* [PATCH 2/4] udp: call __skb_checksum_complete when doing full checksum
@ 2014-06-12 23:04 Tom Herbert
0 siblings, 0 replies; only message in thread
From: Tom Herbert @ 2014-06-12 23:04 UTC (permalink / raw)
To: davem, netdev
In __udp_lib_checksum_complete check if checksum is being done over all
the data (len is equal to skb->len) and if it is call
__skb_checksum_complete instead of __skb_checksum_complete_head. This
allows checksum to be saved in checksum complete.
Signed-off-by: Tom Herbert <therbert@google.com>
---
include/net/udp.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/net/udp.h b/include/net/udp.h
index 2ecfc6e..68a1fef 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -111,7 +111,9 @@ struct sk_buff;
*/
static inline __sum16 __udp_lib_checksum_complete(struct sk_buff *skb)
{
- return __skb_checksum_complete_head(skb, UDP_SKB_CB(skb)->cscov);
+ return (UDP_SKB_CB(skb)->cscov == skb->len ?
+ __skb_checksum_complete(skb) :
+ __skb_checksum_complete_head(skb, UDP_SKB_CB(skb)->cscov));
}
static inline int udp_lib_checksum_complete(struct sk_buff *skb)
--
2.0.0.526.g5318336
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