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

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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>
This commit is contained in:
Vlad Yasevich 2013-10-15 22:01:29 -04:00 committed by David S. Miller
parent 6f93ac740a
commit e87b3998d7
1 changed files with 12 additions and 0 deletions
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12
include/net/dst.h
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@ -479,10 +479,22 @@ static inline struct dst_entry *xfrm_lookup(struct net *net,
{ {
return dst_orig; return dst_orig;
} }
static inline struct xfrm_state *dst_xfrm(const struct dst_entry *dst)
{
return NULL;
}
#else #else
extern struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig, extern struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig,
const struct flowi *fl, struct sock *sk, const struct flowi *fl, struct sock *sk,
int flags); 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
#endif /* _NET_DST_H */ #endif /* _NET_DST_H */