net: remove indirect block netdev event registration

Drivers do not register to netdev events to set up indirect blocks
anymore. Remove __flow_indr_block_cb_register() and
__flow_indr_block_cb_unregister().

The frontends set up the callbacks through flow_indr_dev_setup_block()

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 52 deletions

diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c
index 1960f11477e8..185fc82c99aa 100644
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -285,25 +285,6 @@ static int nft_block_offload_cmd(struct nft_base_chain *chain,
 	return nft_block_setup(chain, &bo, cmd);
 }
 
-static void nft_indr_block_ing_cmd(struct net_device *dev,
-				   struct nft_base_chain *chain,
-				   flow_indr_block_bind_cb_t *cb,
-				   void *cb_priv,
-				   enum flow_block_command cmd)
-{
-	struct netlink_ext_ack extack = {};
-	struct flow_block_offload bo;
-
-	if (!chain)
-		return;
-
-	nft_flow_block_offload_init(&bo, dev_net(dev), cmd, chain, &extack);
-
-	cb(dev, cb_priv, TC_SETUP_BLOCK, &bo);
-
-	nft_block_setup(chain, &bo, cmd);
-}
-
 static void nft_indr_block_cleanup(struct flow_block_cb *block_cb)
 {
 	struct nft_base_chain *basechain = block_cb->indr.data;
@@ -575,24 +556,6 @@ static struct nft_chain *__nft_offload_get_chain(struct net_device *dev)
 	return NULL;
 }
 
-static void nft_indr_block_cb(struct net_device *dev,
-			      flow_indr_block_bind_cb_t *cb, void *cb_priv,
-			      enum flow_block_command cmd)
-{
-	struct net *net = dev_net(dev);
-	struct nft_chain *chain;
-
-	mutex_lock(&net->nft.commit_mutex);
-	chain = __nft_offload_get_chain(dev);
-	if (chain && chain->flags & NFT_CHAIN_HW_OFFLOAD) {
-		struct nft_base_chain *basechain;
-
-		basechain = nft_base_chain(chain);
-		nft_indr_block_ing_cmd(dev, basechain, cb, cb_priv, cmd);
-	}
-	mutex_unlock(&net->nft.commit_mutex);
-}
-
 static int nft_offload_netdev_event(struct notifier_block *this,
 				    unsigned long event, void *ptr)
 {
@@ -614,30 +577,16 @@ static int nft_offload_netdev_event(struct notifier_block *this,
 	return NOTIFY_DONE;
 }
 
-static struct flow_indr_block_entry block_ing_entry = {
-	.cb	= nft_indr_block_cb,
-	.list	= LIST_HEAD_INIT(block_ing_entry.list),
-};
-
 static struct notifier_block nft_offload_netdev_notifier = {
 	.notifier_call	= nft_offload_netdev_event,
 };
 
 int nft_offload_init(void)
 {
-	int err;
-
-	err = register_netdevice_notifier(&nft_offload_netdev_notifier);
-	if (err < 0)
-		return err;
-
-	flow_indr_add_block_cb(&block_ing_entry);
-
-	return 0;
+	return register_netdevice_notifier(&nft_offload_netdev_notifier);
 }
 
 void nft_offload_exit(void)
 {
-	flow_indr_del_block_cb(&block_ing_entry);
 	unregister_netdevice_notifier(&nft_offload_netdev_notifier);
 }