From: Vlad Yasevich <vyasevich@gmail.com>
Date: Wed, 16 Oct 2013 02:01:29 +0000 (-0400)
Subject: net: dst: provide accessor function to dst->xfrm
X-Git-Tag: v3.12-rc7~20^2~30^2~2
X-Git-Url: http://pileus.org/git/?p=~andy%2Flinux;a=commitdiff_plain;h=e87b3998d795123b4139bc3f25490dd236f68212

net: dst: provide accessor function to dst->xfrm

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

Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/dst.h b/include/net/dst.h
index 3bc4865f826..3c4c944096c 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -479,10 +479,22 @@ static inline struct dst_entry *xfrm_lookup(struct net *net,
 {
 	return dst_orig;
 } 
+
+static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst)
+{
+	return NULL;
+}
+
 #else
 extern struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig,
 				     const 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 /* _NET_DST_H */