Here is the patch to drop the packet if encap_type is unknown.
I've also removed the other two bogus printk's as they cannot
occur (printing a message is the last thing you want to do even
if they did occur :).
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@redhat.com>