sit/gre6: don't try to add the same route two times

addrconf_add_linklocal() already adds the link local route, so there is no
reason to add it before calling this function.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed