xfrm: Mark flowi arg to xfrm_type->reject() const.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 614c296..cbe0003 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -334,7 +334,8 @@
 	void			(*destructor)(struct xfrm_state *);
 	int			(*input)(struct xfrm_state *, struct sk_buff *skb);
 	int			(*output)(struct xfrm_state *, struct sk_buff *pskb);
-	int			(*reject)(struct xfrm_state *, struct sk_buff *, struct flowi *);
+	int			(*reject)(struct xfrm_state *, struct sk_buff *,
+					  const struct flowi *);
 	int			(*hdr_offset)(struct xfrm_state *, struct sk_buff *, u8 **);
 	/* Estimate maximal size of result of transformation of a dgram */
 	u32			(*get_mtu)(struct xfrm_state *, int size);
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index d6e9599..f3e3ca9 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -203,7 +203,8 @@
 	return allow;
 }
 
-static int mip6_destopt_reject(struct xfrm_state *x, struct sk_buff *skb, struct flowi *fl)
+static int mip6_destopt_reject(struct xfrm_state *x, struct sk_buff *skb,
+			       const struct flowi *fl)
 {
 	struct net *net = xs_net(x);
 	struct inet6_skb_parm *opt = (struct inet6_skb_parm *)skb->cb;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index fa0b7f3..ccd47cf 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1907,7 +1907,7 @@
 EXPORT_SYMBOL(xfrm_lookup);
 
 static inline int
-xfrm_secpath_reject(int idx, struct sk_buff *skb, struct flowi *fl)
+xfrm_secpath_reject(int idx, struct sk_buff *skb, const struct flowi *fl)
 {
 	struct xfrm_state *x;