mdev: Send uevents around parent device registration (1e4d09d2) · Commits · 戴 / test

drivers/vfio/mdev/mdev_core.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -143,6 +143,8 @@ int mdev_register_device(struct device dev, const struct mdev_parent_ops ops)
		{
		int ret;
		struct mdev_parent *parent;
		char *env_string = "MDEV_STATE=registered";
		char *envp[] = { env_string, NULL };

		/* check for mandatory ops */
		if (!ops \|\| !ops->create \|\| !ops->remove \|\| !ops->supported_type_groups)
		@@ -194,6 +196,8 @@ int mdev_register_device(struct device dev, const struct mdev_parent_ops ops)
		mutex_unlock(&parent_list_lock);

		dev_info(dev, "MDEV: Registered\n");
		kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);

		return 0;

		add_dev_err:
		@@ -217,6 +221,8 @@ EXPORT_SYMBOL(mdev_register_device);
		void mdev_unregister_device(struct device *dev)
		{
		struct mdev_parent *parent;
		char *env_string = "MDEV_STATE=unregistered";
		char *envp[] = { env_string, NULL };

		mutex_lock(&parent_list_lock);
		parent = __find_parent_device(dev);
		@@ -240,6 +246,9 @@ void mdev_unregister_device(struct device *dev)
		up_write(&parent->unreg_sem);

		mdev_put_parent(parent);

		/* We still have the caller's reference to use for the uevent */
		kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, envp);
		}
		EXPORT_SYMBOL(mdev_unregister_device);