Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Tue, 15 Oct 2019 12:27:07 +0200
From:   Cornelia Huck <cohuck@redhat.com>
To:     Jason Wang <jasowang@redhat.com>
Cc:     kvm@vger.kernel.org, linux-s390@vger.kernel.org,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        intel-gfx@lists.freedesktop.org,
        intel-gvt-dev@lists.freedesktop.org, kwankhede@nvidia.com,
        alex.williamson@redhat.com, mst@redhat.com, tiwei.bie@intel.com,
        virtualization@lists.linux-foundation.org, netdev@vger.kernel.org,
        maxime.coquelin@redhat.com, cunming.liang@intel.com,
        zhihong.wang@intel.com, rob.miller@broadcom.com,
        xiao.w.wang@intel.com, haotian.wang@sifive.com,
        zhenyuw@linux.intel.com, zhi.a.wang@intel.com,
        jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com,
        rodrigo.vivi@intel.com, airlied@linux.ie, daniel@ffwll.ch,
        farman@linux.ibm.com, pasic@linux.ibm.com, sebott@linux.ibm.com,
        oberpar@linux.ibm.com, heiko.carstens@de.ibm.com,
        gor@linux.ibm.com, borntraeger@de.ibm.com, akrowiak@linux.ibm.com,
        freude@linux.ibm.com, lingshan.zhu@intel.com, idos@mellanox.com,
        eperezma@redhat.com, lulu@redhat.com, parav@mellanox.com,
        christophe.de.dinechin@gmail.com, kevin.tian@intel.com
Subject: Re: [PATCH V3 2/7] mdev: bus uevent support
Message-ID: <20191015122707.1fd52240.cohuck@redhat.com>
In-Reply-To: <20191011081557.28302-3-jasowang@redhat.com>
References: <20191011081557.28302-1-jasowang@redhat.com>
        <20191011081557.28302-3-jasowang@redhat.com>
Organization: Red Hat GmbH
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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.