[patch net-next 10/11] net: devlink: disallow port_attrs_set() to be called before register

[Jiri Pirko <jiri@resnulli.us>]

From: Jiri Pirko <jiri@mellanox.com>

Since the port attributes are static and cannot change during the port
lifetime, WARN_ON if some driver calls it after registration. Also, no
need to call notifications as it is noop anyway due to check of
devlink_port->registered there.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
---
 net/core/devlink.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/core/devlink.c b/net/core/devlink.c
index 98ca788ffd97..f77a68f72d14 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -5425,12 +5425,13 @@ void devlink_port_attrs_set(struct devlink_port *devlink_port,
 {
 	struct devlink_port_attrs *attrs = &devlink_port->attrs;
 
+	if (WARN_ON(devlink_port->registered))
+		return;
 	attrs->set = true;
 	attrs->flavour = flavour;
 	attrs->port_number = port_number;
 	attrs->split = split;
 	attrs->split_subport_number = split_subport_number;
-	devlink_port_notify(devlink_port, DEVLINK_CMD_PORT_NEW);
 }
 EXPORT_SYMBOL_GPL(devlink_port_attrs_set);
 
-- 
2.17.2