ip: introduce ip_is_fragment helper inline function

There are enough instances of this:

    iph->frag_off & htons(IP_MF | IP_OFFSET)

that a helper function is probably warranted.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 8ec01391d988..34533a5d1b3a 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -121,7 +121,7 @@ static u32 flow_get_proto_src(struct sk_buff *skb)
                 if (!pskb_network_may_pull(skb, sizeof(*iph)))
                         break;
                 iph = ip_hdr(skb);
-                if (iph->frag_off & htons(IP_MF | IP_OFFSET))
+                if (ip_is_fragment(iph))
                         break;
                 poff = proto_ports_offset(iph->protocol);
                 if (poff >= 0 &&
@@ -163,7 +163,7 @@ static u32 flow_get_proto_dst(struct sk_buff *skb)
                 if (!pskb_network_may_pull(skb, sizeof(*iph)))
                         break;
                 iph = ip_hdr(skb);
-                if (iph->frag_off & htons(IP_MF | IP_OFFSET))
+                if (ip_is_fragment(iph))
                         break;
                 poff = proto_ports_offset(iph->protocol);
                 if (poff >= 0 &&