[PATCH 4.4 17/75] l2tp: fix configuration passed to setup_udp_tunnel_sock()

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Guillaume Nault [ Upstream commit a5c5e2da8551eb69e5d5d09d51d526140b5db9fb ] Unused fields of udp_cfg must be all zeros. Otherwise setup_udp_tunnel_sock() fills

[PATCH 4.4 17/75] l2tp: fix configuration passed to setup_udp_tunnel_sock()

4.4-stable review patch. If anyone has any objections, please let me know. -- From: Guillaume Nault [ Upstream commit a5c5e2da8551eb69e5d5d09d51d526140b5db9fb ] Unused fields of udp_cfg must be all zeros. Otherwise setup_udp_tunnel_sock() fills ->gro_receive and