KVM: Add API for determining the number of supported memory slots

[linux-2.6-omap-h63xx.git] / include / net / netlink.h

diff --git a/include/net/netlink.h b/include/net/netlink.h
index d7b824be5422146b73f13e4758995507d153ec9f..a5506c42f03c164350e1ba69e5dfc445d3b388c2 100644 (file)
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -84,13 +84,14 @@
  *   nla_next(nla)-----------------------------'
  *
  * Data Structures:
- *   struct nlattr                     netlink attribtue header
+ *   struct nlattr                     netlink attribute header
  *
  * Attribute Construction:
  *   nla_reserve(skb, type, len)       reserve room for an attribute
  *   nla_reserve_nohdr(skb, len)       reserve room for an attribute w/o hdr
  *   nla_put(skb, type, len, data)     add attribute to skb
  *   nla_put_nohdr(skb, len, data)     add attribute w/o hdr
+ *   nla_append(skb, len, data)                append data to skb
  *
  * Attribute Construction for Basic Types:
  *   nla_put_u8(skb, type, value)      add u8 attribute to skb
@@ -217,12 +218,13 @@ struct nla_policy {
  */
 struct nl_info {
        struct nlmsghdr         *nlh;
+       struct net              *nl_net;
        u32                     pid;
 };
 
-extern void            netlink_run_queue(struct sock *sk, unsigned int *qlen,
-                                         int (*cb)(struct sk_buff *,
-                                                   struct nlmsghdr *));
+extern int             netlink_rcv_skb(struct sk_buff *skb,
+                                       int (*cb)(struct sk_buff *,
+                                                 struct nlmsghdr *));
 extern int             nlmsg_notify(struct sock *sk, struct sk_buff *skb,
                                     u32 pid, unsigned int group, int report,
                                     gfp_t flags);
@@ -253,6 +255,8 @@ extern int          nla_put(struct sk_buff *skb, int attrtype,
                                int attrlen, const void *data);
 extern int             nla_put_nohdr(struct sk_buff *skb, int attrlen,
                                      const void *data);
+extern int             nla_append(struct sk_buff *skb, int attrlen,
+                                  const void *data);
 
 /**************************************************************************
  * Netlink Messages
@@ -666,6 +670,15 @@ static inline int nla_padlen(int payload)
        return nla_total_size(payload) - nla_attr_size(payload);
 }
 
+/**
+ * nla_type - attribute type
+ * @nla: netlink attribute
+ */
+static inline int nla_type(const struct nlattr *nla)
+{
+       return nla->nla_type & NLA_TYPE_MASK;
+}
+
 /**
  * nla_data - head of payload
  * @nla: netlink attribute
@@ -697,7 +710,7 @@ static inline int nla_ok(const struct nlattr *nla, int remaining)
 }
 
 /**
- * nla_next - next netlink attribte in attribute stream
+ * nla_next - next netlink attribute in attribute stream
  * @nla: netlink attribute
  * @remaining: number of bytes remaining in attribute stream
  *
@@ -773,7 +786,7 @@ static inline int __nla_parse_nested_compat(struct nlattr *tb[], int maxtype,
 ({     data = nla_len(nla) >= len ? nla_data(nla) : NULL; \
        __nla_parse_nested_compat(tb, maxtype, nla, policy, len); })
 /**
- * nla_put_u8 - Add a u16 netlink attribute to a socket buffer
+ * nla_put_u8 - Add a u8 netlink attribute to a socket buffer
  * @skb: socket buffer to add attribute to
  * @attrtype: attribute type
  * @value: numeric value
@@ -853,7 +866,7 @@ static inline int nla_put_msecs(struct sk_buff *skb, int attrtype,
 
 #define NLA_PUT(skb, attrtype, attrlen, data) \
        do { \
-               if (nla_put(skb, attrtype, attrlen, data) < 0) \
+               if (unlikely(nla_put(skb, attrtype, attrlen, data) < 0)) \
                        goto nla_put_failure; \
        } while(0)
 
@@ -872,6 +885,9 @@ static inline int nla_put_msecs(struct sk_buff *skb, int attrtype,
 #define NLA_PUT_LE16(skb, attrtype, value) \
        NLA_PUT_TYPE(skb, __le16, attrtype, value)
 
+#define NLA_PUT_BE16(skb, attrtype, value) \
+       NLA_PUT_TYPE(skb, __be16, attrtype, value)
+
 #define NLA_PUT_U32(skb, attrtype, value) \
        NLA_PUT_TYPE(skb, u32, attrtype, value)
 
@@ -917,6 +933,15 @@ static inline u16 nla_get_u16(struct nlattr *nla)
        return *(u16 *) nla_data(nla);
 }
 
+/**
+ * nla_get_be16 - return payload of __be16 attribute
+ * @nla: __be16 netlink attribute
+ */
+static inline __be16 nla_get_be16(struct nlattr *nla)
+{
+       return *(__be16 *) nla_data(nla);
+}
+
 /**
  * nla_get_le16 - return payload of __le16 attribute
  * @nla: __le16 netlink attribute
@@ -989,7 +1014,7 @@ static inline struct nlattr *nla_nest_start(struct sk_buff *skb, int attrtype)
 
 /**
  * nla_nest_end - Finalize nesting of attributes
- * @skb: socket buffer the attribtues are stored in
+ * @skb: socket buffer the attributes are stored in
  * @start: container attribute
  *
  * Corrects the container attribute header to include the all
@@ -1032,7 +1057,7 @@ static inline struct nlattr *nla_nest_compat_start(struct sk_buff *skb,
 
 /**
  * nla_nest_compat_end - Finalize nesting of compat attributes
- * @skb: socket buffer the attribtues are stored in
+ * @skb: socket buffer the attributes are stored in
  * @start: container attribute
  *
  * Corrects the container attribute header to include the all