netfilter: nf_tables_offload: add nft_flow_block_offload_init()

This patch adds the nft_flow_block_offload_init() helper function to
initialize the flow_block_offload object.

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

diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c
index 70f50d3..d51728a 100644 (file)
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -246,20 +246,30 @@ static int nft_block_setup(struct nft_base_chain *basechain,
        return err;
 }
 
+static void nft_flow_block_offload_init(struct flow_block_offload *bo,
+                                       struct net *net,
+                                       enum flow_block_command cmd,
+                                       struct nft_base_chain *basechain,
+                                       struct netlink_ext_ack *extack)
+{
+       memset(bo, 0, sizeof(*bo));
+       bo->net         = net;
+       bo->block       = &basechain->flow_block;
+       bo->command     = cmd;
+       bo->binder_type = FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS;
+       bo->extack      = extack;
+       INIT_LIST_HEAD(&bo->cb_list);
+}
+
 static int nft_block_offload_cmd(struct nft_base_chain *chain,
                                 struct net_device *dev,
                                 enum flow_block_command cmd)
 {
        struct netlink_ext_ack extack = {};
-       struct flow_block_offload bo = {};
+       struct flow_block_offload bo;
        int err;
 
-       bo.net = dev_net(dev);
-       bo.block = &chain->flow_block;
-       bo.command = cmd;
-       bo.binder_type = FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS;
-       bo.extack = &extack;
-       INIT_LIST_HEAD(&bo.cb_list);
+       nft_flow_block_offload_init(&bo, dev_net(dev), cmd, chain, &extack);
 
        err = dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_BLOCK, &bo);
        if (err < 0)
@@ -275,17 +285,12 @@ static void nft_indr_block_ing_cmd(struct net_device *dev,
                                   enum flow_block_command cmd)
 {
        struct netlink_ext_ack extack = {};
-       struct flow_block_offload bo = {};
+       struct flow_block_offload bo;
 
        if (!chain)
                return;
 
-       bo.net = dev_net(dev);
-       bo.block = &chain->flow_block;
-       bo.command = cmd;
-       bo.binder_type = FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS;
-       bo.extack = &extack;
-       INIT_LIST_HEAD(&bo.cb_list);
+       nft_flow_block_offload_init(&bo, dev_net(dev), cmd, chain, &extack);
 
        cb(dev, cb_priv, TC_SETUP_BLOCK, &bo);
 
@@ -296,15 +301,10 @@ static int nft_indr_block_offload_cmd(struct nft_base_chain *chain,
                                      struct net_device *dev,
                                      enum flow_block_command cmd)
 {
-       struct flow_block_offload bo = {};
        struct netlink_ext_ack extack = {};
+       struct flow_block_offload bo;
 
-       bo.net = dev_net(dev);
-       bo.block = &chain->flow_block;
-       bo.command = cmd;
-       bo.binder_type = FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS;
-       bo.extack = &extack;
-       INIT_LIST_HEAD(&bo.cb_list);
+       nft_flow_block_offload_init(&bo, dev_net(dev), cmd, chain, &extack);
 
        flow_indr_block_call(dev, &bo, cmd);