RE: [PATCH V3 2/7] mdev: bus uevent support

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> -----Original Message-----
> From: Jason Wang <jasowang@xxxxxxxxxx>
> Sent: Friday, October 11, 2019 3:16 AM
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> eperezma@xxxxxxxxxx; lulu@xxxxxxxxxx; Parav Pandit
> <parav@xxxxxxxxxxxx>; christophe.de.dinechin@xxxxxxxxx;
> kevin.tian@xxxxxxxxx; Jason Wang <jasowang@xxxxxxxxxx>
> Subject: [PATCH V3 2/7] mdev: bus uevent support
> 
> This patch adds bus uevent support for mdev bus in order to allow
> cooperation with userspace.
> 
> Signed-off-by: Jason Wang <jasowang@xxxxxxxxxx>
> ---
>  drivers/vfio/mdev/mdev_driver.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/vfio/mdev/mdev_driver.c
> b/drivers/vfio/mdev/mdev_driver.c index b7c40ce86ee3..319d886ffaf7
> 100644
> --- a/drivers/vfio/mdev/mdev_driver.c
> +++ b/drivers/vfio/mdev/mdev_driver.c
> @@ -82,9 +82,17 @@ static int mdev_match(struct device *dev, struct
> device_driver *drv)
>  	return 0;
>  }
> 
> +static int mdev_uevent(struct device *dev, struct kobj_uevent_env *env)
> +{
> +	struct mdev_device *mdev = to_mdev_device(dev);
> +
> +	return add_uevent_var(env, "MODALIAS=mdev:c%02X", mdev-
> >class_id); }
> +
>  struct bus_type mdev_bus_type = {
>  	.name		= "mdev",
>  	.match		= mdev_match,
> +	.uevent		= mdev_uevent,
>  	.probe		= mdev_probe,
>  	.remove		= mdev_remove,
>  };
> --
> 2.19.1
Reviewed-by: Parav Pandit <parav@xxxxxxxxxxxx>





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