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authorPablo Neira Ayuso <pablo@netfilter.org>2019-07-09 22:55:42 +0200
committerDavid S. Miller <davem@davemloft.net>2019-07-09 14:38:50 -0700
commitd63db30c8537ba45208c156d71125db73d0fe522 (patch)
tree36e704c2825d9d7667d3a5e5de247c0241fd8e79 /net
parent32f8c4093ac353a5f1b36cfed0ce0138faf8e15f (diff)
downloadlinux-d63db30c8537ba45208c156d71125db73d0fe522.tar.bz2
net: flow_offload: add flow_block_cb_alloc() and flow_block_cb_free()
Add a new helper function to allocate flow_block_cb objects. Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/flow_offload.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/net/core/flow_offload.c b/net/core/flow_offload.c
index 6d8187e8effc..d08148cb6953 100644
--- a/net/core/flow_offload.c
+++ b/net/core/flow_offload.c
@@ -166,6 +166,34 @@ void flow_rule_match_enc_opts(const struct flow_rule *rule,
}
EXPORT_SYMBOL(flow_rule_match_enc_opts);
+struct flow_block_cb *flow_block_cb_alloc(struct net *net, tc_setup_cb_t *cb,
+ void *cb_ident, void *cb_priv,
+ void (*release)(void *cb_priv))
+{
+ struct flow_block_cb *block_cb;
+
+ block_cb = kzalloc(sizeof(*block_cb), GFP_KERNEL);
+ if (!block_cb)
+ return ERR_PTR(-ENOMEM);
+
+ block_cb->cb = cb;
+ block_cb->cb_ident = cb_ident;
+ block_cb->cb_priv = cb_priv;
+ block_cb->release = release;
+
+ return block_cb;
+}
+EXPORT_SYMBOL(flow_block_cb_alloc);
+
+void flow_block_cb_free(struct flow_block_cb *block_cb)
+{
+ if (block_cb->release)
+ block_cb->release(block_cb->cb_priv);
+
+ kfree(block_cb);
+}
+EXPORT_SYMBOL(flow_block_cb_free);
+
int flow_block_cb_setup_simple(struct flow_block_offload *f,
struct list_head *driver_block_list,
tc_setup_cb_t *cb, void *cb_ident, void *cb_priv,