From 7e3cead5172927732f51fde77fef6f521e22f209 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Tue, 10 Jun 2014 18:54:19 -0700 Subject: net: Save software checksum complete In skb_checksum complete, if we need to compute the checksum for the packet (via skb_checksum) save the result as CHECKSUM_COMPLETE. Subsequent checksum verification can use this. Also, added csum_complete_sw flag to distinguish between software and hardware generated checksum complete, we should always be able to trust the software computation. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- net/sunrpc/socklib.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'net/sunrpc/socklib.c') diff --git a/net/sunrpc/socklib.c b/net/sunrpc/socklib.c index 0a648c502fc3..2df87f78e518 100644 --- a/net/sunrpc/socklib.c +++ b/net/sunrpc/socklib.c @@ -173,7 +173,8 @@ int csum_partial_copy_to_xdr(struct xdr_buf *xdr, struct sk_buff *skb) return -1; if (csum_fold(desc.csum)) return -1; - if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE)) + if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE) && + !skb->csum_complete_sw) netdev_rx_csum_fault(skb->dev); return 0; no_checksum: -- cgit v1.2.3