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

Cornelia Huck
2019-10-15T10:27:25Z

On Fri, 11 Oct 2019 16:15:52 +0800
Jason Wang <jasowang@redhat.com> wrote:

> This patch adds bus uevent support for mdev bus in order to allow
> cooperation with userspace.
>
> Signed-off-by: Jason Wang <jasowang@redhat.com>
> ---
> 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,
> };

I'd merge that into the previous patch.