[XFRM_USER]: Rename confusing member of struct xfrm_usersa_id.

include/linux/xfrm.h

@@ -164,7 +164,7 @@ struct xfrm_usersa_info {
 };
 
 struct xfrm_usersa_id {
-	xfrm_address_t			saddr;
+	xfrm_address_t			daddr;
 	__u32				spi;
 	__u16				family;
 	__u8				proto;

net/xfrm/xfrm_user.c

@@ -277,7 +277,7 @@ static int xfrm_del_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
 	struct xfrm_state *x;
 	struct xfrm_usersa_id *p = NLMSG_DATA(nlh);
 
-	x = xfrm_state_lookup(&p->saddr, p->spi, p->proto, p->family);
+	x = xfrm_state_lookup(&p->daddr, p->spi, p->proto, p->family);
 	if (x == NULL)
 		return -ESRCH;
 
@@ -403,7 +403,7 @@ static int xfrm_get_sa(struct sk_buff *skb, struct nlmsghdr *nlh, void **xfrma)
 	struct sk_buff *resp_skb;
 	int err;
 
-	x = xfrm_state_lookup(&p->saddr, p->spi, p->proto, p->family);
+	x = xfrm_state_lookup(&p->daddr, p->spi, p->proto, p->family);
 	err = -ESRCH;
 	if (x == NULL)
 		goto out_noput;