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>
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 8ec0139..34533a5 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -121,7 +121,7 @@
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 @@
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 &&
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index 402c44b..ed691b1 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -167,7 +167,7 @@
dst = &nhptr->daddr;
protocol = nhptr->protocol;
xprt = ((u8 *)nhptr) + (nhptr->ihl<<2);
- if (nhptr->frag_off & htons(IP_MF | IP_OFFSET))
+ if (ip_is_fragment(nhptr))
return -1;
#endif
diff --git a/net/sched/sch_choke.c b/net/sched/sch_choke.c
index 06afbae..3422b25 100644
--- a/net/sched/sch_choke.c
+++ b/net/sched/sch_choke.c
@@ -181,7 +181,7 @@
ip1->saddr != ip2->saddr || ip1->daddr != ip2->daddr)
return false;
- if ((ip1->frag_off | ip2->frag_off) & htons(IP_MF | IP_OFFSET))
+ if (ip_is_fragment(ip1) | ip_is_fragment(ip2))
ip_proto = 0;
off1 += ip1->ihl * 4;
off2 += ip2->ihl * 4;
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index b6ea6af..4536ee6 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -157,7 +157,7 @@
iph = ip_hdr(skb);
h = (__force u32)iph->daddr;
h2 = (__force u32)iph->saddr ^ iph->protocol;
- if (iph->frag_off & htons(IP_MF | IP_OFFSET))
+ if (ip_is_fragment(iph))
break;
poff = proto_ports_offset(iph->protocol);
if (poff >= 0 &&