[NETFILTER]: nf_conntrack: rename struct nf_conntrack_protocol

Rename 'struct nf_conntrack_protocol' to 'struct nf_conntrack_l4proto' in
order to help distinguish it from 'struct nf_conntrack_l3proto'. It gets
rather confusing with 'nf_conntrack_protocol'.

Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c
index 26408bb..f44811e 100644
--- a/net/netfilter/nf_conntrack_proto_generic.c
+++ b/net/netfilter/nf_conntrack_proto_generic.c
@@ -15,7 +15,7 @@
 #include <linux/sched.h>
 #include <linux/timer.h>
 #include <linux/netfilter.h>
-#include <net/netfilter/nf_conntrack_protocol.h>
+#include <net/netfilter/nf_conntrack_l4proto.h>
 
 unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ;
 
@@ -71,10 +71,10 @@
 	return 1;
 }
 
-struct nf_conntrack_protocol nf_conntrack_generic_protocol =
+struct nf_conntrack_l4proto nf_conntrack_l4proto_generic =
 {
 	.l3proto		= PF_UNSPEC,
-	.proto			= 0,
+	.l4proto		= 0,
 	.name			= "unknown",
 	.pkt_to_tuple		= generic_pkt_to_tuple,
 	.invert_tuple		= generic_invert_tuple,