[IPV6] ADDRCONF: Statically link __ipv6_addr_type() for sunrpc subsystem.

Link __ipv6_addr_type() statically for sunrpc code even if IPv6 is
built as module.

Signed-off-by: YOSHIFUJI Hidaki <yoshfuji@linux-ipv6.org>

3 files changed, 76 insertions, 69 deletions

diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index 8bacda109b7f..d460017bb353 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -32,6 +32,6 @@ obj-$(CONFIG_NETFILTER)	+= netfilter/
 obj-$(CONFIG_IPV6_SIT) += sit.o
 obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel.o
 
-obj-y += exthdrs_core.o
+obj-y += addrconf_core.o exthdrs_core.o
 
 obj-$(subst m,y,$(CONFIG_IPV6)) += inet6_hashtables.o
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 569a37d698f7..524bffe62499 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -211,74 +211,6 @@ const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT;
 #endif
 const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
 
-#define IPV6_ADDR_SCOPE_TYPE(scope)	((scope) << 16)
-
-static inline unsigned ipv6_addr_scope2type(unsigned scope)
-{
-	switch(scope) {
-	case IPV6_ADDR_SCOPE_NODELOCAL:
-		return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_NODELOCAL) |
-			IPV6_ADDR_LOOPBACK);
-	case IPV6_ADDR_SCOPE_LINKLOCAL:
-		return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL) |
-			IPV6_ADDR_LINKLOCAL);
-	case IPV6_ADDR_SCOPE_SITELOCAL:
-		return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL) |
-			IPV6_ADDR_SITELOCAL);
-	}
-	return IPV6_ADDR_SCOPE_TYPE(scope);
-}
-
-int __ipv6_addr_type(const struct in6_addr *addr)
-{
-	__be32 st;
-
-	st = addr->s6_addr32[0];
-
-	/* Consider all addresses with the first three bits different of
-	   000 and 111 as unicasts.
-	 */
-	if ((st & htonl(0xE0000000)) != htonl(0x00000000) &&
-	    (st & htonl(0xE0000000)) != htonl(0xE0000000))
-		return (IPV6_ADDR_UNICAST |
-			IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));
-
-	if ((st & htonl(0xFF000000)) == htonl(0xFF000000)) {
-		/* multicast */
-		/* addr-select 3.1 */
-		return (IPV6_ADDR_MULTICAST |
-			ipv6_addr_scope2type(IPV6_ADDR_MC_SCOPE(addr)));
-	}
-
-	if ((st & htonl(0xFFC00000)) == htonl(0xFE800000))
-		return (IPV6_ADDR_LINKLOCAL | IPV6_ADDR_UNICAST |
-			IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL));		/* addr-select 3.1 */
-	if ((st & htonl(0xFFC00000)) == htonl(0xFEC00000))
-		return (IPV6_ADDR_SITELOCAL | IPV6_ADDR_UNICAST |
-			IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL));		/* addr-select 3.1 */
-
-	if ((addr->s6_addr32[0] | addr->s6_addr32[1]) == 0) {
-		if (addr->s6_addr32[2] == 0) {
-			if (addr->s6_addr32[3] == 0)
-				return IPV6_ADDR_ANY;
-
-			if (addr->s6_addr32[3] == htonl(0x00000001))
-				return (IPV6_ADDR_LOOPBACK | IPV6_ADDR_UNICAST |
-					IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL));	/* addr-select 3.4 */
-
-			return (IPV6_ADDR_COMPATv4 | IPV6_ADDR_UNICAST |
-				IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));	/* addr-select 3.3 */
-		}
-
-		if (addr->s6_addr32[2] == htonl(0x0000ffff))
-			return (IPV6_ADDR_MAPPED |
-				IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));	/* addr-select 3.3 */
-	}
-
-	return (IPV6_ADDR_RESERVED |
-		IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));	/* addr-select 3.4 */
-}
-
 static void addrconf_del_timer(struct inet6_ifaddr *ifp)
 {
 	if (del_timer(&ifp->timer))
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
new file mode 100644
index 000000000000..644e0c742f99
--- /dev/null
+++ b/net/ipv6/addrconf_core.c
@@ -0,0 +1,75 @@
+/*
+ * IPv6 library code, needed by static components when full IPv6 support is
+ * not configured or static.
+ */
+
+#include <net/ipv6.h>
+
+#define IPV6_ADDR_SCOPE_TYPE(scope)	((scope) << 16)
+
+static inline unsigned ipv6_addr_scope2type(unsigned scope)
+{
+	switch(scope) {
+	case IPV6_ADDR_SCOPE_NODELOCAL:
+		return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_NODELOCAL) |
+			IPV6_ADDR_LOOPBACK);
+	case IPV6_ADDR_SCOPE_LINKLOCAL:
+		return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL) |
+			IPV6_ADDR_LINKLOCAL);
+	case IPV6_ADDR_SCOPE_SITELOCAL:
+		return (IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL) |
+			IPV6_ADDR_SITELOCAL);
+	}
+	return IPV6_ADDR_SCOPE_TYPE(scope);
+}
+
+int __ipv6_addr_type(const struct in6_addr *addr)
+{
+	__be32 st;
+
+	st = addr->s6_addr32[0];
+
+	/* Consider all addresses with the first three bits different of
+	   000 and 111 as unicasts.
+	 */
+	if ((st & htonl(0xE0000000)) != htonl(0x00000000) &&
+	    (st & htonl(0xE0000000)) != htonl(0xE0000000))
+		return (IPV6_ADDR_UNICAST |
+			IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));
+
+	if ((st & htonl(0xFF000000)) == htonl(0xFF000000)) {
+		/* multicast */
+		/* addr-select 3.1 */
+		return (IPV6_ADDR_MULTICAST |
+			ipv6_addr_scope2type(IPV6_ADDR_MC_SCOPE(addr)));
+	}
+
+	if ((st & htonl(0xFFC00000)) == htonl(0xFE800000))
+		return (IPV6_ADDR_LINKLOCAL | IPV6_ADDR_UNICAST |
+			IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL));		/* addr-select 3.1 */
+	if ((st & htonl(0xFFC00000)) == htonl(0xFEC00000))
+		return (IPV6_ADDR_SITELOCAL | IPV6_ADDR_UNICAST |
+			IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_SITELOCAL));		/* addr-select 3.1 */
+
+	if ((addr->s6_addr32[0] | addr->s6_addr32[1]) == 0) {
+		if (addr->s6_addr32[2] == 0) {
+			if (addr->s6_addr32[3] == 0)
+				return IPV6_ADDR_ANY;
+
+			if (addr->s6_addr32[3] == htonl(0x00000001))
+				return (IPV6_ADDR_LOOPBACK | IPV6_ADDR_UNICAST |
+					IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_LINKLOCAL));	/* addr-select 3.4 */
+
+			return (IPV6_ADDR_COMPATv4 | IPV6_ADDR_UNICAST |
+				IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));	/* addr-select 3.3 */
+		}
+
+		if (addr->s6_addr32[2] == htonl(0x0000ffff))
+			return (IPV6_ADDR_MAPPED |
+				IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));	/* addr-select 3.3 */
+	}
+
+	return (IPV6_ADDR_RESERVED |
+		IPV6_ADDR_SCOPE_TYPE(IPV6_ADDR_SCOPE_GLOBAL));	/* addr-select 3.4 */
+}
+