tree d174995ab1e2d5751d5ca7ce7001071db4354fcf
parent 015cb1a35dfcec972e7ff0dacc1db2d6bf09f6d6
author likewise <likewise> 1083781722 +0000
committer likewise <likewise> 1083781722 +0000

As etharp already sends packets from the queue asynchronously, also make it send packet submitted through etharp_output().
etharp_output() now returns err_t.
etharp_query() now sends a packet directly if the IP address is stable.