1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __NET_TC_CSUM_H
3 #define __NET_TC_CSUM_H
4 
5 #include <linux/types.h>
6 #include <net/act_api.h>
7 #include <linux/tc_act/tc_csum.h>
8 
9 struct tcf_csum_params {
10 	u32 update_flags;
11 	struct rcu_head rcu;
12 };
13 
14 struct tcf_csum {
15 	struct tc_action common;
16 
17 	struct tcf_csum_params __rcu *params;
18 };
19 #define to_tcf_csum(a) ((struct tcf_csum *)a)
20 
is_tcf_csum(const struct tc_action * a)21 static inline bool is_tcf_csum(const struct tc_action *a)
22 {
23 #ifdef CONFIG_NET_CLS_ACT
24 	if (a->ops && a->ops->type == TCA_ACT_CSUM)
25 		return true;
26 #endif
27 	return false;
28 }
29 
tcf_csum_update_flags(const struct tc_action * a)30 static inline u32 tcf_csum_update_flags(const struct tc_action *a)
31 {
32 	u32 update_flags;
33 
34 	rcu_read_lock();
35 	update_flags = rcu_dereference(to_tcf_csum(a)->params)->update_flags;
36 	rcu_read_unlock();
37 
38 	return update_flags;
39 }
40 
41 #endif /* __NET_TC_CSUM_H */
42