1 files changed, 28 insertions, 9 deletions

diff --git a/include/linux/udp.h b/include/linux/udp.h
index 58795688a186..998906ec3b32 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -23,6 +23,33 @@ static inline struct udphdr *udp_hdr(const struct sk_buff *skb)
 	return (struct udphdr *)skb_transport_header(skb);
 }
 
+static inline unsigned int udp_get_len(const struct sk_buff *skb,
+				       const struct udphdr *uh,
+				       unsigned int dataoff)
+{
+	if (uh->len)
+		return ntohs(uh->len);
+	if (skb_is_gso(skb)) /* BIG TCP */
+		return skb->len - dataoff;
+	return 0;
+}
+
+static inline unsigned int udp_get_len_short(const struct udphdr *uh)
+{
+	return ntohs(uh->len);
+}
+
+static inline void udp_set_len(struct udphdr *uh, unsigned int len)
+{
+	uh->len = len < GRO_LEGACY_MAX_SIZE ? htons(len) : 0;
+}
+
+static inline void udp_set_len_short(struct udphdr *uh, unsigned int len)
+{
+	DEBUG_NET_WARN_ON_ONCE(len >= GRO_LEGACY_MAX_SIZE);
+	uh->len = htons(len);
+}
+
 #define UDP_HTABLE_SIZE_MIN_PERNET	128
 #define UDP_HTABLE_SIZE_MIN		(IS_ENABLED(CONFIG_BASE_SMALL) ? 128 : 256)
 #define UDP_HTABLE_SIZE_MAX		65536
@@ -40,8 +67,6 @@ enum {
 	UDP_FLAGS_ACCEPT_FRAGLIST,
 	UDP_FLAGS_ACCEPT_L4,
 	UDP_FLAGS_ENCAP_ENABLED, /* This socket enabled encap */
-	UDP_FLAGS_UDPLITE_SEND_CC, /* set via udplite setsockopt */
-	UDP_FLAGS_UDPLITE_RECV_CC, /* set via udplite setsockopt */
 };
 
 /* per NUMA structure for lockless producer usage. */
@@ -74,11 +99,7 @@ struct udp_sock {
 	 */
 	__u16		 len;		/* total length of pending frames */
 	__u16		 gso_size;
-	/*
-	 * Fields specific to UDP-Lite.
-	 */
-	__u16		 pcslen;
-	__u16		 pcrlen;
+
 	/*
 	 * For encapsulation sockets.
 	 */
@@ -236,8 +257,6 @@ static inline void udp_allow_gso(struct sock *sk)
 	hlist_nulls_for_each_entry_rcu(__up, node, list, udp_lrpa_node)
 #endif
 
-#define IS_UDPLITE(__sk) (__sk->sk_protocol == IPPROTO_UDPLITE)
-
 static inline struct sock *udp_tunnel_sk(const struct net *net, bool is_ipv6)
 {
 #if IS_ENABLED(CONFIG_NET_UDP_TUNNEL)