Split ipv6 functions out from ipv4.c

src/net/ipv4.c

 	return rc;
 }
 
-/**
- * Transmit IP6 packets
- * 
- * Placeholder to allow linking. The function should be placed in net/ipv6.c
- */
-int ipv6_tx ( struct pk_buff *pkb __unused, uint16_t trans_proto __unused, struct in6_addr *dest __unused) {
-	return -ENOSYS;
-}
-
-
 /**
  * Process incoming IP packets
  *
 	return 0;
 }
 
-/**
- * Process incoming IP6 packets
- * 
- * Placeholder function. Should rewrite in net/ipv6.c
- */
-void ipv6_rx ( struct pk_buff *pkb __unused, struct net_device *netdev __unused, const void *ll_source __unused ) {
-}
-
 /**
  * Process incoming packets (without uIP)
  *

src/net/ipv6.c

+#include <errno.h>
+#include <gpxe/pkbuff.h>
+#include <gpxe/netdevice.h>
+#include <gpxe/in.h>
+
+/**
+ * Transmit IP6 packets
+ *
+ * Placeholder to allow linking. The function should be placed in net/ipv6.c
+ */
+int ipv6_tx ( struct pk_buff *pkb __unused, uint16_t trans_proto __unused,
+	      struct in6_addr *dest __unused) {
+	return -ENOSYS;
+}
+
+/**
+ * Process incoming IP6 packets
+ *
+ * Placeholder function. Should rewrite in net/ipv6.c
+ */
+void ipv6_rx ( struct pk_buff *pkb __unused,
+	       struct net_device *netdev __unused,
+	       const void *ll_source __unused ) {
+}