2.6.32-longterm review patch.  If anyone has any objections, please let me know.

------------------

From: Vlad Yasevich <[email protected]>

[ Upstream commit e87b3998d795123b4139bc3f25490dd236f68212 ]

dst->xfrm is conditionally defined.  Provide accessor funtion that
is always available.

Signed-off-by: Vlad Yasevich <[email protected]>
Acked-by: Neil Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Willy Tarreau <[email protected]>
---
 include/net/dst.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/net/dst.h b/include/net/dst.h
index 5a900dd..49f443b 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -286,11 +286,22 @@ static inline int __xfrm_lookup(struct net *net, struct 
dst_entry **dst_p,
 {
        return 0;
 }
+static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst)
+{
+       return NULL;
+}
+
 #else
 extern int xfrm_lookup(struct net *net, struct dst_entry **dst_p,
                       struct flowi *fl, struct sock *sk, int flags);
 extern int __xfrm_lookup(struct net *net, struct dst_entry **dst_p,
                         struct flowi *fl, struct sock *sk, int flags);
+
+/* skb attached with this dst needs transformation if dst->xfrm is valid */
+static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst)
+{
+       return dst->xfrm;
+}
 #endif
 #endif
 
-- 
1.7.12.2.21.g234cd45.dirty



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