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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 /include/net/ip.h
parentf470e5ae34d68880a38aa79ee5c102ebc2a1aef6 (diff)
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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 'include/net/ip.h')
-rw-r--r--include/net/ip.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/net/ip.h b/include/net/ip.h
index e9ea7c7..d603cd3 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -250,6 +250,11 @@ int ip_decrease_ttl(struct iphdr *iph)
return --iph->ttl;
}
+static inline bool ip_is_fragment(const struct iphdr *iph)
+{
+ return (iph->frag_off & htons(IP_MF | IP_OFFSET)) != 0;
+}
+
static inline
int ip_dont_fragment(struct sock *sk, struct dst_entry *dst)
{
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