ip_gre: Remove even more unused code

There is a confusing mix of ipgre and gretap functions with some
needed for gretap still having ipgre_ prefixes.  This time though
I think I got the rest of the unused ipgre code.

Fixes: d5822f428814 ("gre: Remove dead ipgre code")
Signed-off-by: Greg Rose <gvrose8192@gmail.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>

1 files changed, 0 insertions, 38 deletions

diff --git a/datapath/linux/compat/ip_gre.c b/datapath/linux/compat/ip_gre.c
index 3b7e607d5..853624114 100644
--- a/datapath/linux/compat/ip_gre.c
+++ b/datapath/linux/compat/ip_gre.c
@@ -922,44 +922,6 @@ static int erspan_tunnel_init(struct net_device *dev)
 	return ip_tunnel_init(dev);
 }
 
-static int ipgre_header(struct sk_buff *skb, struct net_device *dev,
-			unsigned short type,
-			const void *daddr, const void *saddr, unsigned int len)
-{
-	struct ip_tunnel *t = netdev_priv(dev);
-	struct iphdr *iph;
-	struct gre_base_hdr *greh;
-
-	iph = (struct iphdr *)__skb_push(skb, t->hlen + sizeof(*iph));
-	greh = (struct gre_base_hdr *)(iph+1);
-	greh->flags = gre_tnl_flags_to_gre_flags(t->parms.o_flags);
-	greh->protocol = htons(type);
-
-	memcpy(iph, &t->parms.iph, sizeof(struct iphdr));
-
-	/* Set the source hardware address. */
-	if (saddr)
-		memcpy(&iph->saddr, saddr, 4);
-	if (daddr)
-		memcpy(&iph->daddr, daddr, 4);
-	if (iph->daddr)
-		return t->hlen + sizeof(*iph);
-
-	return -(t->hlen + sizeof(*iph));
-}
-
-static int ipgre_header_parse(const struct sk_buff *skb, unsigned char *haddr)
-{
-	const struct iphdr *iph = (const struct iphdr *) skb_mac_header(skb);
-	memcpy(haddr, &iph->saddr, 4);
-	return 4;
-}
-
-static const struct header_ops ipgre_header_ops = {
-	.create	= ipgre_header,
-	.parse	= ipgre_header_parse,
-};
-
 static int ipgre_tunnel_init(struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);