Re: [PATCH v2] vfio/xe: avoid duplicate reset in xe_vfio_pci_reset_done

[Alex Williamson <alex@shazbot.org>]

On Mon, 27 Apr 2026 09:21:28 +0800
zhaoguohan@kylinos.cn wrote:

> From: GuoHan Zhao <zhaoguohan@kylinos.cn>
> 
> xe_vfio_pci_reset_done() sets deferred_reset and, when it manages to
> acquire state_mutex itself, hands the cleanup off to
> xe_vfio_pci_state_mutex_unlock().
> 
> That helper already clears deferred_reset and runs xe_vfio_pci_reset()
> before dropping the mutex. Calling xe_vfio_pci_reset() again right
> afterwards repeats the reset handling unnecessarily.
> 
> Fixes: 1f5556ec8b9e ("vfio/xe: Add device specific vfio_pci driver variant for Intel graphics")
> Signed-off-by: GuoHan Zhao <zhaoguohan@kylinos.cn>
> ---
> v2:
> - Correct the Fixes tag to point to 1f5556ec8b9e


Michał, any objection?  I'd prefer to include this with your ack.
Thanks,

Alex
 
>  drivers/vfio/pci/xe/main.c | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/drivers/vfio/pci/xe/main.c b/drivers/vfio/pci/xe/main.c
> index 4ecadbbfd86e..cbff5af385ef 100644
> --- a/drivers/vfio/pci/xe/main.c
> +++ b/drivers/vfio/pci/xe/main.c
> @@ -135,8 +135,6 @@ static void xe_vfio_pci_reset_done(struct pci_dev *pdev)
>  	}
>  	spin_unlock(&xe_vdev->reset_lock);
>  	xe_vfio_pci_state_mutex_unlock(xe_vdev);
> -
> -	xe_vfio_pci_reset(xe_vdev);
>  }
>  
>  static const struct pci_error_handlers xe_vfio_pci_err_handlers = {