[XFRM]: xfrm_state_lookup() annotations

spi argument of xfrm_state_lookup() is net-endian
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/xfrm.h

@@ -912,7 +912,7 @@ extern int xfrm_state_check_expire(struct xfrm_state *x);
 extern void xfrm_state_insert(struct xfrm_state *x);
 extern int xfrm_state_add(struct xfrm_state *x);
 extern int xfrm_state_update(struct xfrm_state *x);
-extern struct xfrm_state *xfrm_state_lookup(xfrm_address_t *daddr, u32 spi, u8 proto, unsigned short family);
+extern struct xfrm_state *xfrm_state_lookup(xfrm_address_t *daddr, __be32 spi, u8 proto, unsigned short family);
 extern struct xfrm_state *xfrm_state_lookup_byaddr(xfrm_address_t *daddr, xfrm_address_t *saddr, u8 proto, unsigned short family);
 #ifdef CONFIG_XFRM_SUB_POLICY
 extern int xfrm_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src,

net/ipv4/ipcomp.c

@@ -183,7 +183,7 @@ out_ok:
 
 static void ipcomp4_err(struct sk_buff *skb, u32 info)
 {
-	u32 spi;
+	__be32 spi;
 	struct iphdr *iph = (struct iphdr *)skb->data;
 	struct ip_comp_hdr *ipch = (struct ip_comp_hdr *)(skb->data+(iph->ihl<<2));
 	struct xfrm_state *x;

net/ipv6/ipcomp6.c

@@ -178,7 +178,7 @@ out_ok:
 static void ipcomp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		                int type, int code, int offset, __u32 info)
 {
-	u32 spi;
+	__be32 spi;
 	struct ipv6hdr *iph = (struct ipv6hdr*)skb->data;
 	struct ipv6_comp_hdr *ipcomph = (struct ipv6_comp_hdr*)(skb->data+offset);
 	struct xfrm_state *x;
@@ -234,7 +234,7 @@ static int ipcomp6_tunnel_attach(struct xfrm_state *x)
 {
 	int err = 0;
 	struct xfrm_state *t = NULL;
-	u32 spi;
+	__be32 spi;
 
 	spi = xfrm6_tunnel_spi_lookup((xfrm_address_t *)&x->props.saddr);
 	if (spi)

net/xfrm/xfrm_state.c

@@ -421,7 +421,7 @@ xfrm_init_tempsel(struct xfrm_state *x, struct flowi *fl,
 	return 0;
 }
 
-static struct xfrm_state *__xfrm_state_lookup(xfrm_address_t *daddr, u32 spi, u8 proto, unsigned short family)
+static struct xfrm_state *__xfrm_state_lookup(xfrm_address_t *daddr, __be32 spi, u8 proto, unsigned short family)
 {
 	unsigned int h = xfrm_spi_hash(daddr, spi, proto, family);
 	struct xfrm_state *x;
@@ -916,7 +916,7 @@ err:
 EXPORT_SYMBOL(xfrm_state_check);
 
 struct xfrm_state *
-xfrm_state_lookup(xfrm_address_t *daddr, u32 spi, u8 proto,
+xfrm_state_lookup(xfrm_address_t *daddr, __be32 spi, u8 proto,
 		  unsigned short family)
 {
 	struct xfrm_state *x;