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-rw-r--r--include/net/udplite.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/net/udplite.h b/include/net/udplite.h
index afdffe607b2..673a024c6b2 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -115,6 +115,18 @@ static inline __wsum udplite_csum_outgoing(struct sock *sk, struct sk_buff *skb)
return csum;
}
+static inline __wsum udplite_csum(struct sk_buff *skb)
+{
+ struct sock *sk = skb->sk;
+ int cscov = udplite_sender_cscov(udp_sk(sk), udp_hdr(skb));
+ const int off = skb_transport_offset(skb);
+ const int len = skb->len - off;
+
+ skb->ip_summed = CHECKSUM_NONE; /* no HW support for checksumming */
+
+ return skb_checksum(skb, off, min(cscov, len), 0);
+}
+
extern void udplite4_register(void);
extern int udplite_get_port(struct sock *sk, unsigned short snum,
int (*scmp)(const struct sock *, const struct sock *));