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net/sched: act_mirred: Rename tcfm_ok_push to tcfm_mac_header_xmit and make it a bool 

'tcfm_ok_push' specifies whether a mac_len sized push is needed upon
egress to the target device (if action is performed at ingress).

Rename it to 'tcfm_mac_header_xmit' as this is actually an attribute of
the target device (and use a bool instead of int).

This allows to decouple the attribute from the action to be taken.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shmulik Ladkani 2016-10-13 09:06:41 +03:00 committed by David S. Miller
parent 4f58e6dceb
commit 165779231f
2 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
include/net/tc_act/tc_mirred.h
View File

@ -8,7 +8,7 @@ struct tcf_mirred {
struct tc_action common;
int tcfm_eaction;
int tcfm_ifindex;
int tcfm_ok_push;
bool tcfm_mac_header_xmit;
struct net_device __rcu *tcfm_dev;
struct list_head tcfm_list;
};

11
net/sched/act_mirred.c
View File

@ -60,11 +60,12 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
{
struct tc_action_net *tn = net_generic(net, mirred_net_id);
struct nlattr *tb[TCA_MIRRED_MAX + 1];
bool mac_header_xmit = false;
struct tc_mirred *parm;
struct tcf_mirred *m;
struct net_device *dev;
int ret, ok_push = 0;
bool exists = false;
int ret;
if (nla == NULL)
return -EINVAL;
@ -102,10 +103,10 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
case ARPHRD_IPGRE:
case ARPHRD_VOID:
case ARPHRD_NONE:
ok_push = 0;
mac_header_xmit = false;
break;
default:
ok_push = 1;
mac_header_xmit = true;
break;
}
} else {
@ -136,7 +137,7 @@ static int tcf_mirred_init(struct net *net, struct nlattr *nla,
dev_put(rcu_dereference_protected(m->tcfm_dev, 1));
dev_hold(dev);
rcu_assign_pointer(m->tcfm_dev, dev);
m->tcfm_ok_push = ok_push;
m->tcfm_mac_header_xmit = mac_header_xmit;
}
if (ret == ACT_P_CREATED) {
@ -181,7 +182,7 @@ static int tcf_mirred(struct sk_buff *skb, const struct tc_action *a,
goto out;
if (!(at & AT_EGRESS)) {
if (m->tcfm_ok_push)
if (m->tcfm_mac_header_xmit)
skb_push_rcsum(skb2, skb->mac_len);
}