net/icmpv6, neighbor, and netdev: Rename netdev_dev_lladdrsize() to netdev_lladdrsize() and move the prototype to include/nuttx/nex/netdev.h, giving is global scope within the OS. Reviewer: This degrades the integrity of the modular architecture by introducing a new coupling via C function call. Not a good thing at all.

net/netdev/netdev.h

@@ -499,22 +499,6 @@ struct lifconf;  /* Forward reference */
 int netdev_ipv6_ifconf(FAR struct lifconf *lifc);
 #endif
 
-/****************************************************************************
- * Name: netdev_dev_lladdrsize
- *
- * Description:
- *   Returns the size of the MAC address associated with a network device.
- *
- * Input Parameters:
- *   dev - A reference to the device of interest
- *
- * Returned Value:
- *   The size of the MAC address associated with this device
- *
- ****************************************************************************/
-
-int netdev_dev_lladdrsize(FAR struct net_driver_s *dev);
-
 /****************************************************************************
  * Name: netdown_notifier_setup
  *

net/netdev/netdev_lladdrsize.c

@@ -98,7 +98,7 @@ static inline int netdev_pktradio_addrlen(FAR struct net_driver_s *dev)
  ****************************************************************************/
 
 /****************************************************************************
- * Name: netdev_dev_lladdrsize
+ * Name: netdev_lladdrsize
  *
  * Description:
  *   Returns the size of the MAC address associated with a network device.
@@ -111,7 +111,7 @@ static inline int netdev_pktradio_addrlen(FAR struct net_driver_s *dev)
  *
  ****************************************************************************/
 
-int netdev_dev_lladdrsize(FAR struct net_driver_s *dev)
+int netdev_lladdrsize(FAR struct net_driver_s *dev)
 {
   DEBUGASSERT(dev != NULL);