xfrm: Const'ify xfrm_address_t args to xfrm_*_hash.

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

net/xfrm/xfrm_state.c

@@ -50,8 +50,8 @@ static void xfrm_audit_state_replay(struct xfrm_state *x,
 #endif /* CONFIG_AUDITSYSCALL */
 
 static inline unsigned int xfrm_dst_hash(struct net *net,
-					 xfrm_address_t *daddr,
-					 xfrm_address_t *saddr,
+					 const xfrm_address_t *daddr,
+					 const xfrm_address_t *saddr,
 					 u32 reqid,
 					 unsigned short family)
 {
@@ -59,15 +59,16 @@ static inline unsigned int xfrm_dst_hash(struct net *net,
 }
 
 static inline unsigned int xfrm_src_hash(struct net *net,
-					 xfrm_address_t *daddr,
-					 xfrm_address_t *saddr,
+					 const xfrm_address_t *daddr,
+					 const xfrm_address_t *saddr,
 					 unsigned short family)
 {
 	return __xfrm_src_hash(daddr, saddr, family, net->xfrm.state_hmask);
 }
 
 static inline unsigned int
-xfrm_spi_hash(struct net *net, xfrm_address_t *daddr, __be32 spi, u8 proto, unsigned short family)
+xfrm_spi_hash(struct net *net, const xfrm_address_t *daddr,
+	      __be32 spi, u8 proto, unsigned short family)
 {
 	return __xfrm_spi_hash(daddr, spi, proto, family, net->xfrm.state_hmask);
 }