net: devlink: enable parallel ops on netlink interface

As the devlink_mutex was removed and all devlink instances are protected
individually by devlink->lock mutex, allow the netlink ops to run
in parallel and therefore allow user to execute commands on multiple
devlink instances simultaneously.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/devlink.c

@@ -9505,6 +9505,7 @@ static struct genl_family devlink_nl_family __ro_after_init = {
 	.maxattr	= DEVLINK_ATTR_MAX,
 	.policy = devlink_nl_policy,
 	.netnsok	= true,
+	.parallel_ops	= true,
 	.pre_doit	= devlink_nl_pre_doit,
 	.post_doit	= devlink_nl_post_doit,
 	.module		= THIS_MODULE,