netdev - [patch net-next rfc 06/15] netdevsim: add stub netdevsim driver implementation

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Date:   Sat, 13 Apr 2019 18:21:03 +0200
From:   Jiri Pirko <jiri@...nulli.us>
To:     netdev@...r.kernel.org
Cc:     davem@...emloft.net, mlxsw@...lanox.com,
        jakub.kicinski@...ronome.com
Subject: [patch net-next rfc 06/15] netdevsim: add stub netdevsim driver implementation

From: Jiri Pirko <jiri@...lanox.com>

In order to bus probing to work correctly, register a simple  netdevsim
driver implementation.

Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
 drivers/net/netdevsim/bus.c | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/net/netdevsim/bus.c b/drivers/net/netdevsim/bus.c
index 7e83a2e856d3..5b5a9b0831a9 100644
--- a/drivers/net/netdevsim/bus.c
+++ b/drivers/net/netdevsim/bus.c
@@ -153,12 +153,31 @@ void nsim_bus_dev_del(struct nsim_bus_dev *nsim_bus_dev)
 	kfree(nsim_bus_dev);
 }
 
+static struct device_driver nsim_driver = {
+	.name		= DRV_NAME,
+	.bus		= &nsim_bus,
+	.owner		= THIS_MODULE,
+};
+
 int nsim_bus_init(void)
 {
-	return bus_register(&nsim_bus);
+	int err;
+
+	err = bus_register(&nsim_bus);
+	if (err)
+		return err;
+	err = driver_register(&nsim_driver);
+	if (err)
+		goto err_bus_unregister;
+	return 0;
+
+err_bus_unregister:
+	bus_unregister(&nsim_bus);
+	return err;
 }
 
 void nsim_bus_exit(void)
 {
+	driver_unregister(&nsim_driver);
 	bus_unregister(&nsim_bus);
 }
-- 
2.17.2