From: Jiri Pirko <j...@mellanox.com>
RTNL mutex needs to be held for this function.
Safe usage of netdev_for_each_lower_dev requires that.
Signed-off-by: Jiri Pirko <j...@mellanox.com>
---
net/switchdev/switchdev.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 7a9ab90..a79ee44 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -366,6 +366,8 @@ EXPORT_SYMBOL_GPL(switchdev_port_obj_add);
* @dev: port device
* @id: object ID
* @obj: object to delete
+ *
+ * rtnl_lock must be held.
*/
int switchdev_port_obj_del(struct net_device *dev,
const struct switchdev_obj *obj)
@@ -375,6 +377,8 @@ int switchdev_port_obj_del(struct net_device *dev,
struct list_head *iter;
int err = -EOPNOTSUPP;
+ ASSERT_RTNL();
+
if (ops && ops->switchdev_port_obj_del)
return ops->switchdev_port_obj_del(dev, obj);
--
1.9.3
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