netlink: constify nlmsghdr arguments

[~andy/linux] / include / net / netlink.h

diff --git a/include/net/netlink.h b/include/net/netlink.h
index eddb50289d6d12b8cb8a234c373f8574a0cb5562..a63b2192ac1cdf83dfc636ba362e58bd5da8b9ad 100644 (file)
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -365,7 +365,7 @@ static inline struct nlmsghdr *nlmsg_next(struct nlmsghdr *nlh, int *remaining)
  *
  * See nla_parse()
  */
-static inline int nlmsg_parse(struct nlmsghdr *nlh, int hdrlen,
+static inline int nlmsg_parse(const struct nlmsghdr *nlh, int hdrlen,
                              struct nlattr *tb[], int maxtype,
                              const struct nla_policy *policy)
 {
@@ -414,7 +414,7 @@ static inline int nlmsg_validate(struct nlmsghdr *nlh, int hdrlen, int maxtype,
  *
  * Returns 1 if a report back to the application is requested.
  */
-static inline int nlmsg_report(struct nlmsghdr *nlh)
+static inline int nlmsg_report(const struct nlmsghdr *nlh)
 {
        return !!(nlh->nlmsg_flags & NLM_F_ECHO);
 }
@@ -939,6 +939,15 @@ static inline u64 nla_get_u64(const struct nlattr *nla)
        return tmp;
 }
 
+/**
+ * nla_get_be64 - return payload of __be64 attribute
+ * @nla: __be64 netlink attribute
+ */
+static inline __be64 nla_get_be64(const struct nlattr *nla)
+{
+       return *(__be64 *) nla_data(nla);
+}
+
 /**
  * nla_get_flag - return payload of flag attribute
  * @nla: flag netlink attribute