netfilter: nft_flow_offload: no need to flush entries on module removal

nft_flow_offload module removal does not require to flush existing
flowtables, it is valid to remove this module while keeping flowtables
around.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
index 1739ff8..e5c45c7 100644 (file)
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -247,14 +247,8 @@ register_expr:
 
 static void __exit nft_flow_offload_module_exit(void)
 {
-       struct net *net;
-
        nft_unregister_expr(&nft_flow_offload_type);
        unregister_netdevice_notifier(&flow_offload_netdev_notifier);
-       rtnl_lock();
-       for_each_net(net)
-               nft_flow_table_iterate(net, nft_flow_offload_iterate_cleanup, NULL);
-       rtnl_unlock();
 }
 
 module_init(nft_flow_offload_module_init);