +
> > +	xa_lock(&viommu->vdevs);
> > +	xa_for_each(&viommu->vdevs, index, vdev) {
> > +		if (vdev && vdev->dev == dev) {
> > +			vdev_id = (unsigned long)vdev->id;
> > +			break;
> > +		}
> > +	}
> 
> Nit. No need to check vdev pointer as commented in last review.

Oh, I missed that. Will drop it.

> Reviewed-by: Kevin Tian <kevin.tian@...el.com>

Thanks
Nicolin