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Commit 67bd0d5e authored by Pablo Neira Ayuso's avatar Pablo Neira Ayuso Committed by David S. Miller
Browse files

net: flow_offload: add flow_block_cb_{priv, incref, decref}() 



This patch completes the flow block API to introduce:

* flow_block_cb_priv() to access callback private data.
* flow_block_cb_incref() to bump reference counter on this flow block.
* flow_block_cb_decref() to decrement the reference counter.

These functions are taken from the existing tcf_block_cb_priv(),
tcf_block_cb_incref() and tcf_block_cb_decref().

Signed-off-by: default avatarPablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent da3eeb90

include/net/flow_offload.h

+4 −0
Original line number Diff line number Diff line
@@ -281,6 +281,10 @@ void flow_block_cb_free(struct flow_block_cb *block_cb); 
struct flow_block_cb *flow_block_cb_lookup(struct flow_block_offload *offload,

					   tc_setup_cb_t *cb, void *cb_ident);



void *flow_block_cb_priv(struct flow_block_cb *block_cb);

void flow_block_cb_incref(struct flow_block_cb *block_cb);

unsigned int flow_block_cb_decref(struct flow_block_cb *block_cb);



static inline void flow_block_cb_add(struct flow_block_cb *block_cb,

				     struct flow_block_offload *offload)

{

net/core/flow_offload.c

+18 −0
Original line number Diff line number Diff line
@@ -211,6 +211,24 @@ struct flow_block_cb *flow_block_cb_lookup(struct flow_block_offload *f, 
}

EXPORT_SYMBOL(flow_block_cb_lookup);



void *flow_block_cb_priv(struct flow_block_cb *block_cb)

{

	return block_cb->cb_priv;

}

EXPORT_SYMBOL(flow_block_cb_priv);



void flow_block_cb_incref(struct flow_block_cb *block_cb)

{

	block_cb->refcnt++;

}

EXPORT_SYMBOL(flow_block_cb_incref);



unsigned int flow_block_cb_decref(struct flow_block_cb *block_cb)

{

	return --block_cb->refcnt;

}

EXPORT_SYMBOL(flow_block_cb_decref);



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,