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

On 2019/10/15 下午6:27, Cornelia Huck wrote:

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.

Will do.

Thanks