l2tp: add comment in API header that L2TP_ATTR_OFFSET is not used

Signed-off-by: James Chapman <jchapman@katalix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
James Chapman 2018-01-03 22:48:07 +00:00 • committed by David S. Miller
commit 4887d8933a