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net, sched: add skb_at_tc_ingress helper

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Add a skb_at_tc_ingress() as this will be needed elsewhere as well and
can hide the ugly ifdef.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Borkmann 2016-01-07 15:50:22 +01:00 committed by David S. Miller
parent 4156afafcc
commit fdc5432a7b
2 changed files with 10 additions and 5 deletions
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9
include/net/sch_generic.h
View file

@ -407,6 +407,15 @@ bool tcf_destroy(struct tcf_proto *tp, bool force);
void tcf_destroy_chain(struct tcf_proto __rcu **fl);
int skb_do_redirect(struct sk_buff *);
static inline bool skb_at_tc_ingress(const struct sk_buff *skb)
{
#ifdef CONFIG_NET_CLS_ACT
return G_TC_AT(skb->tc_verd) & AT_INGRESS;
#else
return false;
#endif
}
/* Reset all TX qdiscs greater then index of a device. */
static inline void qdisc_reset_all_tx_gt(struct net_device *dev, unsigned int i)
{

6
net/sched/cls_bpf.c
View file

@ -79,12 +79,8 @@ static int cls_bpf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
struct tcf_result *res)
{
struct cls_bpf_head *head = rcu_dereference_bh(tp->root);
bool at_ingress = skb_at_tc_ingress(skb);
struct cls_bpf_prog *prog;
#ifdef CONFIG_NET_CLS_ACT
bool at_ingress = G_TC_AT(skb->tc_verd) & AT_INGRESS;
#else
bool at_ingress = false;
#endif
int ret = -1;
if (unlikely(!skb_mac_header_was_set(skb)))