xfrm: Const'ify xfrm_address_t args to __xfrm_state_lookup{,_byaddr}.

Signed-off-by: David S. Miller <davem@davemloft.net>

net/xfrm/xfrm_state.c

@@ -678,7 +678,10 @@ xfrm_init_tempstate(struct xfrm_state *x, const struct flowi *fl,
 	return 0;
 }
 
-static struct xfrm_state *__xfrm_state_lookup(struct net *net, u32 mark, xfrm_address_t *daddr, __be32 spi, u8 proto, unsigned short family)
+static struct xfrm_state *__xfrm_state_lookup(struct net *net, u32 mark,
+					      const xfrm_address_t *daddr,
+					      __be32 spi, u8 proto,
+					      unsigned short family)
 {
 	unsigned int h = xfrm_spi_hash(net, daddr, spi, proto, family);
 	struct xfrm_state *x;
@@ -700,7 +703,10 @@ static struct xfrm_state *__xfrm_state_lookup(struct net *net, u32 mark, xfrm_ad
 	return NULL;
 }
 
-static struct xfrm_state *__xfrm_state_lookup_byaddr(struct net *net, u32 mark, xfrm_address_t *daddr, xfrm_address_t *saddr, u8 proto, unsigned short family)
+static struct xfrm_state *__xfrm_state_lookup_byaddr(struct net *net, u32 mark,
+						     const xfrm_address_t *daddr,
+						     const xfrm_address_t *saddr,
+						     u8 proto, unsigned short family)
 {
 	unsigned int h = xfrm_src_hash(net, daddr, saddr, family);
 	struct xfrm_state *x;