udp: Move udp_tunnel_segment into udp_offload.c

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 76 deletions

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index ac30e106a884..f6dfe525584f 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2522,79 +2522,3 @@ void __init udp_init(void)
 	sysctl_udp_rmem_min = SK_MEM_QUANTUM;
 	sysctl_udp_wmem_min = SK_MEM_QUANTUM;
 }
-
-struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
-				       netdev_features_t features)
-{
-	struct sk_buff *segs = ERR_PTR(-EINVAL);
-	u16 mac_offset = skb->mac_header;
-	int mac_len = skb->mac_len;
-	int tnl_hlen = skb_inner_mac_header(skb) - skb_transport_header(skb);
-	__be16 protocol = skb->protocol;
-	netdev_features_t enc_features;
-	int udp_offset, outer_hlen;
-	unsigned int oldlen;
-	bool need_csum;
-
-	oldlen = (u16)~skb->len;
-
-	if (unlikely(!pskb_may_pull(skb, tnl_hlen)))
-		goto out;
-
-	skb->encapsulation = 0;
-	__skb_pull(skb, tnl_hlen);
-	skb_reset_mac_header(skb);
-	skb_set_network_header(skb, skb_inner_network_offset(skb));
-	skb->mac_len = skb_inner_network_offset(skb);
-	skb->protocol = htons(ETH_P_TEB);
-
-	need_csum = !!(skb_shinfo(skb)->gso_type & SKB_GSO_UDP_TUNNEL_CSUM);
-	if (need_csum)
-		skb->encap_hdr_csum = 1;
-
-	/* segment inner packet. */
-	enc_features = skb->dev->hw_enc_features & netif_skb_features(skb);
-	segs = skb_mac_gso_segment(skb, enc_features);
-	if (!segs || IS_ERR(segs)) {
-		skb_gso_error_unwind(skb, protocol, tnl_hlen, mac_offset,
-				     mac_len);
-		goto out;
-	}
-
-	outer_hlen = skb_tnl_header_len(skb);
-	udp_offset = outer_hlen - tnl_hlen;
-	skb = segs;
-	do {
-		struct udphdr *uh;
-		int len;
-
-		skb_reset_inner_headers(skb);
-		skb->encapsulation = 1;
-
-		skb->mac_len = mac_len;
-
-		skb_push(skb, outer_hlen);
-		skb_reset_mac_header(skb);
-		skb_set_network_header(skb, mac_len);
-		skb_set_transport_header(skb, udp_offset);
-		len = skb->len - udp_offset;
-		uh = udp_hdr(skb);
-		uh->len = htons(len);
-
-		if (need_csum) {
-			__be32 delta = htonl(oldlen + len);
-
-			uh->check = ~csum_fold((__force __wsum)
-					       ((__force u32)uh->check +
-						(__force u32)delta));
-			uh->check = gso_make_checksum(skb, ~uh->check);
-
-			if (uh->check == 0)
-				uh->check = CSUM_MANGLED_0;
-		}
-
-		skb->protocol = protocol;
-	} while ((skb = skb->next));
-out:
-	return segs;
-}