route/tc: add internal rtnl_tc_data_peek() function
Signed-off-by: Thomas Haller <thaller@redhat.com>
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2 changed files with 14 additions and 0 deletions
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@ -114,6 +114,7 @@ extern int rtnl_tc_compare(struct nl_object *,
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struct nl_object *,
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uint32_t, int);
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void * rtnl_tc_data_peek(struct rtnl_tc *tc);
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extern void * rtnl_tc_data(struct rtnl_tc *);
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extern void * rtnl_tc_data_check(struct rtnl_tc *,
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struct rtnl_tc_ops *, int *);
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@ -1025,6 +1025,19 @@ void rtnl_tc_unregister(struct rtnl_tc_ops *ops)
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nl_list_del(&ops->to_list);
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}
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/**
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* Returns the private data of the traffic control object.
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* Contrary to rtnl_tc_data(), this returns NULL if the data is
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* not yet allocated
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* @arg tc traffic control object
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*
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* @return pointer to the private data or NULL if not allocated.
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*/
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void *rtnl_tc_data_peek(struct rtnl_tc *tc)
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{
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return tc->tc_subdata ? nl_data_get(tc->tc_subdata) : NULL;
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}
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/**
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* Return pointer to private data of traffic control object
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* @arg tc traffic control object
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