[PATCH] enable automatic module loading for l2tp_ppp

When L2TP is configured as a module, requests for L2TP sockets do not result
in the l2tp_ppp module being loaded.  Fix this by adding the appropriate
MODULE_ALIAS to be recognized by pppox's request_module() call.

Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
---
 net/l2tp/l2tp_ppp.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 9b07191..1addd9f 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c

@@ -1845,3 +1845,4 @@ MODULE_AUTHOR("James Chapman <jchapman@katalix.com>");
 MODULE_DESCRIPTION("PPP over L2TP over UDP");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(PPPOL2TP_DRV_VERSION);
+MODULE_ALIAS("pppox-proto-" __stringify(PX_PROTO_OL2TP));

-- 
1.7.4.1