linux-kernel - RE: [PATCH 5/7] vfio/platform: Disable virqfds on cleanup

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Date: Fri, 8 Mar 2024 07:16:02 +0000
From: "Tian, Kevin" <kevin.tian@...el.com>
To: Alex Williamson <alex.williamson@...hat.com>
CC: "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "eric.auger@...hat.com"
	<eric.auger@...hat.com>, "clg@...hat.com" <clg@...hat.com>, "Chatre,
 Reinette" <reinette.chatre@...el.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 5/7] vfio/platform: Disable virqfds on cleanup

> From: Alex Williamson <alex.williamson@...hat.com>
> Sent: Thursday, March 7, 2024 5:15 AM
> 
> @@ -321,8 +321,13 @@ void vfio_platform_irq_cleanup(struct
> vfio_platform_device *vdev)
>  {
>  	int i;
> 
> -	for (i = 0; i < vdev->num_irqs; i++)
> +	for (i = 0; i < vdev->num_irqs; i++) {
> +		int hwirq = vdev->get_irq(vdev, i);

hwirq is unused.

> +
> +		vfio_virqfd_disable(&vdev->irqs[i].mask);
> +		vfio_virqfd_disable(&vdev->irqs[i].unmask);
>  		vfio_set_trigger(vdev, i, -1, NULL);
> +	}
> 
>  	vdev->num_irqs = 0;
>  	kfree(vdev->irqs);
> --
> 2.43.2