From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 8 Apr 2010 12:54:35 +0000 (+0200)
Subject: netfilter: only do skb_checksum_help on CHECKSUM_PARTIAL in nfnetlink_queue
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e9f13cab49f7f28b65a6f63201fca56480b2e059;p=linux-beck.git

netfilter: only do skb_checksum_help on CHECKSUM_PARTIAL in nfnetlink_queue

As we will set ip_summed to CHECKSUM_NONE when necessary in
nfqnl_mangle, there is no need to zap CHECKSUM_COMPLETE in
nfqnl_build_packet_message.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Patrick McHardy <kaber@trash.net>
---

diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 7ba4abc405c9..08c1a33077a0 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -245,8 +245,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 		break;
 
 	case NFQNL_COPY_PACKET:
-		if ((entskb->ip_summed == CHECKSUM_PARTIAL ||
-		     entskb->ip_summed == CHECKSUM_COMPLETE) &&
+		if (entskb->ip_summed == CHECKSUM_PARTIAL &&
 		    skb_checksum_help(entskb)) {
 			spin_unlock_bh(&queue->lock);
 			return NULL;