[XFRM]: xfrm_spi_hash() annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/xfrm/xfrm_hash.h b/net/xfrm/xfrm_hash.h
index d3abb0b..6ac4e4f 100644
--- a/net/xfrm/xfrm_hash.h
+++ b/net/xfrm/xfrm_hash.h
@@ -58,10 +58,10 @@
 }
 
 static inline unsigned int
-__xfrm_spi_hash(xfrm_address_t *daddr, u32 spi, u8 proto, unsigned short family,
+__xfrm_spi_hash(xfrm_address_t *daddr, __be32 spi, u8 proto, unsigned short family,
 		unsigned int hmask)
 {
-	unsigned int h = spi ^ proto;
+	unsigned int h = (__force u32)spi ^ proto;
 	switch (family) {
 	case AF_INET:
 		h ^= __xfrm4_addr_hash(daddr);