[XFRM]: xfrm_parse_spi() annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/xfrm.h

@@ -1004,7 +1004,7 @@ extern void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 pi
 extern int km_report(u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
 
 extern void xfrm_input_init(void);
-extern int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, u32 *spi, u32 *seq);
+extern int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 *seq);
 
 extern void xfrm_probe_algs(void);
 extern int xfrm_count_auth_supported(void);

net/ipv4/xfrm4_input.c

@@ -23,7 +23,7 @@ int xfrm4_rcv(struct sk_buff *skb)
 
 EXPORT_SYMBOL(xfrm4_rcv);
 
-static int xfrm4_parse_spi(struct sk_buff *skb, u8 nexthdr, u32 *spi, u32 *seq)
+static int xfrm4_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 *seq)
 {
 	switch (nexthdr) {
 	case IPPROTO_IPIP:
@@ -55,7 +55,7 @@ drop:
 int xfrm4_rcv_encap(struct sk_buff *skb, __u16 encap_type)
 {
 	int err;
-	u32 spi, seq;
+	__be32 spi, seq;
 	struct xfrm_state *xfrm_vec[XFRM_MAX_DEPTH];
 	struct xfrm_state *x;
 	int xfrm_nr = 0;

net/ipv6/xfrm6_input.c

@@ -19,7 +19,7 @@
 int xfrm6_rcv_spi(struct sk_buff *skb, u32 spi)
 {
 	int err;
-	u32 seq;
+	__be32 seq;
 	struct xfrm_state *xfrm_vec[XFRM_MAX_DEPTH];
 	struct xfrm_state *x;
 	int xfrm_nr = 0;

net/xfrm/xfrm_input.c

@@ -46,7 +46,7 @@ EXPORT_SYMBOL(secpath_dup);
 
 /* Fetch spi and seq from ipsec header */
 
-int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, u32 *spi, u32 *seq)
+int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 *seq)
 {
 	int offset, offset_seq;
 
@@ -62,7 +62,7 @@ int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, u32 *spi, u32 *seq)
 	case IPPROTO_COMP:
 		if (!pskb_may_pull(skb, sizeof(struct ip_comp_hdr)))
 			return -EINVAL;
-		*spi = htonl(ntohs(*(u16*)(skb->h.raw + 2)));
+		*spi = htonl(ntohs(*(__be16*)(skb->h.raw + 2)));
 		*seq = 0;
 		return 0;
 	default:
@@ -72,8 +72,8 @@ int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, u32 *spi, u32 *seq)
 	if (!pskb_may_pull(skb, 16))
 		return -EINVAL;
 
-	*spi = *(u32*)(skb->h.raw + offset);
-	*seq = *(u32*)(skb->h.raw + offset_seq);
+	*spi = *(__be32*)(skb->h.raw + offset);
+	*seq = *(__be32*)(skb->h.raw + offset_seq);
 	return 0;
 }
 EXPORT_SYMBOL(xfrm_parse_spi);