+static inline unsigned long addrconf_timeout_fixup(u32 timeout,
+ unsigned unit)
+{
+ if (timeout == 0xffffffff)
+ return ~0UL;
+
+ /*
+ * Avoid arithmetic overflow.
+ * Assuming unit is constant and non-zero, this "if" statement
+ * will go away on 64bit archs.
+ */
+ if (0xfffffffe > LONG_MAX / unit && timeout > LONG_MAX / unit)
+ return LONG_MAX / unit;
+
+ return timeout;
+}
+
+static inline int addrconf_finite_timeout(unsigned long timeout)
+{
+ return ~timeout;
+}
+
+/*
+ * IPv6 Address Label subsystem (addrlabel.c)
+ */
+extern int ipv6_addr_label_init(void);
+extern void ipv6_addr_label_rtnl_register(void);
+extern u32 ipv6_addr_label(struct net *net,
+ const struct in6_addr *addr,
+ int type, int ifindex);
+