netdev - [RFC PATCH 5/7] net: tc: helper functions to query action types

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Message-ID: <20160201015151.13871.91135.stgit@john-Precision-Tower-5810>
Date:	Sun, 31 Jan 2016 17:51:51 -0800
From:	John Fastabend <john.fastabend@...il.com>
To:	anjali.singhai@...el.com, jesse.brandeburg@...el.com,
	jhs@...atatu.com
Cc:	ast@...com, donald.c.skidmore@...el.com, horms@...ge.net.au,
	netdev@...r.kernel.org, tgraf@...g.ch, davem@...emloft.net
Subject: [RFC PATCH 5/7] net: tc: helper functions to query action types

This is a helper function drivers can use to learn if the
action type is a drop action.

Signed-off-by: John Fastabend <john.r.fastabend@...el.com>
---
 include/net/tc_act/tc_gact.h |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/net/tc_act/tc_gact.h b/include/net/tc_act/tc_gact.h
index 592a6bc..3fee3e9 100644
--- a/include/net/tc_act/tc_gact.h
+++ b/include/net/tc_act/tc_gact.h
@@ -2,6 +2,7 @@
 #define __NET_TC_GACT_H
 
 #include <net/act_api.h>
+#include <linux/tc_act/tc_gact.h>
 
 struct tcf_gact {
 	struct tcf_common	common;
@@ -15,4 +16,17 @@ struct tcf_gact {
 #define to_gact(a) \
 	container_of(a->priv, struct tcf_gact, common)
 
+static inline bool is_tcf_gact_dropped(const struct tc_action *a)
+{
+	struct tcf_gact *gact;
+
+	if (a->ops && a->ops->type != TCA_ACT_GACT)
+		return false;
+
+	gact = a->priv;
+	if (gact->tcf_action == TC_ACT_SHOT)
+		return true;
+
+	return false;
+}
 #endif /* __NET_TC_GACT_H */