net: Add skb_unclone() helper function.

[~andy/linux] / net / sched / act_ipt.c

diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index 58fb3c7aab9eea8a0e65851948dd3d81da4fe3b8..e0f6de64afeca84c5400603672b4b84a11cf643d 100644 (file)
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -102,7 +102,7 @@ static const struct nla_policy ipt_policy[TCA_IPT_MAX + 1] = {
        [TCA_IPT_TARG]  = { .len = sizeof(struct xt_entry_target) },
 };
 
-static int tcf_ipt_init(struct nlattr *nla, struct nlattr *est,
+static int tcf_ipt_init(struct net *net, struct nlattr *nla, struct nlattr *est,
                        struct tc_action *a, int ovr, int bind)
 {
        struct nlattr *tb[TCA_IPT_MAX + 1];
@@ -207,10 +207,8 @@ static int tcf_ipt(struct sk_buff *skb, const struct tc_action *a,
        struct tcf_ipt *ipt = a->priv;
        struct xt_action_param par;
 
-       if (skb_cloned(skb)) {
-               if (pskb_expand_head(skb, 0, 0, GFP_ATOMIC))
-                       return TC_ACT_UNSPEC;
-       }
+       if (skb_unclone(skb, GFP_ATOMIC))
+               return TC_ACT_UNSPEC;
 
        spin_lock(&ipt->tcf_lock);