tree e9a32c88110ccf5382726ec1d7321ebfa2e878d2
parent 5c0c52c9102f90c9d5674fb6c5f4f23e3019dd9f
author David S. Miller <davem@davemloft.net> 1381261466 -0400
committer David S. Miller <davem@davemloft.net> 1381261466 -0400

l2tp: Fix build warning with ipv6 disabled.

net/l2tp/l2tp_core.c: In function ‘l2tp_verify_udp_checksum’:
net/l2tp/l2tp_core.c:499:22: warning: unused variable ‘tunnel’ [-Wunused-variable]

Create a helper "l2tp_tunnel()" to facilitate this, and as a side
effect get rid of a bunch of unnecessary void pointer casts.

Signed-off-by: David S. Miller <davem@davemloft.net>