net/sched: act_ct: Use pskb_network_may_pull()

To make the filler functions more generic, use network
relative skb pulling.

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index f434db7..23eba61 100644 (file)
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -195,7 +195,7 @@ tcf_ct_flow_table_fill_tuple_ipv4(struct sk_buff *skb,
        unsigned int thoff;
        struct iphdr *iph;
 
-       if (!pskb_may_pull(skb, sizeof(*iph)))
+       if (!pskb_network_may_pull(skb, sizeof(*iph)))
                return false;
 
        iph = ip_hdr(skb);
@@ -212,9 +212,9 @@ tcf_ct_flow_table_fill_tuple_ipv4(struct sk_buff *skb,
        if (iph->ttl <= 1)
                return false;
 
-       if (!pskb_may_pull(skb, iph->protocol == IPPROTO_TCP ?
-                          thoff + sizeof(struct tcphdr) :
-                          thoff + sizeof(*ports)))
+       if (!pskb_network_may_pull(skb, iph->protocol == IPPROTO_TCP ?
+                                       thoff + sizeof(struct tcphdr) :
+                                       thoff + sizeof(*ports)))
                return false;
 
        iph = ip_hdr(skb);
@@ -241,7 +241,7 @@ tcf_ct_flow_table_fill_tuple_ipv6(struct sk_buff *skb,
        struct ipv6hdr *ip6h;
        unsigned int thoff;
 
-       if (!pskb_may_pull(skb, sizeof(*ip6h)))
+       if (!pskb_network_may_pull(skb, sizeof(*ip6h)))
                return false;
 
        ip6h = ipv6_hdr(skb);
@@ -254,9 +254,9 @@ tcf_ct_flow_table_fill_tuple_ipv6(struct sk_buff *skb,
                return false;
 
        thoff = sizeof(*ip6h);
-       if (!pskb_may_pull(skb, ip6h->nexthdr == IPPROTO_TCP ?
-                          thoff + sizeof(struct tcphdr) :
-                          thoff + sizeof(*ports)))
+       if (!pskb_network_may_pull(skb, ip6h->nexthdr == IPPROTO_TCP ?
+                                       thoff + sizeof(struct tcphdr) :
+                                       thoff + sizeof(*ports)))
                return false;
 
        ip6h = ipv6_hdr(skb);