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 int action; 11 u32 update_flags; 12 struct rcu_head rcu; 13 }; 14 15 struct tcf_csum { 16 struct tc_action common; 17 18 struct tcf_csum_params __rcu *params; 19 }; 20 #define to_tcf_csum(a) ((struct tcf_csum *)a) 21 22 static inline bool is_tcf_csum(const struct tc_action *a) 23 { 24 #ifdef CONFIG_NET_CLS_ACT 25 if (a->ops && a->ops->type == TCA_ACT_CSUM) 26 return true; 27 #endif 28 return false; 29 } 30 31 static inline u32 tcf_csum_update_flags(const struct tc_action *a) 32 { 33 u32 update_flags; 34 35 rcu_read_lock(); 36 update_flags = rcu_dereference(to_tcf_csum(a)->params)->update_flags; 37 rcu_read_unlock(); 38 39 return update_flags; 40 } 41 42 #endif /* __NET_TC_CSUM_H */ 43