+ * nla_nest_compat_start - Start a new level of nested compat attributes
+ * @skb: socket buffer to add attributes to
+ * @attrtype: attribute type of container
+ * @attrlen: length of structure
+ * @data: pointer to structure
+ *
+ * Start a nested compat attribute that contains both a structure and
+ * a set of nested attributes.
+ *
+ * Returns the container attribute
+ */
+static inline struct nlattr *nla_nest_compat_start(struct sk_buff *skb,
+ int attrtype, int attrlen,
+ const void *data)
+{
+ struct nlattr *start = (struct nlattr *)skb_tail_pointer(skb);
+
+ if (nla_put(skb, attrtype, attrlen, data) < 0)
+ return NULL;
+ if (nla_nest_start(skb, attrtype) == NULL) {
+ nlmsg_trim(skb, start);
+ return NULL;
+ }
+ return start;
+}
+
+/**
+ * nla_nest_compat_end - Finalize nesting of compat attributes
+ * @skb: socket buffer the attributes are stored in
+ * @start: container attribute
+ *
+ * Corrects the container attribute header to include the all
+ * appeneded attributes.
+ *
+ * Returns the total data length of the skb.
+ */
+static inline int nla_nest_compat_end(struct sk_buff *skb, struct nlattr *start)
+{
+ struct nlattr *nest = (void *)start + NLMSG_ALIGN(start->nla_len);
+
+ start->nla_len = skb_tail_pointer(skb) - (unsigned char *)start;
+ return nla_nest_end(skb, nest);
+}
+
+/**