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authorPaul Gortmaker <paul.gortmaker@windriver.com>2011-06-21 20:33:34 -0700
committerDavid S. Miller <davem@davemloft.net>2011-06-21 20:33:34 -0700
commit56f8a75c17abb854b5907f4a815dc4c3f186ba11 (patch)
tree6ba333b7668ce7dd04cddecf4f15a0a48b335991 /net/ipv4/ip_input.c
parentf470e5ae34d68880a38aa79ee5c102ebc2a1aef6 (diff)
downloadlinux-56f8a75c17abb854b5907f4a815dc4c3f186ba11.tar.gz
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>
Diffstat (limited to 'net/ipv4/ip_input.c')
-rw-r--r--net/ipv4/ip_input.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index c8f48efc5fd3..073a9b01c40c 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -165,7 +165,7 @@ int ip_call_ra_chain(struct sk_buff *skb)
 		    (!sk->sk_bound_dev_if ||
 		     sk->sk_bound_dev_if == dev->ifindex) &&
 		    net_eq(sock_net(sk), dev_net(dev))) {
-			if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
+			if (ip_is_fragment(ip_hdr(skb))) {
 				if (ip_defrag(skb, IP_DEFRAG_CALL_RA_CHAIN))
 					return 1;
 			}
@@ -256,7 +256,7 @@ int ip_local_deliver(struct sk_buff *skb)
 	 *	Reassemble IP fragments.
 	 */
 
-	if (ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)) {
+	if (ip_is_fragment(ip_hdr(skb))) {
 		if (ip_defrag(skb, IP_DEFRAG_LOCAL_DELIVER))
 			return 0;
 	}