|  | /* SPDX-License-Identifier: GPL-2.0 */ | 
|  | #ifndef __NET_TC_CSUM_H | 
|  | #define __NET_TC_CSUM_H | 
|  |  | 
|  | #include <linux/types.h> | 
|  | #include <net/act_api.h> | 
|  | #include <linux/tc_act/tc_csum.h> | 
|  |  | 
|  | struct tcf_csum_params { | 
|  | u32 update_flags; | 
|  | struct rcu_head rcu; | 
|  | }; | 
|  |  | 
|  | struct tcf_csum { | 
|  | struct tc_action common; | 
|  |  | 
|  | struct tcf_csum_params __rcu *params; | 
|  | }; | 
|  | #define to_tcf_csum(a) ((struct tcf_csum *)a) | 
|  |  | 
|  | static inline bool is_tcf_csum(const struct tc_action *a) | 
|  | { | 
|  | #ifdef CONFIG_NET_CLS_ACT | 
|  | if (a->ops && a->ops->id == TCA_ID_CSUM) | 
|  | return true; | 
|  | #endif | 
|  | return false; | 
|  | } | 
|  |  | 
|  | static inline u32 tcf_csum_update_flags(const struct tc_action *a) | 
|  | { | 
|  | u32 update_flags; | 
|  |  | 
|  | rcu_read_lock(); | 
|  | update_flags = rcu_dereference(to_tcf_csum(a)->params)->update_flags; | 
|  | rcu_read_unlock(); | 
|  |  | 
|  | return update_flags; | 
|  | } | 
|  |  | 
|  | #endif /* __NET_TC_CSUM_H */ |