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authorEric Dumazet <dada1@cosmosbay.com>2008-03-05 18:30:47 -0800
committerDavid S. Miller <davem@davemloft.net>2008-03-05 18:30:47 -0800
commitee6b967301b4aa5d4a4b61e2f682f086266db9fb (patch)
tree197c2430f87733dc80d00d1971f1be2a0e562358 /include
parenta05c44f6d5fb6cd29da04f96bf5ffaa05f545ac5 (diff)
[IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts
(Anonymous) unions can help us to avoid ugly casts. A common cast it the (struct rtable *)skb->dst one. Defining an union like : union { struct dst_entry *dst; struct rtable *rtable; }; permits to use skb->rtable in place. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/linux/skbuff.h5
-rw-r--r--include/net/inet_sock.h2
2 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index bbd8d0027e2f..7beb239d2ee0 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -256,7 +256,10 @@ struct sk_buff {
ktime_t tstamp;
struct net_device *dev;
- struct dst_entry *dst;
+ union {
+ struct dst_entry *dst;
+ struct rtable *rtable;
+ };
struct sec_path *sp;
/*
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 89cd011edb99..8660cb0fa0dd 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -195,7 +195,7 @@ static inline int inet_sk_ehashfn(const struct sock *sk)
static inline int inet_iif(const struct sk_buff *skb)
{
- return ((struct rtable *)skb->dst)->rt_iif;
+ return skb->rtable->rt_iif;
}
#endif /* _INET_SOCK_H */