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net/act_skbedit: Utility functions for mark action

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Enable device drivers to query the action, if and only if is a mark
action and what value to use for marking.

Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Amir Vadai <amir@vadai.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amir Vadai 2016-03-08 12:42:32 +02:00 committed by David S. Miller
parent 00175aec94
commit 519afb1813
1 changed files with 16 additions and 0 deletions
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16
include/net/tc_act/tc_skbedit.h
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@ -20,6 +20,7 @@
#define __NET_TC_SKBEDIT_H
#include <net/act_api.h>
#include <linux/tc_act/tc_skbedit.h>
struct tcf_skbedit {
struct tcf_common common;
@ -32,4 +33,19 @@ struct tcf_skbedit {
#define to_skbedit(a) \
container_of(a->priv, struct tcf_skbedit, common)
/* Return true iff action is mark */
static inline bool is_tcf_skbedit_mark(const struct tc_action *a)
{
#ifdef CONFIG_NET_CLS_ACT
if (a->ops && a->ops->type == TCA_ACT_SKBEDIT)
return to_skbedit(a)->flags == SKBEDIT_F_MARK;
#endif
return false;
}
static inline u32 tcf_skbedit_mark(const struct tc_action *a)
{
return to_skbedit(a)->mark;
}
#endif /* __NET_TC_SKBEDIT_H */