28f5bfb81919 ("l2tp: fix tunnel lookup use-after-free race")
d00fa9adc528 ("l2tp: fix races with tunnel socket close")
76a6abdb2513 ("l2tp: don't use inet_shutdown on tunnel destroy")
765924e362d1 ("l2tp: don't close sessions in l2tp_tunnel_destruct()")
c7fa745d9888 ("l2tp: remove l2tp_tunnel_count and l2tp_session_count")