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

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On 2019/10/15 下午6:27, Cornelia Huck wrote:
On Fri, 11 Oct 2019 16:15:52 +0800
Jason Wang <jasowang@xxxxxxxxxx> wrote:

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,
  };
I'd merge that into the previous patch.


Will do.

Thanks





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