From f6b9664f8b711cf4fd53e70aa0d21f72d5bf806c Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Tue, 1 Mar 2011 02:36:48 +0000 Subject: udp: Switch to ip_finish_skb This patch converts UDP to use the new ip_finish_skb API. This would then allows us to more easily use ip_make_skb which allows UDP to run without a socket lock. Signed-off-by: Herbert Xu Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- include/net/udp.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/net/udp.h') diff --git a/include/net/udp.h b/include/net/udp.h index e82f3a8c0f8f..67ea6fcb3ec0 100644 --- a/include/net/udp.h +++ b/include/net/udp.h @@ -144,6 +144,17 @@ static inline __wsum udp_csum_outgoing(struct sock *sk, struct sk_buff *skb) return csum; } +static inline __wsum udp_csum(struct sk_buff *skb) +{ + __wsum csum = csum_partial(skb_transport_header(skb), + sizeof(struct udphdr), skb->csum); + + for (skb = skb_shinfo(skb)->frag_list; skb; skb = skb->next) { + csum = csum_add(csum, skb->csum); + } + return csum; +} + /* hash routines shared between UDPv4/6 and UDP-Litev4/6 */ static inline void udp_lib_hash(struct sock *sk) { -- cgit v1.2.3